The 2026 U.S. 401(k) elective-deferral limit of $24,500 sits $3,922 above where the cap would stand had its 1987 starting value of $7,000 simply tracked consumer prices, meaning the deferral limit has pulled roughly 19 percent ahead of inflation over 39 years (Source: IRS Notice 2025-67; U.S. Bureau of Labor Statistics CPI-U, 2026; Q3 Advisors calculation).
Executive summary
- The 2026 U.S. 401(k) elective-deferral limit under IRC 402(g) is $24,500, which is $3,922 higher than the $20,578 the 1987 cap of $7,000 would equal if it had only kept pace with inflation to June 2026 (Source: IRS Notice 2025-67; BLS CPI-U; Q3 Advisors calculation).
- The 401(k) deferral limit has risen 250 percent in nominal terms from $7,000 in 1987 to $24,500 in 2026, a compound annual growth rate of 3.26 percent per year across 39 U.S. federal tax years (Source: IRS annual COLA news releases; IRS Notice 2025-67; Q3 Advisors calculation).
- In inflation-adjusted terms the same cap has grown only 0.45 percent per year, because most nominal growth replaced lost purchasing power rather than adding new shelter (Source: BLS CPI-U; Q3 Advisors calculation).
- The IRA contribution limit measured from its 1975 origin of $1,500 trails inflation by $1,811 in 2026, since the inflation-tracked figure would be $9,311 versus the actual $7,500 (Source: ERISA 1974; IRS Notice 2025-67; BLS CPI-U; Q3 Advisors calculation).
- Measured instead from the frozen 1982 value of $2,000, the 2026 IRA limit of $7,500 marginally exceeds inflation by $579, so the verdict on the IRA hinges entirely on the chosen inception year (Source: Economic Recovery Tax Act of 1981; BLS CPI-U; Q3 Advisors calculation).
- The real value of the 401(k) cap bottomed near $19,767 in constant 2026 dollars in 1997, below its 1987 real value of $20,578, before EGTRRA 2001 lifted it (Source: IRS annual COLA news releases; BLS CPI-U; Q3 Advisors calculation).
- Calendar year 2023 delivered the only single-year increase of $2,000 or more in the history of the U.S. 401(k) limit, a jump from $20,500 to $22,500, equal to 9.76 percent (Source: IRS cola-table.pdf).
- The 2026 combined employer-plus-employee annual-additions ceiling under IRC 415(c) is $72,000, the age-50 catch-up is $8,000, and the new SECURE 2.0 catch-up for ages 60 to 63 is $11,250 (Source: IRS Notice 2025-67).
Key findings
- The very first U.S. elective-deferral dollar cap under IRC 402(g) took effect in 1987 at $7,000, set by the Tax Reform Act of 1986 (Source: Pub.L. 99-514, sec.1105(a)).
- The enabling statute for the 401(k) itself was the Revenue Act of 1978, which added IRC 401(k) effective for U.S. plan years beginning in 1980, before any separate deferral dollar limit existed (Source: Revenue Act of 1978).
- From 1987 to 2026 the U.S. 401(k) deferral limit rose 250 percent nominally, from $7,000 to $24,500 (Source: IRS annual COLA news releases; IRS Notice 2025-67).
- The nominal compound annual growth rate of the deferral limit from 1987 to 2026 is 3.26 percent per year over 39 U.S. tax years (Source: Q3 Advisors calculation on IRS data).
- The 1987 cap of $7,000 equals $20,578 in June 2026 dollars, or $19,838 using the 2025 eleven-month average CPI-U (Source: BLS CPI-U; Q3 Advisors calculation).
- The U.S. 401(k) limit posted no year-over-year increase in at least four separate years between 1987 and 2006, specifically 1995, 1997, 1999, and 2001, because statutory rounding to the nearest $500 held it flat (Source: IRS annual COLA news releases; IRC 402(g)).
- The 2023 increase of $2,000 raised the limit from $20,500 to $22,500, a rise of 9.76 percent, the largest single-year dollar jump on record in the United States (Source: IRS cola-table.pdf).
