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Expert Tax Lawyers in Boston Representing Clients Worldwide

Our experienced Boston tax attorneys work with:

Businesses

Companies and business owners come to us when they are involved in an IRS investigation, examination or proceeding. Hire a trusted business tax attorney in Boston today!

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Individuals/Estates

Our Boston tax attorneys represent individuals with Internal Revenue Service (IRS) and state tax controversies including audits, collections, liens, seizures and offers in compromise.

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Voluntary Disclosure/Offshore Assets

We represent taxpayers to resolve their foreign asset and income reporting problems. We can help you with compliance, the Offshore Voluntary Disclosure Programs and FBAR.

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Contact McMahon & Tivnan today to inquire about representation from a skilled tax attorney in Boston! Our team offers extensive experience working with the IRS and resolving audits, appeals, litigation, and other matters involving tax disputes.

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  • FBAR Penalties Applied by Fifth Circuit Court of Appeals to Each Unreported Account
    In a recent case concerning the civil penalties for failing to report non-U.S. financial accounts on the Foreign Bank Account Report, the U.S. Court of Appeals for the Fifth Circuit surprisingly determined that FBAR penalties are calculated based on the number of accounts that were not reported rather than the number of FBAR forms that were not filed.

Testimonials

McMahon & Tivnan helped me through a difficult income tax examination. Sean convinced IRS that no serious penalties should be assessed despite the numerous errors committed by the companies’ prior accountants.

Boston-area business owner

Sean convinced IRS Appeals to abate a penalty of over $500,000 for failure to declare an interest in a foreign trust. Prior to retaining McMahon & Tivnan, two large, national firms could not accomplish what they did.

Retired U.S. executive living in Europe