Boston income tax calculator

Boston has no city income tax

There is no Boston income tax. Your rate here is Massachusetts's, the same as anywhere else in the state — graduated rates up to 9.00%. That surprises people in big cities, who assume somewhere this size must take its own cut.

On a $85,000 salary a single filer pays about $9,870 federal, $6,503 FICA and $4,030 to Massachusetts — roughly $20,403 in total.

Only fifteen states let any of their cities levy an income tax, and Massachusetts is not one of them.

The money comes from property tax instead, and here that bites: the median Massachusetts county charges 1.11% against a national median of 0.84%. What the payslip saves, the mortgage statement partly takes back. Boston sits in Suffolk County, where the rate is 0.67% — 3rd cheapest of the 14 Massachusetts counties with published data, and that puts it among the cheapest quarter of Massachusetts counties — a fact that rarely survives the reputation of a big city. The median home there is worth $680,700 and carries a bill of $4,533, which is 4.9% of the median household income. That is the number to weigh against the payslip, because it does not move with what you earn. Massachusetts taxes the full market value with no fraction applied, so its rate means what it says — unlike states that tax a quarter or a third of value and end up cheaper than they look. Massachusetts limits what the taxing districts may collect in total rather than what your house is assessed at — so a home appreciating faster than its neighbours still sees its bill rise.

How Boston compares

Most American cities do not levy an income tax — only fifteen states permit it, and even in those, it is the exception rather than the rule. Where it exists it is heavy: Philadelphia charges 3.74% on top of Pennsylvania, and New York City's own schedule reaches 3.876%.

The comparison people actually want is total burden, and that needs all three layers. Federal tax is identical everywhere. What varies is the state, the city, and — outside the payslip — property tax, which is set by your county and swings more than either.

The same $85,000 salary in 30 US cities

Boston comes 21st cheapest of the 30 cities on this site for total income tax on $85,000: about $20,403 between federal, state and local, leaving $64,598.

The spread is wider than most people expect. Seattle takes $16,373 and New York City takes $23,225 — a difference of $6,853 a year on identical pay, before anyone has looked at what a house costs in either place.

The next city up from Boston is Chicago at $20,435, and the one just below is St. Louis at $20,280. Federal tax and FICA are identical in all of them; every dollar of difference is state and local.

What five different salaries actually cost in Boston

The single most useful thing to see is how the total moves with income, because it does not move in a straight line. Here is the same calculation at five salaries, single filer, standard deduction:

$45,000 → $8,693 in tax (19.32%), leaving $36,308. $65,000 → $13,623 in tax (20.96%), leaving $51,378. $85,000 → $20,403 in tax (24.00%), leaving $64,598. $120,000 → $32,530 in tax (27.11%), leaving $87,470. $185,000 → $56,286 in tax (30.42%), leaving $128,715.

Between $45,000 and $185,000 the total rate rises by 11.1 points — from 19.32% to 30.42%. That is a smaller jump than most people expect from a salary that has more than quadrupled, and the reason is structural: federal brackets are marginal, so a raise never re-taxes what you already earned, and Social Security stops entirely above $184,500.

Look at the FICA line specifically. At $45,000 it is $3,443, which is 7.65% of gross — more than the $3,220 of federal income tax at that level. At $185,000 it is $14,122, or 7.63%. FICA is the tax that weighs most on modest incomes and least on large ones, and it is the one nobody talks about.

Your marginal rate is not what you pay

On $85,000 in Boston the federal marginal rate is 22.00% — that is what the next dollar costs. What the whole salary actually cost in federal income tax is 11.61%, or $9,870. The gap between those two numbers is the single most misunderstood thing in US tax.

The reason is that brackets are marginal, not cliffs. Only the slice of income inside a bracket is taxed at that bracket's rate. The first $16,100 is not taxed at all, the next slice at 10.00%, and so on up. A pay rise that "pushes you into a higher bracket" never reduces your take-home — that fear is the practical cost of the confusion.

Massachusetts works the same way, with 2 brackets running from 5.00% to 9.00%. On this salary the state marginal rate is 5.00% and the state effective rate is 4.74%.

And there is a third rate that matters more than either: 24.00%, which is everything — federal, FICA, Massachusetts — as a share of gross. That is what actually left your pay. Never compare it against a marginal rate; they measure different things and the comparison suggests an error that is not there.

