Tax Resources

State, Federal and International Tax Resources

As experienced tax attorneys, we understand how scary it can be to receive a tax audit notice from the IRS or Massachusetts Department of Revenue. McMahon & Associates’ IRS tax attorneys will walk you through the process, explain your options and help you resolve your tax dispute. From our offices in Boston, we are conveniently located near the U.S. Tax Court, the Massachusetts Appellate Tax Board, the U.S. District Court and the Internal Revenue Service.

McMahon & Associates’ experienced IRS tax attorneys have put together the following resources to help you navigate complex federal, state and international tax issues.

Federal Tax Controversies

Internal Revenue Service

U.S. Department of Justice

U.S. Attorney’s Office District of Massachusetts

U.S. Department of Justice Tax Division

IRS Offer in Compromise Pre-Qualifier Tool

Massachusetts Tax Disputes

Massachusetts Department of Revenue

Massachusetts Appellate Tax Board

International Tax Compliance and the Offshore Voluntary Disclosure Program

U.S. Department of Justice Offshore Compliance Initiative

IRS Offshore Voluntary Disclosure Program (OVDP)

IRS Offshore Voluntary Disclosure Program (OVDP) – Frequently Asked Questions

Streamlined Filing Compliance Procedures

Submitting Delinquent FBARs

Submitting Delinquent International Information Returns

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The information contained in the McMahon & Associates, PC web site is solely for informational purposes and does not create an attorney-client relationship or constitute legal advice. Unsolicited information transmitted electronically to our attorneys via this web site or the Internet is not considered confidential.

  • IRS to End Offshore Voluntary Disclosure Program March 13, 2018
    The Internal Revenue Service (IRS) announced on March 13, 2018 that it will be ending the Offshore Voluntary Disclosure Program (OVDP) on September 28, 2018. If you have an undisclosed foreign bank account, contact McMahon & Associates to learn how to come into compliance with the IRS. Learn more about OVDP here: IRS Offshore Voluntary […]
  • Sean McMahon Discusses Tax Trends and Challenges in Interview with Massachusetts Lawyers Weekly March 12, 2018
    In a recent interview with Massachusetts Lawyers Weekly In House Counsel, D. Sean McMahon discusses trends in tax law, challenges to the legal profession and how McMahon & Associates assists taxpayers. After leaving the Internal Revenue Service Chief Counsel’s Office in 2005, D. Sean McMahon opened the doors of McMahon Tax Law in Boston. Today, […]