This deal has ended.
Today only, Amazon takes 50% off H&R Block At Home Tax Software, all at current best prices. They have boxed software and downloads for Windows and Mac. For instance, the H&R Block At-Home 2010 Deluxe Federal + eFile drops from $34.99 to $17.49. Shipping adds $4.98, but on orders of $25 (or for Prime members) shipping is free. Sales tax is only charged in KS, KY, ND, NY, and WA.