Where each dollar of $85,000 actually goes

The standard deduction of $16,100 comes off first, so federal income tax is charged on $68,900 rather than on the full salary. That remainder is then sliced across the brackets: 10.00% on $12,400 costs $1,240; 12.00% on $38,000 costs $4,560; 22.00% on $18,500 costs $4,070.

The top bracket reached is 22.00%, and it applies to $18,500 — the last slice, not the whole salary. Add the slices together and federal income tax is $9,870, an effective rate of 11.61% against a top bracket of 22.00%.

Massachusetts runs its own 2 brackets, from 5.00% to 9.00%. On this salary the top state bracket reached is 5.00%, and the state bill comes to $4,030 — an effective state rate of 4.74%. Notice how much lower that is than the top bracket: state brackets are marginal too, and in several states the top rate arrives at an income so low that almost everyone is technically "in" it.

Underneath both sits FICA, which follows none of these rules. Social Security takes 6.20% of every dollar up to $184,500 with no deduction and no bracket, and Medicare takes 1.45% of everything with no ceiling at all. Together that is $6,503 on this salary — less than the federal income tax above it.

What your next $10,000 is actually worth here

Going from $85,000 to $95,000 in Boston raises your tax by $3,465, so you keep $6,535 of the $10,000 — an effective rate on the raise of 34.65%. That is the number worth having in a salary negotiation, and it is not the same as either your bracket or your average rate.

Notice that it is higher than your overall effective rate of 24.00%. New income is always taxed at the top, so the marginal cost of a raise exceeds the average cost of everything you already earn. That is the whole point of a progressive system, and it is also why a bonus feels more heavily taxed than a salary — it is stacked on top.

Bonuses have a wrinkle of their own. Employers often withhold them at a flat supplemental rate rather than at your actual marginal rate, which can take more or less than you owe. It comes out right at filing either way, but it explains why a bonus payslip so often looks wrong.

With no local income tax in Boston, the cost of the raise is entirely federal, FICA and Massachusetts.

Single or married: what changes in Boston

On the same $85,000, a single filer here pays $20,403 and a married couple filing jointly on that one income pays $16,373 — a difference of $4,030 a year for a change of status, not of earnings. The mechanism is that joint filing roughly doubles the deduction and widens the brackets, so a single income supporting two people is taxed as if it were spread across both.

The picture reverses when both partners earn. A couple on $170,000 between them pays $41,025, against $40,805 for two single filers on $85,000 each — about $220 more. Whether marriage helps or costs depends almost entirely on how evenly the two incomes are split.

We have not yet confirmed how Massachusetts treats joint brackets, so the state figure for couples on this page is an approximation and the page says so wherever it appears.

Married filing separately is almost never better on tax alone; it exists mainly for situations where one spouse does not want joint liability for the other's return. If you are weighing it, the deciding factor is usually legal rather than arithmetic.

What $10,000 into a 401(k) is worth in Boston

A traditional 401(k) contribution comes out before income tax, so it reduces what is taxed. On $85,000 here, putting $10,000 in cuts the total tax bill from $20,403 to $16,938 — a saving of $3,465, or 34.65% of the amount contributed.

That figure is lower than the marginal rate people expect, and the reason is FICA. Social Security and Medicare are charged on gross pay before any 401(k) deduction, so the contribution saves income tax but not the 7.65% of payroll tax — about $765 on this contribution. An HSA taken through payroll is the exception: it avoids FICA as well, which makes it the most tax-efficient dollar available to most employees.

$3,465 of the saving is federal and the rest comes from Massachusetts, which is why the same contribution is worth more here than it would be in a state with no income tax.

The mirror image matters too. Because the deduction saves tax at your top rate, its value rises with income: the same $10,000 is worth considerably more to someone at $185,000 than at $45,000, which is an argument for contributing more in high-earning years and less in lean ones.

The tax nobody quotes: what a home costs to hold in Suffolk County

Income tax is the number people compare between cities, and it is usually the smaller of the two. In Suffolk County the median home is worth $680,700 and carries a property tax bill of $4,533 a year — an effective rate of 0.67%, which is 4.9% of the median household income there.

Set that against the income side. A single filer on $85,000 in Boston pays $20,403 in income and payroll tax combined. The property bill on a median home adds $4,533 on top — a smaller but persistent addition — and unlike income tax it does not fall when your earnings do.

