W-8 and W-9 best practices and what’s changing

Highlights

  • Use Form W-9 for U.S. payees and the appropriate W-8 for foreign payees. Request the form before the first payment. Without valid documentation, default withholding or presumption rules may apply
  • Most W-9 and W-8 errors are preventable at intake
  • The IRS draft Form W-9 (Rev. June 2026) adds a digital asset broker certification checkbox and new exempt payee Code 14. Any substitute W-9 requires updating once the final form is published
  • CARF (Crypto-Asset Reporting Framework) requires documentation W-8 forms do not currently capture

To dig deeper, visit the original article on the Thomson Reuters blog.