- The 2026 U.S. total annual-additions limit under IRC 415(c) is $72,000, up from $40,000 in 2002 (Source: IRS cola-table.pdf; IRS Notice 2025-67).
- The age-50 catch-up under IRC 414(v) began in 2002 at $1,000 and reaches $8,000 in 2026 (Source: IRS cola-table.pdf; IRS Notice 2025-67).
- The SECURE 2.0 higher catch-up for U.S. savers aged 60 to 63 is $11,250 for 2026 (Source: IRS Notice 2025-67, anchor-provided).
- Across U.S. history the annual 401(k) limit has increased by $2,000 or more in a single year exactly once, in 2023 (Source: IRS cola-table.pdf; Q3 Advisors calculation).
- The average annual dollar increase in the U.S. 401(k) limit over the past decade, 2016 to 2026, is $650 per year, from $18,000 to $24,500 (Source: IRS cola-table.pdf; IRS Notice 2025-67; Q3 Advisors calculation).
- The IRA limit has risen 400 percent nominally since 1975, from $1,500 to $7,500 in 2026, yet still trails inflation from that 1975 base by $1,811 (Source: ERISA 1974; IRS Notice 2025-67; BLS CPI-U; Q3 Advisors calculation).
The metric and what it measures
This report addresses a question the raw statutory tables do not answer on their own: what is the U.S. 401(k) deferral cap actually worth once inflation is removed. Most published limit tables show the nominal figures from IRS notices without a constant-dollar layer. The proprietary metric here is the gap between the actual 2026 U.S. federal limit and the limit it would be had it tracked inflation from inception, computed for both the 401(k) and the IRA and reproducible from the formula below.
The formula is Inflation-tracked_2026 equals Inception_limit multiplied by (CPI_current divided by CPI_inception_year), and Gap equals Actual_2026_limit minus Inflation-tracked_2026 (Source: Q3 Advisors methodology). A positive gap means the statutory limit has outpaced inflation. A negative gap means it has fallen behind. The CPI-U deflator is the BLS all-items, U.S. city average, not seasonally adjusted series, base period 1982-84 equals 100 (Source: BLS series CUUR0000SA0).
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For the 401(k) the inception is unambiguous. The Tax Reform Act of 1986 set $7,000 for 1987, the first year a 402(g) dollar cap applied in the United States (Source: Pub.L. 99-514). The 1987 CPI-U annual average is 113.6, and the June 2026 CPI-U is 333.952 (Source: BLS series CUUR0000SA0, verified against the BLS Consumer Price Index release for June 2026). The tracked value is 7,000 times 333.952 divided by 113.6, which equals $20,578, so the gap against the actual $24,500 is a positive $3,922. Using the 2025 eleven-month average CPI-U of 321.943 instead, the tracked value is $19,838 and the gap widens to $4,662. That 321.943 figure is the mean of the eleven published 2025 monthly CPI-U readings for the series; the October 2025 CPI was cancelled during the 2025 U.S. federal government shutdown and never released, so no official full-year 2025 average exists (Source: BLS).
The full 40-year data table
The table below is the citable asset. It restates every verified year of the U.S. 401(k) elective-deferral limit in both nominal dollars and constant June 2026 dollars, alongside the contemporaneous IRA limit. Real values are computed as nominal multiplied by 333.952 divided by that year’s annual-average CPI-U, using the 2025 eleven-month average for the 2025 row (Source: IRS annual cost-of-living-adjustment news releases; IRS Retirement-Items COLA table for the years it covers; IRS Notice 2025-67; BLS CPI-U; Q3 Advisors calculation). The pre-2000 402(g) rows trace to the governing annual IRS COLA news releases and the statutory indexing rule of IRC 402(g) rather than to the recent Retirement-Items COLA table, which does not extend back that far. The 1988 ($7,313) and 1990 ($7,979) 402(g) values, though documented in IRS historical guidance, are omitted here because they do not appear in the specific primary tables relied on for this series; they are excluded as a conservative integrity choice, not treated as unverifiable.
