History of Federal Income Tax Brackets
From 7% in 1913 to 94% during WWII and back to 37% today — how America's tax rates have shaped retirement planning for over a century.
Top Marginal Tax Rate (1913–2026)
The top marginal rate applies only to income above the highest threshold — not all income.
Tax Rate Eras
Income tax introduced with 16th Amendment. Rates skyrocketed to fund WWI.
Treasury Secretary Andrew Mellon slashed rates, arguing lower rates would increase revenue.
Rates climbed to fund the New Deal and WWII. The 94% rate in 1944 is the highest in US history.
Top rate stayed at 91% for nearly two decades. Applied to income over ~$200K (about $2M in today's dollars).
JFK proposed cutting the top rate from 91% to 65%. LBJ signed it at 70% in 1964.
The most dramatic cuts in history. Top rate fell from 70% to 28% — the lowest since 1931.
Raised top rate to 39.6%. Combined with spending restraint, produced budget surpluses.
Cut top rate to 35%. Extended multiple times. Contributed to rising deficits.
Obama restored 39.6% for high earners. Trump's 2017 TCJA cut it to 37% (expires 2025).
Bracket Lookup by Year
| Rate | Single Filer Starts At | Married Filing Jointly Starts At |
|---|---|---|
| 10% | $0 | $0 |
| 15% | $9,325 | $18,650 |
| 25% | $37,950 | $75,900 |
| 28% | $91,900 | $153,100 |
| 33% | $191,650 | $233,350 |
| 35% | $416,700 | $416,700 |
| 39.6% | $418,400 | $470,700 |
Standard Deduction & Child Tax Credit History
| Year | Single | Married | Child Credit |
|---|---|---|---|
| 2005 | $5,000 | $10,000 | $1,000 |
| 2006 | $5,150 | $10,300 | $1,000 |
| 2007 | $5,350 | $10,700 | $1,000 |
| 2008 | $5,450 | $10,900 | $1,000 |
| 2009 | $5,700 | $11,400 | $1,000 |
| 2010 | $5,700 | $11,400 | $1,000 |
| 2011 | $5,800 | $11,600 | $1,000 |
| 2012 | $5,950 | $11,900 | $1,000 |
| 2013 | $6,100 | $12,200 | $1,000 |
| 2014 | $6,200 | $12,400 | $1,000 |
| 2015 | $6,300 | $12,600 | $1,000 |
| 2016 | $6,300 | $12,600 | $1,000 |
| 2017 | $6,350 | $12,700 | $1,000 |
| 2018 * | $12,000 | $24,000 | $2,000 |
| 2019 | $12,200 | $24,400 | $2,000 |
| 2020 | $12,400 | $24,800 | $2,000 |
| 2021 | $12,550 | $25,100 | $3,600 |
| 2022 | $12,950 | $25,900 | $2,000 |
| 2023 | $13,850 | $27,700 | $2,000 |
| 2024 | $14,600 | $29,200 | $2,000 |
| 2025 | $15,000 | $30,000 | $2,000 |
| 2026 | $15,000 | $30,000 | $2,000 |
* 2018: TCJA nearly doubled the standard deduction and increased child tax credit from $1,000 to $2,000.
Key Insights for Retirement Planning
Marginal vs Effective Rate
Even when the top rate was 91%, nobody paid 91% on all their income. The effective rate for top earners was typically 40-50% due to deductions and the progressive structure.
Roth vs Traditional
If you believe tax rates will rise in the future (they're historically low now), Roth accounts let you pay today's lower rates. Use our Roth conversion calculator to model this.
TCJA Expiration (2025)
The 2017 Tax Cuts and Jobs Act expires after 2025. Without extension, the top rate reverts to 39.6% and brackets narrow — potentially increasing taxes for many retirees.
Retirement Withdrawal Strategy
In retirement, you control your taxable income. Withdraw just enough to fill lower brackets, then use Roth funds for the rest. Plan this with our retirement calculator.
Historical Context
The federal income tax was established in 1913 with the ratification of the 16th Amendment. The initial top rate of 7% applied to income over $500,000 (approximately $15 million in today's dollars). Within five years, World War I pushed the top rate to 77%.
The most dramatic period was 1944–1963, when the top marginal rate exceeded 90%. However, this rate applied to income above approximately $200,000 — equivalent to over $2 million today. The effective tax rate for the wealthiest Americans during this period was typically 40-50% due to extensive deductions, exemptions, and tax shelters that no longer exist.
The Reagan-era tax reforms of 1986 represent the most significant structural change: the number of brackets was reduced from 15 to just 2 (later expanded to the current 7), and the top rate fell from 50% to 28%. This was paired with the elimination of many deductions and loopholes.
Today's 37% top rate is historically low. For retirement planning, this suggests that current Roth conversion opportunities may be especially valuable — you're paying taxes at rates that are lower than most of the past century.
Plan Your Tax-Efficient Retirement
Use our free calculator to model different withdrawal strategies and see how tax brackets affect your retirement income.