Sure, as long as you're not e-filing. The white-out is tough to get off the screen. <ggg>
OTOH, if you're doing paper forms, you may want to just fill them out on your computer. Nearly all the forms you download from the IRS website are the kind of pdf forms you can fill in, save, and print off. They won't do any of the math for you, but they're easy to change if you find you've made a mistake.