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119-s-684119th CongressWALLET

Tax Administration Simplification Act

Sponsored By: Senator Blackburn, Marsha [R-TN]

Introduced

Summary

More flexible timing for tax elections, estimated payments, and electronic filings. This bill would change timing rules so small businesses have more time to choose S corporation status, individuals get later mid‑year payment windows, and electronic submissions can count as on-time.

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  • Would let small businesses make an S corporation election up to the due date of the S return, including extensions. It would also allow the IRS to accept some late revocations as timely for reasonable cause and to permit elections on timely-filed returns.
  • Would move two mid-year individual estimated tax installments one month later to reduce missed-payment risk. These timing changes would apply to taxable years beginning after enactment.
  • Would extend the mailbox rule to electronic filings and payments so transmissions sent on time but received late are treated as filed or paid on the transmission date. The electronic-mailbox rule would take effect one year after enactment and the IRS must issue implementing guidance.

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Bill Overview

Analyzed Economic Effects

3 provisions identified: 3 benefits, 0 costs, 0 mixed.

Later deadline for S corporation elections

This bill would let a small corporation make an S election up to the tax return due date for that year, including extensions. It would generally allow making the election on a timely filed return unless the IRS says otherwise. The IRS could issue forms and rules and may treat some late revocations as timely for reasonable cause. These changes would apply for tax years starting after the last day of the calendar year that includes enactment, and the revocation rule would apply to revocations made after enactment.

Later due dates for estimated taxes

This bill would move two quarterly estimated tax due dates. The June 15 payment would become July 15. The September 15 payment would become October 15. These date changes would apply for tax years beginning after the date of enactment.

Mailbox rule for electronic tax filings

This bill would treat an allowed electronic filing or permitted electronic payment as filed or paid on the date you transmit it if you send it on or before the deadline but the IRS receives it late. The IRS would have to issue rules or guidance within one year to carry this out. The rule would apply to documents or payments sent on or after one year after enactment.

Sponsors & CoSponsors

Sponsor

Blackburn, Marsha [R-TN]

TN • R

Cosponsors

  • Sen. Cortez Masto, Catherine [D-NV]

    NV • D

    Sponsored 2/24/2025

  • Sen. Warnock, Raphael G. [D-GA]

    GA • D

    Sponsored 12/16/2025

Roll Call Votes

No roll call votes available for this bill.

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