The Annual Tax Calculator helps individuals and businesses estimate how much tax they will owe for an entire year based on their total annual income and tax rate. By entering the yearly income and applicable tax percentage, the calculator instantly displays both the total tax due and the remaining after-tax income. It uses the simple formula Annual Tax=(Annual Income×Tax Rate)/100\text{Annual Tax} = (\text{Annual Income} \times \text{Tax Rate}) / 100Annual Tax=(Annual Income×Tax Rate)/100, clearly showing all calculation steps. This tool is useful for financial planning, budgeting, and ensuring accurate yearly tax estimations for employees, freelancers, and companies.