StructuredSales.org
StructuredSales.org
Massachusetts looks gentle until the year gets large. Most long-term capital gain is taxed at 5%, the same rate as wages. Then a 4% surtax applies to taxable income over an indexed threshold. For 2026 that threshold is $1,107,750. A Route 128 founder, a Brookline landlord with three triple-deckers, and a Berkshire family selling a farm can all cross it in a single closing. Below it, the extra 4% does not exist.
That is the installment question in this state, and it is narrower than a sales pitch. A structured installment sale under IRC §453 does not cut the flat 5%. It can keep a year under the surtax line so the 4% never starts. Federal brackets move too. This page separates those layers. It is not a projection of your tax.
Massachusetts sorts income before it taxes it. Part C is long-term capital gain other than collectibles, taxed at 5%. Part B is most other income, including wages, also at 5%. Part A includes short-term capital gain, from assets held one year or less, taxed at 8.5%, and long-term gain on collectibles, taxed at 12% subject to a 50% deduction. The Department of Revenue's rate page states those rates and, for 2026, the additional 4% once income exceeds $1,107,750. The threshold was $1,083,150 for 2025 and $1,000,000 when the surtax began. It moves with inflation. Use the year's number, not last year's memory.
The surtax base is the sum of Part A, Part B, and Part C taxable income. A part that is negative is treated as zero. You do not net a Part C gain against a Part A loss to shrink the surtax stack. Only the income over the threshold is surtaxed, not the income below it. A long-term gain that sits entirely above the line is taxed at 5% plus 4%, or 9%, before federal tax. A long-term gain that sits entirely below the line is taxed at 5%.
Holding period is fixed at the sale. Spreading the checks does not turn an 8.5% short-term gain into a 5% long-term gain. Someone who exercised options and sold inside a year, or who flipped a Cape rental held for eleven months, still has Part A income as the payments arrive. Collectibles, including art that sometimes rides along with a Berkshire estate, stay at the 12% rate subject to the 50% deduction, and they still count toward the surtax if that part is positive.
Federal tax is a separate ladder. For 2026, joint filers pay 15% federal long-term tax until taxable income passes $613,700, then 20%. The 3.8% net investment income tax applies to the lesser of net investment income or the amount by which modified adjusted gross income exceeds $250,000 on a joint return. Those federal thresholds are not the Massachusetts surtax threshold. A year can be under one and over the other.
Massachusetts taxes nonresidents on Massachusetts-source income. Gain from real property in the Commonwealth is Massachusetts-source. Installment payments on a Boston building, a Worcester warehouse, or a Cape house held for rent generally stay taxable here as they are recognized, even if you have already moved. Gain on a partnership or LLC interest depends on what the entity owns and on how Massachusetts sources that interest. That is a statute-and-regulation question for a Massachusetts advisor, not a sentence to copy into a move memo. Our New York and Connecticut guides cover the neighbors. A person who owns property in more than one of them can owe more than one state on different assets in the same year.
The estate tax changes the "just hold it" alternative. Massachusetts taxes estates, and estates under $2 million are not subject to the tax. Above that, the Department publishes marginal rates from 0.8% to 16%. A closely held company or a small apartment portfolio can clear $2 million without looking like a taxable estate under the federal exemption. Holding for a step-up can trade capital-gains tax for Massachusetts estate tax. Read sell or hold with your estate lawyer before you treat death as a plan. The income-tax math on this page does not answer that question.
Along Route 128 and in Kendall Square, the asset is often stock or profit interests in a company the founder has held for years. That is Part C if the holding period is more than a year, and it counts in full toward the surtax. A dental group or a medical practice rolling into a larger platform is a different allocation: personal goodwill can be capital gain, equipment can be ordinary recapture in the year of sale, and the surtax looks at the sum. The dental-practice guide and the law-firm and CPA guide walk through that split. Boston triple-deckers and small multifamily buildings add depreciation. Unrecaptured §1250 gain can be reported as installment payments arrive. Ordinary recapture under §1245 cannot. See the apartment-complex guide.
Western Massachusetts farms and timber tracts do not get a special Massachusetts exclusion for being agricultural. Vermont, next door, excludes 40% of some long-held gain, with a cap. Maine, the other direction, adds a 2% surcharge at a higher income line and taxes the gain as ordinary income. A seller who owns land in two of those states should not use one state's article for the other's acreage.
