Where Do My Federal Tax Dollars Go?

Updated September 17, 2026

Quick Summary:

1. The Federal Spending Picture: The vast majority of your federal tax dollars fund three major categories: Mandatory Social Programs, Defense/Security, and Net Interest on the National Debt.
2. Core Spending Breakdown: Social Security (~22%), Healthcare/Medicare/Medicaid (~24%), National Defense (~13%), Net Interest on Debt (~13%), and Safety Net Programs (~8%).
3. Discretionary vs. Mandatory: Over two-thirds of federal spending is mandatory under existing law, leaving a smaller portion for discretionary budget debates.
4. Keep More of Your Dollars: Understanding tax policy reinforces why proactive tax planning, strategic deductions, and local CPA guidance are essential to keeping more of your hard-earned income.
5. Get Professional CPA Help: Contact STL Tax or call our South City office on Gravois Road at (314) 645-1614 to optimize your tax return and lower your overall tax bill.

Every tax season, St. Louis taxpayers fill out Form 1040, calculate their taxable income, and write checks or submit electronic payments to the Internal Revenue Service (IRS). Whether you work as an employee in Clayton, run a small business in Kirkwood, or manage rental properties in South City, paying federal income taxes is a major annual expense.

Have you ever paused to wonder: Where do those federal tax dollars actually go once they leave your bank account?

Understanding how the U.S. federal government allocates tax revenue provides valuable perspective on fiscal policy, budget debates, and economic trends. STL Tax breaks down where your tax dollars go and how local taxpayers can use legal strategies to lower their total tax bill.

1. The Major Allocations: Where the Money Goes

The federal budget is divided primarily into Mandatory Spending (programs required by law), Discretionary Spending (funded through annual congressional appropriations), and Net Interest on the national debt.

Here is how the federal government distributes every dollar collected in tax revenue:

2. Breaking Down the Major Spending Categories

A. Health Programs (Medicare & Medicaid): ~24%

Healthcare programs represent the single largest share of the federal budget. This funding supports:

1. Medicare: Health coverage for seniors aged 65 and older and certain individuals with disabilities.
2. Medicaid & CHIP: Joint federal and state health coverage for low-income families, nursing home care, and children’s health insurance.

B. Social Security: ~22%

Social Security provides monthly retirement income, disability payments, and survivor benefits to over 65 million Americans. It is funded primarily through FICA payroll taxes (Social Security and Medicare withholdings) paid by employees and self-employed individuals.

C. National Defense & Foreign Security: ~13%

Defense spending funds the U.S. Armed Forces, military operations, equipment procurement, cybersecurity, intelligence agencies, and defense research.

D. Net Interest on the National Debt: ~13%

As the national debt grows and interest rates fluctuate, servicing the debt requires a significant portion of federal tax revenue. Net interest represents payments made to individuals, corporations, foreign governments, and institutions holding U.S. Treasury bonds.

E. Safety Net Programs: ~8%

These programs provide temporary assistance to families experiencing financial hardship, including Supplemental Nutrition Assistance (SNAP), Earned Income Tax Credit (EITC), Child Tax Credits, supplemental security income, and housing assistance.

F. Veterans Benefits, Education, Infrastructure & Science: ~20%

The remaining portion of federal tax revenue covers:

1. Medical care and disability benefits for military veterans (~6%).
2. Federal highway, bridge, and transit funding (including Missouri infrastructure projects).
3. Public education, student aid, scientific research (NASA, NIH), space exploration, and federal law enforcement.

3. Federal Taxes vs. State and Local Taxes in St. Louis

It is important to distinguish between federal taxes and the state and local taxes you pay in Missouri:

1. Federal Income Taxes: Fund federal programs like defense, Social Security, and national infrastructure via the IRS.
2. Missouri State Income Tax: Funds state education, Missouri state highways, and state public safety programs administered by the Missouri Department of Revenue.
3. St. Louis City Earnings Tax: A 1% local tax on wages and business profits for individuals living or working in St. Louis City, administered by the St. Louis Collector of Revenue.
4. Local Sales & Property Taxes: Fund local school districts, St. Louis County/City emergency services, parks, and road maintenance.

4. How You Can Keep More of Your Tax Dollars

While you cannot control how Washington allocates federal tax dollars, you can control how much you pay in taxes by taking advantage of legal credits and deductions.

Working with a local Certified Public Accountant (CPA) ensures you aren’t overpaying your fair share.

Key Tax-Saving Strategies:

1. Maximize Retirement Contributions: Contributing to a Traditional IRA, 401(k), SEP-IRA, or Solo 401(k) lowers your Adjusted Gross Income (AGI) dollar-for-dollar.
2. Claim Small Business & Self-Employment Deductions: Write off vehicle mileage, home office expenses, software, equipment purchases (Section 179), and self-employed health insurance premiums.
3. Utilize Health Savings Accounts (HSAs): HSA contributions are 100% tax-deductible and grow tax-free when used for qualified medical expenses.
4. Leverage Local Credits: Take advantage of Missouri 529 education plan contributions, charitable tax credits, and local tax adjustments.

Optimize Your Federal and Local Tax Return with STL Tax

Don’t leave your financial future to chance or pay more than you legally owe. Partner with local tax professionals who help you keep more of your hard-earned money in your pocket.

At STL Tax, led by CPA James Coats, we specialize in individual tax preparation, small business tax filing, accounting services, and IRS tax resolution throughout Greater St. Louis.

Call our St. Louis office today at (314) 645-1614 or schedule your tax preparation consultation online.

James Coats Certified Public Accountant

Founder & Lead CPA, STL Tax James Coats is a Certified Public Accountant (CPA) and the founder of STL Tax. With over 15 years of professional experience across small businesses, Fortune 500 corporations, government agencies, and non-profit organizations, James brings comprehensive expertise to complex tax and accounting challenges. Based in the South County area of St. Louis, James takes a practical, hands-on approach to demystifying tax laws for individuals and business owners throughout the Greater St. Louis area.

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