Installment Sale for Real Estate Investors (2026)
Selling a rental property in one year can push a six-figure gain into the highest brackets all at once. An installment sale — also called seller financing — lets you spread that gain over multiple years, recognizing income as you receive principal payments instead of all at once. Here's exactly how the math works, what you can and can't defer, and when this strategy makes more sense than a 1031 exchange.
What is an installment sale?
An installment sale, governed by IRC § 453, is any sale where you receive at least one payment after the tax year in which the sale closes.1 In practice for real estate, it usually means you act as the lender — you accept a down payment, carry a promissory note secured by a deed of trust, and collect principal plus interest from the buyer over a set term.
Unlike a 1031 exchange, there's no replacement property to find, no 45-day identification deadline, and no 180-day closing window. You agree on payment terms with the buyer, record the security instrument, and report income as payments arrive each year.
How the tax math works: the gross profit ratio
Under the installment method, you don't owe tax on the entire gain when you close. Instead, you calculate a gross profit ratio — the fraction of each principal payment that represents taxable gain:
Each year: (Principal Received That Year) × Gross Profit Ratio = Gain Recognized That Year
Interest income is reported separately — it's taxed at ordinary income rates regardless of installment treatment.
Total gain = sale price − adjusted basis (purchase price + capitalized improvements − all accumulated depreciation).
Sale price (contract price) = the full amount the buyer agreed to pay, including the face value of the seller note — not just the down payment you received at closing.
The rule that catches real estate investors: IRC §453(i)
The installment method has a critical exception: §1245 depreciation recapture must be recognized in the year of sale, regardless of how much cash you received at closing.2 Under IRC § 453(i), any gain that would be §1245 ordinary income (recapture on accelerated or bonus depreciation of personal property) is front-loaded into year 1.
This hits hardest for investors who did cost segregation. A cost seg study identifies 5/7/15-year components — appliances, flooring, land improvements, electrical serving equipment — and accelerates their depreciation, often via 100% bonus depreciation under OBBBA. When you sell, every dollar of §1245 recapture on those components is ordinary income taxed in year 1, even if you only received a 10% down payment.
For investors who only took straight-line 27.5-year depreciation on a residential rental (no cost seg): §1245 recapture is typically zero. You depreciated real property (§1250 territory), not personal property. In that case, the §453(i) front-loading rule doesn't apply, and the full gain — §1250 unrecaptured gain and true LTCG alike — can be spread across installment years.
| Gain Type | 2026 Rate | Can it be spread via installment? |
|---|---|---|
| §1245 recapture (cost seg bonus dep components) | Ordinary income, up to 37% | No — recognized in full in year of sale per §453(i) |
| §1250 unrecaptured gain (straight-line real property dep) | Max 25% per IRC §1(h)(1)(D) | Yes — spread across installment years |
| Long-term capital gain (appreciation above original cost) | 0% / 15% / 20%3 | Yes — spread across installment years |
| NIIT on net investment income | 3.8% (above $200K single / $250K MFJ) | Yes — applies to gain recognized each year |
Worked example: installment sale without cost segregation
This scenario applies to the most common case — a buy-and-hold residential rental with only straight-line depreciation.
Setup: Residential rental purchased in 2012 for $400,000 (land $100K, building $300K). Investor added $40,000 of capitalized improvements. Held 14 years through 2026. No cost segregation study was done.
Depreciation taken: ($300,000 + $40,000) ÷ 27.5 years × 14 years = $173,091 (all §1250 straight-line)
Adjusted basis at sale: $400,000 + $40,000 − $173,091 = $266,909
Sale price: $700,000. Terms: $140,000 down (20%), $560,000 seller note at 5.8% interest over 8 years.
Total gain: $700,000 − $266,909 = $433,091
Gross profit ratio: $433,091 ÷ $700,000 = 61.9%
Gain composition:
- §1245 recapture: $0 (no cost seg — all depreciation on real property)
- §1250 unrecaptured gain: $173,091 (taxed at up to 25%)
- True LTCG: $433,091 − $173,091 = $260,000 (taxed at 15–20%)
| Scenario | Year 1 tax owed | Total federal tax on gain |
|---|---|---|
| Lump-sum sale (all cash) | ~$112,000 (all at once) | ~$112,000 |
| Installment sale (20% down, 8-yr note) | ~$26,000 (on down-payment gain) | ~$112,000 (spread over 9 years) |
Note: interest income received on the $560,000 note (~$175,000+ total over 8 years at 5.8%) is taxed at ordinary income rates each year — separate from and in addition to the gain tax above.
