Macintax rhymes with:
pentax, syntax, aftertax, counterattacks, haystacks, overtax, pentax, smokestacks, surtax, syntax, turbotax
Macintax sounds like:
macintosh, macintosh's, macintoshes, mackintosh, magnates, magnet's, magnetek, magnetic, magnetics, magnets, magnitudes, management's, managements, managements', mankind's, mankinds, massenet's, mccants, mcintosh, mismatch, mismatches, monsanto's