Capital Loss Carryforward and an Installment Sale: How They Meet
A capital loss carryforward offsets capital gain dollar for dollar, in any year, with no expiration during your life. An installment sale puts capital gain on your return in many years instead of one. So the two meet on Schedule D every year a payment arrives. Whether the carryforward is worth a lot or a little depends on the calendar, the layer of gain it hits, and whether you are alive to use it.
This page covers the tax rules only. It picks up once a loss is already on your return. How losses come to be there is a question for your investment adviser.
The three rules behind every carryforward
The Code's treatment of an individual's capital losses fits in three lines:
- A capital loss offsets capital gain, dollar for dollar, without limit (§1211(b)).
- After that, it offsets only $3,000 a year of ordinary income ($1,500 if married filing separately).
- Whatever is left carries forward to the next year, keeps its short-term or long-term label, and has no year limit (§1212(b)(1)).
So a carryforward is worth full value only in a year that has capital gain to absorb it. In every other year it trickles out at $3,000.
You can find yours on last year's return: Schedule D, line 6 (short-term) and line 14 (long-term). The Capital Loss Carryover Worksheet in the Schedule D instructions shows how the numbers were figured. If you file in California, ask for the California figure too; it can differ.
The Loss Bank, a free guide, walks through these rules with worksheets for you and your CPA. Get The Loss Bank.
Why the installment method changes what a carryforward is worth
On an installment sale, you report gain as principal is paid (§453(a), (c)). Each dollar of principal carries the same share of gain, the gross profit percentage (see gross profit percentage). The payment schedule is in the contract, so your CPA can write down years in advance how much gain lands in each year.
That matters for two kinds of loss:
- The carryforward you hold today meets the first payments.
- Capital losses that land on your return in later years have a known gain to meet in those years.
Sell for cash, and the carryforward is used in the sale year. Any capital loss that shows up on the return in later years has no gain to meet, and trickles out at $3,000 a year.
Illustrative example (The Loss Bank, Chapter 9): Married filing jointly, $300,000 of other income each year, a $2,000,000 gain ($400,000 of it unrecaptured §1250 gain), 2026 federal tables held constant, tax on the gain only. The couple has a $300,000 long-term carryforward, and $50,000 of new capital loss lands on the return in each of years two through five: $500,000 of losses in all. Cash sale: the losses cut federal tax on the gain by $94,310, and $173,000 is still unused after year ten. Ten-year installment sale: every dollar meets gain, and the same losses cut the tax by $126,672.
Same losses, $32,362 more, only because of the calendar. Note interest, time value and reinvestment are left out so the loss effect stands alone. The losses are given numbers on a return, not a projection of any account.
Which layer of gain the carryforward hits first
Real estate gain is not taxed at one rate. It sits in layers (§1(h)): the 25% layer (unrecaptured §1250 gain, the straight-line depreciation on the building) and the 0/15/20% layer (the rest of the long-term gain).
The netting order in Notice 97-59 sends a long-term carryforward to the 25% layer first (with no collectibles gain for it to absorb), then to the 0/15/20% layer. A short-term carryforward, or a net short-term loss, does the same.
And the installment method takes the 25% layer out of the payments first (Reg. §1.453-12(a)). So on a long note, the earliest payments carry the most expensive layer of gain, and a carryforward in hand on day one reaches it in year one. That is simply how the two rules stack.
What a carryforward cannot reach
Three kinds of income on a sale are ordinary, not capital, and a carryforward reaches them only through the $3,000 allowance:
- §1245 recapture (from a cost segregation study, or equipment and furniture sold with the property). It is recognized in full in the year of sale, even on an installment sale (§453(i)). See section 1245 recapture.
- Note interest. Interest on a seller-financed note is ordinary income every year.
- §1231 lookback income. Net §1231 gain is treated as ordinary to the extent of net §1231 losses from the prior five years (§1231(c)). The test runs in every year installment gain is recognized.
Illustrative example (The Loss Bank, Chapter 6): Married filing jointly, $300,000 of other income, federal only. In the sale year, $150,000 of §1245 recapture is recognized and no other gain. The couple holds a $150,000 long-term carryforward. The carryforward saves $960: $3,000 against ordinary income at 32%. The other $147,000 carries to next year's installment gain.
At death, the carryforward closes
This is the rule that most often surprises sellers with a large carryforward:
- A capital loss carryforward can be used only on the decedent's final income tax return. It does not pass to the estate or the heirs (IRS Pub. 559).
- An installment note does pass to the heirs, with the tax on its unpaid gain. That gain is income in respect of a decedent, with no step-up in basis (§§691(a)(4), 1014(c)). See installment note at death.
Put together: a large carryforward, a long note and an owner in poor health can leave the carryforward unused while the heirs pay tax on gain it could have covered.
On a joint return, the carryforward is split between spouses by whose losses they were. Only the deceased spouse's share closes. Your CPA can tell you how yours splits.
When the carryforward is bigger than the gain
If the carryforward already covers the whole gain, the installment method adds nothing on the loss side. The Code lets you elect out and report the full gain in the year of sale (§453(d)). The election is made on a timely filed return for the year of sale, including extensions, and it can be revoked only with IRS consent (§453(d)(2), (3)). A note in that situation needs a reason other than tax. Compare the two with your CPA before the return is filed.
Sizing the schedule to the bank
This is your CPA's table to run. The questions are simple:
- How big is the carryforward on the return today? That number is known.
- How much gain lands in each year? That is set by the payment schedule.
- How much of that gain is in the 25% layer, and in which years?
- Is there §1245 recapture in year one, or a §1231 loss in the last five years?
The loss your return uses against one year's installment gain is what The Loss Bank calls a scoop: one scoop a year, sized to that year's payment. Only the payment schedule is shaped. It is shaped to the losses your adviser and CPA project, using the low case, not the high one. A plan that works only if large losses keep arriving is built on hope.
To compare a cash sale and an installment schedule side by side, run the calculator.
Bottom line
A capital loss carryforward is a coupon with one store that takes it at full value: capital gain. An installment sale opens that store every year of the note. The carryforward hits the 25% layer first, which the note also pays out first. It cannot reach year-one §1245 recapture or note interest beyond $3,000, and it closes at death.
The Loss Bank, a free guide, walks through these rules with worksheets for you and your CPA. Get The Loss Bank.
Questions to ask your CPA
- What are my federal and California carryforwards, short-term and long-term?
- How much of each year's installment gain is in the 25% layer?
- Is any of my gain §1245 recapture recognized in the year of sale?
- Do I have net §1231 losses in the last five years?
- If my carryforward exceeds my gain, should I elect out under §453(d)?
- On our joint return, whose losses make up the carryforward?
For your CPA: §1211(b); §1212(b)(1); §1(h)(1)(E), (h)(4)(B), (h)(6)(A)(ii); Notice 97-59; Reg. §1.453-12(a); §453(a), (c), (d)(1)-(3), (i); §1231(a), (c); IRS Pub. 559 (capital loss carryovers deductible only on the decedent's final return); §§691(a)(4), 1014(c).
Run your own numbers. Compare a cash sale, seller financing and a structured installment sale side by side, free.
Educational only, not tax, legal or investment advice. Examples are illustrative. Have your CPA or tax attorney review your facts before you act. Hans Goldstein is a licensed insurance agent (CA Insurance License #4273294) and is not a CPA or attorney. He is paid a commission only if a structured installment sale is funded; seller financing pays him nothing. Disclosures.