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Mosaic builds out global transactional tax-risk team

William Monat, global head of transactional liability at Mosaic (File photograph)

Mosaic Insurance has expanded its North America and international transactional tax-liability teams to meet heightened demand in the sector, with the addition of four tax-risk specialists and the promotion of another.

William Monat, global head of transactional liability at Mosaic said growth of their global tax business is a strategic priority with the company building out its market-leading underwriting capabilities.

“This product class requires deep expertise to evaluate risk and we are thrilled to have more exceptional specialists join our team,” Mr Monat said.

Mosaic’s tax team now comprises nine specialists who focus on a range of merger and acquisition-related and stand-alone tax risks — for which the product indemnifies policyholders against financial loss, providing certainty during dealmaking.

The group distinguishes itself in complex tax issues and operates on a one-team global platform, backed by a diversified group of capacity providers, including Mosaic’s Lloyd’s syndicates and other leading insurance carriers and supported by the company’s experienced claims team.

In the United States, Heather Eskey has joined the company as a senior vice-president, supporting on tax risks in North America. Meanwhile, Caleb Smith is vice-president in the tax-liability unit in New York while Ze’ev Deutsch is now SVP on the New York tax team.

Jon Hutchens, Mosaic’s global head of tax, transactional liability (File photograph)

“The market for tax insurance in North America continues to grow, as taxpayers seek transactional certainty in uncertain times,” said Jon Hutchens, Mosaic’s global head of tax, transactional liability.

He said it could not be a better time to bring in the new team members.

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Published January 14, 2026 at 3:04 pm (Updated January 14, 2026 at 3:04 pm)

Mosaic builds out global transactional tax-risk team

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