A single filer with no other income can receive roughly $65,550 in long-term capital gains and qualified dividends in 2026 without owing any federal income tax; for married couples filing jointly, that figure tops $131,000. Those numbers come from stacking the standard deduction on top of the 0% capital gains bracket, and they are only the starting point for how much investment income is tax free. Municipal bond interest, qualified Roth IRA and HSA withdrawals, 529 plan earnings used for education, and the home sale exclusion each add their own pools of income the federal government cannot reach.
The 0% Long-Term Capital Gains Bracket
The largest piece of tax-free investment income for most people is the 0% rate on long-term capital gains and qualified dividends. Federal law taxes these at preferential rates based on your total taxable income, and the lowest tier is zero.1Office of the Law Revision Counsel. 26 USC 1 Tax Imposed For 2026, the 0% rate applies to taxable income up to:
- Single filers: $49,450
- Married filing jointly: $98,900
- Head of household: $66,200
Cross those thresholds and additional gains are taxed at 15%. The 20% rate does not begin until taxable income exceeds $545,500 for single filers or $613,700 for joint filers.
Two conditions matter. First, the asset must be held for more than a year. The IRS counts from the day after you acquired it through the day you sold it; anything held a year or less is taxed as ordinary income at your regular rate.2Internal Revenue Service. Topic No. 409, Capital Gains and Losses Second, qualified dividends have their own holding rule: you need to have held the stock for at least 61 days during the 121-day window that begins 60 days before the ex-dividend date, and the dividend must come from a domestic corporation or a qualifying foreign company.1Office of the Law Revision Counsel. 26 USC 1 Tax Imposed
Gains Stack on Top of Ordinary Income
The 0% bracket is not a separate bucket. Capital gains sit on top of your ordinary income when the IRS determines what rate applies. A single filer earning $30,000 in wages has already used $30,000 of the $49,450 threshold, leaving only $19,450 of room for gains at 0%. Anything above that spills into the 15% bracket. This is where most people miscalculate.
How the Standard Deduction Expands Tax-Free Space
The standard deduction reduces gross income before the capital gains brackets are applied, effectively creating a buffer of income that disappears from the tax calculation entirely.3Office of the Law Revision Counsel. 26 USC 63 Taxable Income Defined For 2026:4Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
- Single filers: $16,100
- Married filing jointly: $32,200
- Head of household: $24,150
Combine the standard deduction with the 0% bracket and the total gross investment income you can receive tax-free grows substantially. A single filer living entirely on long-term capital gains can receive $65,550 ($16,100 + $49,450) before any federal tax applies. A married couple filing jointly can receive $131,100 ($32,200 + $98,900). The deduction erases the first slice, and the 0% bracket handles the rest up to the threshold.
This matters most for early retirees or anyone in a gap year between jobs. Someone living instead off a high-yield savings account or short-term bond fund still gets the standard deduction, but interest above it is taxed at ordinary rates rather than capital gains rates.
Municipal Bond Interest
Interest from bonds issued by state and local governments is excluded from federal gross income no matter how much you earn.5Office of the Law Revision Counsel. 26 USC 103 Interest on State and Local Bonds There is no income cap and no phase-out. A taxpayer earning $500,000 a year gets the same federal exclusion as someone earning $30,000.
The exclusion covers the interest income only. Selling a bond at a profit still produces a taxable capital gain. And the exclusion is federal: most states exempt interest on bonds issued within their own borders but tax interest from out-of-state munis, so in-state bonds can produce a double tax benefit that out-of-state bonds cannot. Municipal bond interest is also outside the 3.8% net investment income tax discussed below.6Internal Revenue Service. Topic No. 559, Net Investment Income Tax
One caveat: interest from certain private-activity municipal bonds can be pulled into the Alternative Minimum Tax calculation. If you are buying munis specifically for the tax benefit and have AMT exposure, stick to general obligation or essential-purpose revenue bonds.
Tax-Free Growth Accounts
Three account types let investment earnings grow and come out completely free of federal tax when you follow the rules.
Roth IRAs
Contributions are made with after-tax dollars, so there is no upfront deduction. In exchange, all growth inside the account and all qualified distributions are excluded from gross income.7Office of the Law Revision Counsel. 26 USC 408A Roth IRAs For 2026, the contribution limit is $7,500 for individuals under 50 and $8,600 for those 50 and older.8Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500
A distribution is tax-free once two conditions are met: the account has been open at least five tax years, and the owner is at least 59½ (or the withdrawal is due to disability or death).7Office of the Law Revision Counsel. 26 USC 408A Roth IRAs Original contributions can come out at any time without tax or penalty, since you already paid tax on that money going in. The five-year clock applies to the earnings.
