Arizona Bonus Pay Tax Calculator

2026 Arizona bonus withholding

Arizona Bonus Pay Tax Calculator

Estimate net bonus pay, compare federal flat and aggregate supplemental wage withholding, apply the employee's Arizona Form A-4 percentage, and gross up a promised take-home bonus.

Explore TimeTrex payroll Use payroll tax calculator

Bonus inputs

Use gross-to-net for a planned bonus or net-to-gross when a take-home amount was promised.

Gross bonus amount Enter the taxable bonus to be paid.

Supplemental pay type

Federal withholding method

Payment presentation If the bonus is not separately stated, federal withholding uses combined wage logic.

Regular wages had federal income tax withheld

The optional 22% federal flat method generally depends on regular wages having had income tax withheld in the current or prior year.

Pay frequency

Year-to-date wages before bonus Use same-employer wages for Social Security, Additional Medicare, and FUTA checks. Arizona UI uses its own YTD wage field below.

YTD supplemental wages before bonus

Regular wages for this pay period Used for aggregate withholding comparisons.

Federal W-4 settings

Federal filing status

Use higher W-4 Step 2 checkbox tables

Annual credits from W-4 Step 3

Annual other income from W-4 Step 4(a)

Annual deductions from W-4 Step 4(b)

Extra federal withholding per regular check

Extra federal withholding on this bonus

Arizona withholding settings

Arizona withholding wage allocation Controls Arizona income-tax withholding only. It does not change federal, FICA, FUTA, or Arizona UI wage treatment.

Arizona Form A-4 withholding percentage Choose the percentage on the employee's current A-4. Arizona does not prescribe a separate bonus-only withholding rate.

Additional A-4 amount for this paycheck Form A-4 treats this as an extra amount per paycheck. Enter it once only when it applies to this bonus payment.

YTD Arizona UI wages before bonus Used only for the employer-side Arizona unemployment wage-base estimate.

Employee has a valid current-year 0% A-4 election

Use only when the employee certified that no Arizona income-tax liability is expected; the election must be renewed annually.

Employer cost estimate settings

Arizona UI employer rate Default uses Arizona DES' 2.0% new-employer rate. Enter the employer's assigned experience rate when known.

Arizona UI-taxable bonus percentage Use 100% for an ordinary covered cash bonus. Reduce only when a valid Arizona UI wage exclusion or localization rule applies.

Net FUTA rate Default assumes the maximum FUTA credit is available.

Estimated net bonus

Flat supplemental method with 2026 Arizona rules.

Net bonus $0.00 Tax withholding estimate updates as inputs change.

Gross bonus $0.00

Total withheld $0.00

Effective withholding 0.00%

Employer cost estimate $0.00

Withholding line	Amount

Method comparison

Method	Net bonus	Total withheld

What this calculator includes

Federal supplemental methods

Model the optional 22% flat method, the mandatory 37% rate on supplemental wages above $1 million, and the aggregate method using the 2026 Publication 15-T automated percentage tables.

Arizona Form A-4 withholding

Apply the employee's elected percentage to Arizona-taxable bonus wages, add any A-4 extra amount that applies to this paycheck, or model a valid current-year zero election.

Employer-side cost detail

Employer Social Security, Medicare, FUTA, and Arizona unemployment tax are separated from employee take-home pay.

This is a paycheck withholding estimate for a cash bonus paid to a W-2 employee. Final income tax, pretax deductions, benefit deductions, retirement deferrals, garnishments, employer-specific payroll settings, residency, exemptions, and taxable-wage treatment can change the actual paycheck.

Arizona bonus withholding FAQ

Does Arizona tax bonus pay?

Arizona law expressly includes bonuses in compensation subject to withholding when the payment is for services performed in Arizona and no exclusion applies.

Is there a special Arizona bonus tax rate?

No separate bonus-only Arizona withholding rate is published. Payroll withholding uses the employee's Form A-4 percentage of gross taxable wages.

Why is 2.5% not automatically used?

Arizona's individual income-tax rate is 2.5%, but paycheck withholding follows the employee's A-4 election. The two percentages serve different purposes.

Does Arizona unemployment tax reduce the bonus?

No. Arizona unemployment tax is an employer cost and cannot be withheld from employee wages. It appears only in the employer-cost estimate.

Research sources

Rates and formulas in this calculator are based on official 2026 source material checked on July 10, 2026.

IRS Publication 15 (Circular E), 2026

IRS Publication 15-T, 2026

Arizona Department of Revenue 2026 Arizona Form A-4

Arizona Department of Revenue Individual withholding guidance

Arizona Legislature A.R.S. Section 43-401

Arizona DES UI rate guidance

Arizona DES UI wages and $8,000 wage base

TimeTrex Payroll software

Calculate bonuses inside the full payroll workflow

One-off estimates help with planning, but payroll teams still need approved earnings, correct tax settings, direct deposit, pay stubs, and audit-ready records in the same system.

Explore TimeTrex payroll Connect time to payroll

Disclaimer: This tool provides paycheck tax withholding estimates for supplemental wages based on 2026 federal and Arizona state tax regulations, including elected Form A-4 percentages. The calculations generated by this calculator are intended solely for planning and informational purposes and do not constitute professional accounting, legal, or formal tax advice. Actual net pay and employer liabilities may fluctuate depending on individual tax brackets, total calendar-year earnings, voluntary retirement contributions, pre-tax health deductions, or specific employer payroll configurations.

Found our Free Arizona Bonus Pay Tax Calculator useful? Bookmark and share it.

Disclaimer: The content provided on this webpage is for informational purposes only and is not intended to be a substitute for professional advice. While we strive to ensure the accuracy and timeliness of the information presented here, the details may change over time or vary in different jurisdictions. Therefore, we do not guarantee the completeness, reliability, or absolute accuracy of this information. The information on this page should not be used as a basis for making legal, financial, or any other key decisions. We strongly advise consulting with a qualified professional or expert in the relevant field for specific advice, guidance, or services. By using this webpage, you acknowledge that the information is offered “as is” and that we are not liable for any errors, omissions, or inaccuracies in the content, nor for any actions taken based on the information provided. We shall not be held liable for any direct, indirect, incidental, consequential, or punitive damages arising out of your access to, use of, or reliance on any content on this page.

Trusted By

Trusted by 3.4M+ Employees: 23 Years of Service Across Startups to Fortune 500 Enterprises

Join our ever-growing community of satisfied customers today and experience the unparalleled benefits of TimeTrex.

Strength In Numbers

Join The Companies Already Benefiting From TimeTrex

Users

Companies

Years

Time To Clock-In

Start your 30-day free trial!

Experience the Ultimate Workforce Solution and Revolutionize Your Business Today

Saving businesses time and money through better workforce management since 2003.

Arizona Bonus Pay Tax Calculator