It's based on how much you paid in and for how long. I believe the calculation is based on your highest 35 years of earnings starting from age 22 to when you pull the trigger on SS. To get the maximum you have to have earned $176k for 2026, which is inflation adjusted so earlier years are lower. If you earned the maximum for 35 years, monthly payments for 2026 are:
- If you retire at 62: $2,969
- If you retire at 67: $4,152
- If you retire at 70: $5,181