| Year | 401(k) 402(g) nominal | 401(k) in 2026 dollars | IRA nominal |
|---|---|---|---|
| 1987 | $7,000 | $20,578 | $2,000 |
| 1989 | $7,627 | $20,541 | $2,000 |
| 1991 | $8,475 | $20,780 | $2,000 |
| 1992 | $8,728 | $20,775 | $2,000 |
| 1993 | $8,994 | $20,786 | $2,000 |
| 1994 | $9,240 | $20,821 | $2,000 |
| 1995 | $9,240 | $20,247 | $2,000 |
| 1996 | $9,500 | $20,220 | $2,000 |
| 1997 | $9,500 | $19,767 | $2,000 |
| 1998 | $10,000 | $20,488 | $2,000 |
| 1999 | $10,000 | $20,045 | $2,000 |
| 2000 | $10,500 | $20,363 | $2,000 |
| 2001 | $10,500 | $19,800 | $2,000 |
| 2002 | $11,000 | $20,420 | $3,000 |
| 2003 | $12,000 | $21,779 | $3,000 |
| 2004 | $13,000 | $22,982 | $3,000 |
| 2005 | $14,000 | $23,939 | $4,000 |
| 2006 | $15,000 | $24,848 | $4,000 |
| 2007 | $15,500 | $24,965 | $4,000 |
| 2008 | $15,500 | $24,042 | $5,000 |
| 2009 | $16,500 | $25,684 | $5,000 |
| 2010 | $16,500 | $25,270 | $5,000 |
| 2011 | $16,500 | $24,496 | $5,000 |
| 2012 | $17,000 | $24,727 | $5,000 |
| 2013 | $17,500 | $25,087 | $5,500 |
| 2014 | $17,500 | $24,686 | $5,500 |
| 2015 | $18,000 | $25,362 | $5,500 |
| 2016 | $18,000 | $25,046 | $5,500 |
| 2017 | $18,000 | $24,523 | $5,500 |
| 2018 | $18,500 | $24,604 | $5,500 |
| 2019 | $19,000 | $24,819 | $6,000 |
| 2020 | $19,500 | $25,161 | $6,000 |
| 2021 | $19,500 | $24,032 | $6,000 |
| 2022 | $20,500 | $23,393 | $6,000 |
| 2023 | $22,500 | $24,660 | $6,500 |
| 2024 | $23,000 | $24,486 | $7,000 |
| 2025 | $23,500 | $24,377 | $7,000 |
| 2026 | $24,500 | $24,500 | $7,500 |
The real column tells the story the nominal column hides. The purchasing power of the 401(k) cap held near $20,000 to $21,000 in 2026 dollars through the late 1980s and 1990s, dipped to a low of $19,767 in 1997, then climbed above $25,000 during 2009 to 2015 after EGTRRA 2001 introduced scheduled step-ups. Savers planning around these limits often pair them with a broader tax strategy, including a Roth conversion in lower-income years.
What drives the numbers
Two statutory mechanics explain almost every feature of the series. First, IRC 402(g) is indexed to CPI-U for the quarter ending September 30 of the prior year, then rounded down to the nearest $500 (Source: IRS methodology). That rounding is why the U.S. limit sat flat in 1995, 1997, 1999, and 2001 even as prices rose, and why it moves in visible $500 steps rather than smoothly. Second, the IRA cap was a flat, unindexed statutory number for decades.
The IRA limit was $1,500 from 1975 to 1981 under ERISA 1974, then $2,000 from 1982 to 2001 under the Economic Recovery Tax Act of 1981, a span of roughly 20 years with no inflation adjustment at all (Source: Pub.L. 93-406; Pub.L. 97-34). EGTRRA 2001 restarted the schedule at $3,000 for 2002 and added indexing, which is why the modern IRA limit rises only in $500 increments (Source: Pub.L. 107-16). This long freeze is the single reason the IRA trails inflation when measured from 1975.
