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 My Retirement Savings Estimate how long your retirement savings may last using various monthly cash flow rates. Six Surprising Facts About Retirement Confidence This attention-grabbing infographic covers retirement topics you may not have considered. The History of Currency Currency has been around for a long time. Here’s a quick history lesson.