Taxable Account Harvesting Strategies

What’s the most underused asset in an affluent retiree’s plan? The brokerage account, because most people only touch it to sell when they need cash. A taxable account is the one place you control the timing of your own income. You decide when to realize a gain and when to bank a loss, and harvesting either on purpose, in the right year, can shave a tax bill for decades. The account is a lever. Most people never pull it.

The two harvests

Loss harvesting is the better known move. You sell a position trading below what you paid, lock in the capital loss, and use it to offset gains elsewhere or up to $3,000 of ordinary income a year, with the rest carried forward indefinitely. You then buy a similar but not identical holding to stay invested, sidestepping the wash-sale rule, which disallows the loss if you rebuy the same security within 30 days. The result is a tax asset banked at no cost to your market exposure.

Gain harvesting is the quieter, more counterintuitive one. In a low-income year you deliberately sell winners to realize long-term gains while they’re cheap, then immediately rebuy them to reset your cost basis higher. For 2026, a married couple pays 0% on long-term gains until total taxable income reaches $98,900. Harvest a gain inside that band and the tax is literally zero, and there’s no wash-sale rule on gains, so you can rebuy the same share the same day. You’ve reset your basis for free, which shrinks every future sale.

Why the year decides the lever

Here’s the part people miss. You usually can’t harvest gains and losses in the same year and have both work, because they cancel each other out. Realize $50,000 of losses and $50,000 of gains and you’ve netted to zero, banking neither asset. So the year picks the lever. A down market year is a loss-harvest year, where you bank losses against future gains. A low-income year with the market up is a gain-harvest year, where you reset basis at the 0% rate. Reading which one you’re in is the whole skill.

There’s a second-order reason loss harvesting matters more for the wealthy. Banked losses are a permanent reserve. When you later need to sell a concentrated position, rebalance a bloated stock allocation, or unwind real estate, those carried-forward losses absorb the gain. You’re not avoiding tax this year. You’re stockpiling a shield for the year you’ll need it most.

A worked year

Take a couple retired at 64 with $30,000 of dividends and interest and no other income yet. The market’s up. Their ordinary stack is short, so roughly $68,000 of room sits under the 0% gains breakpoint. They sell appreciated index funds to fill it, realize the gain at zero tax, and rebuy the same fund that afternoon at the higher basis. Next year a different couple faces a 15% market drop. They harvest $80,000 of losses, offset a large gain from selling a rental, and carry the rest forward. Two accounts, two years, two opposite moves, both right for the conditions.

If your portfolio is large

For households with $3M or more, the harvest is rarely a once-a-year event. It runs continuously through the year, because volatility creates loss-harvesting chances inside individual lots even when the index is up. A separately managed account or a direct-indexing approach can harvest losses at the individual-stock level that a single index fund hides. Watch the toll, though. Gain harvesting raises your MAGI, which feeds IRMAA Medicare surcharges and the 3.8% net investment income tax, so the 0% federal rate isn’t always the all-in cost. And remember the endgame. Assets you hold until death get a step-up in basis, wiping the gain entirely, so the most appreciated lots are often the ones to keep, not harvest.

Your taxable account is a timing machine. Learn to read which lever the year is handing you and pull it on purpose. For the rules that keep a loss harvest valid, see tax-loss harvesting rules for retirees, and for the gain side, the capital gains 0% bracket strategy.