2025 Ssi Rates. The oasdi tax rate for wages paid in 2025 is set by statute at 6.2 percent for employees and employers, each. Ssi/ssp rates effective january 1, 2025.
2025 social security & medicare tax rates. Social security benefits and supplemental security income (ssi) payments for more than 72.5 million americans will increase by 2.5% in 2025.