Social Security gets the bulk of its funding from payroll tax revenue. This means that while you may not enjoy losing a portion of your paycheck to Social Security taxes, it's also an essential tax to pay, as it helps to ensure the program's long-term viability.

Now some people pay Social Security taxes on their income all year long. But if you're a higher earner, it may be that you've satisfied your Social Security tax obligation for 2024 already. Here's why.

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You may have already hit the wage cap

Each year, there's a wage cap put in place that determines how much income is taxed for Social Security purposes. This year's wage cap is $168,600, so earnings beyond that point aren't subject to Social Security taxes.

Even if you're a higher earner, it might take until closer to the end of the year for you to finish paying Social Security taxes on your income. But if you're a very high earner, it may be that you've already earned $168,600 or more in 2024, and as such, are done paying taxes for the year.

Also, some people work in industries that pay robust bonuses. And some bonuses are paid out during the early months of the year.

So let's say that on top of a generous salary, you received an $80,000 bonus in February. Since bonuses are typically taxed for Social Security purposes just like ordinary wages, it's conceivable that a large bonus may have pushed you over the threshold where you're no longer paying into Social Security from this point onward in 2024.

Will lawmakers lift or eliminate the wage cap in time?

Many have argued for years that the current system of taxing Social Security isn't fair. The thought is that higher earners should not be let off the hook in the context of paying taxes on all of their wages, and that it's not fair that someone earning $168,600 and someone earning $8 million a year effectively pay the same amount of Social Security tax.

It's possible that in time, we could see Social Security's wage cap raised or even eliminated completely -- especially given that the program is facing a financial shortfall that could result in substantial benefit cuts down the line. Since lawmakers have to try to do something to prevent cuts from happening, raising taxes on higher earners might read like a good solution.

The question in that case, however, will be whether lawmakers also agree to raise Social Security's maximum benefit. See, just as workers don't pay Social Security taxes on earnings beyond $168,600 this year, earnings beyond $168,600 also aren't counted toward future retirement benefits.

This year, for example, the maximum Social Security benefit at full retirement age is $3,822 per month. But a reason the maximum benefit isn't higher is that millionaires, for example, don't have all of their earnings counted in their Social Security benefits calculations -- only wages up to each year's cap count.

If lawmakers are invested in keeping things equitable, they may have to raise Social Security's maximum monthly benefit in conjunction with raising the wage cap. That might read like a better system on paper. But it may not do much or any good for the program's finances.

As such, it's questionable as to whether we'll see lawmakers do away with the Social Security wage cap. But for now, if you've already earned $168,600 or more in 2024, you can rest assured that you're done paying Social Security taxes on your income. You're not necessarily done paying federal taxes, though, so don't expect to take home your wages in their entirety.