Dear Liz: All of the Social Security calculators that I have found assume that you will work until you start drawing Social Security benefits. However, I plan on retiring around 62 but not drawing my benefits until age 66 or later. Whenever I calculate my future benefits, the calculator assumes that I will continue to draw the same salary as I have today until I start benefits. I’m worried the calculators are overestimating my benefit.

Answer: As you probably know, Social Security uses your 35 highest-earning years to calculate your benefit. When you work longer than 35 years, you’re typically replacing your lower-earning years in your teens or 20s with higher earnings from your 50s and 60s.

Free Social Security calculators usually assume that pattern will continue. If you stop working or earn less, the calculators may overstate your benefits. To get a better estimate, you’ll need to shell out $40 to use MaximizeMySocialSecurity.com, which allows you to customize your future earnings assumptions.