Crossword clues for the word: MXL The word MXL has appeared as an answer to at least 8 crossword clues on different crossword puzzles. Crossword clues for MXL Showing 1 to 8 of 8 results Clue(s) "1040, in old Rome" "Common tax form, to Caesar?" 1040 130% of DCCC Caesar's tax form? Really old IRS form? Roman 1040 Roman tax form?