Social Security Estimate (Simplified)
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Very rough monthly benefit estimate — not a substitute for your actual SSA statement.
The actual Social Security formula applies different percentages to different portions of your average indexed monthly earnings ("bend points"), which change yearly. For an accurate figure, check your statement at ssa.gov.
This simplified flat 40% replacement rate is illustrative only — real benefits use a bend-point formula on your top 35 years of earnings.