
Expert Tax Lawyers
McMahon & Tivnan, PC represents individuals, estates and businesses with federal and state tax controversies, including audits, appeals, litigation and foreign transaction reporting. Collectively, our Boston tax attorneys have more than 100 years of experience investigating and defending IRS and state tax matters.
Civil Tax Controversy
McMahon & Tivnan regularly helps clients with Tax Audit Defense, Collections, Appeals, and Litigation.
International Tax
McMahon & Tivnan advises clients on international tax matters ensuring full compliance while minimizing IRS penalties.
Voluntary Disclosure
McMahon & Tivnan counsels clients through the IRS’s Voluntary Disclosure Program to civilly resolve tax non-compliance issues.
McMahon & Tivnan Recent Successes
New Video
Latest News
- IRS Innocent Spouse ReliefOverview In general, spouses who file joint income tax returns are jointly and severally liable for any tax reported on those returns, which means the IRS can pursue either spouse for the entire amount of tax due. However, the IRS may…