Blog Posts Standard Deduction 2026: Amounts by Filing Status and When to Itemize 09/15/2026 IRS Form 8879-S Guide: Form 1120-S e-file Signature Rules 09/10/2026 IRS Form 8879-PE Guide: Partnership e-file Signature Rules 09/10/2026 IRS Form 8879-F Guide: Trust & Estate e-file Signature Rules 09/10/2026