Safe investments: a risk ladder from insured savings to T-bills

The safest places for cash are insured bank and credit union deposits and US Treasury securities, but each gives up something different: quick access, a tax break, a locked rate or protection from inflation. This guide lines up nine options on one ladder.

By Sonic Wallet Editorial Team· Updated · 20 min read

Key takeaways

  • Safe investments are built to give your principal back in full: bank and credit union deposits insured by the FDIC or NCUA, Treasury bills, I bonds and TIPS backed by the US government, and government money market funds that hold little else. None is free of risk, because inflation, falling rates, exit penalties and uninsured balances can still cost you money.
  • FDIC and NCUA insurance each cover $250,000 per owner, per institution, per ownership category. SIPC replaces up to $500,000 of missing cash and securities, including $250,000 in cash, when a brokerage fails, but it never covers market losses. Treasury securities need no insurance because the US government owes the money directly.
  • On October 30, 2026, Treasury bills paid investment yields from 3.98% for 4 weeks to 4.36% for 52 weeks, against CPI inflation of 3.74% for the 12 months to September 2026 and an FDIC national average savings rate of 0.38%.
  • Treasury interest is exempt from state and local income tax and bank interest is not. On $25,000 for a year at a 22% federal and 5% state tax rate, our example 52-week bill keeps $858 after tax, a national-average 12-month CD $321 and a national-average savings account $69.
  • Match each dollar to the date you need it: insured savings for emergencies, bills or CDs that mature before a known expense, and I bonds or TIPS for inflation protection on money you can leave alone for years.

Safe investments, in the sense this guide uses, are places where the dollars you put in will still be there, in full, on the day you need them. That narrows the field to insured bank and credit union deposits, US Treasury securities, and a few funds and contracts built from them. Each buys its safety differently: some lock your money up, some leave the interest open to state income tax, and at average rates most pay less than inflation once tax is counted. Below, nine options are lined up as a ladder, with worked numbers for three of them on $25,000 at late-October 2026 rates.

What makes an investment safe?

Three things make an investment safe: its principal holds steady, an insurer or the US government backs it, and you can reach the cash when needed.

Principal stability. A savings balance does not shrink when markets fall, and a Treasury bill held to maturity pays its full face value. A government money market fund aims to keep its share price at $1.00, but that is a target rather than a promise. Under SEC rules, a fund whose value drifts more than half a cent from $1.00 must reprice, which is called breaking the buck.

Backing. The second test is who pays you if the institution fails. For deposits it is a federal insurance fund. For Treasuries it is the US government itself. For most funds and contracts it is only the assets inside them, plus whatever company stands behind them.

Access. Money is only as safe as your ability to reach it without a penalty or a forced sale at a bad price. A five-year CD at an insured bank is safe from default but expensive to break early, while a savings account makes the opposite trade: instant access at a rate that can drop at any time.

Safe does not mean that the yield beats inflation, that today's rate will last, or that every dollar in an account is covered. It also differs from what finance calls the risk-free rate, usually measured with the 3-month Treasury bill yield. Risk-free in that sense means no realistic chance of default in dollar terms, not protection from rising prices or falling rates. Our map of the types of investment risk shows which risks apply to which assets.

Stocks, bond funds, gold and crypto fail the first test, because their prices can fall a long way in a short time. They can belong in a long-term plan, but not on the ladder below.

How do the main safe investments compare?

They differ mainly in who protects the money, how fast you can reach it, how the interest is taxed and what drives the yield. The table starts with plain insured deposits and climbs to options that trade some simplicity for a locked rate, a state tax break or protection from inflation.

