Yes, you can buy I Bonds with your tax refund, but only through a specific IRS form and only if you file on paper

The IRS lets you redirect part or all of your federal tax refund directly into Series I Savings Bonds instead of receiving it as cash or a deposit. You do this by filing Form 8888 with your paper tax return — you cannot do it through e-file or the IRS website. The bonds are issued in your name and held by the Treasury Department, and you can start earning interest immediately.

This is not the same as buying bonds after you receive your refund. Once the money lands in your bank account, you would buy bonds through TreasuryDirect.gov like anyone else. The Form 8888 route is a way to have the IRS send your refund directly to the Treasury as bond purchases instead of sending it to you.

Key Takeaways

  • You must file a paper tax return and include Form 8888 to redirect your refund into I Bonds; e-filing does not support this option.
  • You can split your refund among up to three different destinations: a bank account, Series EE Bonds, and Series I Bonds.
  • The minimum purchase through Form 8888 is $50, and you can buy up to $5,000 in I Bonds per person per calendar year through this method.
  • I Bonds purchased this way are registered in your name and earn interest based on the current composite rate, which changes every six months.
  • You cannot cash in I Bonds for at least one year, and if you cash them before five years, you lose the last three months of interest.

How to split your refund using Form 8888

Form 8888 is called "Allocation of Refund (Including Savings Bond Purchases)." You attach it to your paper Form 1040 when you mail your return to the IRS. On the form, you specify how much of your refund goes to each destination: your checking account, your savings account, Series EE Bonds, or Series I Bonds.

You can direct money to up to three different places. For example, you could send $2,000 to your bank account, $1,500 into I Bonds, and $500 into EE Bonds. The amounts must add up to your total refund. You need your routing number and account number if you are directing part of the refund to a bank account, and you need your Social Security number for the bond purchases (which the IRS already has).

Mail your return and Form 8888 together to the IRS address for your state. Processing takes the same amount of time as a regular paper return — typically four to six weeks, though it can take longer during tax season. Once the IRS processes your return, it sends your refund to the Treasury, which issues the bonds in your name.

Annual and purchase limits for I Bonds through Form 8888

The $5,000-per-person annual limit applies to I Bonds purchased through Form 8888. This is separate from the $10,000 annual limit for buying bonds directly through TreasuryDirect.gov with your own money. So if you buy $5,000 in I Bonds using your tax refund, you can still buy another $10,000 through TreasuryDirect later that same calendar year — for a total of $15,000.

The minimum purchase through Form 8888 is $50. You cannot buy I Bonds in amounts smaller than that, but you can buy them in any increment of $50 above the minimum. If your refund is $3,200 and you want to put $1,500 into I Bonds, that works fine. If you want to put $1,525 in, you would need to round to $1,500 or $1,550.

How I Bonds earn interest and when you can access the money

I Bonds earn interest based on a composite rate set by the Treasury Department every six months, on May 1 and November 1. The rate has two parts: a fixed rate that stays the same for the life of the bond, and an inflation rate that changes twice a year based on the Consumer Price Index. The current composite rate is posted on TreasuryDirect.gov.

You cannot cash in an I Bond for at least one year after you buy it. If you cash it in before five years have passed, you lose the last three months of interest as a penalty. After five years, you can cash it in anytime without penalty. The bonds continue to earn interest for up to 30 years, so you are not forced to cash them in at any point.

Interest compounds semiannually, meaning the Treasury adds interest to your bond every six months, and future interest is calculated on the new total. You do not receive interest payments — the money stays in the bond until you cash it in.

Tracking your bonds and accessing them later

Once the IRS sends your refund to the Treasury, the bonds are registered in your name and appear in your TreasuryDirect account. You can log in to TreasuryDirect.gov using your Social Security number and a password you create. Your bonds show up there within a few weeks of the IRS processing your return.

To cash in the bonds, you log into TreasuryDirect, select the bonds you want to redeem, and request the redemption. The money is deposited into the bank account you have linked to your TreasuryDirect account. Redemptions typically process within a few business days.

If you lose access to your TreasuryDirect account or forget your password, you can reset it using your Social Security number and email address. If you have questions about bonds purchased through Form 8888, the Treasury's customer service team can look up your bonds by your Social Security number.

Why you might choose I Bonds over a regular refund deposit

I Bonds are designed to protect against inflation. The composite rate adjusts every six months, so if inflation rises, your interest rate rises with it. This makes them useful if you do not plan to spend the money for at least a year and want some protection against your savings losing purchasing power.

I Bonds also have a fixed component to the rate, which means you earn a may provide minimum return even if inflation drops. The trade-off is that you cannot access the money for a year, and you lose three months of interest if you cash in before five years. For money you know you will not need immediately, this can be a reasonable choice.

If you are filing your taxes anyway and you have a refund, using Form 8888 saves you a step — you do not have to receive the money and then log into TreasuryDirect to buy the bonds separately. The IRS handles the purchase for you as part of processing your return.

What happens if you change your mind after filing

Once you file your return with Form 8888, you cannot change the allocation if the IRS has already processed it. If you realize you made a mistake before the IRS processes your return, you can file an amended return using Form 1040-X and a new Form 8888 with the corrected amounts. This only works if you catch the error before the IRS processes the original return.

If the IRS has already issued the bonds and you want to cash them in, you can do so through TreasuryDirect, but you will face the penalties described above — no redemption for one year, and loss of three months of interest if you redeem before five years. There is no way to undo the purchase and get the money back as a regular refund once the bonds are issued.

Frequently Asked Questions

Can I buy I Bonds with my tax refund if I file electronically?

No. Form 8888 only works with paper returns mailed to the IRS. If you file electronically through a tax software or tax preparer, you cannot use this form. You would need to receive your refund normally and then buy I Bonds separately through TreasuryDirect.gov.

What is the difference between I Bonds and EE Bonds?

I Bonds earn interest based on inflation plus a fixed rate, so they adjust every six months. EE Bonds earn a fixed rate set when you buy them and do not change. I Bonds are better if you expect inflation; EE Bonds are better if you want a may provide rate. Both have the same one-year holding period and five-year penalty.

Can someone else cash in the I Bonds I bought with my refund?

No. I Bonds are registered in your name and only you can redeem them. If you die, your estate or beneficiary can redeem them, but during your lifetime, only you have access. This is different from some other savings vehicles and is one reason bonds are considered secure.

Do I pay taxes on the interest I earn from I Bonds?

Yes, but you can defer paying federal income tax on the interest until you redeem the bonds or they mature at 30 years. Some states do not tax I Bond interest. You report the interest on your tax return in the year you cash them in. If you use the bonds for education expenses, you may be able to exclude the interest from income under certain conditions.

What if my refund is smaller than $50?

You cannot buy I Bonds with an amount smaller than $50 through Form 8888. If your refund is less than $50, you would need to direct it to a bank account or buy bonds separately later with your own money through TreasuryDirect.