Tax Freedom Day Assess how many days you'll work to pay your federal tax liability. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content The Pre-Retirement Checklist This checklist can give you a quick snapshot of how prepared you are. Tuning Your Social Security Benefit When should you take your Social Security benefit? The Facts About Income Tax Millions faithfully file their 1040 forms each April. But some things about federal income taxes may surprise you.