OptionProtectionAccess to cashHow the interest is taxedWhat the yield depends on
Checking and savings accountsFDIC at banks, NCUA at credit unions, up to the standard insurance limitSame day at your bank; a transfer to another bank can take a business day or moreOrdinary income each year, at federal, state and local ratesA rate the bank sets and can change at any time
High-yield savings accountsSame FDIC or NCUA coverageOnline transfers, usually within a few business days; some banks limit withdrawalsSame as savingsA variable rate that tends to follow the Fed's target range
Money market deposit accountsSame FDIC or NCUA coverageSame day, often with checks or a debit cardSame as savingsA variable rate, often tiered by balance
Bank and credit union CDsSame FDIC or NCUA coverageLocked until maturity; leaving early costs a penalty with no federal maximumTaxed as interest is credited or accrues, even if paid at maturity; a penalty is deductibleA fixed rate for the term, set when you open it
Brokered CDsFDIC coverage passes through from the issuing bank if the broker's records are right; SIPC covers custodyNo early withdrawal; sell at the market price, possibly at a loss, or hold to maturityLike bank CDs; a sale can add a gain or lossThe rate at issue, or the market yield if bought later; some are callable
Government money market fundsNot insured; at least 99.5% of assets in cash, government securities and fully collateralized repos; SIPC covers custody at a brokerSell on any business day at a price the fund aims to keep at $1.00Taxed as dividends at ordinary rates; part may be exempt from state taxShort-term rates on what the fund holds, minus expenses; changes daily
Treasury billsFull faith and credit of the US government, with no capRepaid at maturity, in terms of 4, 6, 8, 13, 17, 26 and 52 weeks; can be sold earlier at the market price through a brokerFederal income tax in the year of maturity; no state or local taxThe rate set at auction for the term you choose
I bonds and TIPSFull faith and credit of the US governmentI bonds: locked for a year, then a penalty before five years. TIPS: sold at the market price before maturityFederal tax only. I bond tax can wait until you cash out; TIPS inflation adjustments are taxed each yearI bonds: a fixed rate plus inflation, reset every six months. TIPS: a real yield set at auction plus principal indexed to CPI
Stable value fundsWrap contracts from insurers and banks; not insured or government-backedOnly inside workplace retirement plans; moves to a competing option can be blocked for about 90 daysTax-deferred inside the planA crediting rate, reset periodically, that smooths a bond portfolio's returns

The first three rungs are deposits with the same insurance and tax treatment, so they differ mainly in rate and convenience. High-yield savings accounts are usually online accounts whose rates move with the Federal Reserve's target range, currently 3.75% to 4.00% (Federal Reserve Board, as of Oct 28, 2026). A money market deposit account is a bank product and a money market fund is a security; the names sound alike, but only the first is insured, as money market fund vs money market account explains.

CDs trade access for a fixed rate. A bank or credit union CD can be broken for a penalty, while a brokered CD has to be sold to another investor, so its value before maturity moves with interest rates the way a bond's does.

Government money market funds are the first rung that is not a deposit. They own the same kinds of assets as the Treasury rungs, but they are uninsured mutual funds whose $1.00 price is a goal; how money market funds work covers the SEC rules behind them.

Treasury bills, I bonds and TIPS are owed by the US Treasury itself. Treasury bills are sold at a discount and repay face value at maturity, while I bonds and TIPS add inflation protection at the cost of a one-year lockup or price swings before maturity.

Stable value funds wrap a portfolio of high-quality bonds in contracts from insurers and banks, so plan participants can move money at book value, meaning principal plus credited interest. The balance is steady, but the backing is private and the option exists only inside retirement plans.

Who protects your money: the FDIC, NCUA, SIPC or the Treasury?

The FDIC and NCUA insure deposits, the US government stands behind Treasuries directly, and SIPC protects only the custody of what a brokerage holds for you.

FDIC insurance covers $250,000 per depositor, per insured bank, per ownership category. It applies to checking, savings, money market deposit accounts and CDs, but not to stocks, bonds, mutual funds (money market funds included), annuities, crypto assets or Treasury securities, even when bought at a bank. The FDIC says no depositor has lost a penny of insured funds since it was founded in 1933. Its goal is to pay insured depositors within two business days of a failure, and most often a healthy bank takes over the insured deposits so customers keep access.

Credit unions follow the same model through the NCUA's Share Insurance Fund, which covers $250,000 per share owner, per insured credit union, for each account ownership category and is backed by the full faith and credit of the United States. The NCUA says no one has lost a penny of insured deposits at a federally insured credit union. One gap: some state-chartered credit unions are privately insured instead, and that coverage carries no federal backing, so a credit union's insurance status deserves a check on the NCUA's website.

Both limits apply per ownership category, so a single account, a joint account, an IRA and a trust account at the same bank are counted separately. FDIC insurance explained works through the categories, and how to insure more than $250,000 compares the ways to cover a large balance.

