2. Don't forget state extensions.
If you file for a federal extension, don’t forget to file for a state extension, too.
Affected clients with investments held in different states can end up having to file several state tax returns. “In that case, it’s important to file an extension for every state that’s relevant to the return,” said Jean-Luc Bourdon, a CPA, PFS and principal at Bright Path Wealth Planning.
This can be particularly tricky in some states, as certain jurisdictions allow taxpayers to ask for extensions electronically, while others require that the request be sent in via snail mail.