Wash Sale Rule Calculator
Check if a stock repurchase triggers the wash sale rule. See adjusted cost basis.
Wash Sale Triggered?
Yes
Disallowed Loss
$5,000.00
Adjusted Basis
$14,500.00
Wash Sale Analysis
| Days Between Sale and Repurchase | 10 days |
| Within 30-Day Window? | Yes — wash sale applies |
| Total Loss on Sale | $5,000.00 |
| Disallowed Loss | $5,000.00 |
| Currently Deductible Loss | $0.00 |
Adjusted Cost Basis
| Original Basis Per Share | $95.00 |
| Disallowed Loss Added | $50.00 |
| Adjusted Basis Per Share | $145.00 |
Alternative Strategies
| Wait 31+ days | Repurchase after wash sale window |
| Buy similar (not identical) fund | E.g., switch S&P 500 ETFs from SPY to VOO |
| Double up | Buy first, wait 31 days, then sell original |
| Harvest in tax-advantaged account | Buy replacement in IRA (different rules apply) |
Use the Wash Sale Rule Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.
Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.
You might also need
Compound Interest Calculator — See Your Money Grow Over Time
Calculate compound interest with regular contributions and see how your money grows with daily, monthly, or annual compounding. Free, instant results and charts.
Inflation Calculator
Calculate the impact of inflation on purchasing power over time. See how much past dollars are worth today.
Net Worth Calculator
Calculate your net worth by adding up assets (savings, investments, property) and subtracting liabilities (loans, credit cards).