• The Tax Professionals pages offer useful links and information geared toward accountants, agents, bookkeepers, lawyers, managers, software and forms developers, tax preparers, and other persons performing tax-related transactions for customers.
  • MassTaxConnect - for Massachusetts Taxpayers

    MassTaxConnect is DOR's state-of-the-art, electronic system for filing and paying taxes in the Commonwealth. The new integrated tax system replaced WebFile for Business in 2015, and individual income taxpayers will have access to MassTaxConnect on December 5, 2016. Read More