Impacts rhymes with:
compacts, compacts, pact's, pacts, act's, acts, attracts, compacts, detracts, distracts, enacts, exacts, extracts, facts, interacts, medfacts, overreacts, pact's, pacts, reacts, redactes, reenacts, retracts, tracts
Impacts sounds like:
infectious, infects, infests, invests