Mini, Inc., earns pretax book net income of $750,000 in 2020, its first year of operations. Mini recognized $20,000 in bad debt expense for book purposes. This expense is not yet deductible for tax purposes. Mini reports no other temporary or permanent differences. The U.S. Federal corporate income tax rate is 21%, and Mini earns an after-tax rate of return on capital of 8%. Compute Mini's current income tax expense.