When cost segregation creates a §453(i) front-loading problem
Now take the same property, but assume the investor did a cost segregation study in 2012 and took 100% bonus depreciation (now restored permanently under OBBBA for property placed in service after January 19, 2025; earlier years used phased percentages) on $110,000 of personal property components identified by the study.
On a 2026 sale, §1245 recapture = $110,000 of ordinary income. Under IRC § 453(i), this entire amount is recognized in the year of sale — even though the investor only received $140,000 at closing. At a 37% bracket, that's $40,700 of tax due April 15 of the following year, before receiving most of the note principal.
The remaining gain (§1250 + LTCG) is still spread via installment — only the §1245 portion is front-loaded. But for an investor who took large bonus depreciation, this front-loading can eliminate much of the cash-flow advantage the installment method provides. Anyone who has done cost segregation should model the §453(i) impact before committing to a seller-financed exit.
See our depreciation recapture guide for the full mechanics of §1245 vs. §1250 recapture and how cost segregation shifts the recapture stack.
Installment sale vs. 1031 exchange: when each wins
| Factor | Installment Sale | 1031 Exchange |
|---|---|---|
| Tax deferred | Partial — same total, different timing | 100% — all gain deferred into replacement |
| §1245 recapture | Front-loaded in year 1 under §453(i) | Fully deferred — carries over into replacement basis |
| Liquidity | Yes — you receive cash payments over time | No — all equity must roll into replacement property |
| Ongoing RE management | No property to manage; you manage a note | Still own real estate (unless you go into a DST) |
| Deadline pressure | None — agree on terms with buyer | Strict 45-day ID + 180-day close |
| Credit / counterparty risk | Yes — buyer must make payments; default = foreclosure | None (proceeds go through QI, then to replacement) |
| Estate planning | Note in estate; deferred gain does NOT get step-up at death | Step-up at death eliminates all deferred gain permanently |
| Best fit | Investors who want liquidity, no replacement property, and income stream | Investors who want maximum deferral and plan to stay in real estate |
See our 1031 exchange guide for the full rules, and our 1031 exchange calculator to see the exact tax deferred on your specific property. If management burden is the issue, a Delaware Statutory Trust (DST) lets you do a 1031 into passive fractional ownership — no landlord duties, still full deferral.
Structuring the seller note: AFR and imputed interest
The interest rate on your seller note has tax consequences beyond the income you earn. If you charge below the IRS Applicable Federal Rate (AFR) for the note's term, the IRS will recharacterize a portion of the principal payments as interest income under IRC § 1274 — taxing it at ordinary rates instead of the capital gain rate.4
The AFR is published monthly by the IRS in a Revenue Ruling, split by term:
- Short-term AFR: notes ≤3 years
- Mid-term AFR: notes 3–9 years (most seller-financed residential deals)
- Long-term AFR: notes >9 years
Check the current AFR at IRS.gov before finalizing note terms. Charging the AFR or higher avoids any imputed interest issue and keeps the tax reporting clean.
- Set interest at or above the current IRS AFR for your note term
- Record a deed of trust or mortgage securing the note against the property
- Include a due-on-sale clause (prevents buyer from transferring without your consent)
- Consider a balloon payment in 5–7 years rather than full amortization — reduces note complexity and forces a refinance event where a creditworthy buyer will pay you off
The §453A interest surcharge on large installment notes
IRC § 453A imposes an annual interest surcharge when your total outstanding installment obligations exceed $5,000,000 at year end.5 The surcharge = (outstanding deferred tax) × (federal underpayment rate), computed on the deferred gain. For most residential rental investors this threshold doesn't apply, but commercial property sellers and investors holding multiple concurrent installment notes should model the §453A exposure.
