Most retired people do have to file a federal tax return, but the requirement turns on how much taxable income you receive during the year, not on your age or retirement status. For 2026, a single filer who is 65 or older doesn’t need to file until gross income reaches roughly $18,150. A married couple filing jointly where both spouses are 65 or older crosses the line at about $35,500. Once pensions, traditional IRA or 401(k) withdrawals, taxable Social Security, and investment income are added together, many retirees clear those numbers without realizing it.
2026 Filing Thresholds by Age and Status
The threshold is the standard deduction for your filing status plus the extra amount added for being 65 or older. If your gross income stays below that combined figure, filing is generally optional. For 2026:
- Single, 65 or older: about $18,150 ($16,100 standard deduction plus $2,050 age addition)
- Married filing jointly, both spouses 65 or older: about $35,500 ($32,200 plus roughly $1,650 per qualifying spouse)
- Head of household, 65 or older: $24,150 standard deduction plus the age addition
Those figures are higher than in past years because of inflation adjustments.1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 Only one spouse in a joint filing needs to be under 65 for the couple to use a slightly lower threshold, since the age add-on is per qualifying spouse.
What Income Counts Toward the Threshold
Gross income means all taxable income, not just wages. For a retiree, that usually includes:
- Pension and annuity payments (fully taxable if funded entirely with pre-tax dollars; partly taxable if you contributed after-tax money)
- Withdrawals from traditional IRAs and 401(k)s
- The taxable portion of Social Security
- Interest from savings accounts and CDs
- Ordinary and qualified dividends
- Rental income
- Capital gains from selling investments
Long-term capital gains are taxed at 0% for 2026 up to $49,450 of taxable income for single filers and $98,900 for joint filers, but the gain still counts toward gross income when deciding whether you have to file.1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
Some income doesn’t count. Qualified distributions from Roth IRAs and Roth 401(k)s are excluded, provided the account has been open at least five years and you’re at least 59½ (or disabled, or using up to $10,000 for a first home).2Internal Revenue Service. Publication 590-B – Distributions from Individual Retirement Arrangements Life insurance proceeds, gifts, inheritances, and the return-of-basis portion of annuity payments are also outside gross income.
How Social Security Fits In
Social Security is only partly counted, and sometimes not counted at all. The IRS uses a “combined income” formula: your adjusted gross income, plus any tax-exempt interest, plus half of your Social Security benefits.
For a single filer, combined income between $25,000 and $34,000 makes up to 50% of benefits taxable. Above $34,000, up to 85% is taxable. For joint filers, the two breakpoints are $32,000 and $44,000.3Internal Revenue Service. Publication 915 – Social Security and Equivalent Railroad Retirement Benefits Congress set these numbers in 1993 and never indexed them for inflation, so more retirees cross them every year.4Office of the Law Revision Counsel. 26 USC 86 – Social Security and Tier 1 Railroad Retirement Benefits
If Social Security is your only meaningful income, your combined income will usually stay below $25,000, none of your benefits will be taxable, and you likely won’t need to file. Add a pension or an IRA withdrawal and the picture changes quickly. A retiree with $24,000 in Social Security and $20,000 from a traditional IRA has combined income of $32,000, and half of the Social Security becomes taxable.3Internal Revenue Service. Publication 915 – Social Security and Equivalent Railroad Retirement Benefits
Required Minimum Distributions Force the Issue
Even retirees who would rather leave their traditional accounts alone eventually have to draw them down. If you were born between 1951 and 1959, required minimum distributions from traditional IRAs, 401(k)s, and similar accounts start at age 73. If you were born in 1960 or later, they start at 75.5Office of the Law Revision Counsel. 26 USC 401 – Qualified Pension, Profit-Sharing, and Stock Bonus Plans
Your first RMD is due by April 1 of the year after you reach the applicable age. Every RMD after that is due by December 31. Delaying the first one until the April 1 deadline means two RMDs land in the same tax year, which can push you into a higher bracket and make more of your Social Security taxable.
Skipping an RMD is costly: the penalty is 25% of what you should have withdrawn, dropping to 10% if you correct the miss within two years.6Internal Revenue Service. Retirement Plan and IRA Required Minimum Distributions FAQs RMDs are fully taxable as ordinary income and count toward gross income for the filing threshold. Roth accounts are exempt from RMDs during the owner’s lifetime.
The $400 Self-Employment Exception
One rule catches retirees off guard. If you earn $400 or more in net self-employment income during the year, you must file a federal return regardless of your total gross income, your age, or whether you already collect Social Security and Medicare.7Internal Revenue Service. Self-Employment Tax – Social Security and Medicare Taxes
Freelance consulting, selling crafts online, rideshare driving, and similar side income all count. The $400 threshold applies to net profit after business expenses, but it’s a low bar, and self-employment tax for Social Security and Medicare applies on top of any regular income tax.
When Filing Makes Sense Even If You Don’t Have To
Filing a voluntary return can put money back in your hands. If your pension administrator or the Social Security Administration withheld federal income tax from your payments during the year, the only way to recover it is to file and claim the refund.8Internal Revenue Service. Refundable Tax Credits
Refundable credits are another reason. They pay out any excess as a refund even when you owe no tax. Retirees still working part-time or raising a grandchild sometimes qualify for credits they’d otherwise miss.
What Happens If You Skip a Return You Owed
If you were required to file and didn’t, the failure-to-file penalty is 5% of the unpaid tax for each month the return is late, capped at 25%.9Internal Revenue Service. Failure to File Penalty Interest also runs on unpaid balances. Missing several years while penalties and interest accumulate can leave you owing far more than the original tax. If you owe nothing, there’s no financial penalty for filing late, but the IRS won’t send a refund until the return is in.
State Returns Are a Separate Question
Federal filing rules are only part of the picture. Nine states have no broad-based income tax, so retirees living there have no state return to worry about. Other states exempt some or all retirement income, including pensions, IRA distributions, or Social Security. Most states, though, tax at least some retirement income and have their own thresholds. If you live in a state with an income tax, check its treatment of your retirement income before assuming you can skip the state return.