Growing Income Inequality Is Putting More Pressure on Social Security

For years, experts have blamed America’s ageing population and lower birth rates for the financial challenges facing Social Security. With fewer workers supporting a growing number of retirees, the programme has been expected to face funding difficulties.

However, economists and policy experts now argue that rising income inequality has become another major factor weakening Social Security’s finances.

As the earnings of the highest-paid Americans continue to grow much faster than those of middle- and lower-income workers, a larger share of national wages is escaping Social Security payroll taxes. This trend is reducing the programme’s revenue and increasing concerns about its long-term sustainability.

Why Social Security Is Facing Financial Trouble

Social Security is primarily funded through payroll taxes paid by workers and employers.

However, there is an annual earnings limit on which these taxes apply. In 2025, that taxable maximum stands at $184,500. Any income earned above that amount is not subject to Social Security payroll taxes.

As executive salaries and high-income earnings have risen dramatically over the past several decades, an increasing amount of income is falling above this tax cap.

This means:

• More wealth is concentrated among top earners.
• A growing share of wages is not taxed for Social Security.
• The programme collects less revenue than expected.

According to the latest Social Security Trustees Report, the percentage of national wages subject to Social Security taxes has declined significantly.

Declining Taxable Wage Share

• 1984: Nearly 87% of all U.S. wages were subject to Social Security taxes.
• Today: Only around 83% of wages are taxed.

Experts say this decline is largely due to faster wage growth among high-income workers.

Experts Say the Economy Has Changed Faster Than Social Security Rules

Elizabeth Wilkins, Chief Executive Officer of the Roosevelt Institute, believes the programme has not kept pace with today’s economic reality.

According to Wilkins:

“The Social Security trust fund is under strain because Congress has failed to update the programme for the economy we actually have. Too much income now flows to the top, where it escapes Social Security taxation.”

Her comments highlight a growing debate over whether the current payroll tax system remains fair and effective.

Social Security Could Run Out of Full Funding by 2032

The latest trustees’ report projects that Social Security’s trust fund could become insolvent by the end of 2032 if no legislative changes are made.

If that happens:

• Around 70 million Americans who receive benefits could be affected.
• Monthly benefit payments would automatically be reduced by approximately 22%.
• The average recipient could lose roughly $500 per month.

For millions of retirees, disabled individuals and surviving family members, such reductions could create serious financial hardship.

Millions of Americans Depend on Social Security

Social Security is one of the largest public benefit programmes in the United States.

It provides financial support to:

• Retired workers
• Disabled Americans
• Widows and widowers
• Children of deceased workers
• Eligible family members

Many beneficiaries rely on these monthly payments as their primary source of income, making any reduction particularly significant.

How Income Inequality Has Changed Since the 1980s

The United States has faced Social Security funding concerns before.

During the early 1980s, the programme approached insolvency because of economic challenges, prompting Congress to introduce major reforms in 1983.

Those reforms included:

• Gradually increasing the retirement age
• Raising payroll tax rates
• Adjusting various programme rules

However, while the payroll tax cap has been updated annually for inflation, it was not redesigned to reflect long-term changes in wage distribution.

Forecasts Did Not Predict Today’s Income Gap

According to a January analysis by the Roosevelt Institute, policymakers in the 1980s expected wage growth to remain relatively balanced across income groups.

Their projections assumed that Social Security would continue taxing approximately 87% of all national wages for the next 75 years.

Instead, income inequality expanded dramatically.

Wage Growth Comparison (1983–2000)

The Roosevelt Institute found that:

Top 6% of Workers

• Real earnings increased by 62%

Remaining 94% of Workers

• Average real earnings increased by only 17%

Because high-income workers experienced much faster salary growth, a greater share of total wages now sits above the taxable earnings limit.

The organisation argues that the Social Security trust fund has been “inadvertently starved of necessary revenue” for decades.

Removing the Payroll Tax Cap: A Popular Reform Proposal

One of the most widely discussed solutions is eliminating or gradually increasing the Social Security payroll tax cap.

Supporters argue that asking wealthier Americans to contribute payroll taxes on more of their earnings would significantly strengthen the programme.

Possible Reform Options

Policy proposals include:

1. Eliminate the Tax Cap Entirely

Every dollar earned would be subject to Social Security payroll taxes, regardless of income.

2. Gradually Phase Out the Cap

The taxable earnings limit would slowly increase over several years until it eventually disappears.

3. Create a “Donut Hole”

Under this proposal:

• Earnings between $184,500 and $250,000 would remain exempt from payroll taxes.
• Payroll taxes would resume on income above a higher threshold, such as $400,000.

This approach aims to increase contributions from very high earners while limiting the impact on upper-middle-income workers.

How Much Could These Changes Help?

According to estimates evaluated by the Social Security Administration:

• Removing or phasing out the payroll tax cap could eliminate between 22% and 67% of the programme’s long-term funding shortfall.

Although this would not completely solve the financial challenge, experts say it would significantly improve the system’s stability.

Automatic Revenue Adjustments Could Be Another Solution

The Roosevelt Institute has also suggested creating automatic safeguards.

Under such a system:

• If the percentage of wages subject to Social Security taxes falls below 87%, the taxable earnings limit would automatically adjust upward.
• This would ensure that the programme continues collecting payroll taxes on a consistent share of national wages without requiring new legislation.

Supporters say this approach would allow Social Security to adapt automatically as the labour market evolves.

Most Americans Prefer Protecting Benefits

Consumer advocacy groups argue that benefit reductions should be avoided whenever possible.

Joel Eskovitz, Senior Director of Social Security and Savings at the AARP Public Policy Institute, recently emphasised that Americans want lawmakers to strengthen the programme rather than reduce payments.

He stated:

“Social Security is a very strong programme that can be fixed. Most Americans want it to be fixed by not cutting benefits.”

Key Takeaways

• Rising income inequality is becoming a major factor behind Social Security’s funding challenges.
• Only earnings up to $184,500 are currently subject to Social Security payroll taxes.
• The share of taxable wages has fallen from nearly 87% in 1984 to about 83% today.
• Without reforms, the Social Security trust fund could become insolvent by 2032.
• Millions of beneficiaries could face an estimated 22% reduction in monthly payments.
• Eliminating or increasing the payroll tax cap is one of the leading proposals for improving the programme’s finances.

Sources

• Social Security Trustees Report
• Roosevelt Institute Report on Social Security Funding and Income Inequality
• Social Security Administration Policy Analyses
• AARP Public Policy Institute statements on Social Security reform

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