Free Massachusetts Paycheck Calculator
Published: 5 November 2026 · Updated: 5 November 2026
A single filer on $85,000 in Massachusetts keeps about $64,597.50 per year — $5,383.13 per month after 2026 federal tax, FICA and Massachusetts's flat 5% state tax. One flat rate, one small exemption, and no Boston city income tax on top. Enter your salary below.
Massachusetts is flat, fair and quietly pricey. One 5% rate on nearly all your income, a $4,400 personal exemption, and no brackets to climb — so on $85,000 you lose $4,030 to Boston, while the famous 4% millionaire's surtax only starts above $1,107,750.
Researched by MixKhazana Team · Last updated 5 November 2026 · Data: Massachusetts Dept. of Revenue 2026 rate + surtax ($1,107,750), IRS Rev. Proc. 2025-32 (tax year 2026), SSA 2026 wage base
How to use
- Enter your annual gross salary in dollars.
- Choose your filing status — single or married filing jointly.
- Pick your pay frequency — monthly, biweekly, semi-monthly or weekly.
- Click Calculate My Massachusetts Paycheck for your take-home per paycheck, month and year.
How it works
Massachusetts is the rare state where the tax math fits in one sentence: 5% of your taxable income, whatever you earn. There are no brackets to climb, no phase-ins, and — unlike New York — no city income tax waiting underneath: Boston levies no wage tax at all. Massachusetts starts from your federal adjusted gross income, subtracts a personal exemption of $4,400 per person ($8,800 for a joint return), then applies the flat 5% rate. Compare it with our Texas paycheck calculator to see what zero state tax is worth, or with Illinois — the other famous flat-tax state, at 4.95%.
The flat rate's history is short and stable: it has stood at 5% since 2020, after a series of voter-mandated reductions tied to state revenue growth. The twist arrived in 2023, when voters approved the Fair Share Amendment — the “millionaire's tax” — adding a 4% surtax on taxable income above $1 million. The threshold is indexed for inflation and reached $1,107,750 for the 2026 tax year, so income above that line is taxed at a combined 9%. The surtax is marginal, not a cliff: only the dollars above $1,107,750 pay the extra 4%, and the revenue is dedicated to public education and transportation. For about 99% of Massachusetts workers it never applies at all.
The formula is: Massachusetts tax = 5% × (salary − $4,400 single / $8,800 joint) + 4% × taxable income above $1,107,750. Federal tax uses the 2026 brackets with the $16,100 standard deduction (single), Social Security is 6.2% up to the $184,500 wage base, and Medicare is 1.45% of all wages. One quirk to know: Massachusetts also allows a deduction for FICA taxes paid (up to $2,000) and $1,000 per dependent — this calculator omits those two small items and says so plainly in the disclaimer, so the state line may run a few dozen dollars high for some filers.
Worked example
Priya, single, earns $85,000 in Boston and is paid monthly in 2026:
- Taxable income (federal): $85,000 − $16,100 = $68,900
- Federal tax: 10% × $12,400 = $1,240; 12% × $38,000 = $4,560; 22% × $18,500 = $4,070 → $9,870
- Social Security: 6.2% × $85,000 = $5,270; Medicare: 1.45% × $85,000 = $1,232.50
- Massachusetts tax: 5% × ($85,000 − $4,400) = $4,030; surtax: $0 (far below $1,107,750)
- Boston city income tax: $0
- Take-home: $64,597.50/year — $5,383.13/month, about 76.0% of gross
Try a married filing jointly return in the widget: the exemption doubles to $8,800 and the federal brackets widen, even though the Massachusetts rate never moves.
Figures used here
| Figure | 2026 value |
|---|---|
| Massachusetts flat rate | 5% (all income) |
| Personal exemption (single / MFJ) | $4,400 / $8,800 |
| Millionaire's surtax | +4% above $1,107,750 |
| Combined top marginal rate | 9% (above threshold) |
| Boston city income tax | $0 — none |
| Flat rate unchanged since | 2020 |
Frequently asked questions
How much is an $85,000 salary after tax in Massachusetts in 2026?
On an $85,000 salary in Massachusetts in 2026, a single filer keeps about $64,597.50 per year — $5,383.13 per month. Deductions are federal tax of $9,870, FICA of $6,502.50 and Massachusetts tax of $4,030. Boston adds no city income tax. Enter your own salary in the calculator above for a personal estimate.
What is the Massachusetts state income tax rate in 2026?
Massachusetts taxes wages and most other income at a flat 5% in 2026, regardless of filing status. The rate has been 5% since 2020. A separate 4% surtax applies only to taxable income above $1,107,750, so for almost all wage earners the marginal state rate is simply 5%.
What is the Massachusetts millionaire's tax surtax?
Voters approved the Fair Share Amendment in November 2022, adding a 4% surtax on taxable income above $1 million, effective 2023. The threshold is indexed for inflation and is $1,107,750 for the 2026 tax year. Only the dollars above the threshold pay the extra 4%, bringing the combined marginal rate on that slice to 9% — crossing the line does not re-tax your whole income.
What is the Massachusetts personal exemption for 2026?
The Massachusetts personal exemption is $4,400 for a single filer and $8,800 for married filing jointly in 2026, plus $1,000 per dependent. It is subtracted from income before the 5% rate applies. This calculator models the $4,400 / $8,800 exemption; dependent exemptions and the FICA deduction are noted as simplifications in the disclaimer.
Does Boston have a city income tax?
No. Like Chicago, no Massachusetts city — including Boston — levies a separate wage or earnings tax on residents. Your Massachusetts state line is the only state-level income tax on the stub, which is one reason the flat 5% is easy to compare with no-tax states.
Is Massachusetts better or worse than Texas for take-home pay?
Worse for workers: on $85,000, a Massachusetts single filer pays $4,030 in state tax that a Texan never sees, leaving about $4,030 a year less than the same salary in Texas (before cost-of-living differences). Against California or New York, though, the flat 5% looks cheap at higher incomes — and the millionaire's surtax only bites above $1,107,750.
What official sources are the 2026 Massachusetts figures based on?
The 5% flat rate and the 4% surtax above $1,107,750 come from the Massachusetts Department of Revenue's 2026 guidance (Form 1-ES and the surtax certification), the federal brackets and $16,100 standard deduction from IRS Rev. Proc. 2025-32, and the $184,500 Social Security wage base from the SSA.