In the current year, Robbie paid $17,000 for a computer to be used in his business. In addition, he had to pay a state sales tax of $850 on the purchase. How should Robbie handle the sales tax? Deduct $850 on Schedule A Disregard it as no longer deductible Increase the basis in the computer by $850. Deduct the $850 sales tax as an expense on Schedule C