What is tax-loss harvesting?

Tax-loss harvesting is the practice of selling investments that are currently trading at a loss in order to realize that loss for tax purposes. The realized loss can be used to offset capital gains elsewhere in your portfolio (reducing your tax bill), or — if losses exceed gains — to offset up to $3,000 of ordinary income per year. Any unused losses carry forward to future tax years.

When is the best time to do tax-loss harvesting?

The best time to harvest losses is whenever you have meaningful unrealized losses AND a capital gain or future gain you'd like to offset. You don't have to wait until December. After a market correction — like the Q1 2026 correction — many portfolios have significant unrealized losses that can be harvested immediately. The only hard deadline is December 31 for the current tax year.

What is the wash-sale rule and how does it affect tax-loss harvesting?

The wash-sale rule prevents you from claiming a tax loss if you buy the same or a 'substantially identical' security within 30 days before or after selling it at a loss. If you violate the wash-sale rule, the loss is disallowed and added to the cost basis of the new purchase. To legally harvest a loss while maintaining market exposure, you can buy a different (but similar) fund or stock that tracks the same sector or index.

How much can tax-loss harvesting actually save me?

It depends on your tax bracket and the size of the losses. If you're in the 22% bracket and you harvest $10,000 in losses to offset $10,000 in capital gains, you save roughly $1,500–$2,380 in taxes (depending on whether those gains were short-term or long-term). For higher earners in the 32–37% bracket with substantial gains, the savings can be significant — often $5,000–$20,000+ per year.

Can I tax-loss harvest in an IRA or 401(k)?

No. Tax-loss harvesting only works in taxable brokerage accounts. IRAs and 401(k)s are already tax-advantaged, so there are no taxable gains or losses inside them. Tax-loss harvesting is exclusively a taxable account strategy.

Tax-Loss Harvesting After the Q1 2026 Correction: How to Turn Losing Stocks Into Tax Savings

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Here's something most investors don't know: the worst-performing months in the market can also be the most profitable months for your tax bill.

The Q1 2026 correction — sparked by the Iran War, tariff escalations, and market volatility — left many portfolios looking ugly. Red numbers. Unrealized losses. The instinct is to look away until things recover.

That's the wrong instinct.

A portfolio full of paper losses is actually an asset, if you know how to use it. Tax-loss harvesting is the strategy that turns your worst-performing positions into cold, hard tax savings. It's one of the few legal moves that can cut your tax bill by thousands of dollars — without changing your long-term investment thesis at all.

Here's exactly how it works, step by step.

What Tax-Loss Harvesting Actually Is

Let's cut through the jargon.

When you sell a stock or fund at a loss, the IRS lets you use that loss to reduce your taxable income. Specifically:

Losses offset gains. If you have $15,000 in capital gains this year and you harvest $15,000 in losses, your net taxable gain is zero. You pay nothing.
Excess losses offset income. If your losses exceed your gains, you can deduct up to $3,000 of ordinary income per year. A single person in the 22% bracket saves $660 in taxes just from that.
Unused losses carry forward forever. If you harvest $30,000 in losses but only use $15,000 this year, the remaining $15,000 carries forward to offset future gains or income.

The catch: you actually have to sell the losing position to realize the loss. Paper losses don't count. You have to pull the trigger.

But here's what makes it powerful: you don't have to stay out of the market. You sell the loser, bank the tax loss, and immediately buy something similar (but not identical) to maintain your exposure.

The Q1 2026 Setup: Why Right Now Matters

This is not a theoretical exercise. Q1 2026 handed many investors exactly the conditions tax-loss harvesting was designed for.

Consider what happened:

The S&P 500 pulled back 8–12% from its February highs
Tech stocks and growth names got hit harder — some down 20–30% from peak
Energy stocks whipsawed with oil volatility
International stocks sold off on geopolitical concerns

If you bought any of those positions in 2024 or early 2025, you may be sitting on meaningful unrealized losses right now. And the April tax deadline means if you want those losses to count against 2025 gains — you already missed it. But Q1 2026 losses can be harvested against Q1–Q4 2026 gains.

This is a 2026 tax year play. Any gains you've already realized this year — or expect to realize — can potentially be offset.

The Step-by-Step Tax-Loss Harvesting Process

Step 1: Identify Positions With Unrealized Losses

Log in to your taxable brokerage account and look at your unrealized gain/loss column. You're looking for positions that are meaningfully in the red — ideally ones where the loss has been triggered by market conditions rather than a permanent deterioration in the underlying business.

The distinction matters. A great company temporarily beaten down by a macro event is a harvesting candidate. A company with fundamentally deteriorating business — falling revenue, rising debt, shrinking margins — might be a permanent write-off. Know the difference before you harvest.

Common Q1 2026 harvesting candidates in many portfolios:

Tech ETFs bought in late 2024
Energy stocks caught in the correction
Consumer discretionary names hurt by tariff fears
International/emerging market ETFs

Step 2: Check Your Gain/Loss Situation for the Year

Before harvesting, you need to know what you're harvesting against. Ask yourself:

Have I already realized any capital gains this year? (Dividends reinvested in a taxable account can trigger small gains too.)
Do I have any planned sales coming up — a rental property, business interest, or concentrated position?
What's my expected income this year? (Relevant for determining if ordinary income offset is valuable to you.)

If you're in the 0% long-term capital gains bracket (married filing jointly under ~$96,700 for 2026), tax-loss harvesting is less valuable — you may not owe much on gains anyway.

If you're in the 15–20% long-term gains bracket or the 22–37% ordinary income bracket, every dollar of harvested loss is real money.

