What is a paycheck gross-up?
A gross-up is an added wage amount intended to cover taxes so the employee receives a target net payment.
Gross-to-net planning
Kentucky Gross-Up Paycheck Calculator
Plan a Kentucky gross-up by estimating the gross wage needed to leave a target net amount after payroll taxes and deductions.
Run the calculation
Build your paycheck
Kentucky · 2026 tax year · salaried or hourly
How much and how often you’re paid.
How are you paid?
$
Use flat 22% federal supplemental rate?
The IRS allows employers to withhold federal income tax from bonuses / supplemental wages at a flat 22% rate.
Required for accurate Social Security and Medicare surtax estimates mid-year.
$
Updates as you type
Key points
A gross-up increases taxable wages so the employee receives a desired net amount.
Federal, Kentucky, FICA, and local occupational tax can all affect a gross-up.
Gross-up math is iterative because each added dollar can create additional withholding.
4.8 (1,204 ratings)
What to check
1Enter the planned gross payment as a separate paycheck.
2Review the estimated net amount after taxes.
3Increase the gross amount and recalculate until the net result reaches the target.
Common questions
Can this estimate exact employer payroll liability?
It is a planning estimate. Exact payroll runs can include employer taxes, benefit rules, year-to-date wage caps, and local filing details.