How long are the GMAT and/or GRE scores good for assuming you wanted to work a year or two before applying to graduate school?

GMAT and GRE scores are good for five years. If you’re thinking of taking some time off before going to graduate school, I definitely recommend taking any standardized test while you’re still in school now. Otherwise, it will be more challenging to refresh your math and certain other skills that you may not use often in a full-time job.