Step 3: Sell the Losing Position

Execute the sale. Keep track of:

Which shares you're selling (FIFO vs specific identification — choose specific identification for maximum flexibility)
The exact sale date
Your cost basis and the loss amount

Your brokerage will report this to the IRS on a Form 1099-B. Make sure your cost basis information is correct.

Step 4: Reinvest in a Similar (Not Identical) Position — Avoid the Wash-Sale Rule

This is the most important step most people get wrong.

The wash-sale rule says: if you buy the same security (or one "substantially identical") within 30 days before or after selling it at a loss, the loss is disallowed. You lose the tax benefit.

So you can't sell SPY and immediately buy SPY back. But you CAN:

| Sell This | Buy This Instead | |-----------|-----------------| | SPY (S&P 500 ETF) | VOO or IVV (different S&P 500 ETF) | | QQQ (Nasdaq-100) | VGT (tech ETF) or QQQM | | XOM (Exxon Mobil) | CVX (Chevron) or XLE (energy ETF) | | AAPL (Apple) | MSFT (Microsoft) or VGT | | EEM (emerging markets) | VWO or IEMG | | BRK.B (Berkshire) | VFH (financials ETF) or VFINX |

The key: maintain similar market exposure without buying "substantially identical" securities. Switching from one S&P 500 ETF to another from a different provider (SPY → VOO) works. Switching from one stock to a competitor in the same industry works.

Wait 31+ days, then you can switch back to your original holding if you prefer it.

Step 5: Track and Report on Schedule D

When you file your 2026 taxes, your broker will provide a 1099-B with all your realized gains and losses. These flow through Schedule D and Form 8949 on your return.

Net gains minus net losses = your taxable capital gain or deductible loss. Up to $3,000 of net losses can offset ordinary income; the rest carries forward.

Real Numbers: What Does This Actually Save?

Let's make this concrete.

Example A — High earner, existing gains:

Portfolio: Sold growth stock earlier this year for $20,000 profit (short-term)
Harvested losses in Q1 2026: $18,000 (various ETFs down from purchase price)
Net taxable gain: $2,000 (instead of $20,000)
Tax bracket: 32%
Tax savings: $18,000 × 32% = $5,760 saved

Example B — Standard investor, no gains:

Portfolio: No realized gains in 2026, but $12,000 in harvested losses
Ordinary income deduction: $3,000 (max per year)
Tax bracket: 22%
2026 savings: $3,000 × 22% = $660 saved
Remaining $9,000 carries forward to offset future gains

Example C — Near-retiree, managing capital gains:

Selling rental property in 2026 for $80,000 capital gain
Harvested stock losses: $30,000
Net taxable gain: $50,000 (instead of $80,000)
Tax bracket: 15% long-term gains
Tax savings: $30,000 × 15% = $4,500 saved

What to Do With the Stocks You're Harvesting

Just because you're selling for a tax loss doesn't mean you're abandoning your strategy.

If the position is a solid long-term hold (a dividend grower, a value stock with a good margin of safety): sell, harvest the loss, buy the replacement. After 31 days, you can rotate back if you prefer the original name.

If the position is one you were already questioning: the tax-loss harvest is the excuse you needed to exit cleanly. Use the proceeds to buy something better — run it through the Graham Number calculator at valueofstock.com/calculator and find a stock that's actually trading below intrinsic value.

The correction created real value in some sectors. Harvesting the losers in your portfolio and redeploying into fundamentally cheap names is not just smart tax planning — it's smart value investing.

Common Mistakes to Avoid

Harvesting losses in your IRA or 401(k) — Doesn't work. Tax-loss harvesting is a taxable-account-only strategy. Period.

Violating the wash-sale rule — The most common mistake. Thirty-one days. Count carefully. When in doubt, use a different but comparable security.

Harvesting losses just to harvest them — If you're in the 0% capital gains bracket, the math may not favor it. Calculate your actual tax savings first.

Ignoring transaction costs — If you're paying commissions (most people aren't, at modern brokers), make sure the tax savings outweigh the trading costs.

Waiting until December — Tax-loss harvesting is a year-round strategy. The best time to harvest is when you have meaningful losses — not when you're scrambling before year-end.

The Bottom Line

The Q1 2026 correction is not just bad news for your portfolio. It's a tax planning opportunity.

If you have positions in a taxable brokerage account that are sitting at meaningful losses, right now — in April — is an excellent time to harvest them. You can maintain your market exposure by buying comparable securities, avoid the wash-sale rule, and potentially save thousands on your 2026 tax bill.

Tax-loss harvesting is one of the most powerful free tools available to retail investors. It doesn't require any special accounts or professional advice to execute. It just requires knowing the rules and acting deliberately.

Your next step: log in to your taxable brokerage, sort by unrealized loss, and see what you're working with. Then run the replacement candidates through our Graham Number calculator to make sure whatever you're buying to maintain exposure is actually worth owning.

For the full value investor toolkit — including the 6-point Graham screen and our complete margin of safety methodology — the StockWise6 guide on Gumroad is available for a one-time purchase.

Disclaimer: This article is for educational and informational purposes only. It does not constitute personalized tax or financial advice. Tax-loss harvesting involves complex rules (including the wash-sale rule) that vary by individual situation. Consult a qualified tax advisor or CPA before executing tax-loss harvesting strategies. Losses on securities may affect your overall portfolio performance.

Tax-Loss Harvesting After the Q1 Correction: How to Turn Losing Stocks Into Tax Savings