Selling a rental on an installment sale after cost segregation: the recapture is due in year one

No — an installment sale does not spread out your depreciation recapture. Under Section 453(i), every dollar of recapture income is recognized in the year of the sale, in full, whether or not you have been paid. Only the remaining capital gain gets spread across the payments. After a cost segregation study that is a sharp distinction, because the study is specifically what turns a large slice of your basis into the kind of gain that recaptures as ordinary income. Sellers who learn this at tax time rather than at the closing table are the ones who end up owing more tax than their down payment covered.

What counts as recapture income on a seller-financed sale?

Two buckets accelerate into the year of sale:

• Section 1245 recapture on the 5- and 7-year personal property a study carves out — appliances, carpet, cabinetry, specialty electrical, decorative lighting, furnishings in a furnished rental. Because bonus depreciation typically drives the adjusted basis of these items to zero, essentially the entire allocated sale value comes back as ordinary income.

• Excess Section 1250 recapture on 15-year land improvements — driveways, walkways, fencing, site utilities, landscaping. Here the ordinary-income piece is the depreciation you actually took in excess of what straight-line would have produced, which after 100% bonus depreciation is most of it.

What does not accelerate is the building. Depreciation on the 27.5-year structure comes back as unrecaptured Section 1250 gain at a maximum 25% federal rate, and that piece genuinely rides along with the installments — though it is taken first as payments arrive, before any lower-taxed capital gain.

A worked example: a $585,000 rental sold on a seller-financed note

Take a $585,000 single-family rental acquired in March 2026 with land at about 18% of the price, leaving roughly $479,700 of depreciable basis. A documented study reclassifies about 24% of that — roughly $115,000 — split into about $72,000 of 5- and 7-year personal property and about $43,000 of 15-year land improvements. With 100% bonus depreciation available for property acquired (contract signed) after January 19, 2025, the whole $115,000 is deductible in year one.

At a 32% marginal federal rate, that is about $36,800 of tax saved in the first year — the reason to do the study, and real money.

Now sell in 2029 for $660,000 on a seven-year seller-financed note with 10% down. The closing produces $66,000 of cash, less roughly $46,200 in commissions and costs, so about $19,800 lands in your pocket. The recapture does not care:

• The $72,000 of personal property sits at a zero adjusted basis, so roughly $72,000 of Section 1245 ordinary income is recognized in 2029.

• The land improvements would have produced about $8,600 of straight-line depreciation over three years against the $43,000 actually deducted, so about $34,400 of excess Section 1250 recapture is also ordinary income in 2029.

That is $106,400 of recapture income in the year of sale. At 32% the federal bill is about $34,000 — roughly $14,000 more than the net cash the closing produced, before state tax. The remaining gain, including about $39,800 of unrecaptured Section 1250 gain on the building, spreads across the note. The ordinary piece does not.

How do sellers avoid owing tax on money they have not collected?

Three structures come up, and all of them have to be decided before the purchase agreement is signed:

Size the down payment to the recapture, not to the buyer's comfort. This is the simplest fix and the one most often missed. If the study put $106,000 of recapture on the table, a 10% down payment is too small; a down payment that covers closing costs plus the recapture tax keeps the first year neutral. Your CPA can compute that number from the depreciation schedule in the study report before you negotiate.

Allocate the sale price in the contract. Section 1245 recapture is capped at the gain realized on each asset, computed asset by asset. A purchase agreement that credibly allocates value to the personal property, supported by condition and age rather than by what is convenient, is the difference between a defensible number and whatever the IRS would impute. A ten-year-old refrigerator is not worth its original cost, and the allocation schedule in a cost segregation report is the natural starting point for that conversation.

Consider electing out of installment treatment. If the capital gain is modest relative to the recapture, or if 2029 happens to be a low-income year, recognizing the whole gain at once can beat paying ordinary rates in year one and capital rates later. That is a projection question, not a rule of thumb.

Does this mean cost segregation is a mistake if you might seller-finance?

No. It means the exit needs planning, which is true of any accelerated depreciation. The study still produced $36,800 of cash in 2026 that compounded for three years, and the recapture tax would have been owed on a cash sale too — the installment structure changes the timing mismatch, not the total. What makes seller financing uniquely awkward is that it is the one exit where the tax arrives years ahead of the money.

The practical rule: if seller financing is even a possibility on a property, say so when the study is scoped, keep the component schedule where your CPA can find it, and revisit the down-payment math before the purchase agreement is final. Our walk-through of how recapture works on an ordinary sale covers the cash-sale baseline, and the savings calculator on our homepage will put a first-year number on your own property in about a minute.

One documentation note, because recapture is where allocations get tested: the basis schedule is the first thing a reviewer pulls on a sale year, and a thin allocation is far more expensive to defend after the fact than to build correctly. Every study we deliver is built to be audit-ready and reviewed by a qualified licensed tax professional.