After your 1-month free trial, Office Home is $ per year. Credit card required. Cancel anytime to stop future charges.¹ Save your files to OneDrive and switch from one device to the next without missing a beat. Office apps pick up right where you left off. Office Home is perfect for. Before you can install Office or Office you need to associate it with a Microsoft account, or work or school account. If you have an Office for home product and bought Office at a retail store or online store, but don't have a Microsoft account, it's possible you haven't redeemed your product key yet (if you got one), or you missed the step for linking your recent purchase with an.