Incurring rhymes with:
concurring, concurring, nonrecurring, occuring, occurring, recurring, blurring, concurring, conferring, deferring, demurring, deterring, hering, heuring, inferring, nonrecurring, occuring, occurring, preferring, purring, recurring, refering, referring, schering, scheuring, schuring, slurring, spurring, stirring, transfering, transferring, whirring
Incurring sounds like:
incoherence, injuring, inquiring, insurance, insurance's, insurances, insuring