Health Savings Accounts
HSAs offer what tax professionals call a triple tax benefit: contributions are deductible, earnings grow tax-free, and withdrawals for qualified medical expenses are tax-free at any age.9Office of the Law Revision Counsel. 26 USC 223 Health Savings Accounts Eligibility requires a high-deductible health plan. For 2026, contribution limits are $4,400 for self-only coverage and $8,750 for family coverage.10IRS. Revenue Procedure 2025-19, 2026 Inflation Adjusted Items for Health Savings Accounts
Balances roll over indefinitely. Many people use an HSA as a stealth retirement account, paying current medical bills out of pocket and letting the HSA invest for years. After age 65, withdrawals for any purpose are allowed, though non-medical withdrawals are then taxed as ordinary income.
529 Education Savings Plans
Contributions to 529 plans are after-tax, but investment growth is federal-tax-free as long as withdrawals go toward qualified education expenses.11Internal Revenue Service. 529 Plans, Questions and Answers Qualified expenses include college tuition, room and board, books, and computer equipment. Up to $10,000 per year can be withdrawn tax-free for K-12 tuition at private or religious schools.
The Home Sale Exclusion
Selling your home can produce one of the largest single tax exclusions available. Federal law allows you to exclude up to $250,000 of profit from the sale of your primary residence if you are a single filer, or up to $500,000 if you are married filing jointly.12Office of the Law Revision Counsel. 26 USC 121 Exclusion of Gain From Sale of Principal Residence These are not annual caps. They apply per sale, with no lifetime limit on how many times you use the exclusion, as long as you have not claimed it in the prior two years.
To qualify, you must have owned and lived in the home as your primary residence for at least two of the five years before the sale. The two years do not need to be consecutive. A married couple gets the $500,000 exclusion if both spouses meet the use requirement, at least one meets the ownership requirement, and neither claimed the exclusion within the last two years.12Office of the Law Revision Counsel. 26 USC 121 Exclusion of Gain From Sale of Principal Residence Any gain above the exclusion is taxed as a long-term capital gain.
What Can Still Erode These Benefits
Several rules can pull income back into taxation even when the exclusions above seem to apply.
The 3.8% Net Investment Income Tax
Higher earners face a separate 3.8% surtax on net investment income when modified adjusted gross income exceeds $200,000 for single filers or $250,000 for married couples filing jointly.13Office of the Law Revision Counsel. 26 U.S. Code 1411 – Imposition of Tax These thresholds are statutory and are not indexed for inflation.
The 3.8% applies to the lesser of your net investment income or the amount by which MAGI exceeds the threshold. It covers interest, dividends, capital gains, rental income, and royalties. It does not apply to tax-exempt municipal bond interest, distributions from qualified retirement plans including Roth IRAs and traditional 401(k)s, or the excluded portion of a home sale gain.6Internal Revenue Service. Topic No. 559, Net Investment Income Tax For investors above the threshold, the effective top rate on long-term capital gains reaches 23.8%.
Social Security Benefits Can Become Taxable
Retirees should know that investment income can make Social Security benefits taxable. The IRS calculates a “combined income” by adding half of your Social Security benefits to all your other income, including tax-exempt municipal bond interest.14Internal Revenue Service. Social Security Income If combined income exceeds set thresholds, part of your benefits gets pulled into taxable income:
- Single filers: combined income between $25,000 and $34,000 makes up to 50% of benefits taxable; above $34,000, up to 85%.
- Married filing jointly: combined income between $32,000 and $44,000 makes up to 50% taxable; above $44,000, up to 85%.
These thresholds have never been indexed for inflation. That tax-exempt bond interest counts toward combined income surprises many retirees. Roth IRA distributions do not count toward combined income, which is one reason Roth conversions before retirement age draw so much interest from tax-conscious planners.
The Kiddie Tax
Investment accounts set up for children come with a ceiling. For 2026, a child’s unearned income above $2,700 is taxed at the parent’s marginal rate rather than the child’s.15Internal Revenue Service. Topic No. 553, Tax on a Child’s Investment and Other Unearned Income (Kiddie Tax) The rule applies to children under 19, or under 24 if they are full-time students not providing more than half their own support. The first portion of unearned income is offset by the child’s own standard deduction, the next portion is taxed at the child’s rate, and only the amount above $2,700 is taxed at the parent’s rate.
State Income Tax
Federal rules are only half the picture. Most states tax capital gains and investment income at ordinary income tax rates, which range from roughly 2% to over 13%. A handful of states impose no individual income tax at all. A few offer preferential rates or partial exclusions for long-term gains. The 0% federal bracket does not exempt you from state tax, so a single filer who carefully keeps taxable income under $49,450 to avoid federal capital gains tax can still owe several thousand dollars to their state. Check your state’s treatment before assuming any investment income is truly tax-free.