Treasury securities need no insurance: TreasuryDirect states that all of them are backed by the full faith and credit of the United States government, whatever the amount. The risks that remain are mostly about price and timing rather than repayment, and our Treasuries hub covers bills, notes, bonds and how to buy them.

SIPC is a nonprofit corporation created by Congress, not a government insurance fund. When a member brokerage fails and customer assets are missing, it restores cash and securities up to $500,000 per customer, including up to $250,000 in cash. It does not cover a drop in market value, and it treats money market funds, CDs and Treasuries held at a broker as securities. FDIC vs SIPC sets the two systems side by side.

Middlemen add a layer. Broker cash sweeps, fintech apps and brokered CDs place your money at partner banks, where FDIC coverage passes through to you only if the records show that you own the funds. Nonbank companies are never FDIC-insured, the FDIC notes, so pass-through insurance protects you if the partner bank fails, not if the app or broker does. Cash sweep accounts explained shows how these programs spread money across banks.

How quickly can you get your money out?

Deposit accounts are available on demand, bills and funds can be sold on any business day, and CDs and I bonds penalize or block an early exit.

Access comes in four speeds on this ladder:

  • Same day: checking, savings and money market deposit accounts at your own bank. The Federal Reserve dropped the federal six-per-month limit on savings transfers in April 2020, though banks may keep their own limits or fees.
  • A business day or more: transfers to another bank, and sales of fund shares or Treasuries through a brokerage.
  • On a fixed date: CDs and Treasury bills repay at maturity, on a date you know when you buy.
  • At a price: before maturity, a bill, TIPS or brokered CD must be sold at that day's market price. For a short bill the change is usually small; for a long TIPS or brokered CD, higher rates can mean selling below cost.

Penalties and lockups are where safe money most often turns out to be less available than expected:

  • Bank CDs: federal rules set only a minimum early-withdrawal penalty, seven days of simple interest on money withdrawn within six days of the deposit, and no maximum. The penalty can exceed the interest earned so far and eat into the deposit itself.
  • Brokered CDs: there is no early-withdrawal option. You sell on the secondary market, possibly at a loss and after fees, and the SEC warns that some CDs may have no market at all.
  • I bonds: Not cashable for 12 months; cashing before 5 years forfeits the last 3 months of interest.
  • Treasuries bought at TreasuryDirect: they must be held for 45 days and then transferred to a bank or broker to be sold, so a 4-week bill bought there can only be held to maturity. Selling Treasuries before maturity covers the steps.
  • Money market funds: any fund may charge a liquidity fee during heavy redemptions, and prime and tax-exempt funds can be required to; in extreme cases a fund can suspend redemptions permanently and liquidate.
  • Stable value funds: plans often bar direct transfers to a competing option, such as a money market fund, for about 90 days, a rule known as an equity wash.

How to buy Treasury bills compares TreasuryDirect, brokers and funds, including how quickly the cash comes back.

How is the interest on safe investments taxed?

Bank interest faces federal and state income tax, while Treasury interest is federal-only, so two equal headline yields can leave you different amounts after tax.

The rules for each rung, from IRS Topic 403, IRS Publication 550 and TreasuryDirect:

  • Deposits and CDs: interest is ordinary income in the year it is credited and available to withdraw, and credit union dividends count as interest. On a CD longer than a year, part of the interest is taxable each year even if it is paid at maturity. Form 1099-INT arrives once interest reaches $10, and a CD early-withdrawal penalty is deductible.
  • Treasury bills, notes and TIPS: federal income tax applies, but state and local income taxes do not. Bill interest is generally reported in the year the bill matures. With TIPS, the inflation adjustment to principal is taxable in the year it happens, even though you receive it only at maturity.
  • I bonds: federal tax only, deferrable until you cash the bond or it stops earning after 30 years, and excludable when used for qualified higher education costs.
  • Money market funds: payouts are reported as dividends, not interest, and are generally taxed as ordinary income. Some states let you exclude the part a fund earned from Treasuries; California, for example, allows it only if at least half of the fund's assets were in such exempt obligations at the end of each quarter.
  • Retirement accounts: inside an IRA or 401(k), tax waits until withdrawal, and traditional-account withdrawals are taxed as ordinary income, so the state tax break on Treasuries is lost. T-bills in an IRA weighs that trade-off.

