Editorial note: This page is educational and is not legal, tax, or financial advice. CalPERS benefit rules, contract COLA caps, and PPPA thresholds are set by statute and by each employer's contract. Confirm your specific factors with your CalPERS account and consult a California licensed CPA or attorney before acting on any figure shown here.
Last updated: August 13, 2026 · By Gold California Editorial
Quick answer: The CalPERS annual cost-of-living adjustment (COLA) is a percentage increase applied on May 1 each year, starting the second calendar year after retirement. It is capped by the retiree's employer contract at 2 percent for most state and school members, or at 2, 3, 4, or 5 percent for members of contracting public agencies. If the CPI runs higher than the cap for enough years to erode a retiree's purchasing power below the statutory floor, the Purchasing Power Protection Allowance (PPPA) tops the benefit up to 75 percent (state and school) or 80 percent (public agencies) of its original value.
Short on time? The essentials
- CalPERS COLA is authorized by Government Code Article 3 of Chapter 13, Part 3 of Division 5, sections 21310 through 21337.1.
- The annual COLA rate equals the lesser of the change in the Bureau of Labor Statistics CPI for All Urban Consumers (1967 base) or the employer's contracted COLA cap.
- Standard cap for state members and all school members is 2 percent per year. Contracting public agencies may contract for 2, 3, 4, or 5 percent per year.
- COLA begins the second calendar year after retirement and is paid on the May 1 warrant each year, per CalPERS Cost-of-Living Adjustments guidance and the annual COLA fact sheet.
- The 2025 annual CPI figure used by CalPERS was 964.398 and the 2025 rate of inflation was 2.63 percent, per the CalPERS cost-of-living page for the May 1, 2026 payment.
- For the May 1, 2026 payment, state and school retirees under the 2 percent provision with retirement years 1988 through 2024 received a 2.00 percent COLA. State and school retirees with retirement years 1965 through 1986 received 2.63 percent, including the PPPA top-up.
- PPPA is a separate benefit governed by Government Code sections 21337 (state and school) and 21337.1 (contracting public agencies).
- PPPA is paid on the May 1 warrant only when a retiree's benefit falls below the statutory purchasing power floor: 75 percent for state and school members, 80 percent for public agency members.
- Retirees under 4 percent or 5 percent contract COLAs generally do not receive PPPA because the higher cap keeps their benefit above the 75 or 80 percent floor.
This page explains the annual CalPERS cost-of-living adjustment and the Purchasing Power Protection Allowance for California retirees. Both mechanisms are set by California statute and by the retirement contract each CalPERS employer signed. The page cites the Government Code sections and the current CalPERS member guidance on every figure.
COLA and PPPA are two distinct benefits. COLA is paid every year to eligible retirees. PPPA is paid only when a retiree's benefit falls below a statutory purchasing power floor. Confusing the two leads to wrong expectations about how a benefit will grow over a long retirement.
What is the CalPERS annual COLA
The CalPERS annual COLA is a percentage increase added to a retiree's monthly benefit each May 1. It is not a discretionary raise. It is a statutory adjustment tied to a published inflation index and capped by the retiree's employer contract.
The COLA framework sits in Government Code Article 3 of Chapter 13, Part 3, Division 5 of Title 2, sections 21310 through 21337.1 (source: California Government Code Section 21329). Section 21329(b) sets the default cap for state members and school members: the adjusted allowance in any year may not exceed the base allowance increased by 2 percent per year compounded from the base year.
The 2 percent default sits alongside two floor rules. Section 21329(a) prevents an adjustment smaller than 1 percent of the base allowance, and it caps any single-year adjustment at 6 percent of the base allowance. In practice, most retirees see either the 2 percent contract cap or the smaller CPI-driven number in any given year.
How the CalPERS COLA is calculated each year
CalPERS computes the annual rate of inflation using the Bureau of Labor Statistics Consumer Price Index for All Urban Consumers (CPI, 1967 base). The system uses the annual CPI figure published each spring for the prior calendar year.
The formula published on the CalPERS cost-of-living page is a single line: rate of inflation equals the current-year annual CPI minus the previous-year annual CPI, divided by the previous-year annual CPI (source: CalPERS, Cost-of-Living Adjustments (COLA)).
For the May 1, 2026 payment, CalPERS used a 2025 annual CPI of 964.398 and a 2024 annual CPI that produced a rate of inflation of 2.63 percent under the formula. The system then applies the smaller of that CPI figure or the employer contract cap to each retiree's base allowance.
