Back to Insights Untangling the Mystery of Apportioning Revenue for Service-Based Businesses July 9, 2015 3 Min Read State and Local Tax ServicesBusiness TaxIndividual TaxEstates, Trusts, & GiftsInternational Tax Thomas M. Frascella Director, Tax Strategies, State & Local Tax Group Leader Share this blog post: Contact the Author Thomas M. Frascella Director, Tax Strategies, State & Local Tax Group Leader State and Local Tax Services Specialist Contact 215-441-4600 Email