Extension to File Is Not an Extension to Pay: Interest and Penalties Since April

Steve Perry

Published on: 30/09/2026

An extension delayed your filing, not your payment. See how interest and failure to pay penalties have accrued since April 16 and what to do before the October 15 deadline arrives.

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October 15 Extension Deadline: What Filers Must Complete Before the 2025 Return Cutoff

Steve Perry

Published on: 29/09/2026

October 15, 2026 closes the 2025 extension window. Learn what to finish before the cutoff, how IRS matching continues into 2027, and which options narrow after the date passes.

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