The 401(k) avoided that fate because it carried statutory indexing from inception, and because EGTRRA 2001 layered scheduled dollar increases on top through 2006. That combination pushed the deferral cap ahead of inflation. The distributions savers eventually take from these accounts then interact with required minimum distributions in 2026 and with Medicare IRMAA brackets, which is why front-loading tax-advantaged savings has downstream planning effects.
The IRA, and why the inception year decides the verdict
The IRA gap is the clearest case of methodology driving the answer. Measured from the 1975 origin of $1,500, the inflation-tracked 2026 value is 1,500 times 333.952 divided by 53.8, which equals $9,311, so the actual $7,500 limit falls short by $1,811 (Source: BLS CPI-U; Q3 Advisors calculation). Measured from the frozen 1982 value of $2,000, the tracked value is 2,000 times 333.952 divided by 96.5, which equals $6,921, so the actual $7,500 now exceeds inflation by $579.
Both statements are true and both are sourced. The 1975 framing captures the full erosion of the multi-decade freeze. The 1982 framing starts the clock after the last statutory increase before the freeze. Any citable claim about the IRA must state its inception year, which is why this report reports both rather than choosing one. For readers weighing how much to move into Roth accounts, the interaction of these caps with tax brackets is covered in how much to convert to Roth.
Catch-ups and the 2026 combined ceiling
The age-50 catch-up under IRC 414(v) first applied in U.S. tax year 2002 at $1,000 and rises to $8,000 for 2026 (Source: IRS cola-table.pdf; IRS Notice 2025-67). SECURE 2.0 adds a higher catch-up for savers aged 60 to 63 of $11,250 for 2026 (Source: IRS Notice 2025-67, anchor-provided). A 62-year-old U.S. saver in 2026 could therefore defer $24,500 plus $11,250, for $35,750 in elective deferrals.
The overall annual-additions limit under IRC 415(c), which caps combined employee and employer contributions, is $72,000 for 2026, up from $40,000 in 2002 (Source: IRS cola-table.pdf; IRS Notice 2025-67). The 2026 IRA age-50 catch-up is confirmed at $1,000 for 2024 and 2025 in the IRS table; a possible SECURE 2.0 indexed figure of $1,100 was not confirmed against the notice text in this run and is excluded (Source: IRS cola-table.pdf). Readers modeling multi-year contribution and conversion sequences may find the 2026 retirement contribution limits overview useful.
Original synthesis
Insight 1: The real limit CAGR, or the purchasing-power gap
Logic and formula: nominal CAGR equals (24,500 divided by 7,000) to the power of (1 divided by 39) minus 1, which is 3.26 percent. Real CAGR converts each endpoint to constant dollars first, so it equals (24,500 divided by 20,578) to the power of (1 divided by 39) minus 1, which is 0.45 percent (Source: IRS data; BLS CPI-U; Q3 Advisors calculation). Inputs are the 1987 and 2026 nominal U.S. limits and the 1987 and June 2026 CPI-U values. The finding is that most of the deferral cap’s nominal growth since 1987 replaced lost purchasing power rather than expanding real shelter. On the dollar basis this reproduces from the figures shown: of the $17,500 nominal increase ($7,000 to $24,500), $13,578 ($7,000 to the inflation-tracked $20,578) merely replaced inflation while $3,922 added real shelter, so the inflation-replacement share is 13,578 divided by 17,500, or about 78 percent. Stated instead on a compound-rate basis, the same idea is 1 minus the real CAGR divided by the nominal CAGR, or 1 minus 0.45 divided by 3.26, which is about 86 percent; the two figures differ because one weights dollars and the other weights compound growth rates, and this report leads with the 78 percent dollar basis because it reproduces directly from the shown endpoints. Limitation: the real CAGR depends on the deflator choice, and using the 2025 eleven-month average rather than June 2026 raises it modestly.
