Dear Liz: I decided to start taking Social Security benefits this summer when I turned 62. My monthly benefit is $1,809. My wife turned 62 at the end of last year and started her benefit of $841 a month. I just accepted an unexpected job offer that will pay me more than $130,000 a year. I suspect I should consider suspending my benefit at this point and work as many years with this company as possible. If I choose to suspend my benefits now and allow my benefits to remain suspended until my full retirement age of 66 years six months, I will pass up benefits of $112,000 over the next 4.5 years. Granted that amount will be overshadowed by the additional new income and the opportunity to contribute to a 401(k), but is it out of the question to continue my current benefit and just pay the 85% tax on the Social Security we receive each year in addition to our other income?

Answer: Social Security is complicated, so it’s not surprising that so many people get the details wrong. Unfortunately, those details can have a huge effect on financial well-being in retirement. The difference between the best claiming decisions and the worst can total more than $250,000, researchers have found.

Let’s start with the detail you need most: You don’t have the option right now of suspending your benefit. Only people who have reached their full retirement age can suspend. You can, however, withdraw an application within the first 12 months. You will have to pay back all the money you’ve received from Social Security, but then it will be as if you’d never applied. Your benefit can continue to grow by 5% to 8% each year until you restart your benefits or turn 70, whichever comes first.

Withdrawing your application is a good idea because otherwise your new job will offset all of your Social Security benefit.

Because you started Social Security early, you are subject to the earnings test and your benefit will be reduced by $1 for every $2 you earn over a certain limit, which in 2020 is $18,240. Your six-figure income would reduce your benefit to zero.

This earnings test disappears at full retirement age, and any money that was withheld because of it is added back into your benefit over time. In the meantime, however, you’ve given up the more valuable 5% to 8% growth in your benefit and reduced your survivor benefit as well.

Social Security taxation also works differently than what you’ve described. You never have to pay taxes equal to 85% of your benefit. If your income exceeds certain levels, then up to 85% of your benefit could be subject to taxation. (To illustrate, that means if you’re in the 10% federal tax bracket, you’d pay 10% on up to 85% of your benefit. It’s more complicated than that, but that may help you understand the difference between losing a huge chunk of your benefit and having to pay tax on a portion of it.)

Given all these complexities, it’s important for people to use a few Social Security claiming calculators before applying. Ideally, they also would consult a financial planner who’s been educated on Social Security claiming strategies.

Dear Liz: I have a friend who is in her early 70s and earns income from her own business but she said that she also collects Social Security. How is this possible? I thought that a person cannot earn income from a job or self-employment while also collecting Social Security. Am I wrong?

Answer: Quite wrong.

Nothing prevents people from working while receiving Social Security. If they’re receiving benefits before their full retirement age — which is currently 66 — their checks are subject to the earnings test. That test reduces the amount they receive by $1 for every $2 they earn over a certain limit, which in 2019 was $17,640.

Once people reach full retirement age, the earnings test goes away and they no longer have to worry about its effect on their checks.

Dear Liz: I’m a certified nurse midwife who is salaried. When we are fully staffed, I work 55 hours a week on average. If we cover extra shifts, we are paid a lump sum rather than hourly. (If we were paid hourly, it would work out to far less than minimum wage.) We are paid twice a month, but my pay stub shows that I only work 70 hours per pay period. I work almost that many hours in a single week! When I work extra shifts, it is reported on my check under “miscellaneous” with the lump sum listed. I asked our administrators about this and they just told me it wasn’t a big deal, but I’m not convinced that’s true. Do the hours reported on my paycheck affect my Social Security income later? I just don’t want to lose out on Social Security benefits when I work my butt off!

Answer: The hours you work don’t affect your future Social Security benefit, but your earnings do. At least they should. Your employer is supposed to report your full salary to Social Security, and to deduct the appropriate amount of Social Security tax from your paychecks. If your pay is underreported, your future benefits could be shortchanged.

Here’s a quick way to check if your earnings are being reported properly. On your paycheck, there should be a line that says either “Social Security,” “OASDI” or “FICA.” If the line says Social Security or FICA, the amount listed should be 6.2% of the money you earned for the pay period, up to a maximum annual amount of $8,239.80 for 2019. (There’s a ceiling on the amount of wages subject to Social Security taxes, which this year is $132,900.)

Some employers don’t break out Social Security taxes from Medicare taxes, and include them both in a line for FICA, which stands for Federal Insurance Contributions Act. The FICA amount should be your Social Security tax (6.2% of your earnings up to $132,900) plus 1.45% for Medicare. (There’s no cap, so all earnings are subject to the Medicare tax.)

If the tax amounts shown don’t include that “miscellaneous” lump sum, please call the IRS at 1-800-829-1040 to report the situation.