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Itemize or take the standard deduction? The 2025 math for Massachusetts homeowners

Add up your property tax, Massachusetts income tax, mortgage interest and charitable gifts; if the total beats the 2025 standard deduction of $15,750 single, $31,500 married filing jointly or $23,625 head of household, itemize. With the state and local tax cap now $40,000 for 2025, many Massachusetts homeowners with a mortgage will find that itemizing is worth it again. The choice affects only the federal return.

The numbers you compare against

The tips, overtime, car loan and senior deductions for 2025 to 2028 are available either way, so they do not affect this choice.

Federal standard deduction (verified 28 Sep 2026)
Filing status20252026
Single or married filing separately$15,750$16,100
Married filing jointly$31,500$32,200
Head of household$23,625$24,150

What goes on Schedule A

  • State and local taxes: property tax plus Massachusetts income tax paid during the year, up to $40,000 for 2025 ($40,400 for 2026), reduced above $500,000 of MAGI ($505,000 for 2026)
  • Mortgage interest on your home, from Form 1098
  • Charitable gifts (from 2026, only the part above 0.5% of AGI)
  • Medical expenses above the threshold, for households with large bills

A Massachusetts worked example

Massachusetts homeowners have two large state and local taxes: property tax and a 5% income tax on most income. Under the old $10,000 cap, those alone used up the allowance. Under the higher cap, they can both count.

Illustrative 2025 comparison: married couple in Easton, $220,000 income
ItemUnder old $10,000 capUnder 2025 $40,000 cap
Property tax$9,000$9,000
Massachusetts income tax paid$10,000$10,000
SALT allowed$10,000$19,000
Mortgage interest$13,000$13,000
Charitable gifts$2,000$2,000
Total itemized$25,000$34,000
Standard deduction (joint)$31,500$31,500
Better choiceStandard deductionItemize, by $2,500

Illustrative figures only. The saving is the extra $2,500 of deduction multiplied by the couple's federal bracket, 24% at this income in 2025, or about $600.

Massachusetts: there is no choice to make

The Form 1 does not use the standard deduction or Schedule A. DOR says Massachusetts does not allow the federal standard deduction and does not allow federal Schedule A deductions; you claim only the deductions specified on the Massachusetts forms. That means your Form 1 is the same whether you itemize federally or not.

Massachusetts instead uses personal exemptions ($4,400 single, $6,800 head of household, $8,800 joint for 2025) and its own deductions, such as the rent deduction and the 529 contribution deduction.

Deductions on each return
FederalMassachusetts
Standard deduction$15,750 / $31,500 / $23,625 (2025)None
Itemized deductionsSchedule A, SALT capped at $40,000Not allowed
Property taxItemized, within the SALT capNot deductible; may count toward the senior circuit breaker
Personal exemptionsNone$4,400 / $6,800 / $8,800

When the standard deduction still wins

  • No mortgage, or a small remaining balance
  • Modest property tax and income
  • Single filers, whose state and local taxes may already fall below $15,750
  • Very high incomes where the SALT cap phases back down toward $10,000

How to run the comparison yourself

  1. 1.Find the property tax you paid during the year, from your town's bills or your mortgage escrow statement.
  2. 2.Find the Massachusetts income tax you paid during the year: withholding on your W-2s plus any estimated payments and any balance paid with last year's return.
  3. 3.Add the two and apply the cap: $40,000 for 2025, reduced if MAGI is over $500,000.
  4. 4.Add mortgage interest from Form 1098 and your charitable gifts.
  5. 5.Compare the total with your standard deduction. If it is higher, itemize.

What changes for 2026

The 2026 comparison has more moving parts. The SALT cap rises to $40,400 and the standard deduction to $32,200 for joint filers. Itemizers can deduct charitable gifts only above 0.5% of AGI, while non-itemizers gain a new deduction of up to $1,000 ($2,000 joint) for cash gifts, which slightly favors the standard deduction for households close to the line. Top-bracket taxpayers also face a new 5.4% reduction in itemized deductions.

Households near the break-even point can sometimes come out ahead by bunching deductible payments, such as charitable gifts, into alternate years. Whether that works depends on your numbers and should be decided before December.

Where we come in

We compare the two on every federal return we prepare, and for 2026 we also account for the new charitable floor and, for top-bracket households, the new overall itemized limit. Before we start, we give you a scope and a price in writing.

Figures on this page were checked against the IRS and Massachusetts sources listed alongside on 28 Sep 2026. They change — confirm the current amount before relying on one.

General information for owner-led businesses, not advice for your specific situation. Tax and accounting rules change, and how they apply depends on facts particular to your business. Talk to us — or to another qualified professional — before acting on anything here.

Common questions

Quick answers

Should I itemize in 2025 if I own a home in Massachusetts?
Quite possibly. With the SALT cap at $40,000 for 2025, your property tax and Massachusetts income tax can both count in full for most incomes under $500,000. Add mortgage interest and charitable gifts, and compare with the standard deduction: $15,750 single, $31,500 married filing jointly or $23,625 head of household.
Does itemizing federally change my Massachusetts return?
No. Massachusetts does not allow the federal standard deduction or federal itemized deductions. It uses personal exemptions ($4,400 single, $6,800 head of household, $8,800 joint) and its own deductions, such as rent and 529 contributions, so your Form 1 is the same whichever you choose federally.
Can I deduct my Massachusetts income tax on my federal return?
Yes, if you itemize. Massachusetts income tax paid during the year, together with property tax, is a state and local tax deduction on Schedule A, subject to the cap of $40,000 for 2025 and $40,400 for 2026, reduced at higher incomes.
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