All of the following statements regarding taxpayer signatures are true EXCEPT? It is acceptable for a tax preparer to sign for a taxpayer if the taxpayer is unable to return to the tax office in a timely manner to review and sign their tax return. Tax returns should be reviewed with taxpayers before obtaining their signature. Taxpayers filing paper returns will need to sign the signature block above the preparer signature. The taxpayer's signature should be on Form 8879, IRS e-file Signature Authorization, before a return is electronically transmitted