Electing out of installment reporting
Installment reporting is the default — it applies automatically whenever you receive a future payment. You can elect out and recognize all gain in the year of sale. This makes sense when:
- You have large net operating losses or capital loss carryforwards in the sale year that can absorb the full gain tax-free.
- You have suspended passive activity losses from the property — released in full under IRC § 469(g) on a complete disposition — large enough to offset the gain. Electing out and coordinating PAL release in one year can eliminate the tax bill entirely.
- You expect your tax rate to be higher in future years (anticipated higher income, expiring deductions) — deferral would cost more than paying now.
The opt-out election must be made on a timely filed return (including extensions). It's irrevocable for that transaction. See our passive activity loss guide for how PAL carryforward release interacts with installment sale timing.
Risks you must factor in
- Buyer default. If payments stop, you must foreclose — a process that typically takes months to over a year, costs legal fees, and may leave the property in worse condition than when you sold. A creditworthy buyer with a substantial down payment (25%+) dramatically reduces this risk.
- Property value decline. A buyer with little equity may walk away if the property drops in value. You'd recover a property worth less than the outstanding note balance, having already recognized and paid tax on gain that is now economically reversed.
- Ordinary-rate interest income. All interest you earn on the note — potentially $100K+ over a multi-year term — is taxed at ordinary income rates (up to 37%), not at favorable capital gains rates. Factor this into the total return comparison vs. a 1031 reinvestment.
- Note illiquidity. You can sell a seller note on the secondary market, but typically at a 15–30% discount to face value. Selling the note triggers gain recognition on the remaining deferred principal — you lose the deferral benefit and collect less than face value.
- No step-up at death. Unlike real property held at death (which gets an IRC § 1014 step-up eliminating all deferred gain), an outstanding installment note passes to heirs at face value. Heirs must continue recognizing gain on future payments. If estate elimination of deferred gain is part of your plan, a 1031 cascade held to death is substantially better.
When an installment sale is the right move
The strategy works best when all five conditions are met:
- You want out of real estate and don't want to manage a replacement property (or a DST isn't attractive).
- Minimal or no cost segregation was done — so §453(i) doesn't create a large year-1 hit.
- The buyer is creditworthy — ideally someone with substantial assets, a track record as a landlord, and 25%+ equity in the deal.
- You're in or near the top bracket today but expect lower income in future years — installment spreading can shift some gain into lower LTCG brackets or below NIIT thresholds.
- You want a predictable income stream — a seller note generating 5–7% interest can serve as a bond substitute in retirement, without the active management of continued landlording.
Frequently Asked Questions
What is an installment sale for real estate investors?
An installment sale under IRC §453 is any real estate transaction where you receive at least one payment after the tax year in which the sale closes. In practice it usually means acting as the lender — accepting a down payment, carrying a promissory note secured by the property, and collecting principal plus interest from the buyer over a set term. You recognize gain only as you receive principal payments each year using a gross profit ratio, rather than all at once. There is no replacement property to find, no qualified intermediary, and no 45/180-day deadline pressure.
Does an installment sale actually reduce my total tax bill?
No — it changes when you pay taxes, not how much. Total federal tax on the gain is identical to a lump-sum sale; the installment method simply spreads it across payment years using the gross profit ratio. The real benefit is time-value of deferral: keeping $86K in taxes invested for 8 years at a 6% return creates $20–$40K in additional after-tax wealth. If installment payments land in lower-income years — below NIIT thresholds or in lower LTCG brackets — total tax can decrease at the margin, but this requires careful income planning.
What is the §453(i) rule and why does it matter if I did cost segregation?
IRC §453(i) requires §1245 depreciation recapture — gain from cost segregation bonus depreciation on personal property components (5/7-year assets) — to be recognized in full in the year of sale, regardless of how little cash you received at closing. If you took 100% bonus depreciation on $110,000 of cost seg components, that entire $110,000 is ordinary income in year 1, even if you only collected a 10% down payment. For investors who used cost segregation extensively, this front-loading can eliminate most of the cash-flow advantage the installment method provides. Anyone who has done cost segregation should model the §453(i) impact before structuring a seller-financed exit.
Can §1250 unrecaptured gain and long-term capital gain be spread over installment payments?
