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This guide is general information, not tax advice. Tax rules change — consult a qualified tax professional about your situation.
The short answer
After closing on a Massachusetts home, your tax to-do list has two layers: federal (mortgage interest and points deductions, all under IRS rules in Publication 936) and Massachusetts (where your state return starts from federal AGI but does not simply copy federal itemized deductions — MA has its own modifications and credit structure). The highest-value move in year one: file away your Closing Disclosure, track every point and dollar of prepaid interest, and note the dates and amounts of your first property tax bills. And one MA-specific note worth knowing: the state offers a senior circuit-breaker tax credit for qualifying older homeowners — check mass.gov and a MA tax professional for current eligibility.
Federal items: what to capture in year one
These are the federal records a new MA homeowner should have organized before the first tax filing:
- Closing Disclosure (the final one). Keep it permanently. It shows points paid, origination charges, prepaid interest, and other settlement costs — the source document for points deductions and for adjusting your home's cost basis later (IRS Publication 523).
- Points and how they were paid. Points on a purchase mortgage may be fully deductible in the year paid if you meet all eight IRS conditions (IRS Topic 504) — including that the loan is secured by your main home, the points were computed as a percentage of the loan, and you paid them with your own funds. Points on a refinance are amortized over the loan's life. Details: Are Mortgage Points Tax Deductible After Refinancing?
- Form 1098. Your servicer sends this showing mortgage interest paid. Watch for: refinance points generally aren't in Box 6 (you enter them on Schedule A, line 8c yourself), and prepaid interest from closing day is your responsibility to capture.
- Property tax bills and proof of payment. Massachusetts real estate taxes are typically billed quarterly by the city or town. Real estate taxes are deductible on Schedule A within the SALT cap — keep the bills and cancelled checks/receipts, and note which tax year each payment falls in (a payment made in January counts for the year paid, not the year billed).
- Mortgage insurance (PMI/MIP). The federal deduction for mortgage insurance premiums expired after 2021 and has been extended retroactively by Congress in the past. As of October 2026, do not assume it is available — check current IRS guidance for the tax year in question.
- Home-improvement records from day one. Receipts, contractor invoices, permits, before/after photos. Improvements (not repairs) adjust your cost basis and reduce taxable gain at resale — and if you later take out a HELOC, you'll need proof the funds went to buy, build, or substantially improve the home. See HELOC Interest Deduction: What Records Should You Keep?
The Massachusetts layer: what works differently
This is where new MA homeowners get tripped up. Key points, kept deliberately general — confirm specifics with mass.gov or a Massachusetts tax professional:
- MA starts with federal AGI, then applies state modifications. Your Massachusetts return begins from your federal adjusted gross income — but that doesn't mean MA adopts every federal deduction. The state has its own code section, its own modifications, and its own credit structure.
- MA does not simply copy federal itemized deductions. Don't assume a federal Schedule A deduction automatically flows through to your state return. Each MA item needs to be evaluated under MA rules.
- Property tax timing matters the same way. Real estate taxes are deductible federally when paid, within the SALT limit — so the date on your check or transfer matters more than the date on the bill.
- Keep MA correspondence. Your first full year in a new MA home will generate new state-level paperwork (motor vehicle excise, local assessments). File it with your tax records.
- The senior circuit-breaker credit exists. Massachusetts offers a refundable "circuit breaker" tax credit for qualifying homeowners age 65 and older whose property taxes (plus half of water/sewer costs) exceed a threshold share of their income — claimed on Schedule CB. Eligibility rules, income limits, and credit amounts change, so check mass.gov for the current tax year rather than relying on any fixed numbers.
Your closing-week checklist
| Task | Why |
|---|---|
| Download and save the final Closing Disclosure | Source document for points, fees, and basis |
| Confirm points are labeled as points, computed as % of loan | Required for year-one deductibility tests |
| Note who paid what (buyer vs. seller credits) | Seller-paid points have their own basis rules |
| Record the closing date and first payment date | Determines prepaid interest days and your first deduction year |
| Photograph/record the property tax bills and payment schedule | Quarterly MA billing; payment year = deduction year |
| Set up a folder for improvement receipts | Basis adjustments + future HELOC/renovation deductions |
| Ask your lender whether any "origination" charge is prepaid interest | Service fees vs. deductible points — get it in writing |
| Review with a tax professional before your first filing | First-year filings set up multi-year amortization schedules |
Common mistakes
- Assuming MA mirrors the federal return. It doesn't. Federal AGI is the starting point, but MA modifications, deductions, and credits follow state law — verify each item rather than carrying Schedule A over wholesale.
- Deducting property taxes in the wrong year. MA cities bill quarterly; the deduction follows the payment date, not the billing period. A January payment for last year's Q3 bill is this year's deduction.
- Losing the Closing Disclosure. You'll need it years from now for basis calculations at resale. Store a digital copy somewhere durable.
- Treating all closing costs as deductible. Appraisal, title, credit report, and service-fee origination charges are generally not deductible as interest — see Which Loan Estimate Fees May Matter at Tax Time?
- Forgetting seller-paid points. If the seller paid points on your loan, the buyer generally reduces the home's basis by that amount — a detail that matters at resale, not just at filing.
- Assuming the PMI deduction is active. It isn't guaranteed year to year. Check current IRS guidance for the tax year you're filing.
Methodology and limitations
Federal tax rules follow IRS Topic 504 and Publications 936 and 523 as of October 2026. Massachusetts-specific statements are intentionally general: MA tax law has its own modifications, credits, and filing rules that change by tax year — verify current details at mass.gov or with a Massachusetts tax professional. Credit amounts, income limits, and eligibility thresholds are not stated here precisely because they change; always use the current year's official guidance.
Reviewed by the LoanMate.ai editorial team.
Primary sources
- IRS Topic 504, Home Mortgage Points (irs.gov)
- IRS Publication 936, Home Mortgage Interest Deduction (irs.gov)
- IRS Publication 523, Selling Your Home (irs.gov)
- Massachusetts Department of Revenue (mass.gov) — for current state credits and forms
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