Why do I owe so much in state taxes?

Common reasons for a state tax bill

1. Too little state tax was withheld. Your federal W-4 doesn't set your state withholding. Many states have their own form, and if you never filled it in, the default may be too low. Check the state wages and state tax boxes on your W-2.
2. Side income had no state tax taken out. Freelance and 1099 income usually has no state withholding, just as it has no federal withholding.
3. You moved during the year. You may owe a part-year return in each state, based on the income you earned while you lived there.
4. You worked in another state. A state can tax income you earned while working there, even if you live somewhere else. Your home state often gives a credit for tax paid to the other state, so check that it was claimed.
5. Business income from another state. A K-1 from a partnership or an S corporation can assign income to a state where the business operates.
6. Your state treats something differently. States don't always follow the federal rules on deductions and credits, so a state bill can rise even when your federal bill didn't.

If you live in Texas

Texas has no personal income tax. The Comptroller's list of Texas taxes includes franchise tax and sales tax, but no personal income tax return. So a state income tax bill sent to a Texas resident almost always comes from another state.

The usual causes: you worked or lived in another state for part of the year, you own a rental there, or a K-1 shows income from a state where the business operates. If you own a business, the bill may also be Texas franchise tax, which is a business report due May 15 each year, separate from your personal return.

People in Texas still ask why they owe so much in taxes when a state notice arrives, because the federal bill and the state bill often show up in the same week.

Source: Texas Comptroller, comptroller.texas.gov/taxes and the franchise tax page. Checked 26 October 2026.

Questions about a state tax bill

Does Texas have a personal income tax?

No. The Comptroller's tax list includes franchise tax for businesses, but no personal income tax. A state income tax notice is almost always from another state.

Can a K-1 create a tax bill in another state?

Yes, when the business reports income in that state. The state lines on the K-1 show where. Bring the K-1 to the call, and we'll look at it with you.

Is Texas franchise tax a personal income tax?

No. It's a tax on businesses, with an annual report due May 15. It's paid by the business, not on your personal return.

What if I moved during the year?

Each state may tax the income you earned while you lived or worked there. Your W-2 state boxes and your moving date show which state taxes which months.

How do I avoid a state bill next year?

Fill in your state's withholding form if it has one, include state tax in your estimated payments if you have side income, and update both when you move or start working in another state.

Send us the state notice

Send a short note, and we'll set up a free 30-minute call to find out where the state bill came from and how to keep it from coming back.

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