Retirees submitting collectively can understand as much as $96,700 in long-term positive aspects at a 0% federal fee, however unused room vanishes completely on December 31.
Selling appreciated shares and instantly repurchasing them resets the price foundation greater at zero tax price, since wash-sale guidelines solely apply to losses.
RMDs beginning at 73 and a projected 3.3% Social Security COLA in 2027 will shrink this window, making pre-RMD years the prime harvest alternative.
Picture a pair of their late 60s. He retired at 66, she at 64. Between them they gather roughly $54,000 a 12 months in Social Security, pull $18,000 from a standard IRA, and maintain a $1.4 million portfolio break up throughout a taxable brokerage account, IRAs, and a small Roth. Buried in that brokerage account sits about $52,000 in unrealized long-term positive aspects on an S&P 500 index fund they purchased a decade in the past. Their CPA talked about they may owe nothing in the event that they promote earlier than year-end. They will not be positive they consider it.
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They ought to. This is likely one of the cleanest tax alternatives within the code, and it disappears at midnight on December 31.
Why This Scenario Is More Common Than You Think
Millions of retirees between ages 62 and 73 sit in the identical window: retired, not but taking required minimal distributions, drawing Social Security plus modest IRA withdrawals, with embedded positive aspects in taxable accounts from the lengthy bull market. Bogleheads discussion board threads on “0% capital positive aspects harvesting” run to hundreds of posts each autumn for precisely this purpose. The technique is authorized and repeatable each calendar 12 months till RMDs or greater spending push revenue above the brink.
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Two figures do the heavy lifting. For 2026, the usual deduction for a married couple submitting collectively is $32,200. The 0% long-term capital positive aspects bracket for joint filers runs as much as roughly $96,700 in taxable revenue. A pair can shelter about $128,900 of gross revenue, of which as much as $96,700 might be long-term positive aspects, and owe zero federal tax on these positive aspects.
Run our couple by it. Roughly $46,000 of their Social Security is taxable as soon as different revenue is layered in. Add the $18,000 IRA withdrawal and also you land close to $64,000 of unusual revenue earlier than the usual deduction. That leaves ample headroom beneath the $96,700 ceiling to understand the complete $52,000 achieve at a 0% federal fee.
Long-term positive aspects stack on high of unusual revenue. Any portion of the achieve that falls beneath the 0% ceiling is taxed at 0%. Any greenback above it will get taxed at 15%. Miss by $5,000 and solely that $5,000 is taxed, not the entire achieve.
Why the December 31 Deadline Matters
Capital positive aspects brackets reset each January 1. Unused room doesn’t carry ahead. A pair who realizes $0 in positive aspects this 12 months can not “double up” subsequent 12 months on the 0% fee; they merely lose the 2026 allotment. Financial planners deal with this as a use-it-or-lose-it annual occasion.
Two forces are tightening the window. The 2027 Social Security COLA is monitoring towards 3.3%, which raises taxable unusual revenue and shrinks the room accessible for positive aspects. Once RMDs kick in at age 73, pressured IRA withdrawals usually push retirees out of the 0% bracket completely. The years between retirement and RMDs are the harvest years, they usually double as the most affordable Roth conversion years too (we sized up that very same hole in a free information right here). There will not be a lot of them.
Two Paths, One Clear Winner
Path one: harvest the achieve, then instantly repurchase the identical fund. The wash-sale rule applies solely to losses, not positive aspects, so there is no such thing as a ready interval. The couple resets their price foundation $52,000 greater with out owing a greenback of federal tax. If they later have to promote in a higher-income 12 months, the taxable achieve might be smaller.
Path two: do nothing and let the positive aspects compound untouched. This is true provided that the couple expects to carry the shares till loss of life, at which level heirs obtain a stepped-up foundation and the achieve is erased totally. For most retirees who will finally spend from the taxable account, holding is the inferior alternative. Deferring a 0% tax invoice to lock in a future 15% or 18.8% invoice is a dropping commerce.
What to Do Before Year-End
Pull a tax projection now, not in December. You want a strong estimate of unusual revenue, taxable Social Security, and any dividends earlier than you understand how a lot achieve matches beneath the ceiling. Waiting till Christmas week leaves no room to regulate.
Watch state taxes individually. The 0% federal fee doesn’t lengthen to most states. California, for example, taxes long-term positive aspects as unusual revenue. If you reside in a high-tax state, the harvest shouldn’t be totally free, and the maths adjustments.
Coordinate with Roth conversions. Every greenback transformed from a standard IRA to a Roth counts as unusual revenue and eats into your capital positive aspects headroom. You usually can not maximize each in the identical 12 months.
The widespread mistake: assuming an even bigger achieve means an even bigger tax invoice and avoiding the sale totally. In the 0% bracket, the tax invoice is zero no matter whether or not you understand $5,000 or $50,000, so long as you keep beneath the ceiling. Leaving that room unused is the costly alternative.
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One capital allocation mistake may create large dangers on your retirement. Many buyers make the identical crucial errors: being too conservative, making large bets on “positive issues,” or paying extreme charges. Any of these blunders can endanger your hard-earned financial savings.
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