Tax-exempt income is money that federal law permanently excludes from your gross income, so no federal income tax is owed on it when received and none comes due later. The list is broader than most people expect and includes municipal bond interest, life insurance death benefits, gifts and inheritances, child support, qualified scholarships, damages for physical injuries, employer-paid health premiums, qualified Roth IRA and HSA distributions, combat zone pay, and federally declared disaster relief. The catch worth knowing up front: several of these amounts still get counted when the government decides how much of your Social Security is taxable, what you pay for Medicare, and whether you owe Alternative Minimum Tax.
What Counts as Tax Exempt
Internal Revenue Code Section 61 defines gross income as “all income from whatever source derived.”1Office of the Law Revision Counsel. 26 USC 61 – Gross Income Defined That default is deliberately wide. For any dollar to escape tax, a separate provision has to carve it out by name. Without that override, the IRS treats it as taxable.
Tax-exempt is not the same as tax-deferred. Money in a traditional IRA is deferred: no tax on the way in, tax on the way out. Tax-exempt income is gone from the tax base for good. The exclusions Congress has written into the code tend to share a pattern. If money replaces a salary, it is almost always taxable. If it reimburses a loss, provides a safety net, or supports something the government wants to encourage, it usually is not.
The Categories That Qualify
Municipal Bond Interest
Interest on bonds issued by state and local governments is generally exempt from federal income tax under Section 103.2Office of the Law Revision Counsel. 26 USC 103 – Interest on State and Local Bonds The exemption is why municipal bonds carry lower yields than comparable taxable bonds. One important qualifier: interest from certain private activity bonds is treated differently for the Alternative Minimum Tax, discussed below.
Life Insurance Death Benefits
When a life insurance policy pays out because the insured died, the beneficiary receives the proceeds free of federal income tax under Section 101, whether in a lump sum or installments.3Office of the Law Revision Counsel. 26 USC 101 – Certain Death Benefits Interest earned on proceeds left with the insurance company after the death is not covered, and the exclusion generally does not apply if the policy was transferred for valuable consideration before the insured died.
Gifts and Inheritances
Money or property received as a gift or inheritance is not part of your gross income, no matter the amount.4Office of the Law Revision Counsel. 26 USC 102 – Gifts and Inheritances Any gift tax obligation falls on the giver. Once you own the property, income it later generates (dividends from inherited stock, for example) is taxable to you as ordinary income.
Child Support
Child support is not taxable to the recipient parent and not deductible by the paying parent.5Internal Revenue Service. Alimony, Child Support, Court Awards, Damages 1 It does not count toward the income thresholds that determine whether you have to file.
Qualified Scholarships
Scholarship and fellowship money spent on tuition, fees, and books, supplies, and equipment required for your courses is excluded from gross income if you are a degree candidate at an eligible school.6Office of the Law Revision Counsel. 26 USC 117 – Qualified Scholarships Amounts used for room, board, or travel are taxable, and so is any scholarship money that exceeds qualified expenses.7Internal Revenue Service. Publication 970 – Scholarships, Fellowship Grants, Grants, and Tuition Reductions
Damages for Physical Injuries
Damages received for personal physical injuries or physical sickness are excluded under Section 104, whether awarded by a court or paid in settlement.8Office of the Law Revision Counsel. 26 USC 104 – Compensation for Injuries or Sickness The word “physical” does real work. Damages for emotional distress standing alone are taxable unless the distress originated from a physical injury, and punitive damages are always taxable even in a physical injury case.
Employer Health Premiums and Some Group Life Coverage
Premiums your employer pays for accident and health coverage are excluded from your gross income under Section 106, and the same generally applies to your share paid pre-tax through a cafeteria plan.9Office of the Law Revision Counsel. 26 USC 106 – Contributions by Employer to Accident and Health Plans Employer-provided group term life coverage is tax-free up to $50,000 of coverage; the cost of anything above that must be added to your taxable wages.10Office of the Law Revision Counsel. 26 USC 79 – Group-Term Life Insurance Purchased for Employees
Roth IRA and HSA Distributions
Qualified distributions from a Roth IRA are entirely tax-free. To qualify, the account must have been held for at least five tax years and you must meet one of these conditions: reach age 59½, become disabled, or receive the distribution as a beneficiary after the account holder’s death.11Office of the Law Revision Counsel. 26 USC 408A – Roth IRAs Distributions that miss the requirements can be subject to income tax and a 10% early distribution penalty on the earnings portion.
Health savings account withdrawals used for qualified medical expenses are also excluded from gross income.12Office of the Law Revision Counsel. 26 USC 223 – Health Savings Accounts HSA money spent on anything else is taxable and, if you are under 65, carries a 20% penalty on top.
Combat Zone Pay
Military members serving in a designated combat zone can exclude their military compensation from gross income for any month with even partial service in the zone.13Office of the Law Revision Counsel. 26 USC 112 – Certain Combat Zone Compensation of Members of the Armed Forces Enlisted members and warrant officers can exclude all their military pay for those months. Commissioned officers are capped at the highest enlisted pay rate plus hostile fire pay.14Internal Revenue Service. Tax Exclusion for Combat Service The exclusion also covers hospitalization resulting from combat zone service, for up to two years after the member’s last month in the zone.
