What Is Form 1099-G Used For?

Updated July 9, 2026 5 min read

Unemployment compensation and certain state tax refunds both get reported the same way: on a Form 1099-G, sent by a government agency rather than a bank or employer.

The short answer

Form 1099-G reports certain payments made by government agencies, most commonly unemployment compensation and, in some cases, a state or local tax refund from a prior year. Not every refund reported on this form is actually taxable — that depends on whether the filer itemized deductions in the year the tax was originally paid.

The most common boxes

Why a state refund can be taxable income

A state refund only becomes federally taxable if the filer previously deducted state taxes by itemizing rather than taking the standard deduction in the year those taxes were paid. The logic is that the deduction provided a tax benefit at the time, so getting some of that money back later effectively reverses part of the earlier benefit. Someone who took the standard deduction in the earlier year generally doesn’t owe tax on the same refund, even though a 1099-G was still issued.

Why the form still arrives either way

Government agencies generally issue a 1099-G whenever a qualifying payment or refund was made, regardless of whether it turns out to be taxable for the specific recipient — the taxability determination happens on the recipient’s return, not at the point the form is generated. This is a common point of confusion, since receiving the form can feel like confirmation that the amount is automatically income, when really it’s just a record of a payment that still needs to be evaluated against the filer’s own prior-year details.

What to do with the form at filing time

Reconciling a 1099-G against the prior year’s return, specifically whether itemizing was used, is the main step in figuring out whether a reported state refund needs to be included as income. If an earlier return turns out to need correcting because of this, it may connect to whether one needs to file an amended return for that prior year. For unemployment compensation, the reported amount in box 1 is more straightforward and generally gets included in full unless a specific exclusion applies for that filing year.

The practical version

A 1099-G isn’t a single category of income; it’s a form covering several different types of government payments that happen to share one form number. Reading the box labels carefully, and checking whether a reported refund followed an itemized deduction the year before, is what actually determines the tax outcome rather than the mere fact that the form arrived.