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ボーナス計算機

税額控除後の実質ボーナスを計算します。

はじめに

Bonus Calculator — Calculate net bonus pay after federal and state withholding. Enter Bonus amount, Federal withholding rate (%), State withholding rate (%) to get an instant, accurate result.

計算式

Federal withholding = bonus × 22% (the IRS flat supplemental wage rate). State withholding = bonus × your entered state rate. Net bonus = bonus − federal withholding − state withholding.

ステップごとの説明

  1. Enter the Bonus amount.
  2. Enter the Federal withholding rate (%).
  3. Enter the State withholding rate (%).
  4. Click Calculate to see your result instantly.

実例

Example: With Bonus amount = 5000, Federal withholding rate (%) = 22, State withholding rate (%) = 0, the Bonus Calculator gives Federal Withholding: 1100, State Withholding: 0, Net Bonus: 3900.

よくある質問

Why 22%?
22% is the IRS's flat federal supplemental wage withholding rate commonly applied to bonuses under $1 million — it's a withholding rate, not necessarily your final tax rate, which is reconciled when you file.
Does this include state tax?
Only if you enter a state withholding rate — it defaults to 0% since rates vary by state.
What inputs does the Bonus Calculator need?
You'll need to provide: Bonus amount, Federal withholding rate (%), State withholding rate (%). All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Bonus Calculator?
The Bonus Calculator applies the formula exactly as calculated — Federal withholding = bonus × 22% (the IRS flat supplemental wage rate). State withholding = bonus × your entered state rate. Net bonus = bonus − federal withholding − state withholding. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Are these results guaranteed?
No. The Bonus Calculator gives an estimate based on the numbers you enter and standard financial formulas — actual rates, fees, taxes, and terms vary by lender, institution, and jurisdiction, and can change over time. This is not financial advice; consult a qualified financial professional for decisions specific to your situation.
Is the Bonus Calculator free to use?
Yes, the Bonus Calculator is completely free, requires no signup, and runs instantly in your browser.

ボーナス計算機について

The Bonus Calculator uses a real, verifiable formula — Federal withholding = bonus × 22% (the IRS flat supplemental wage rate). State withholding = bonus × your entered state rate. Net bonus = bonus − federal withholding − state withholding. — so results are accurate every time, not an approximation.