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ACA6 min readJanuary 2025

Correcting a prior-year 1095-C without making it worse

An incorrect filing is a fixable problem. A missed response deadline is not.

Last reviewed: · Applies to: General guidance — not written for a specific plan or reporting year

Primary source: IRS Affordable Care Act — employers. Dates, rates, thresholds, and penalty amounts change. Confirm the current figures against the primary source before acting.

Portions of this page are awaiting compliance review and are not represented as verified.

Identify what is actually wrong

Offer-of-coverage codes, affordability safe-harbor codes, and covered-individual months fail in different ways and require different corrections. Diagnose the specific field before touching the filing.

The mechanics of a correction

Corrected statements go to individuals as well as the IRS, and only one 1094-C may be the authoritative transmittal. Re-filing a full replacement set when a targeted correction was required is a frequent and expensive error.

  • Mark the corrected return properly rather than submitting a duplicate original.
  • Furnish the corrected statement to the individual.
  • Keep the reconciliation that explains the change.

If a proposed assessment letter arrives

The response window is short and the proposed assessment assumes the IRS data is correct. A documented, timely response may reduce or resolve a proposed assessment.

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