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Hard fork

A blockchain split that creates a new coin. If you receive new units you can control, the IRS treats their value as income when received.

What is Hard fork?

A blockchain split that creates a new coin. If you receive new units you can control, the IRS treats their value as income when received.

Why it matters on your return

Under IRS guidance, a hard fork that gives you new units you can control is ordinary income at fair market value on that date. A fork where you receive nothing is not income. Exchanges that credit forked coins months later create timing questions about when control began.

Example

You hold 5 BTC at the time of a fork that creates a new coin credited to your exchange account and immediately tradable. The value of 5 new coins on the credit date is ordinary income; that value becomes their basis.

What if my exchange never supported the forked coin?

If you never gained control of the new units, there is no income to report.

Last reviewed September 10, 2026. Tax rules change; confirm current law before acting.

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