To compare one rung with another, convert each yield to what you keep:

After-tax yield = Yield × (1 − federal tax rate − state tax rate)

For Treasuries, leave out the state rate. The formula ignores the federal deduction for state income taxes, which helps only people who itemize.

Worked example: $25,000 for one year at three benchmark rates, after tax

Assumptions: a 22% federal tax bracket and a 5% state income tax, with rates from late October 2026.

  • Savings account at the FDIC national average of 0.38%: $25,000 × 0.38% = $95.00 of interest. Federal tax is $20.90 and state tax $4.75, so you keep $69.35, an after-tax yield of 0.28%.
  • 12-month CD at the FDIC national average of 1.76%: $25,000 × 1.76% = $440.00 of interest. Federal tax is $96.80 and state tax $22.00, so you keep $321.20, or 1.28%.
  • 52-week Treasury bill at the 4.17% discount rate quoted on October 30, 2026: the price is $100 × (1 − 0.0417 × 364 ÷ 360) = $95.7837 per $100 of face value. Because the minimum is $100, in $100 increments, $25,000 buys $26,100 of bills for $24,999.54. At maturity you receive $26,100, or $1,100.46 of interest. Federal tax is $242.10 and there is no state tax, so you keep $858.36, a 3.43% after-tax return over the 364 days.

The bill keeps about 12 times as much as the average savings account and about 2.7 times as much as the average CD. Individual banks' rates vary widely around these deposit-weighted averages, which lean toward the biggest banks, so run the same arithmetic on the rates you are actually offered.

Banks quote an APY, which includes compounding, while bills are quoted as a discount rate and an investment yield; APY vs APR and discount rate vs investment rate explain the conventions. Your own state tax matters too: with no state income tax, a bill and a CD with the same yield leave you the same amount, and the gap widens as the state rate rises. Are T-bills taxable? and T-bills vs CDs work through the details.

Do safe investments keep up with inflation?

Some do and some don't: in late October 2026, Treasury bills yielded slightly more than inflation, while average bank savings and CD rates yielded far less.

What you earn after inflation, the real return, decides whether safe money keeps its buying power. The FDIC's latest national averages are 0.38% for savings, 0.63% for money market deposit accounts and 1.76% for a 12-month CD, weighted toward the biggest banks because they hold the most deposits. The quick way to compare any yield with inflation:

Real return ≈ After-tax yield − Inflation rate

The guide to real returns and inflation gives the exact version and shows how often cash has beaten inflation over time.

The table below lists the consumer price index for the last 13 months. Its final column, the change from a year earlier, is the inflation rate quoted in the news. Use the most recent month for comparisons and the trend for context, since a single month can jump on one category; in September 2026, gasoline accounted for more than half of the monthly increase, according to the BLS.

US consumer price inflation (CPI-U)
MonthCPI-U indexChange from a year earlier
Sep 2026336.940+3.7%
Aug 2026334.980+3.4%
Jul 2026333.918+3.4%
Jun 2026333.952+3.5%
May 2026335.123+4.2%
Apr 2026333.020+3.8%
Mar 2026330.213+3.3%
Feb 2026326.785+2.4%
Jan 2026325.252+2.4%
Dec 2025324.054+2.7%
Nov 2025324.122+2.7%
Sep 2025324.800+3.0%
Aug 2025323.976+2.9%
Source: US Bureau of Labor Statistics, CPI for All Urban Consumers, all items, not seasonally adjusted (CUUR0000SA0), as of Sep 2026. BLS published no index for Oct 2025. The table skips such a month, and a 12-month change that would need it shows n/a.

The next table shows bill yields for every term, refreshed each business day from Treasury data. Read the investment yield column, which Treasury publishes so bills can be compared with coupon-paying securities, and subtract the latest 12-month inflation figure above for a rough real yield before tax; the change columns show which way bill rates have moved.

