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Backup Withholding

W-9 Backup Withholdings

Written by CoinZoom Support

What is backup withholding?

Backup withholding is a 24% Federal tax that the IRS requires us to withhold on earnings on certain types of income. This typically occurs when a taxpayer hasn’t reported income correctly to the IRS in the past. State backup withholding may also apply depending on the state where you reside.


How do I know if I’m subject to backup withholding?

Backup withholding is uncommon. The IRS would notify you or CoinZoom directly in writing if this did apply to you.
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For more information on the different types of backup withholding, visit https://www.irs.gov/businesses/small-businesses-self-employed/backup-withholding


CoinZoom will ask you to verify your account information, and then declare if you are subject to backup withholding like the following screenshots.

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