Answer: manyhappyreturns

AnswerCrossword Clue
MANYHAPPYRETURNS

What I.R.S. won't wish us

MANYHAPPYRETURNS

What C.P.A.'s wish for their clients?

MANYHAPPYRETURNS

Wish to all taxpayers

MANYHAPPYRETURNS
Feature of an extended rally between cheerful tennis rivals?