Newegg offers downloads of H&R Block Deluxe + State 2015 Tax Software for Windows or Mac for $44.99. Coupon code "EMCEHGJ58" cuts the price to $17.99. That's $2 under our mention from two weeks ago and the lowest price we've seen. (It's also a current best by at least $9, outside the deal below.) Deal ends March 31.

A close price: Amazon offers both versions for $18.99.