En español | You can. But if you work and you’re younger than full retirement age, Social Security will deduct $1 from your benefits for each $2 you earn above the annual limit ($17,040 in 2018). In the year you reach full retirement age, a different formula applies. If you make more than $45,360 in the months before your birthday, your benefits will be reduced $1 for every $3 earned above that level. After that, your benefits will not be reduced--you can earn as much as you can without any effect on your check. Your benefit may also be increased above their original level if in any of your years of work after you began receiving benefits is more than your income in any of your 35 years of work before you started benefits.