Insight 2: The inflation gap, dual-anchored
Logic and formula: Gap equals Actual_2026 minus Inception times (CPI_current divided by CPI_inception). For the 401(k) from 1987 the gap is a positive $3,922 on the June 2026 deflator and a positive $4,662 on the 2025 average. For the IRA the gap is a negative $1,811 from 1975 but a positive $579 from 1982 (Source: statutes cited; BLS CPI-U; Q3 Advisors calculation). The finding is a single directional claim: the U.S. federal 401(k) cap has outpaced inflation while the U.S. IRA cap, measured from its true 1975 origin, has not. Limitation: statutory rounding and the Q3-prior-year CPI basis mean a smooth CPI path will not reproduce the discrete steps exactly.
Insight 3: The real-value trough and recovery
Logic: restate every year of the U.S. federal 402(g) series in constant 2026 dollars and locate the minimum. The real value fell to $19,767 in 1997, below the 1987 real value of $20,578, then peaked at $25,684 in 2009 (Source: IRS annual COLA news releases; BLS CPI-U; Q3 Advisors calculation). Inputs are the full nominal series and annual-average CPI-U. The finding is that the deferral cap lost real ground for roughly a decade before EGTRRA 2001 reversed it, so the pre-2002 saver faced a shrinking real limit. Limitation: 2026 is deflated by a partial-year June figure because the 2026 annual average is not yet computable.
A note on the Limit-to-Median-Wage ratio
The planned second index, the deferral cap as a share of the typical U.S. salary, is not computed here. The verified evidence base for this report did not include a median-wage or SSA National Average Wage Index series, and data integrity rules prohibit introducing unverified figures. The appropriate primary source would be the SSA Average Wage Index. This ratio is flagged as a data limitation rather than estimated, and should be added only once wage data is sourced to a primary series.
Figures
Methodology
Source-selection criteria: every retained figure traces to a Tier 1 primary source, defined as U.S. federal statute, an IRS notice or news release, or a BLS series. The pre-2000 402(g) limits trace to the governing annual IRS cost-of-living-adjustment news releases and the statutory indexing rule of IRC 402(g); the IRS “Cost-of-Living Adjustments for Retirement Items” table (cola-table.pdf), extracted via pdftotext, was used for the years it in fact covers (roughly 2000 forward), including the 402(g), IRA, 415(c), and catch-up rows in that range. The 2026 values come from IRS Notice 2025-67. The 1987 402(g) value comes from the Tax Reform Act of 1986. The IRA 1975 and 1982 values come from ERISA 1974 and the Economic Recovery Tax Act of 1981. The CPI-U deflator is BLS series CUUR0000SA0 (all items, U.S. city average, not seasonally adjusted); annual-average (period M13) figures are used for each prior year, June 2026 (333.952) is used for the current-year deflator, and the 2025 figure (321.943) is the mean of the eleven published 2025 monthly readings because the October 2025 CPI was cancelled during the U.S. federal government shutdown and never released, leaving no official M13 average for 2025. The June 2026 value of 333.952 was verified against the BLS Consumer Price Index release for June 2026.
Inclusion and exclusion rules: a figure was retained only if confirmed in the IRS table or a statute. The commonly cited 1988 402(g) figure of $7,313 and the 1990 figure of $7,979 are documented in IRS historical guidance but do not appear in the specific primary tables relied on here; they are omitted as a conservative integrity choice so that every retained row ties to the exact primary source used, not because the figures are unverifiable. Handling of conflicts: where aggregators disagreed with the IRS table, the IRS table governed. Estimates: the only computed values are the constant-dollar restatements and the gap and CAGR metrics, each shown with its formula and inputs above.
Data limitations: the 2026 annual-average CPI-U is not yet available because the year is incomplete, so June 2026 (333.952) or the 2025 eleven-month average (321.943) is used and stated at each point. The 2025 figure is itself an eleven-month mean because the October 2025 CPI was cancelled during the U.S. federal government shutdown and never released. Statutory COLA rounds to the nearest or downward $500 and uses prior-year Q3 CPI, so a smooth CPI series will not reproduce the discrete steps. This report uses CPI-U as specified; the IRS has applied chained C-CPI-U to many post-2018 COLAs under TCJA, which would yield a slightly lower tracked value and a slightly larger positive 401(k) gap. Date of last update: July 2026.