Assume a state member retired December 2020 with a base allowance of $4,000 per month, under the 2 percent COLA provision (Government Code Section 21329(b)). For the May 1, 2026 payment, the CalPERS rate of inflation was 2.63 percent and the contract cap was 2 percent. The system applies the lesser figure, so the 2026 COLA factor for this retiree is 2 percent.
The base allowance factor for this retiree already reflects prior years of COLA. Under the compounding rule on the CalPERS cost-of-living page, a retiree who received 2.00 percent COLA in each of 2022 through 2025 has a cumulative factor of 1.0824 by May 2025. Adding the 2 percent 2026 COLA brings the factor to 1.1041.
The May 1, 2026 monthly allowance is therefore roughly $4,416. Confirm your specific year-by-year factors in your CalPERS account, since your original base allowance may already reflect prior adjustments and any PPPA additions.
The 2, 3, 4, and 5 percent contract caps
The contract cap depends on who your employer was. State members and all school members receive a 2 percent per-year COLA under Government Code Section 21329(b). Contracting public agencies (cities, counties, special districts) can bargain a 2, 3, 4, or 5 percent per-year COLA into their CalPERS contract (source: CalPERS, Cost-of-Living Adjustments (COLA)).
The higher-cap tiers cost the employer more. A 5 percent COLA provision requires the agency to fund the possibility that inflation runs high for many consecutive years. Most local agencies in California use the 2 percent provision. Some use 3 percent. A smaller set contract for 4 percent. Very few use 5 percent.
| Contract COLA cap | Who is eligible | Statutory basis |
|---|---|---|
| 2 percent | All state members; all school members; contracting public agencies that adopted the default | Government Code Section 21329(b); default under Article 3 |
| 3 percent | Contracting public agencies that bargained a 3 percent COLA provision | Contract amendment under Article 3 |
| 4 percent | Contracting public agencies that bargained a 4 percent COLA provision | Contract amendment under Article 3 |
| 5 percent | Contracting public agencies that bargained a 5 percent COLA provision | Contract amendment under Article 3 |
Source: CalPERS, Cost-of-Living Adjustments (COLA), checked August 2026 at calpers.ca.gov/retirees/cost-of-living/cola. Cross-referenced with California Government Code Section 21329.
Check your retirement contract or your CalPERS annual member statement to confirm your contract cap. The cap does not change after retirement; the contract in force at your retirement date sets the cap for the rest of your life.
When your first COLA is paid
Eligibility begins the second calendar year after retirement, per the CalPERS Cost-of-Living Adjustments page. The first payment is included in the May 1 warrant of that second calendar year (source: CalPERS, Cost-of-Living Adjustments (COLA)).
The rule is a calendar-year rule, not a rolling anniversary. A January 2024 retiree and a December 2024 retiree are both first eligible on the May 1, 2026 warrant. In both cases, 2026 is the second calendar year after the 2024 retirement date.
Survivors and named beneficiaries receiving a continuing allowance are treated the same way for COLA purposes. The CalPERS cost-of-living page describes them as included among the eligible retirees who receive information in April for the May 1 warrant.
Compounding: how COLA stacks year over year
The CalPERS COLA is compounded, not simple. Each year's adjustment applies to the prior year's adjusted allowance, so the dollar increase grows over time even when the percentage stays the same.
The CalPERS cost-of-living page illustrates the compounding: after a first-year 2 percent adjustment, the factor is 1.0200. A second consecutive 2 percent adjustment produces 1.0200 multiplied by 1.02, or 1.0404, for a total two-year growth of 4.04 percent, not 4.00 percent (source: CalPERS, Cost-of-Living Adjustments (COLA)).
Over a long retirement the compounding matters. A $4,000 base benefit under a 2 percent COLA grows to roughly $4,876 after 10 years and about $5,946 after 20 years. The illustration below applies the compounding rule to the four contract tiers on a $1,000 base benefit.
