Mather Kuwada LLP was founded by Gary H. Kuwada and Steven R. Mather. Gary and Steve first met in the 1980s when they were working for the Internal Revenue Service. They both left the IRS over 25 years ago and have represented taxpayers before the IRS and the California tax agencies ever since. Over the years, Gary and Steve jointly represented several clients, but always as part of separate firms.

In 2015, they combined to form Mather Kuwada LLP, the culmination of two distinguished careers that are finally joined together.