Shannon Polymers uses straight-line depreciation for financial reporting purposes for equipment costing $800,000 and with an expected useful life of four years and no residual value. For tax purposes, the deduction is 40%, 30%, 20%, and 10% in those years. Pretax accounting income the first year the equipment was used was $900,000, which includes interest revenue of $20,000 from municipal bonds. Other than the two described, there are no differences between accounting income and taxable income. The enacted tax rate is 40%.