IRS Form 310 is the document the IRS uses to tell you why your refund was reduced or delayed

When the IRS sends you Form 310 (officially called the "Notice of Federal Tax Liability"), it means they found a reason to hold back part or all of your refund. This is not a penalty notice or a rejection of your return. It is a notification that your refund money is being used to pay something you owe the federal government — usually back taxes, unpaid student loans, or child support arrears.

The form arrives separately from your refund check or deposit. You will receive it in the mail, typically within two to four weeks of when the IRS processes your return. The notice tells you exactly what debt triggered the offset and which federal agency is receiving your money.

This process is called tax refund offset, and it happens automatically when the IRS matches your Social Security number against the Treasury Offset Program database. You do not have to do anything to trigger it — the IRS and other federal agencies check this database before releasing any refund.

Key Takeaways

  • Form 310 notifies you that your refund was reduced or withheld to pay a federal debt like back taxes, student loans, or child support.
  • The offset happens automatically through the Treasury Offset Program, which the IRS checks before releasing any refund money.
  • You will receive the form in the mail after your return is processed, and it specifies which agency received your money and why.
  • If you believe the offset was wrong, you have the right to request a hearing, but you must act within a specific timeframe.
  • Offsets for child support or spousal support take priority over other debts, and the IRS cannot offset money owed for current-year taxes.

What debts trigger a Form 310 offset

The IRS can offset your refund for federal debts only. The most common reasons are unpaid federal income taxes from prior years, defaulted federal student loans, and court-ordered child support or spousal support arrears. State income tax debts do not trigger a federal offset, though your state may have its own offset program.

The order of priority matters. Child support and spousal support offsets happen first, followed by federal agency debts (like overpaid unemployment benefits or federal employee debts), then federal student loan defaults, and finally back federal income taxes. If your refund is large enough, multiple agencies may each take a portion.

The IRS will not offset money you owe for taxes in the current year you are filing. The debt must be from a prior tax year and must have gone through the normal collection process — the IRS does not offset for taxes still under audit or dispute.

How to read your Form 310

The form lists four key pieces of information: the amount of your refund that was offset, the type of debt that caused the offset, the federal agency that received the money, and the date the offset occurred. It also includes a reference number you can use if you contact the IRS or the agency involved.

The form will show one of these debt categories: "Federal Income Tax", "Federal Student Loan", "Child Support", "Spousal Support", "Unemployment Insurance Overpayment", or "Other Federal Debt". If you are unsure what the debt is, the form includes contact information for the agency that received your money.

Keep your Form 310 with your tax records. If you dispute the offset or need to prove you paid the debt, you will need this document as evidence of when and how much was withheld.

Requesting a hearing if you believe the offset was wrong

You have the right to request a hearing if you think the IRS offset your refund by mistake. This might happen if the debt was already paid, if the debt belongs to someone else with a similar name or Social Security number, or if you were not the person who incurred the debt.

You must request the hearing within 60 days of receiving Form 310. Send a written request to the IRS office listed on the form, stating why you believe the offset was incorrect. Include copies of any documents that support your claim — payment receipts, proof the debt was discharged in bankruptcy, or evidence the debt belongs to another person.

The IRS will review your request and either uphold the offset or reverse it. If reversed, you will receive the withheld amount as a refund. This process typically takes 30 to 60 days, though complex cases may take longer.

What happens to the money after offset

Once the IRS offsets your refund, the money goes directly to the agency or creditor listed on Form 310. You do not receive it, and the agency does not send it to you — the transfer is direct from the IRS.

For child support or spousal support, the money goes to the state child support enforcement agency, which then distributes it to the custodial parent or spouse. For federal student loans, the money goes to the Department of Education or the loan servicer. For back taxes, the money is applied to your tax account with the IRS.

The offset reduces your debt but does not eliminate collection efforts if the debt is larger than your refund. The IRS or other agencies may continue collection activities for the remaining balance.

Preventing future offsets

If you know you have an outstanding federal debt, you can try to resolve it before filing your tax return. Paying back taxes directly to the IRS, bringing federal student loans current, or arranging a payment plan can prevent an offset.

For child support arrears, contact your state's child support enforcement agency to discuss payment options or a settlement. Many agencies will work with you on a payment plan if you show good faith effort to pay.

If you cannot pay the full debt, filing your return on time and requesting a payment plan with the IRS may delay an offset while you make payments. However, this does not may provide the IRS will not offset a future refund if the debt remains unpaid.

Distinguishing Form 310 from other IRS notices

Form 310 is different from other notices you might receive. A Notice of Federal Tax Liability (which is what Form 310 is officially called) is specifically about refund offset. A Notice of Tax Due tells you that you owe taxes and have not paid them. A Notice of Deficiency means the IRS disagrees with something on your return and is proposing additional tax.

If you receive a Form 310, you do not owe additional taxes — your refund was straightforward redirected to pay an existing debt. If you also receive a notice about taxes owed, those are separate issues and require separate responses.

Frequently Asked Questions

Can the IRS offset my refund for state income taxes?

No. The federal offset program only applies to federal debts. However, your state may have its own offset program for state income taxes, child support, or other state debts. You would receive a separate notice from your state if that happens.

What if I am married and filed jointly, but only my spouse owes the debt?

The IRS can offset the entire joint refund if either spouse has a federal debt. Your spouse can request "injured spouse" relief if they did not incur the debt and want their portion of the refund returned. This requires filing Form 8379 with the IRS.

Can I appeal a Form 310 offset after the 60-day window?

The 60-day window is strict for requesting a hearing. After that, your options are limited. You can still contact the agency that received the money to dispute the underlying debt, but you cannot reverse the offset itself through the IRS.

Will I receive a Form 310 if my refund is offset for current-year taxes?

No. The IRS does not offset refunds for taxes owed in the same year you are filing. Form 310 only applies to debts from prior years that have already gone through collection processes.

How long does it take to get my refund back if the offset is reversed?

If the IRS approves your hearing request and reverses the offset, you will receive the refund within 30 to 60 days. The IRS will issue it as a check or direct deposit, depending on how you originally filed.