Recent CalPERS COLA amounts, May 1, 2026 warrant
The May 1, 2026 CalPERS warrant reflected a 2025 rate of inflation of 2.63 percent. Retirees received either the CPI-driven figure or their contract cap, whichever was lower. Older retirees who had lost purchasing power under lower caps also received a PPPA top-up on top of the COLA.
| Provision and retirement year band | COLA or COLA plus PPPA | Notes |
|---|---|---|
| State and school 2 percent, retired 1988 through 2024 | 2.00 percent | Contract cap binds; CPI 2.63 percent exceeds cap. |
| State and school 2 percent, retired 1987 | 2.12 percent | Includes PPPA top-up above the 2 percent cap. |
| State and school 2 percent, retired 1965 through 1986 | 2.63 percent | Includes PPPA top-up; brings benefit up to 75 percent floor. |
| Public agency 3 percent, retired 2023 or 2024 | 2.63 percent | CPI binds; below 3 percent cap. |
| Public agency 4 percent, retired 2022 through 2024 | 2.63 percent | CPI binds; below 4 percent cap. |
| Public agency 5 percent, retired 1965 through 2024 | 2.63 percent | CPI binds; well below 5 percent cap. No PPPA needed. |
Source: CalPERS, Cost-of-Living Adjustments (COLA), effective May 1, 2026 table, checked August 2026 at calpers.ca.gov/retirees/cost-of-living/cola.
Two patterns are visible in the 2026 table. Retirees under the 2 percent state and school provision saw the cap bind in a year when CPI ran higher than 2 percent. Retirees under higher contract caps received the full CPI figure because the CPI was well under their cap.
The oldest state and school retirees, those with retirement dates from 1965 through 1986, received a figure above their 2 percent cap. That difference is the PPPA top-up, discussed next.
What the Purchasing Power Protection Allowance does
The Purchasing Power Protection Allowance is a separate statutory benefit that restores a retiree's purchasing power to a defined floor when accumulated inflation has eroded the value of the base allowance below that floor. It is paid annually with the May 1 warrant, after the COLA is applied.
PPPA is authorized by Government Code Section 21337 for state and school members, and by Government Code Section 21337.1 for retirees of contracting public agencies (source: California Government Code Section 21337 and Section 21337.1).
Both sections read the same way in structure. The section authorizes an annual adjustment sufficient to bring the monthly allowance up to the stated purchasing power percentage of the initial monthly allowance. The adjustments are effective with the monthly allowance regularly payable on the first day of May each year.
How PPPA is computed
PPPA is calculated after the COLA for the year has been applied. CalPERS computes the inflation factor from the retirement year, applies it to the base allowance, and multiplies by the statutory threshold percentage to get the PPPA floor. Any shortfall between the floor and the current benefit (base allowance plus COLA) is the PPPA amount.
The published CalPERS formula reads: inflation factor equals current-year CPI divided by retirement-year CPI. PPPA threshold equals base allowance multiplied by inflation factor multiplied by the threshold percentage. PPPA equals the PPPA threshold minus the sum of the base allowance and the COLA amount (source: CalPERS, Purchasing Power Protection Allowance).
Assume a state member retired in 1985 with a base allowance of $1,500 per month, under the 2 percent COLA provision (Government Code Section 21329(b)). For the May 1, 2026 payment, the CalPERS-published rate of inflation for 2025 was 2.63 percent. The state and school PPPA floor is 75 percent of the initial monthly allowance, adjusted for cumulative inflation, under Section 21337.
Because 2 percent compounded over 40 years lags the cumulative CPI change from 1985 to 2025, the current benefit (base allowance plus accumulated COLA) may fall below the 75 percent floor. The PPPA equals the floor minus the current benefit.
On the May 1, 2026 warrant for this hypothetical retiree, CalPERS would issue a 2.00 percent COLA plus a PPPA top-up. The total increase matches the figure shown in the recent-COLA table for state and school retirees with retirement years 1965 through 1986. Confirm your specific factors and any PPPA top-up in your CalPERS account.
The 75 percent and 80 percent PPPA floors
The purchasing power floor depends on which retirement contract you are under. State members and school members are protected to 75 percent of the initial monthly allowance under Section 21337. Retirees of contracting public agencies are protected to 80 percent under Section 21337.1 (source: CalPERS, Purchasing Power Protection Allowance).
| Retiree category | PPPA floor | Statutory basis |
|---|---|---|
| State member or school member | 75 percent of initial monthly allowance | Government Code Section 21337 |
| Retiree of a contracting public agency | 80 percent of initial monthly allowance | Government Code Section 21337.1 |
Source: California Government Code sections 21337 and 21337.1; CalPERS, Purchasing Power Protection Allowance, checked August 2026 at calpers.ca.gov/retirees/cost-of-living/pppa.
Retirees under 4 percent or 5 percent public agency contracts generally do not receive PPPA. The CalPERS page states that these higher COLA percentages keep the benefit above the 75 or 80 percent floor in most CPI environments (source: CalPERS, Purchasing Power Protection Allowance).
