State Income Tax (SIT)

State Income Tax (SIT) paystub meaning: Income tax withheld for a state government — driven by where you work and where you live, and absent entirely in...

Income tax withheld for a state government — driven by where you work and where you live, and absent entirely in nine states.

State income tax withholding is the amount your employer sends to a state revenue department on your behalf. It is a separate system from federal withholding: separate rules, separate rates, and in most states a separate withholding certificate rather than the federal Form W-4. The structures vary more than people expect. Some states charge a single flat rate on wages — Pennsylvania at 3.07% in 2026, Illinois at 4.95% of net income, a rate in force since 1 July 2017. Others run graduated brackets like the federal system. Nine states took nothing from wage income in 2026: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington and Wyoming. Washington's revenue department states plainly that it has no individual income tax, and Nevada's tells residents who live and work there that no state return is required on earned income such as wages or salaries. Which state gets the money is not simply where you live. The starting rule is that wages are taxed where the work is performed, which is why a commuter can see two state lines on one stub — one for the work state, one for the home state. Reciprocity agreements override that between certain neighbours: Ohio, for instance, does not tax the wages of residents of Michigan, Indiana, Kentucky, West Virginia and Pennsylvania, whose employers withhold for the home state instead. Remote work is where this most often goes wrong. If payroll has an old work address on file, withholding can be running to a state you no longer set foot in. The fix is a corrected address and a new state certificate, filed with payroll, not a change on your federal W-4.

Tax entries on a pay statement depend on taxable wages, current employee elections, filing status, pay frequency, jurisdiction, and current agency instructions. Compare the current-period amount with year-to-date totals and the employer-issued record before treating it as final.

When this term appears on a statement, read its label, current amount, year-to-date amount, pay-period context, and any adjacent rate or hours together. Resolve a mismatch with the original issuer or the cited authority rather than changing a record to force a preferred result.