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CPA Practice Advisor · Jan 6, 2026

New Postmark Change Impacts Tax Filings, Extensions, and More

Tax Brief summary and classification of the original reporting.

Bottom Line

💡 New Postmark Change Impacts Tax Filings, Extensions, and More. Worth reviewing for potential client impact.

Summary

A quietly released USPS postmark change update is changing how postmark dates are defined and applied, creating real problems for taxpayers.

Classification

Category: fyiPriority: importantReason: Contains 'update' - significant update

Applies To

1040

Affected Groups

Individual return preparers

Original Source

We aggregate public tax updates and provide AI-assisted summaries. Please read the original reporting for full details.

Read original article