Yes — only §1245 recapture is front-loaded under §453(i). §1250 unrecaptured gain (straight-line depreciation on the building, taxed at up to 25%) and true long-term capital gain (appreciation above original cost, taxed at 0/15/20%) can both be spread across installment years using the gross profit ratio. NIIT (3.8%) also applies proportionally to gain recognized each year, so it spreads as well. For straight-line-only investors with no cost segregation, the entire gain — including §1250 — can be deferred across the note term. This is where the installment method's benefit is strongest.
How does the gross profit ratio work in an installment sale?
Gross profit ratio = Total Gain ÷ Sale Price (Contract Price). Each year, multiply the principal received that year by this ratio to find the taxable gain for that year. Example from the worked case above: $433,091 gain ÷ $700,000 sale price = 61.9% ratio. On a $140,000 down payment, you recognize $86,667 of gain in year 1. On $70,000 of principal received in year 2, you recognize $43,330. Interest income is reported separately at ordinary income rates — it is never part of the gross profit ratio calculation.
When does an installment sale make more sense than a 1031 exchange?
An installment sale wins when: you want liquidity and income rather than staying in real estate; you cannot find a suitable replacement property within the 45-day identification window; you did no cost segregation so §453(i) front-loading doesn't apply; or you expect lower income in future years that would shift gain into lower brackets or below NIIT thresholds. The 1031 exchange wins when you want maximum total deferral — it defers §1245 recapture (which installment cannot), carries no buyer credit risk, and paired with a hold-until-death strategy permanently eliminates all deferred gain via the §1014 step-up.
What interest rate must I charge on a seller-financed note?
You must charge at least the IRS Applicable Federal Rate (AFR) for your note's term. The AFR is published monthly and split by term: short-term (≤3 years), mid-term (3–9 years, typical for most residential seller notes), and long-term (>9 years). Charging below the AFR triggers imputed interest under IRC §1274 — the IRS recharacterizes a portion of your principal payments as interest income taxed at ordinary rates instead of capital gains rates. Check the current AFR at IRS.gov before finalizing note terms.
What happens to installment sale deferred gain when the seller dies?
Unlike real property, an installment note does NOT receive a step-up in basis at death under IRC §1014. Your heirs inherit the note at its outstanding balance and must continue recognizing gain on principal payments as they collect them — the deferred tax obligation transfers with the note. This is a critical disadvantage compared to holding real property until death, where the §1014 step-up permanently eliminates all four layers of deferred tax. If estate planning to eliminate deferred gain is a priority, a 1031 exchange cascade held to death — see our stepped-up basis guide — is substantially more powerful than installment sale deferral.
Model your installment sale before you commit
The interaction between §453(i) recapture front-loading, §469(g) PAL release, installment gain recognition across brackets, and estate planning consequences requires modeling your specific depreciation history, cost seg position, income level, and timeline. A fee-only advisor who specializes in real estate investors runs these scenarios for clients every week. We match you with one — no obligation, no commission.
REInvestorAdvisorMatch is a referral service, not a licensed advisory firm. We may receive compensation from professionals in our network.
Content is for informational purposes only and does not constitute financial, tax, or investment advice.
- IRS Publication 537 — Installment Sales (IRS.gov)
- IRC § 453 — Installment method; IRC § 453(i) — recapture income recognized in year of disposition (Cornell LII)
- IRS Topic No. 409 — Capital Gains and Losses; 2026 LTCG rates (IRS.gov)
- IRC § 1274 — Imputed interest on below-AFR seller financing (Cornell LII)
- IRC § 453A — Interest surcharge on large installment obligations exceeding $5M (Cornell LII)
- IRS Topic No. 705 — Installment Sales overview (IRS.gov)
Tax values verified as of May 2026. §453(i) recapture front-loading: IRC §453(i)(1). §1250 unrecaptured gain: max 25% per IRC §1(h)(1)(D). LTCG 2026 thresholds: 0% ≤$49,450 single/$98,900 MFJ; 20% above $545,650 single/$613,700 MFJ per IRS Rev. Proc. 2025-40. NIIT 3.8% threshold: $200K single/$250K MFJ per IRC §1411. OBBBA 100% bonus depreciation: permanent for property placed in service after Jan. 19, 2025.