Source quality ranking
Tier 1, primary government and statute. IRS annual cost-of-living-adjustment news releases (the primary source for the pre-2000 402(g) rows); IRS “Cost-of-Living Adjustments for Retirement Items” (cola-table.pdf, used for the years it covers, roughly 2000 forward); IRS Notice 2025-67; U.S. Bureau of Labor Statistics CPI-U series CUUR0000SA0; Tax Reform Act of 1986 (Pub.L. 99-514); Revenue Act of 1978; ERISA of 1974 (Pub.L. 93-406); Economic Recovery Tax Act of 1981 (Pub.L. 97-34); EGTRRA 2001 (Pub.L. 107-16); IRC 402(g), 219, 414(v), 415(c); 26 CFR 1.402(g)-1. These form the backbone of every figure.
Tier 2, credible secondary that cites primary. Current Federal Tax Developments analysis of Notice 2025-67 and the Employee Fiduciary 401(k) limits page, both of which restate the IRS notice. Used for corroboration only.
Tier 3, reputable journalism and aggregators. Forbes (Erb, history of the IRA deduction), DQYDJ, PennyCalc, Carry, and Financial Samurai historical tables. Used only to cross-check direction, never as the sole basis of a retained figure.
Excluded. The 1988 402(g) figure ($7,313) and 1990 figure ($7,979) are documented in IRS historical guidance but do not appear in the specific primary tables relied on here and were omitted as a conservative integrity choice, not because they are unverifiable. A possible $1,100 IRA catch-up for 2026 was not confirmed to the notice and was dropped. The SECURE 2.0 $11,250 super catch-up is carried as an anchor-provided value pending direct confirmation to Notice 2025-67.
Most quotable statistics
- The 2026 U.S. 401(k) limit of $24,500 is $3,922 above its inflation-tracked 1987 value of $20,578 (Source: IRS Notice 2025-67; BLS CPI-U; Q3 Advisors calculation).
- The 401(k) deferral limit has risen 250 percent since 1987, but only 0.45 percent per year after inflation (Source: IRS data; BLS CPI-U; Q3 Advisors calculation).
- The U.S. IRA limit trails inflation by $1,811 when measured from its 1975 origin of $1,500 (Source: ERISA 1974; BLS CPI-U; Q3 Advisors calculation).
- The 401(k) cap’s real value bottomed at $19,767 in 1997, below its 1987 real value, in 2026 dollars (Source: IRS data; BLS CPI-U; Q3 Advisors calculation).
- 2023 was the only year the U.S. 401(k) limit ever rose by $2,000 in a single step, a 9.76 percent jump (Source: IRS cola-table.pdf).
- The 2026 combined 415(c) ceiling is $72,000, up from $40,000 in 2002 (Source: IRS Notice 2025-67).
- The 2026 SECURE 2.0 catch-up for ages 60 to 63 is $11,250, on top of the $24,500 base (Source: IRS Notice 2025-67).
Data limitations
- The 2026 annual-average CPI-U cannot be computed yet; June 2026 (333.952, verified against the BLS June 2026 release) or the 2025 eleven-month average (321.943) is used and labeled at each figure. The 2025 figure is an eleven-month mean because the October 2025 CPI was cancelled during the U.S. federal government shutdown and never released, so no official 2025 M13 average exists (Source: BLS series CUUR0000SA0).
- Statutory rounding to $500 and use of prior-year Q3 CPI mean a smooth inflation path will not exactly match the discrete statutory steps.
- This analysis uses CPI-U; the IRS applies chained C-CPI-U to many post-2018 COLAs, which would lower tracked values slightly.
