Moving Between States: What Actually Changes on Your Paycheck

When you move states, three things happen to your paycheck — only one of which most people anticipate.

1. Federal tax and FICA don't change

Federal income tax brackets apply nationally. Social Security (6.2%) and Medicare (1.45%) don't care where you live. On a $100,000 salary, your federal tax bill is exactly the same in Houston as in Seattle as in Honolulu: about $14,500 federal + $7,650 FICA = $22,150 in federal-level taxes, regardless of state.

That's the floor. Every American pays at least that much on $100K.

2. State income tax can swing take-home by up to 10%

This is the big one. The spread between best and worst states on a $100,000 salary is roughly:

• Nine zero-state-tax states (Texas, Florida, Tennessee, Washington, Nevada, Wyoming, South Dakota, Alaska, New Hampshire): $0 in state income tax.
• Flat-rate states (Illinois 4.95%, Colorado 4.4%, Kentucky 4%, Utah 4.65%, etc.): a few percent, predictable regardless of income.
• Progressive states (California, New York, Oregon, Hawaii, Minnesota): top brackets push 10–13% at high incomes. $100K filers pay around 5–7% effective.

At $100K gross, moving from California to Texas saves you approximately $5,500/year in state tax alone.

3. City and local taxes (the sneaky third layer)

Most people forget this one. A handful of cities levy their own income tax on top of state + federal:

• New York City: 3.078% to 3.876% progressive resident tax.
• Philadelphia: 3.75% wage tax for residents (3.44% for non-residents working in the city).
• Columbus, Cleveland, Cincinnati: Ohio cities run 2–2.5% local income tax.
• Portland, OR metro: 1% Metro supportive housing + 1% preschool tax above certain thresholds.
• Baltimore + MD counties: piggyback on state tax at 2.25–3.2%.

NYC's local tax alone costs a $100K worker about $3,300/year on top of NY state's 6%+ take. A single move from Manhattan to Jersey City drops you from NY state + NYC (~10% combined) to NJ state only (~5.5%) — a $4,500+ swing on the same paycheck.

The residency gotcha (for remote workers)

If you live in one state and work for an employer in another, your tax residency is usually where you physically do the work, not where your employer is headquartered. Exceptions exist via reciprocity agreements — a dozen states have paired agreements that let employees file only in their home state. Check your specific state pair before assuming.

A handful of states — New York, New Jersey, Connecticut, Delaware, Arkansas, Nebraska, Pennsylvania — use a "convenience of the employer" rule. If your employer is in one of those states and you work remotely elsewhere, they may still tax you as if you were physically there. This catches a lot of remote workers by surprise.

What to do before you move

1. Run your current + target state through the compare states tool at your salary level. See the actual dollar gap.
2. If the target is a city with local income tax, use the city-specific calculators for the exact after-local-tax number.
3. Use the moving salary calculator to factor in cost-of-living on top of taxes — COL often matters more than the tax gap.
4. Establish your new residency clearly: change your driver's license, voter registration, and address on file with the IRS within 30 days of the move. This avoids dual-residency claims from your old state.

The bottom line

A job offer with the same gross salary in a different state is almost never the same deal. On a $100K base, the state-tax-alone swing is $0–$7,000/year. Add local tax and cost of living and the real take-home gap can stretch into five figures. Run the numbers before you sign.