Identifying Your Equity Grant Type: Urgent Tax Planning

If you have equity compensation but aren't sure whether it's ISOs, NSOs, RSUs, RSAs, or something else, identifying the type is urgent. Each grant type has completely different tax rules and some have hard deadlines—like the 83(b) election's 30-day window—that once missed cannot be recovered.

Why grant type identification is urgent. Each equity compensation type has completely different tax rules. ISOs can trigger AMT even without a sale. NSOs create ordinary income at exercise. RSAs have a 30-day window for an 83(b) election that, once missed, is gone forever. RSUs are taxed at vesting with no election available. Treating one type as if it were another can mean overpaying taxes by thousands of dollars or missing a time-sensitive planning opportunity.

Where to find your grant type. Check these documents in order:

• Your grant agreement or award letter. This is the document you signed (or acknowledged electronically) when the equity was granted. It will state the grant type explicitly.
• Your equity management portal. Companies use platforms like Carta, Shareworks, E*Trade, or Fidelity to track equity grants. Log in and look for the grant details section.
• Your offer letter. Sometimes specifies the type, though less reliably than the grant agreement.
• HR or your stock plan administrator. If you can't find the documents, they can tell you.

What a CPA does with this. A CPA reviews your grant documents, identifies each grant type, and maps out the tax implications and deadlines specific to your situation. They may find grants you forgot about or identify planning opportunities you're about to miss.

The pitfall: Waiting to figure this out costs money. Some equity decisions have hard deadlines (like the 83(b) election's 30-day window), and others benefit from advance planning across tax years. The sooner your CPA sees the documents, the more options you have.