How to Retire Early Retiring early sounds like a dream come true, but it’s important to take a look at the cold, hard facts. Share | Related Content 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? Choosing a Retirement Plan that Fits Your Business To choose a plan, it’s important to ask yourself four key questions. Inflation & Retirement Estimate how much income may be needed at retirement to maintain your standard of living.