Staples offers downloads of QuickBooks Online SimpleStart 2012 for Windows for $79.99. This $79.99 mail-in rebate cuts it to $0. That's the best price we could find for any version of this software by $80. Sales tax is added where applicable. This software allows you to track sales and expenses, track data online from a PC, Mac or mobile phone, and more. Rebate ends November 5.