Yes. Massachusetts treats bonuses as taxable wages and generally requires Massachusetts income tax withholding on bonus and other supplemental wage payments. Massachusetts wage withholding is generally based on a 5.0% rate, and the Department of Revenue’s 2026 withholding guidance also addresses the 4% surtax that can apply when taxable income exceeds the annual surtax threshold.
When a bonus is paid, Massachusetts withholding may be handled differently depending on how the bonus is processed. For supplemental wages, Massachusetts guidance indicates that if the employee’s wages plus supplemental wages do not exceed the 2026 surtax threshold, withholding is generally 5%. If the payment causes wages to exceed that threshold, the applicable portion may be subject to withholding at 9%, reflecting the 5% income tax plus the 4% surtax. You can use the calculator above, powered by Beyond HCM, to estimate Massachusetts withholding and take-home pay for bonus payments. The calculator uses a 2026 estimate based on current Massachusetts withholding guidance and payroll assumptions.
How to Calculate Bonus Tax in Massachusetts
Supplemental wages, including bonuses, commissions, overtime pay, back pay, and certain additional wage payments, are generally treated as wages for withholding purposes. Massachusetts employers typically use the guidance in Circular M to estimate withholding on these payments.
For Massachusetts withholding:
– Paid separately from regular wages: withholding is generally estimated at 5.0%, unless the payment is expected to fall above the 2026 surtax threshold, in which case the applicable portion may be estimated at 9.0%
– Paid together with regular wages: withholding may be calculated on the total combined wages for the payroll period using the applicable Massachusetts withholding tables and payroll setup
– Actual withholding may vary depending on payroll setup, employee elections, and Form M-4 details
For federal withholding:
– 22% applies to most supplemental wages
– 37% applies to supplemental wages above $1 million in a calendar year
Key Information on Massachusetts Bonuses
How Are Bonuses Paid in Massachusetts?
Employers may issue bonuses through:
– Check
– Direct deposit
– Pay card
How Do Bonuses Work?
Bonuses are treated as taxable compensation. They are generally subject to:
– Federal income tax withholding
– Massachusetts income tax withholding
– Social Security tax
– Medicare tax
They are typically reported on the employee’s Form W-2 at year-end.
What Is the Massachusetts Bonus Tax Rate?
Massachusetts does not use a separate flat “bonus tax” that is completely disconnected from its wage withholding rules. In 2026, wage withholding is generally 5.0%, but a 4% surtax applies to taxable income above the annual surtax threshold, so some supplemental wage payments may effectively be withheld at 9.0% on the applicable portion. The 2026 surtax threshold is $1,107,750.
Because of that surtax structure, the effective withholding rate on a bonus may vary depending on the employee’s year-to-date wages, the amount of the bonus, and how the employer processes the payment.
Are Bonuses Taxed Differently Than Standard Pay?
At the Massachusetts level, bonuses are treated as taxable wages, but withholding may be calculated differently depending on how the bonus is processed and whether the payment falls below or above the surtax threshold. For supplemental wage payments, Massachusetts guidance may result in withholding at 5.0% or 9.0% on the applicable portion rather than a single special statewide bonus rate.
At the federal level, bonuses may be taxed using the supplemental wage method, typically 22% when paid separately, subject to the higher $1 million rule.
How Much Tax Is Taken Out of a Bonus?
For most bonus payments in Massachusetts, estimated withholding may include:
– Massachusetts income tax withholding
– 22% federal supplemental withholding in most cases
– FICA taxes, including Social Security and Medicare
Because Massachusetts withholding can be affected by the 2026 surtax threshold and the employee’s year-to-date wages, the exact amount taken from a bonus may vary from one employee to another.
Important
This calculator is provided for informational and estimation purposes only. Actual payroll tax withholdings may vary based on an employee’s tax elections, Form M-4 details, payroll setup, and year-to-date wages. Employers should consult a qualified tax, legal, or payroll professional for official calculations.
If you need help with payroll processing, withholding setup, or tax compliance in Massachusetts, the Beyond HCM team is available to help.
Estimate only — not legal or tax advice. Need help managing Massachusetts payroll more confidently? Contact Beyond HCM for support.