Treasury bill rates on Oct 30, 2026
TermDiscount rateInvestment yieldPrice per $1,000Yield vs a month agoYield vs a year ago
4-week3.91%3.98%$996.96+0.07 pts0.00 pts
6-week3.91%3.98%$995.44-0.04 pts+0.04 pts
8-week4.00%4.08%$993.78+0.02 pts+0.11 pts
13-week3.99%4.08%$989.91-0.05 pts+0.23 pts
17-week4.07%4.18%$986.55-0.05 pts+0.31 pts
26-week4.11%4.25%$979.22-0.09 pts+0.43 pts
52-week4.17%4.36%$957.84-0.18 pts+0.66 pts
Source: US Department of the Treasury, Daily Treasury Bill Rates, as of Oct 30, 2026. These are secondary-market closing rates, so they differ slightly from auction results. The discount rate is the bank discount rate; the investment yield is the coupon-equivalent yield. Price per $1,000 is for a bill with exactly that term, from the discount rate. Comparisons use Sep 30, 2026 and Oct 30, 2025.

Inflation-protected rungs work differently. An I bond bought now pairs a fixed rate of 1.40% for the life of the bond with an inflation rate that resets every six months, currently 2.04% for six months (4.08% annualized), for a composite rate of 5.51%. TIPS build inflation into the principal instead: on October 30, 2026, the 5-year TIPS yielded 2.25% above inflation and the 10-year 2.60%. The gap between ordinary and TIPS yields, about 2.46 percentage points at five years and 2.34 at ten, shows the inflation rate the market was pricing in, not a forecast. I bonds vs TIPS compares purchase limits, taxes and liquidity, and the Treasury yield curve page tracks real yields daily.

Worked example: The same $25,000 after 3.74% inflation

Consumer prices rose 3.74% in the 12 months to September 2026, with the CPI-U index at 336.940 against 324.80 a year earlier. Keeping up would have taken $25,935.00 at the end of the year, or $25,934.52 for the $24,999.54 placed in the bill.

  • Average savings account: $25,069.35 after tax, $865.65 short, a real return of about −3.3%.
  • Average 12-month CD: $25,321.20 after tax, $613.80 short, about −2.4%.
  • 52-week bill: $25,857.90 after tax, $76.62 short, about −0.3%. Before tax, its $26,100 would have beaten inflation by $165.48, about 0.6%.

At 3.74% inflation, prices double in about 19 years (72 ÷ 3.74 ≈ 19.3). Even a real return of −1% a year erases almost a tenth of a balance's buying power in a decade, because 0.99 multiplied by itself ten times is about 0.904.

The Rule of 72 behind that doubling estimate works for growth too: divide 72 by a yield to see roughly how many years money takes to double. How compound interest works shows the math in both directions.

Which safe investment fits your goal and timeline?

Match each dollar to the date you will need it, so that no money you need soon sits behind a penalty, a lockup or a price that can fall.

Emergency fund

Emergency money has one job: to be there the same day, at full value. That points to insured savings or money market deposit accounts, sometimes with a second layer in a government money market fund or short bills for money less likely to be touched. Sizing an emergency fund starts from essential costs and income stability, and where to keep an emergency fund compares accounts by how fast the money arrives.

Cash you need in 3, 6 or 12 months

When the date is known, a bill or CD that matures just before it locks the rate and avoids a forced sale: a 13-week bill for three months, a 26-week bill for six, and a 52-week bill or 12-month CD for a year. If the money goes out in pieces, a T-bill ladder or a CD ladder staggers maturities to match. A high-yield savings account suits a date that may move, since the money never locks. Where to park cash short term compares the three horizons, while T-bills vs high-yield savings and T-bills vs money market funds go head to head.

Down payment

A home purchase usually has a target window rather than a fixed date. One common structure puts the core in bills or CDs that mature before the earliest likely closing and keeps a flexible portion in insured savings for the earnest money deposit, inspections and delays. Stocks are risky for a goal one to three years away, because prices can fall sharply within months and may not recover in time; the SPY page shows how widely the S&P 500 fund has ranged over the past 52 weeks. Where to keep a down payment works through a dated timeline.

Retirees

A common retirement approach splits savings into buckets by date: a year or two of spending in insured savings and bills, the next several years in a CD or Treasury ladder, and the rest in longer-term investments, with TIPS or I bonds covering part of the inflation risk. The near buckets mean stocks never have to be sold after a fall to pay bills, a danger known as sequence-of-returns risk. Safe investments for retirees builds a worked income plan, including how a 401(k) stable value option compares with the plan's money market fund.

Are stablecoins or gold safe places for cash?

