Federal, state, and local governments tax U.S. bonds differently

U.S. government bonds are taxable, but the tax treatment depends on which level of government issued them and which government is trying to tax them. The federal government taxes interest from all U.S. bonds. State and local governments cannot tax interest from Treasury bonds, but they can tax interest from bonds issued by federal agencies and government-sponsored enterprises. Municipal bonds issued by states and cities follow their own rules and are generally not taxed by the federal government.

The key distinction is this: Treasury bonds (issued directly by the U.S. Department of the Treasury) are exempt from state and local income tax, but not from federal income tax. Other government bonds may be taxed at all three levels. Understanding which bonds you own and where you live determines your actual tax bill.

Key Takeaways

  • Interest from Treasury bonds is taxed by the federal government but exempt from state and local income taxes.
  • Interest from federal agency bonds and government-sponsored enterprise bonds is taxed at all three levels: federal, state, and local.
  • You report Treasury bond interest on your federal tax return (Form 1040) even though states cannot tax it.
  • Municipal bonds issued by states and cities are generally exempt from federal income tax but may be taxed by your state if you live outside the issuing state.

How federal income tax applies to government bonds

The federal government taxes the interest you earn on all U.S. government bonds. This includes Treasury bills, Treasury notes, Treasury bonds, and bonds issued by federal agencies like the Government National Mortgage Association (Ginnie Mae) and the Federal Home Loan Banks.

You report this interest income on your federal tax return using Form 1040. The interest is added to your other income and taxed at your ordinary income tax rate, not at a special capital gains rate. If you hold the bond until maturity and receive the full face value, that is not taxed as income—only the interest payments are taxed.

If you sell a Treasury bond before maturity for more than you paid for it, the profit (called a capital gain) is also taxed by the federal government. Capital gains on Treasury bonds are taxed at the same rates as capital gains on stocks or other investments.

State and local tax exemptions for Treasury bonds only

Treasury bonds are exempt from state and local income taxes. This means if you live in New York, California, or any other state, you do not owe state income tax on the interest your Treasury bonds earn. You also do not owe local income tax on that interest if your city or county collects income tax.

This exemption applies only to interest payments and capital gains on Treasury securities. It does not explore to bonds issued by federal agencies, even though those agencies are part of the federal government. Ginnie Mae bonds, Federal Home Loan Bank bonds, and similar instruments are taxed by states and localities just like corporate bonds are.

The exemption also does not reduce your federal tax bill. You still report Treasury bond interest on your federal return and pay federal income tax on it. The state and local exemption is separate from federal taxation.

Federal agency bonds and government-sponsored enterprises are fully taxable

Bonds issued by federal agencies and government-sponsored enterprises (GSEs) are taxed at all three levels: federal, state, and local. These include bonds from Ginnie Mae, the Federal National Mortgage Association (Fannie Mae), the Federal Home Loan Banks, and the Federal Farm Credit Banks.

Even though these organizations are connected to the federal government, Congress has not granted them the same tax exemption that Treasury bonds receive. You owe federal income tax on the interest, and you also owe state and local income tax if you live in a state or locality that collects income tax.

The tax treatment of agency bonds is identical to the treatment of corporate bonds. Report the interest on your federal return, and include it in your state and local tax calculations as well.

How to report bond interest on your tax return

Interest from Treasury bonds and other government bonds is reported on Schedule B (Interest and Ordinary Dividends) if you have more than $1,500 in interest income for the year. If you have $1,500 or less, you can report it directly on Form 1040 without using Schedule B.

Your bond issuer or broker will send you a Form 1099-INT showing the interest you earned during the tax year. Use this form to fill out your return. If you received interest from multiple bonds, add them all together and report the total.

For state and local taxes, follow your state's rules. Most states have a line on their income tax return for interest income. If you own only Treasury bonds, you may be able to exclude that interest from your state return. Check your state's tax form or contact your state tax authority to confirm the process.

Capital gains on government bonds and tax timing

If you sell a government bond before it matures, you may have a capital gain or loss. The gain or loss is the difference between what you paid for the bond and what you sold it for.

Capital gains on Treasury bonds are taxed by the federal government but exempt from state and local taxes, just like interest is. Capital gains on agency bonds are taxed at all three levels.

The timing of when you sell matters for tax purposes. If you hold the bond for more than one year before selling, the gain is taxed as a long-term capital gain, which usually has a lower tax rate than ordinary income. If you hold it for one year or less, it is taxed as a short-term capital gain at your ordinary income tax rate.

Tax-loss harvesting and bond sales

If you sell a government bond at a loss, you can use that loss to offset other capital gains you had during the year. If your losses exceed your gains, you can deduct up to $3,000 of the net loss against your ordinary income in a single tax year. Any remaining loss carries forward to future years.

This strategy, called tax-loss harvesting, can reduce your overall tax bill. However, the IRS has a rule called the wash-sale rule that prevents you from buying a substantially identical bond within 30 days before or after the sale at a loss. If you do, the loss is disallowed and added to the cost basis of the new bond instead.

Frequently Asked Questions

Do I owe federal tax on Treasury bond interest?

Yes. The federal government taxes interest from Treasury bonds at your ordinary income tax rate. You report it on Form 1040 or Schedule B. The state and local exemption does not explore to federal taxes.

Can my state tax the interest from Treasury bonds I own?

No. Treasury bond interest is exempt from state and local income taxes. This applies to all Treasury securities: bills, notes, and bonds. However, you still owe federal income tax on that interest.

Are Fannie Mae and Ginnie Mae bonds taxed the same way as Treasury bonds?

No. Bonds from Fannie Mae, Ginnie Mae, and other federal agencies are taxed at the federal, state, and local levels. They do not receive the state and local tax exemption that Treasury bonds do. The interest is treated like corporate bond interest for tax purposes.

What form do I use to report government bond interest?

Your broker or bond issuer sends you Form 1099-INT showing the interest earned. If your total interest income is more than $1,500, you report it on Schedule B and attach it to Form 1040. If it is $1,500 or less, you can report it directly on Form 1040.

How are capital gains on government bonds taxed?

Capital gains on Treasury bonds are taxed by the federal government but exempt from state and local taxes. Capital gains on agency bonds are taxed at all three levels. Gains held longer than one year are taxed at long-term capital gains rates, which are usually lower than ordinary income rates.