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. Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Lots of Variables with Fixed-Rate Mortgages When selecting a fixed-rate mortgage, a borrower has to determine how many years to finance the loan. 18 Years’ Worth of Days The average retirement lasts for 18 years, with many lasting even longer. Will you fill your post-retirement days with purpose? How Will You Be Remembered? Estate planning is one of the best ways to leave a lasting legacy to your loved ones.