Caleb and his wife, Zuri, are filing their tax return. Which of the following statements regarding signing the return is NOT correct? A joint return must be signed by both the taxpayer and the spouse. Every taxpayer must sign their own return. When a tax return is filed electronically, the taxpayer does not need to sign the tax return. When a taxpayer signs their tax return, they declare, under penalties of perjury, that they have examined the return and accompanying schedules and statements, and to the best of their knowledge and belief, they are true, correct, and complete.