Disaster Relief Payments
Qualified disaster relief payments are excluded from gross income under Section 139.15Office of the Law Revision Counsel. 26 USC 139 – Disaster Relief Payments Covered amounts include reimbursement of personal, family, living, or funeral expenses tied to a federally declared disaster, plus funds used to repair or replace a damaged home and its contents, but only to the extent insurance did not already cover the loss. FEMA and state disaster assistance is generally tax-free.
Where “Tax Exempt” Still Costs You
The label is misleading if you take it at face value. Several federal calculations add tax-exempt income back in, and the result can raise what you owe elsewhere or shrink benefits you would otherwise receive. Retirees feel this most sharply.
Social Security Benefit Taxation
Whether your Social Security benefits become taxable turns on “provisional income,” which combines your adjusted gross income, half your Social Security benefits, and all your tax-exempt interest.16Office of the Law Revision Counsel. 26 USC 86 – Social Security and Tier 1 Railroad Retirement Benefits Above $25,000 for a single filer or $32,000 for a couple filing jointly, up to 50% of benefits become taxable. Above $34,000 (single) or $44,000 (joint), up to 85% are taxable.17Internal Revenue Service. Publication 915 – Social Security and Equivalent Railroad Retirement Benefits
A retiree living on Social Security and municipal bond interest can push a real portion of benefits into taxable territory because of the “tax-free” bond income. The bond interest itself stays untaxed. It simply makes other income taxable that otherwise would not have been.
Medicare Premium Surcharges
Medicare Part B and Part D premiums are based on modified adjusted gross income, and MAGI includes tax-exempt interest. Beneficiaries with individual MAGI above $109,000 (or $218,000 for joint filers) pay an income-related monthly adjustment amount on top of the standard premium.18Centers for Medicare & Medicaid Services. 2026 Medicare Parts A and B Premiums and Deductibles The brackets climb steeply. At the top tier, individual filers with MAGI of $500,000 or more pay an added $487 per month for Part B and $91 per month for Part D. IRMAA looks at your return from two years earlier, so a single year of unusually high tax-exempt interest raises Medicare costs two years later, and the surcharge is per person.
Affordable Care Act Premium Tax Credits
If you buy coverage through the marketplace, eligibility for premium tax credits also runs off MAGI, which again includes tax-exempt interest.19Internal Revenue Service. Modified Adjusted Gross Income Near the eligibility threshold, a few thousand dollars of municipal bond interest can cost more in lost subsidy than the interest was worth.
Alternative Minimum Tax on Private Activity Bonds
Interest from most municipal bonds is exempt for both regular tax and AMT. Interest from certain private activity bonds is not: it is a tax preference item that must be added back when calculating whether you owe AMT.20Internal Revenue Service. Instructions for Form 6251 Private activity bonds are municipal bonds financing projects that mainly benefit private entities, such as airports, industrial development, or certain housing.
Not every private activity bond triggers AMT. Bonds issued by 501(c)(3) organizations, qualified mortgage bonds issued after July 30, 2008, and certain disaster-area bonds are excluded from the preference calculation.21Internal Revenue Service. TEB Phase II – Lesson 4 General Rules for Private Activity Bonds Payers report the includable interest in Box 9 of Form 1099-INT, and mutual funds report the relevant portion in Box 13 of Form 1099-DIV. If either box has a figure, Form 6251 is how you check for AMT liability.
States Handle This Differently
A federal exemption does not automatically carry over to your state return. States tax on their own authority and can define income however they like. Many follow the federal code closely; some do not. Municipal bonds show the effect most cleanly: interest from a bond issued by your home state is typically exempt on both returns, while interest from another state’s bond stays federally exempt but may be fully taxable at the state level. Some states also tax portions of Social Security benefits or insurance payouts that the federal government excludes. Check your state’s department of revenue instructions before assuming the two returns match.
Reporting It on Your Return
Tax-exempt income does not raise your tax bill, but most of it still has to be reported. The IRS uses tax-exempt interest to figure the taxable share of Social Security benefits, to test for AMT, and to calculate certain credits.
Banks and brokerages report tax-exempt interest on Form 1099-INT, Box 8.22Internal Revenue Service. Instructions for Forms 1099-INT and 1099-OID Mutual funds holding municipal bonds report exempt-interest dividends on Form 1099-DIV, Box 12.23Internal Revenue Service. Instructions for Form 1099-DIV On Form 1040, total tax-exempt interest goes on Line 2a.24Internal Revenue Service. Instructions for Form 1040 The amount does not flow into taxable income, but leaving it blank will not match the forms the IRS already has on file.
Gifts and inheritances do not generate a 1099 for the recipient. Keeping your own paper trail on any significant transfer is still worth doing, because documentation is what stops the IRS from reclassifying a large deposit as taxable income.
Hold supporting records for at least three years from the filing date, longer in specific situations: seven years for claims involving worthless securities or bad debt, and six years if unreported income exceeded 25% of the gross income shown on the return.25Internal Revenue Service. How Long Should I Keep Records For tax-exempt income, keeping the 1099s and supporting paperwork for six years is a reasonable margin, since the argument that something was misclassified is exactly the kind of dispute that reaches back further than three years.