- The 1988 and 1990 402(g) values, though documented in IRS historical guidance, are absent from the specific primary tables used here and are omitted as a conservative choice, leaving two gaps in the early series.
- The Limit-to-Median-Wage ratio is not computed because a primary wage series was not in the verified evidence base.
- The IRA verdict depends on inception year: negative from 1975, positive from 1982.
Recommended dataset fields
A downloadable CSV version would contain, per year from 1987 to 2026: calendar year; 402(g) elective-deferral limit nominal; 402(g) limit in constant 2026 dollars; annual-average CPI-U; year-over-year nominal change; year-over-year percent change; inflation-tracked value from 1987; gap versus inflation-tracked; IRC 414(v) age-50 catch-up; SECURE 2.0 age 60 to 63 catch-up where applicable; IRA 219 limit nominal; IRA age-50 catch-up; IRC 415(c) annual-additions limit; and a source-citation column naming the IRS notice or statute for each row.
Press summary (150 words)
New analysis from Q3 Advisors restates 39 years of the U.S. 401(k) contribution limit in constant 2026 dollars and finds the cap has outpaced inflation. The 2026 elective-deferral limit of $24,500 sits $3,922 above the $20,578 it would equal had the 1987 starting value of $7,000 simply tracked consumer prices (IRS Notice 2025-67; BLS CPI-U). Nominal growth of 250 percent since 1987 translates to just 0.45 percent per year after inflation, showing most increases replaced lost purchasing power. The picture differs for IRAs: measured from the 1975 origin of $1,500, the 2026 IRA limit of $7,500 trails inflation by $1,811, a legacy of the unindexed $2,000 freeze from 1982 to 2001. The 401(k) cap’s real value bottomed at $19,767 in 1997 before EGTRRA 2001 reforms lifted it. The full year-by-year dataset is available with every figure sourced to the IRS or federal statute.
Suggested headlines
- The Real 401(k) Limit: 2026 Cap Runs $3,922 Ahead of Inflation Since 1987
- 401(k) Limit Up 250% Since 1987, But Just 0.45% a Year After Inflation
- Why the IRA Limit Still Trails Inflation by $1,811 Since 1975
- The 401(k) Cap’s Lost Decade: Real Value Bottomed in 1997
- 2023 Was the Only Time the 401(k) Limit Ever Jumped $2,000 in One Year
Work with Q3 Advisors
Q3 Advisors is a registered investment adviser focused on retirement tax planning. This report is educational and is not advice; consult a qualified tax or financial professional.
Frequently asked questions
What was the very first 401(k) contribution limit?
The 401(k) was created by the Revenue Act of 1978 and became usable for U.S. plan years beginning in 1980, but no separate employee deferral dollar cap existed until IRC 402(g) took effect in 1987 at $7,000 under the Tax Reform Act of 1986 (Source: Revenue Act of 1978; Pub.L. 99-514). So the first elective-deferral cap was $7,000 in 1987.
By what percentage has the 401(k) limit increased from 1987 to 2026?
The U.S. 401(k) elective-deferral limit rose from $7,000 in 1987 to $24,500 in 2026, an increase of 250 percent in nominal dollars over 39 federal tax years (Source: IRS annual COLA news releases; IRS Notice 2025-67; Q3 Advisors calculation). In inflation-adjusted terms the real gain is far smaller, about 19 percent.
What is the CAGR of the 401(k) limit from 1987 to 2026?
The compound annual growth rate is 3.26 percent per year in nominal terms, calculated as (24,500 divided by 7,000) to the power of (1 divided by 39) minus 1 (Source: Q3 Advisors calculation on IRS data). After adjusting for CPI-U inflation, the real CAGR is only 0.45 percent per year.
What is the 1987 $7,000 limit worth in 2026 dollars?
Using the June 2026 CPI-U of 333.952 against the 1987 annual average of 113.6, the 1987 cap of $7,000 equals $20,578 in 2026 dollars (Source: BLS CPI-U series CUUR0000SA0; Q3 Advisors calculation). Using the 2025 eleven-month average CPI-U of 321.943 instead, it equals $19,838. The 2025 figure is an eleven-month mean because the October 2025 CPI was cancelled during the U.S. federal government shutdown.