Not in the sense this guide uses: gold's price swings widely, and stablecoin balances carry no FDIC or SIPC protection, so neither combines principal stability with official backing.

Dollar stablecoins are tokens designed to hold a $1.00 value, and the federal GENIUS Act sets rules for their issuers:

  • Status: Signed July 18, 2025 (Public Law 119-27); takes effect January 18, 2027
  • Reserves: at least 1:1 reserves in cash or Federal Reserve balances, deposits at insured banks and credit unions, Treasuries with 93 days or less to maturity, overnight repos and reverse repos backed by Treasuries, government money market funds that hold only those assets, other liquid federal government assets a regulator approves, and tokenized versions of the non-repo assets

Those reserves overlap with the deposit, money market fund and Treasury bill rungs of the ladder, but owning a token is not the same as owning those assets. A stablecoin balance has no deposit insurance, SIPC does not count stablecoins among the securities it protects, and any yield offered on them comes from a platform or lending arrangement rather than from deposit interest, which adds that platform's risk. Stablecoin yield vs bank interest traces where that yield comes from, and our stablecoin comparison page covers the largest coins and how each type holds its peg.

Tokenized Treasury funds, which hold bills and repurchase agreements and record ownership on a blockchain, are closer to the government money market fund rung in what they own. They add issuer, custody and smart-contract risk, though; our explainer on on-chain US T-bills describes how they work.

Gold pays no interest, and its dollar price can fall sharply and stay down for years, so it fails the principal-stability test even though many investors hold it as a hedge. Is gold a safe investment? looks at its drawdowns and inflation record next to cash and Treasuries. For money you will not need for many years, the stock and crypto guides on our Learn home cover investments that take more risk for the chance of higher returns.

What are the risks of safe investments?

The main risks are inflation, falling rates when you reinvest, penalties and lockups, and money held above insurance limits or through a middleman.

Inflation. This is the risk that does the most damage, quietly. In the inflation example above, an average savings account fell about 3.3% behind prices in a single year. Only I bonds and TIPS adjust for inflation by design, and both have limits: I bond purchases are capped at $10,000 in electronic I bonds per person per calendar year, and TIPS prices fall when real yields rise.

Rates and reinvestment. Savings and money market rates float, so they tend to drop soon after the Fed cuts. Bills and CDs hold their rate only until maturity, and the money then has to be reinvested at whatever the market pays. Longer instruments flip the risk: a five-year brokered CD or TIPS locks a rate for longer, but its market price falls if rates rise before you sell. How Fed rate decisions affect T-bill rates and why bond prices fall when rates rise cover both sides.

Liquidity and penalties. The exit rules described above usually cost nothing if you can wait for maturity, but an emergency is exactly when waiting is not an option.

Institution and platform risk. Banks do fail. When one does, the acquiring bank does not have to keep the failed bank's rates or terms, so a high CD rate can disappear, although depositors may then withdraw without penalty. Apps and sweep programs depend on accurate records, and privately insured credit unions, brokerages and stable value wrap providers each add their own credit exposure. TreasuryDirect removes the middleman for Treasuries but has its own account and access hurdles, covered in the TreasuryDirect account guide.

Uninsured balances. Above the limit, a depositor becomes a creditor of the failed bank. The FDIC pays uninsured depositors as it sells the bank's assets, which can mean less than the full amount and can take several years. A home sale, an inheritance or a growing business account are common ways to cross the limit without noticing.

Policy and fraud. Even Treasuries carry some policy risk, such as debt-ceiling standoffs that can unsettle bills maturing near a deadline; are Treasuries risk-free? looks at what has and has not happened. Scammers also borrow the language of safety, with fake bank sites, apps and CD offers, and a broker's record can be checked on Investor.gov.

How to choose a safe place for your cash

These five steps work for any amount, from a first emergency fund to the proceeds of a house sale.

  1. List each sum of money and the date you need it

    Give every pot of money a date or a window: any day for emergencies, a known month for tuition or taxes, a season for a home purchase. Money with no date yet can wait in insured savings until it gets one.

  2. Match the date to a rung

    Use the ladder table: same-day money in deposit accounts, dated money in bills or CDs that mature before the date, and inflation protection for money you will not touch for years in I bonds or TIPS.

