RETURN Act

The RETURN Act requires the IRS to provide taxpayers with a detailed written explanation whenever a refund claim is denied, including specific instructions on how to appeal the decision. If the agency fails to issue this explanation within 12 months of receiving the claim, the interest rate on the taxpayer's overpayment will increase by one percentage point, capped at $500 and adjusted for inflation after 2026. The law explicitly excludes frivolous claims from these requirements, though taxpayers still receive written notification of denial for such cases. This legislation directly affects individuals and businesses filing for tax refunds by mandating clearer communication and imposing financial penalties on the IRS for delays in processing refund determinations.