What? Eliminate Taxes on Social Security Benefits?

Jan 15, 2025 / By Elaine Floyd, CFP ®
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Who doesn’t want lower taxes? But think twice about proposals to eliminate taxes on Social Security benefits. Our expert points out that cutting those taxes could threaten future Social Security benefits.

During his campaign, Donald Trump promised to end taxes on Social Security benefits. This would seem like a welcome relief for your retired clients who have enough other income to cause them to pay federal income tax on 85% of their benefits.

But when you consider the impact on the Social Security trust fund, the proposal may not be so great.

Income taxes on benefits added about $50 billion to the trust fund last year. Without that income—and with the loss of payroll taxes arising from other Trump proposals, Social Security’s finances would worsen and could threaten future benefit amounts.

Trump promised not to cut Social Security benefits, but if his proposals would accelerate already-projected cuts and compress the timeline in which Congress must act to restore solvency to the system, clients will be nervous at best, and possibly worse off financially.

The ones who will make out the best are those who already pay tax on 85% of their benefits, are in a high tax bracket, and whose tax and benefit cuts (if it comes to that) end up in a net wash. Worse off will be those who have managed to avoid or minimize taxes on their benefits, either through smart tax planning or an unfortunate lack of resources, who won’t be taking full advantage of the tax cut, and will face the same benefit cuts (if it comes to that).

Figuring your tax

Recently the IRS helpfully released this Notice 703: Read This to See if Your Social Security Benefits May be Taxable. This form doesn’t figure the tax itself, but is the first step in determining if your benefits might be subject to income tax.

All you do is take your total Social Security income (line A), multiply it by .50 (line B), add all your taxable income, not reduced by deductions or exclusions (line C), plus municipal bond interest (line D), and put the total on line E. Then compare the amount on line E to the base amount for your filing status: Single, head of household or qualifying surviving spouse $25,000; married filing jointly $32,000; married filing separately zero. If the amount on line E exceeds these thresholds, part of your benefits will be taxable.

Determination of the actual tax is more complicated. That worksheet can be found in IRS Publication 915, or your tax software or at the hand of your tax preparer. What’s tricky is the “up to” provision of either the 50% or 85% of benefits subject to tax.

Anyone who is marginally over the threshold will pay tax on just the amount by which provisional income exceeds the threshold. See Chapter 8 of Horsesmouth’s Financial Advisor’s Guide to Savvy Social Security Planning for examples.

Because these base amounts were never adjusted for inflation, many of your clients’ provisional income will be well over their respective base amounts and they will be reporting 85% of their Social Security benefits as ordinary income on their tax returns. These are the ones who will be helped the most by Trump’s proposal—if it passes.

What about the trust fund?

The Committee for a Responsible Federal Budget (CRFB) has analyzed the effects of Trump’s proposals and found that they would widen Social Security’s cash deficits.

In its report What Would the Trump Campaign Plans Mean for Social Security? it found that Trump’s agenda would:

  • Increase Social Security’s 10-year cash shortfall by $2.3 trillion through FY 2035.
  • Advance insolvency by three years, from FY 2034 to FY 2031—hastening the next president’s insolvency timeline by one-third.
  • Lead to a 33% across-the-board benefit cut in 2035, up from the 23% Congressional Budget Office projects under current law.
  • Increase Social Security’s annual shortfall by roughly 50% in FY 2035, from 3.6% to 4% of payroll.
  • Require the equivalent of reducing current law benefits by about one-third or increasing revenue by about one-half to restore 75-year solvency.

Proposals from President-elect Trump that would weaken Social Security’s finances include:

  • Ending taxation of Social Security benefits, which would eliminate a revenue stream currently used to help finance Social Security.
  • Ending all taxes on overtime pay and tips, which would reduce payroll tax collection accruing to the Social Security trust funds.
  • Imposing large tariffs on imports, which would either increase cost-of-living adjustments (COLAs) through higher inflation or reduce taxable payroll.
  • Enhancing border security and deporting unauthorized immigrants, which would reduce the number of immigrant workers paying into the Social Security trust funds.

These proposals would also affect Medicare. An earlier analysis, in July, which dealt only with the elimination of taxes on Social Security benefits, the CRFB found that the HI (Part A) trust fund would run out six years earlier than current projections.

Realistically, these measures are not likely to pass Congress. Any changes to Social Security would require at least 60 votes in the Senate, and Republicans have just 49 seats. Republicans tend not to vote for measures that increase deficits anyway.

We may have to chalk this proposal up to a campaign promise that may have gotten Trump some votes but isn’t workable in the end. At least it brings attention to Social Security’s finances and will maybe ignite some interest among members of the new 118th Congress in finally getting it fixed.

As director of retirement and life planning for Horsesmouth, Elaine Floyd helps advisors better serve their clients by understanding the practical and technical aspects of retirement income planning. A former wirehouse broker, she earned her CFP designation in 1986.

Comments

The fact that the thresholds at which Social Security begins to be taxed ($25K & $32K) have never been indexed to inflation is one of the most egregious aspects of tax law. Since the 80's, an ever-increasing number of seniors have been inflated into an ever-growing tax burden. Adjusted for inflation since the 80’s, these levels would be tripled and lower-middle and middle income taxpayers would not be exposed to marginal tax rates they are not otherwise meant to pay. This concept is clearly followed in many, many other aspects of tax law such as the standard deductions & income tax brackets to name just two. Clearly steps need to be taken to protect the Social Security benefits we've all paid in to receive. If it is not feasible to eliminate this tax entirely, at a minimum, these thresholds need to be adjusted, retroactively, for inflation. This measure should not be viewed as problematic because it would "accelerate" the day of reckoning for the sustainability the Social Security system. Rather it is a correction of the corrosive effect this added tax has had for almost 40 years and is a far greater problem than the WEP/GPO issue that was just addressed. The impact of adjustments to the Social Security system to increase sustainability should not be borne disproportionately by lower income taxpayers.
I very much agree with Michael F. I thought I was reading a piece from CNN. Perhaps eliminating taxes on Social Security benefits would bring to a head sooner the obvious need to permanently address the overly delayed issue of the Trust Fund solvency. With all due respect, this is the elephant in the room. Much needed recent elimination of the WEP and GPO provisions likewise bring the solvency of the system into question sooner. Let's pressure Congress to step up and put an end to this growing uncertainty and anxiety.
This article seems like more of a political "knock" on President Elect Trump more than anything else. All politicians say things on the campaign trail that don't end up becoming policy. President Biden talks non stop about "Bidennomics" and how successful it was. Ask people on the street how they are doing and how Bidennomics has helped them. You may not hear the same stories that the president bragged about. People in our country have been hurting from the crushing inflation we have experienced over the last 4 years because out of control spending by the current administration. Normally I enjoy your articles. I hope you make them non political in the future.
I wish I could avoid politics, but Social Security is a political issue. Politicians (i.e., Congress and the president) created it and they have the ability to change it. It is my responsibility to report on potential changes to the system and what their short-term and long-term effects might be. This is so you can respond to your clients' questions and serve as an informed resource on all things Social Security. I am not here to talk about Bidenomics, inflation, government spending, or anything else that doesn't have a direct impact on Social Security. I believe this article stuck to that mission. I will continue to report on proposals put forth by politicians because your clients want to know how their retirement income will be affected, including the taxes thereon (or in this case lack of them). Thank you for expressing your opinion.
Trump is a very smart man! Trust that he will get input from advisors to make it work! Has to be better than the damage the Biden administration did!

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