The federal instrument is the same. The purchase agreement has to provide for deferred payments, and you cannot take receipt of the deferred price, before closing. In a structured sale an assignment company receives that portion and funds your schedule with an annuity from a rated insurer. Interest on the payments is ordinary income when received. If the face amount of installment obligations from the year, still outstanding at year-end, exceeds $5 million, §453A charges interest on the deferred federal tax. Related-party resales within two years are governed by §453(e). The §453 explainer is the longer version of those rules.
A married couple lives in Massachusetts. Part B taxable income from other sources is $200,000. They sell long-held stock in an instrumentation company. Part C long-term gain is $2,500,000. They compare recognizing it in the year of sale with ten annual slices of $250,000. No Part A income, no collectibles, no recapture. The open installment balance stays under $5 million. Interest on the payments is ignored. Federal tax uses 2026 joint long-term brackets and the 3.8% net investment income tax, treating modified adjusted gross income as $200,000 plus the gain recognized that year. The 2026 surtax threshold is $1,107,750. This estimates tax on the gain. It is not a return.
| Lump sum | Ten installments | |
|---|---|---|
| Combined Part B and Part C income | $2,700,000 once | $450,000 a year |
| Massachusetts tax on the gain at 5% | $125,000 | $125,000 |
| Massachusetts 4% surtax on the gain | $63,690 | $0 |
| Federal long-term capital gain tax | $479,315 | $375,000 |
| Federal 3.8% net investment income tax | $93,100 | $76,000 |
| Combined tax on the gain | $761,105 | $576,000 |
The 5% Massachusetts tax on the $2.5 million gain is $125,000 either way. The entire state difference is the surtax: 4% of the amount by which $2,700,000 exceeds $1,107,750, which is $63,690. Each installment year totals $450,000, under the threshold, so the 4% is zero. Federal tax falls because each year stays inside the 15% long-term band, and the net investment income tax base is smaller. The combined illustration is about $185,000 lower. Add a large bonus, a second property, or a short-term tranche and a year can cross $1,107,750 anyway. The calculator will not know your Parts. Your CPA will.
The 5% does not shrink when you spread a long-term gain. Only the 4% surtax, and the federal layers, move in this example. Figures are estimates, not a promise of savings.
Write down the holding period, the other Part B income you cannot turn off, and whether any of the price is short-term or is collectibles. Then see whether a schedule keeps each year under that year's surtax threshold, not under a round $1 million. If the buyer is a related company taking depreciable assets, §453(g) may block installment treatment on those assets. If you are comparing a sale with holding until death, put the $2 million estate-tax line on the same page. The installment language has to be in the contract before you are paid.
Most long-term capital gain is Part C income, taxed at 5%. Short-term gain, from assets held one year or less, is Part A income taxed at 8.5%. Long-term gain on collectibles is taxed at 12%, subject to a 50% deduction. The 4% surtax is added, for 2026, to the part of taxable income over $1,107,750. Above that line a long-term gain is effectively taxed at 9% before the federal tax.
The 5% rate is flat, so spreading a long-term gain does not cut that piece. What it can cut is the 4% surtax. The surtax applies only to the sum of Part A, Part B, and Part C income above the year's threshold, and a negative part is treated as zero. If each year's combined taxable income stays at or under $1,107,750 for 2026, the 4% does not start. The 5% still applies to the gain.
No. The holding period is fixed when you sell. An asset held one year or less produces 8.5% Massachusetts tax on the gain as it is recognized, plus the surtax if you are over the threshold. An installment schedule does not re-age the asset.
Nonresidents are taxed on Massachusetts-source income. Gain from real property in Massachusetts is Massachusetts-source, and installment payments on that sale are generally taxed as they are recognized. A move does not, by itself, end that tax. Gain on an interest in an entity is more fact-specific. Have a Massachusetts advisor source it. Do not treat a change of address as a plan.
Massachusetts imposes its own estate tax. Estates under $2 million are not subject to it. Larger estates face the marginal rates the Department of Revenue publishes, from 0.8% to 16%. Holding a highly appreciated business or building until death can trade income tax for estate tax. That comparison belongs with your estate lawyer. It is not answered by the income-tax math alone.
Last reviewed: October 22, 2026.
Answer 6 questions and get a personalized structured installment sale estimate — free, no obligation.
Take the Free Assessment →