Tax Loss Harvesting Calculator
Sell losers to offset winners. See IRS netting rules applied, total tax saved, up to $3,000 ordinary income deduction (IRC §1211), carry-forward, and net benefit after transaction costs.
Harvest — worth it
Harvesting saves $1,260 in taxes this year — a net benefit of $1,240 after transaction costs.
Capital Gains
Losses Available to Harvest
Tax Rates & Costs
IRS Netting Rules — 3-Step Walkthrough
| Step | Action | Before | Loss Used | After |
|---|---|---|---|---|
| 1a | STCL offsets STCG | $5,000 | −$3,000 | $2,000 |
| 1b | Excess STCL (unused) | $0 | — | $0 |
| 2a | LTCL offsets LTCG | $8,000 | −$4,000 | $4,000 |
| 2b | Excess LTCL (unused) | $0 | — | $0 |
| 3 | Cross-net excess losses | ST: $2,000 / LT: $4,000 | STCL→LT / LTCL→ST | ST: $2,000 / LT: $4,000 |
IRS Publication 550 — Investment Income and Expenses. Same-type netting first, then cross-type.
Wash Sale Rule (IRC §1091)
Wash sale rule: do not repurchase the same or substantially identical security within 30 days before or after the sale. Consider a similar (not identical) ETF as a replacement to maintain market exposure.
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