The bill establishes a tax amnesty program in Massachusetts, as outlined in section 225(e) of Chapter 140 of the Acts of 2024, which ran from November 1, 2024, to December 30, 2024. This program aimed to assist taxpayers with outstanding tax liabilities, including non-filers and under-reporters, by allowing them to file delinquent or amended returns, pay owed taxes and interest, and receive a waiver of most tax penalties. The program saw participation from 12,958 taxpayers, resulting in over $142 million in collections and approximately $30 million in waived penalties. Key legal language inserted into current law includes references to eligible taxpayer types and the online submission process through MassTaxConnect.

Additionally, the bill allows taxpayers who did not receive an Eligibility Letter but meet the requirements to submit an Amnesty Request online, detailing the specific tax types and periods for which they seek amnesty. Taxpayers must submit all unfiled returns and supporting documents and pay the entire balance due to qualify for amnesty on unpaid penalties. The bill outlines exceptions for ineligible taxpayers, such as those involved in litigation or under criminal investigation, and clarifies that all returns filed under the program are subject to verification by the Commissioner. A limited look-back period for non-filers is also introduced, with certain exceptions. Further details about the program are available on the designated amnesty webpage.