At present, the vast majority of Americans have to pay 6.2% social security tax as long as they have income, and the sum of all taxable income is below the prescribed limit. As long as you pay for more than 40 quarters (10 year) and reach the required age (65 years old before 1937 and 67 years old after 1960), you can receive the social security fund in full every month.
People can also choose to retire early and start receiving social security benefits at the age of 62. If so, they can only receive 75% of the full pension, which will remain until their death.
Social security is calculated on the basis of everyone's highest income for 35 years. Multiply the annual salary of these 35 years by an index related to the rising cost of living to get the converted annual salary of that year. This index is different from year to year, that is, the national average wage of the beneficiary at the age of 60 divided by the national average wage of each year.