  3. Confirm the protection

    Look up a bank on BankFind or a credit union with the NCUA, add up what you already hold there in the same ownership category, and for apps and sweeps find out which bank holds the money. For a money market fund, check that it is a government fund.

  4. Compare yields after tax and inflation

    Run each quoted rate through the after-tax formula, leaving out state tax for Treasuries, then subtract the latest inflation rate. The Treasury bill calculator turns a face value, discount rate and term into a purchase price, interest amount and investment yield.

  5. Read the exit terms and set reminders

    Note the CD penalty, any broker fees, the I bond lockup and the fund's fee policy before you commit, and put every maturity date in a calendar so that money does not roll into a new term by default.

Rates in this guide come from the Treasury, the FDIC, the BLS and TreasuryDirect on the dates shown, and the live tables refresh from the same sources. Our editorial policy explains how we check them.

All Safe investments guides

Frequently asked questions

Are money market funds FDIC insured?+

No. A money market fund is a mutual fund, so the FDIC does not insure it, even when a bank sells it. A government money market fund keeps at least 99.5% of its assets in cash, government securities and fully collateralized repurchase agreements and aims for a $1.00 share price, but that price is not guaranteed. SIPC protects the shares only if your brokerage fails and they go missing. A bank money market deposit account, by contrast, is FDIC-insured.

Can you lose money in a CD?+

Not on an insured bank or credit union CD held to maturity within the insurance limit: you get the deposit back plus the agreed interest. You can end up with less than you put in if you withdraw early and the penalty exceeds the interest earned so far, since federal rules set only a minimum penalty, or if you sell a brokered CD after rates have risen.

Is it safe to keep more than $250,000 in one bank?+

Only the first $250,000 per owner in each ownership category at that bank is insured. If the bank fails, the FDIC aims to pay insured balances within two business days, while the uninsured part becomes a claim on the failed bank's assets that may be paid only in part and can take years. Using more ownership categories or more banks, or holding Treasury bills, keeps more of a large balance fully protected.

What is the safest place to put $100,000?+

Measured by the chance of getting every dollar back, $100,000 fits within one FDIC or NCUA limit for a single owner at a single institution, and Treasury bills carry the direct backing of the US government with no cap. The right choice depends on timing: savings accounts give daily access at a variable rate, while bills and CDs lock a rate until a set date.

Do you pay tax on high-yield savings interest?+

Yes. Savings interest is ordinary income in the year it is credited to your account, taxed at your federal rate plus any state and local income tax, and banks send Form 1099-INT once you earn $10 or more. Interest on Treasury bills, by contrast, is exempt from state and local income tax, which matters most in high-tax states.

Are I bonds a safe investment right now?+

I bonds are backed by the full faith and credit of the US government and their rate follows inflation. Bonds bought from November 1, 2026 to April 30, 2027 earn a 5.51% composite rate: a 1.40% fixed rate for the life of the bond plus an inflation rate that resets every six months. The trade-offs are a $10,000 yearly limit per person, no access for 12 months and the loss of three months of interest if cashed within five years.

Sources

  1. Understanding Deposit Insurance, FDIC
  2. Deposit Insurance FAQs, FDIC
  3. Your Insured Deposits, FDIC
  4. Payment to Depositors, FDIC
  5. Banking With Third-Party Apps, FDIC
  6. National Rates and Rate Caps, FDIC
  7. Share Insurance Coverage, NCUA
  8. What SIPC Protects, SIPC
  9. Money Market Funds: Investor Bulletin, SEC (Investor.gov)
  10. Brokered CDs: Investor Bulletin, SEC (Investor.gov)
  11. What are the penalties for withdrawing money early from a CD?, OCC (HelpWithMyBank.gov)
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  19. Daily Treasury Par Yield Curve Rates, October 2026, US Department of the Treasury
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  21. Consumer Price Index news release, September 2026, US Bureau of Labor Statistics
  22. Topic no. 403, Interest received, IRS
  23. Publication 550, Investment Income and Expenses, IRS
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  27. Federal Reserve issues FOMC statement, October 28, 2026, Federal Reserve Board
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  29. I bonds, TreasuryDirect (US Treasury)
  30. S.1582: GENIUS Act, Congress.gov
  31. Public Law 119-27 (GENIUS Act), section 4, Congress.gov
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