That last point is the one that catches retirees and anyone whose income drops. Income tax follows what you earn; property tax follows what you own, and it keeps arriving. It is the reason a state with no income tax is not automatically the cheaper place to live, and the reason almost every state has built some form of relief for older owners.

Massachusetts restrains how fast it can grow: proposition 2½ works on the town, not the house: a municipality’s total levy cannot exceed 2.

Retirement income in Massachusetts

The rules that apply to a salary are not the rules that apply to a pension, and the gap between states is far wider in retirement than in work.

Massachusetts does not tax Social Security. It is one of 42 states plus the District that exempt benefits entirely — only eight still reach them in 2026.

What matters in Massachusetts is not how much retirement income you have but where it came from.

Massachusetts exempts contributory public pensions in full — the Commonwealth’s own plans, its cities and towns, and contributory federal plans. Pensions from ANOTHER state qualify only on reciprocity: you can deduct them if that state does not tax pensions paid to its residents from Massachusetts. Private pensions, 401(k)s and IRAs get no exemption at all.

We have not yet confirmed how Massachusetts treats military retirement pay. Thirty-seven states exempt it, so the odds are it is exempt here too, but we would rather say we have not checked than guess on your behalf.

The calculator above does not apply any of this — it models salary income with the standard deduction. If a meaningful share of your income is retirement income, treat that figure as an upper bound.

Five ways this calculation goes wrong

Adding FICA to the withholding. Boxes 4 and 6 of your W-2 are Social Security and Medicare. They are not advance payments of income tax and never come back as a refund. Only box 2 (federal) and box 17 (state) belong in a refund calculation, and including the others overstates it by thousands.

Comparing the effective rate against the marginal rate. Here that would mean setting 24.00% against 22.00% and concluding something has gone wrong. Nothing has: the first includes payroll and state tax, the second is federal income tax on the next dollar. They measure different things.

Assuming a flat state is flat from the first dollar. Ohio taxes nothing below $27,350 of taxable income and Mississippi nothing below $10,000, yet both are widely published as simple flat rates. That single omission overstated Ohio's bill by 43% in the sources we checked.

Assuming your city takes a cut. Boston does not levy an income tax, and only fifteen states permit any city to. Budgeting for one that does not exist is the mirror of the previous mistake.

Using last year's figures. Bracket thresholds, the standard deduction and several state rates are indexed and move every January. Worse, states backdate: Georgia cut its rate in May 2026 with effect from 1 January, so a table published in April was correct when written and wrong by summer. That is why every figure on this site carries the date it was checked.

Deadlines and what you actually have to file in Boston

Federal returns for 2026 are due on 15 April 2027. An extension gives you until 15 October to FILE, but not to PAY — anything owed still accrues interest from April, which is the part people misread. If you expect to owe more than $1,000 beyond withholding, the IRS expects quarterly estimated payments rather than a single settlement.

Massachusetts generally follows the federal calendar, and most states accept the federal extension automatically rather than requiring their own form. Check before assuming: a handful require a separate request, and the penalty for getting it wrong is charged on a bill you may not know you have.

With no local income tax there is no third return to worry about, which is worth something on its own: in states like Ohio and Pennsylvania a working household can face three separate filings a year.

Whatever your situation, the figures on this page are for planning. They assume a salaried filer taking the standard deduction, and they do not model itemised deductions, self-employment income, capital gains, or credits such as the EITC that can change the answer substantially.

Boston tax questions

Does Boston have a city income tax?

No. Boston does not levy an income tax — Massachusetts does not allow its cities to. You pay the state rate, the same as everywhere else in Massachusetts.

How much tax will I pay on $85,000 in Boston?

About $20,403 as a single filer taking the standard deduction: $9,870 federal income tax, $6,503 in Social Security and Medicare, $4,030 to Massachusetts. That leaves roughly $64,598.

Is the Boston rate different if I work there but live elsewhere?

Not for city income tax, since Boston does not levy one. If you live in one state and work in another, the state rules on residency and reciprocity are what matter.

Nearby

The Massachusetts income tax page covers the state rules that apply wherever you live in Massachusetts. For what a home costs to hold rather than what a salary costs to earn, the Massachusetts property tax estimator goes county by county.