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 Lifetime of Earnings Estimate how much you have the potential to earn during your working years. My Retirement Savings Estimate how long your retirement savings may last using various monthly cash flow rates. The Financial Literacy Crisis Many Americans are operating their personal finances with only the barest minimum of knowledge.