Freelance & Self-Employment Taxes by State: A 2026 Filing Guide

Tax year note. The state income tax rates on these pages come from the published tax year 2025 rate tables. The installment due dates belong to the 2026 installment year. The states have not yet released their 2026 tax-year rate tables; when they do, these pages will be updated.

Why state tax matters more than most freelancers think

State income tax is easy to ignore. It never appears on a 1099, and nobody withholds it for you. That is exactly what makes it a problem.

As a W-2 employee, your employer withheld state tax all year, so April was a formality. As a 1099 freelancer, no one does that. You are responsible for estimating your own state bill and paying it in installments — or paying a penalty. The federal system gives you the same choice; the state system repeats it on its own schedule, with its own thresholds.

The stakes scale with income and geography. In a high-tax state, the state layer can rival the federal self-employment tax on the same dollar. In a no-income-tax state, the income tax disappears — but franchise taxes and sales taxes can still apply. And in a few places, a local tax stacks on top of the state tax: New York City, Yonkers, and San Francisco each add their own layer.

So the useful question is not "do I owe state tax?" It is "which state's rules apply to me, and when do its payments come due?"

Scale is what makes this worth an hour of your time. Among the five states below, the top marginal state rate runs from zero in Texas to a combined 13.3% for single filers in California. The same profit produces a very different state bill depending on where you live — and the penalties for guessing wrong arrive later, with interest.

A quick example. Marisol, a graphic designer, spent three years freelancing in Austin, where her 1099 income drew no state personal income tax. After she moved to Sacramento, the same work suddenly came with a California return, a $500 prepayment threshold, and a four-date quarterly calendar. Her clients did not change; her state did. That shift is the whole reason this cluster exists.

The federal layer that never changes

Whatever your state does, four federal numbers apply to every freelancer in exactly the same way:

• Self-employment tax of 15.3% — 12.4% Social Security plus 2.9% Medicare — on net profit.
• An effective rate near 14.1%, because that 15.3% applies to 92.35% of net earnings.
• An additional 0.9% Medicare tax above $200,000 (single), $250,000 (joint), or $125,000 (married filing separately).
• A 2026 Social Security wage base of $184,500.

These do not change by state, so a state guide is a supplement to the federal one, not a replacement. Read the state pages below with the federal baseline already in hand.

Four steps to find the state that taxes you

Step 1 — Start with residency. Your home state taxes your income if you are a resident. Residency turns on domicile (where you live and intend to return) and, in many states, statutory tests such as day counts or maintaining a permanent place of abode.

Step 2 — Then check where you do the work. States also tax nonresidents on income sourced to the state. If you live in one state and perform services there for a client in another, sourcing rules decide which state — and possibly both — can tax the income. Remote work makes this the single most common source of surprise.

Step 3 — Add your locality. Once the state is settled, check the city and county layer. Only a few local regimes are verified on this site — New York City, Yonkers, the MCTMT, and San Francisco — but where they apply they add more than a percentage point on top of the state rate.

Step 4 — Apply the state's filing and prepayment thresholds. Every state sets its own line for "you must file" and its own line for "you must prepay." Crossing the prepayment line means four installments through the year, not one payment in April.

Work through those four steps once, and you have your answer for the year. Change residency or start working in a new state mid-year, and you repeat them for the split year.

Five states, five different situations

The table below shows how far the rules diverge across five states with large freelance populations. Every rate and threshold links to a state source on the individual page.

Read the rows, not just the rates:

• California is the high-complexity, high-rate case. A graduated income tax tops out at 12.3%, a 1% surtax brings single filers to a combined 13.3% above $1,000,000 (joint and head-of-household filers reach 13.3% later, at their own bracket thresholds), and San Francisco adds a local gross receipts regime for larger businesses.
• Texas is the opposite. There is no personal income tax and no state prepayment, but a business-level franchise (margin) tax and a sales tax permit can still apply once you stop operating as a plain sole proprietorship.
• New York has the most layers: a state tax that reaches 10.9%, a New York City income tax for city residents, a Yonkers surcharge, and the MCTMT for self-employed people working in the metropolitan region.
• New Jersey looks moderate on rates (10.75% top) but has a low filing threshold, so ordinary freelance income can trigger a return.
• Massachusetts is the simplest: a 5.00% flat rate, plus a 4% surtax only for income above the annual threshold. It is the easiest state in this set to forecast.

If you want the federal mechanics behind all of this first, start with the self-employment tax guide before drilling into a state.

The mistakes that cost self-employed filers the most

A few errors show up again and again.

• Assuming the state rate is flat. Most state income taxes here are graduated. The "top rate" applies only to your last dollars, not your whole income.
• Missing that a state has its own prepayment trigger. The federal rule is not the state rule. California's trigger is $500, New Jersey's is $400, and New York judges three separate taxes against a $300 line.
• Using the wrong quarterly split. Most states divide installments evenly. California does not: its required fractions are 30% / 40% / 0% / 30%. Assuming four equal quarters can leave you underpaid.
• Forgetting the local layer. If you live or work in New York City, Yonkers, or San Francisco, the state rate is not your whole story.
• Treating "no income tax" as "no tax." In Texas, franchise and sales taxes can still apply, and the federal self-employment tax never goes away.

How to use these state pages

Each state page in this cluster answers the same five questions, so you can compare them without re-learning the format:

1. Does the state have an income tax?
2. What is the top rate for self-employed filers, and where does it start?
3. When must you file, and when must you prepay?
4. What are the estimated tax due dates?
5. Which local taxes apply?

Every page cites its figures to the state authority for a stated tax year, so you can check the source yourself. If you file in more than one state, read both pages and expect to split your income rather than pick one — the split-year rules do not bend to convenience.

Where these numbers come from

• California Franchise Tax Board — 2025 Form 540 booklet — California rate schedules and the Behavioral Health Services Tax
• Texas Comptroller of Public Accounts — no personal income tax — confirmation that Texas has no personal income tax
• Texas Comptroller of Public Accounts — Franchise Tax — the $2,650,000 No Tax Due threshold and rates
• New York State Department of Taxation and Finance — who must make estimated tax payments — the $300 threshold
• New Jersey Division of Taxation — estimated tax — the $400 threshold and quarterly schedule
• Massachusetts Department of Revenue — tax rates — the 5.00% rate and the 4% surtax
• Massachusetts DOR — estimated tax payments — the state's prepayment framework

Local-layer details and their primary sources — New York City, Yonkers, the MCTMT, and San Francisco — live on the individual state pages.

Rates reflect tax year 2025 (the latest published tables); installments are for 2026. States have not yet published 2026 tax-year rate tables. Last verified September 2026.