Tax calculations

The withholding is right before you approve

Federal, state, and local — on every check

Payrollix calculates federal, state, and local withholding on each paycheck at the current rates, keeps the tables up to date for you, and shows both the employee and employer side so nothing is a surprise at deposit time.

What gets calculated on every run

The full stack of payroll taxes, current and traceable — not a best-guess estimate.

Federal withholding

Federal income tax, Social Security, and Medicare — including the additional Medicare surtax — worked out on every check.

State income tax

Withholding for all 50 states, kept current as rates and brackets change through the year.

Local taxes

City, county, and school-district taxes where they apply — including the tricky ones like Pennsylvania Act 32 and Ohio municipalities.

Current-form W-4

Handles the 2020-and-later W-4 with its steps and extra-withholding fields, plus employees still on a legacy card.

Rates update themselves

Tax tables refresh in the background when agencies publish changes — you don’t reload anything.

Employer + employee side

Both halves of every tax are calculated, so the employer’s share and deposit liability are always clear.

Why the numbers hold up

Every paycheck taxed at the current federal, state, and local rates

Local tax handled for the hard jurisdictions (PA, OH, MI)

Rate and bracket changes applied automatically

Pre-tax and post-tax deductions handled correctly

Employer tax liability calculated alongside employee withholding

Every calculation is traceable for an audit

By the numbers
50

States supported

Federal

FICA + income tax

Local

PA · OH · MI

Auto

Rate updates

On every paystub

Every tax, itemized on the check

What the engine calculates shows up plainly on the employee’s paystub — gross, each tax withheld, net, and year-to-date — so there’s nothing to reconcile by hand.

  • Federal income tax, Social Security, and Medicare, line by line
  • State income tax withheld at the current rate
  • Net pay and year-to-date totals kept in step
  • The same figures that flow onto the W-2 at year end
Employee paystub showing gross pay, federal and state tax, Social Security, Medicare, net pay, and year-to-date totals

Stop double-checking the tax math

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