How many years was the 401(k) limit frozen between 1987 and 2006?
The U.S. limit recorded no year-over-year increase in at least four separate years in that window: 1995, 1997, 1999, and 2001 (Source: IRS annual COLA news releases; IRC 402(g)). Statutory rounding to the nearest $500 held the indexed figure flat in those years even though prices rose.
What percent of the U.S. median salary did the 401(k) limit represent in 1987 versus 2026?
This ratio is not reported here. A primary median-wage series, such as the SSA Average Wage Index, was not part of the verified evidence base for this report, and data integrity rules prohibit publishing an unverified figure (Source: Q3 Advisors methodology). The ratio should be added only once wage data is sourced to a primary series.
How much did the limit jump in the record 2023 increase?
The U.S. 401(k) limit rose from $20,500 in 2022 to $22,500 in 2023, an increase of $2,000, or 9.76 percent (Source: IRS cola-table.pdf; Q3 Advisors calculation). It is the largest single-year dollar increase in the history of the deferral cap.
What is the 2026 total 415(c) contribution limit?
The 2026 combined employer-plus-employee annual-additions limit under IRC 415(c) is $72,000 in the United States (Source: IRS Notice 2025-67). That ceiling was $40,000 in 2002 and $70,000 in 2025.
How much is the age-50 catch-up in 2026, and when did it start?
The age-50 catch-up under IRC 414(v) is $8,000 for 2026 (Source: IRS Notice 2025-67). It first applied in U.S. tax year 2002 at $1,000 and has been indexed upward since, reaching $6,500 by 2020 and $7,500 in 2025.
How much is the SECURE 2.0 super catch-up for ages 60 to 63 in 2026?
The SECURE 2.0 higher catch-up for U.S. savers aged 60 to 63 is $11,250 for 2026 (Source: IRS Notice 2025-67, anchor-provided). Combined with the $24,500 base, an eligible saver in that age band could defer up to $35,750.
Sources
IRS, Cost-of-Living Adjustments for Retirement Items (cola-table.pdf), Internal Revenue Service, irs.gov/pub/irs-tege, retrieved 2026-07-26 (rows 402(g)(1) elective deferrals, 219(b)(5)(A) IRA limit, 414(v)(2)(B)(i) catch-up, 415(c)(1)(A) DC limits, for the years the table covers, roughly 2000 forward).
IRS annual cost-of-living-adjustment news releases and accompanying notices, Internal Revenue Service, irs.gov, retrieved 2026-07-26 (primary source for the pre-2000 402(g) elective-deferral limits, together with the statutory indexing rule of IRC 402(g)).
IRS Notice 2025-67, 2026 cost-of-living adjustments (402(g) $24,500; IRA $7,500; 415(c) $72,000; catch-ups $8,000 and $11,250).
U.S. Bureau of Labor Statistics, CPI-U, U.S. city average, all items, not seasonally adjusted, series CUUR0000SA0, annual averages (M13) and 2026 monthly values, download.bls.gov, retrieved 2026-07-26.
Tax Reform Act of 1986, Pub.L. 99-514, sec.1105(a) (402(g) $7,000 for 1987).
Revenue Act of 1978 (created IRC 401(k), effective 1980).
Employee Retirement Income Security Act of 1974, Pub.L. 93-406 (IRA $1,500).
Economic Recovery Tax Act of 1981, Pub.L. 97-34 (IRA $2,000, effective 1982).
EGTRRA 2001, Pub.L. 107-16 (2002 to 2008 IRA step-up and catch-ups).
Internal Revenue Code sections 402(g), 219, 414(v), 415(c); 26 CFR 1.402(g)-1.
All constant-dollar, gap, and CAGR figures are Q3 Advisors calculations on the primary data above; formulas and inputs are shown in the Methodology and Original synthesis sections.