US Gov Navigator

Taxes & IRS

Form 8878 (sp) — IRS e-file Signature Authorization for Form 4868 or Form 2350 (Spanish Version)

Form 8878 (sp)

IRS e-file Signature Authorization for Form 4868 or Form 2350 (Spanish Version)

Open official form page

Last checked Aug 18, 2026

Official sources:

Related

US Gov Navigator does not host government forms. Always download or file on the linked .gov page.