Curated by: Rubric Advisors
Tax Planning
Wash Sale Rules Explained
Understanding IRS wash sale rules is crucial for effective tax-loss harvesting, as violations can disallow valuable tax deductions and complicate cost basis calculations across multiple account types.
Wash Sale Rules Explained
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IRS Wash Sale Rules
- The wash sale rule disallows tax loss deductions on repurchased securities
- It applies to stocks, bonds, options, and other substantially identical securities
- Designed to prevent artificial tax losses while maintaining the same investment position
- Violations result in deferred loss recognition and adjusted cost basis
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Full Guide
IRS Wash Sale Rules
- The wash sale rule disallows tax loss deductions on repurchased securities
- It applies to stocks, bonds, options, and other substantially identical securities
- Designed to prevent artificial tax losses while maintaining the same investment position
- Violations result in deferred loss recognition and adjusted cost basis
The 30-Day Rule Explained
- Cannot claim a loss if identical security is purchased 30 days before the sale
- Cannot claim a loss if identical security is purchased 30 days after the sale
- The full window is 61 days: 30 days before + sale date + 30 days after
- The rule applies to your spouse's transactions and controlled entities as well
Substantially Identical Securities
- Same company stock is always considered substantially identical regardless of share class
- Bonds from the same issuer with similar terms may also qualify as identical
- Broad market index funds from different providers are generally not identical
- Options on the same underlying stock are typically considered substantially identical
Cost Basis and Cross-Account Impact
- Disallowed loss is added to the replacement security's cost basis
- Holding period includes the original security's holding period for tax purposes
- The loss is not permanently lost, just deferred until the final sale of replacement shares
- An IRA purchase within 30 days disallows the taxable account loss permanently
Common Wash Sale Mistakes
- Repurchasing identical stock in a different account type within 30 days
- Buying back on day 30 instead of waiting the full 31 days
- Overlooking a spouse's purchases in joint or separate accounts
- Assuming different brokerages prevent the wash sale rule from applying
Avoidance Strategies
- Wait 31+ days before repurchasing to preserve the tax loss benefit
- Purchase similar but not identical securities in the same sector as a substitute
- Use ETFs tracking different but similar indexes to maintain market exposure
- Consider doubling your position 31 days before the sale, then selling original shares
Key Takeaways
- Wait 31 days minimum before repurchasing sold securities to preserve tax losses
- Monitor all accounts including spouse's IRAs to avoid inadvertent violations
- Use similar but not identical alternatives to maintain market exposure during the wait
- Maintain detailed records of all transactions for accurate basis calculations
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