Q: How do you e-sign Form 8453-EX?

A: Form 8453-EX is a declaration to authorize a paid tax preparer to file tax returns on behalf of the taxpayers.
We can send Form 8453-EX to the client, so that they can e-sign it. Once that is done, the tax preparer can e-sign the return and file Form 2290 on behalf of the client.