Yes, you may be able to claim the Sales Tax you paid on the purchase of your Whole House Generator.
If you are itemizing deductions on Schedule A, you have the option to deduct the State Income Taxes you paid OR the total Sales Tax you paid during the tax year. Your deduction for Sales Tax would include ALL the Sales Tax you paid for ALL of your purchases during the year, not just the whole house generator. So once you compute how much you paid in Sales Tax for the entire year, you would compare that amount to the State Income Taxes you paid, and then choose whichever is higher for your deduction on Schedule A.
