™30-second takeaway
Wash Sales: ETFs, Options and Digital Assets, in one thought.
Explore how substantially identical investments and asset classification complicate common substitutes.
See how each idea connects before exploring the details below.
Put the idea into numbers.
You sell 100 shares for a $1,000 loss and buy 40 substantially identical shares 19 days later. A simplified taxable-account illustration potentially matches 40 shares and defers $400 of the loss into their adjusted basis.
Where understanding breaks down.
Checking only the account where the loss occurred. Replacement purchases through another broker, a spouse or an IRA may matter even when one Form 1099-B does not show the whole pattern.
Remember this.
Test the dates, investment identity, matched quantity, account type and basis treatment—then verify the result under current tax guidance.
ETFs require facts, not slogans
Selling one fund and buying another is not automatically safe or automatically a wash sale. Funds tracking the same or closely related exposure may require analysis of their indexes, portfolios, rights and other facts.
Options and contracts are expressly relevant
The wash-sale rule can reach a contract or option to acquire substantially identical stock or securities. Changing from shares to a closely connected option does not automatically remove the issue.
Digital assets need current classification
The IRS generally describes digital assets as property for federal tax purposes, while the statutory wash-sale rule addresses stock or securities. Do not assume every digital-asset transaction has the same treatment: classification, legislation and guidance can change, and a particular instrument may raise additional questions.
Similarity is not a mechanical percentage test
There is no universal public checklist saying that a stated amount of overlap always is—or is not—substantially identical. When the answer affects a material deduction, use current authority and qualified tax advice.
Use this as a foundation, then verify current rules and product details with primary sources and regulated providers before acting.
Primary sources and further reading
Verify the current tax rules.
Tax law, classifications and reporting requirements can change. Use current IRS guidance and a qualified tax professional for your circumstances.
Connect the concept
Go from explanation to application.
Continue with a related definition and an educational calculator that makes the numbers easier to see.