PPPA and COLA are separate line items. COLA is the annual percentage adjustment under Section 21329 and the retiree's contract. PPPA is the once-a-year top-up under Section 21337 or 21337.1 that restores the benefit to the statutory floor. Both are paid together on the May 1 warrant.
How to check your COLA and PPPA on the May 1 warrant
The steps below outline how a California retiree confirms the annual COLA figure and any PPPA top-up on the May 1 warrant. They describe the general mechanics; consult CalPERS Customer Contact Center for figures specific to your account.
- Find your CalPERS retirement date and contract type. Your annual member statement, your retirement election paperwork, or your CalPERS account online shows both. Contract type determines your COLA cap and your PPPA floor.
- Read the current CalPERS cost-of-living page. The page publishes the CPI-driven rate of inflation for the year and a table of effective allowance increases by contract type and retirement year band. Confirm which row applies to your situation.
- Compare your April warrant to your May 1 warrant. The May 1 warrant reflects the new COLA and any PPPA top-up. The dollar increase should approximately equal your April monthly allowance multiplied by the percentage in the CalPERS table row that applies to you.
- Confirm the retirement year band. The CalPERS COLA table groups retirees into retirement year bands (for example 1988 through 2024, 1987, and 1965 through 1986 for the 2026 table). Older retirees under the 2 percent state and school provision often receive a higher figure because PPPA lifts the total.
- Check the annual COLA fact sheet. The CalPERS Newsroom and Member Publications pages usually publish an annual COLA fact sheet each April that spells out the CPI figure, the formula, and the rate paid to each contract tier for the May 1 warrant.
- Call CalPERS if the math does not match. The CalPERS Customer Contact Center can walk through your specific base allowance, cumulative COLA factor, and any PPPA adjustment. Rounding at each step of the calculation can produce small differences between a hand calculation and the printed warrant.
None of these steps replaces confirmation from CalPERS. A licensed California CPA or a fiduciary financial planner can help you fit the COLA and PPPA figures into your broader retirement income plan.
When this page does not answer your question
This page covers the mechanics of the CalPERS defined benefit COLA and PPPA. It does not cover several adjacent topics that are worth flagging so a reader does not draw the wrong conclusion from what is here.
- CalSTRS COLA and SBMA. The California State Teachers' Retirement System uses a different COLA mechanism (a simple 2 percent under Education Code) and a separate Supplemental Benefit Maintenance Account, not the CalPERS PPPA. See the sibling CalSTRS page.
- UC Retirement Plan COLA. The University of California pension plan follows UC Regents' rules under a separate governance structure. Its COLA and floor mechanics differ from CalPERS. See the sibling UC page.
- 1937 Act county retirement systems. The 20 California county retirement systems governed by the County Employees Retirement Law of 1937 (LACERA, OCERS, SBCERA, and others) have COLA and supplemental COLA rules set by each county board, not by the CalPERS Government Code sections cited here.
- Federal Social Security COLA. The federal Social Security cost-of-living adjustment is announced by the Social Security Administration each October under the CPI-W (federal, not CalPERS) index and applies to a separate benefit.
- Predictions of future COLA amounts. This page does not predict what future CPI figures will be. The CalPERS Actuarial Office publishes periodic actuarial valuations that include long-range assumptions; those are assumption sets, not forecasts.
None of these situations replaces professional advice. A California CPA or a fiduciary planner should confirm the numbers before you assume a specific outcome for your retirement income.
CalPERS COLA and PPPA, answered
Is the CalPERS COLA guaranteed to be 2 percent every year?
No. The 2 percent figure is a contract cap for state and school members, not a floor. The actual COLA paid each year is the lesser of the CPI-driven rate of inflation or the contract cap. In a low-inflation year, the CPI figure applies and the COLA can be below 2 percent. Government Code Section 21329(a) does prevent adjustments below 1 percent of the base allowance in any single year.
When does my first CalPERS COLA arrive?
On the May 1 warrant of the second calendar year after your retirement date, per the CalPERS Cost-of-Living Adjustments page. A member who retired anytime in 2024 is first eligible on the May 1, 2026 warrant. The calendar-year rule applies uniformly, so a January 2024 retirement and a December 2024 retirement produce the same first-eligible date.
What is the difference between COLA and PPPA?
COLA is the annual percentage adjustment applied to a base allowance under Government Code Section 21329 and the retiree's employer contract cap of 2, 3, 4, or 5 percent. PPPA is a separate benefit under Section 21337 (state and school) or Section 21337.1 (public agencies). It restores a retiree's purchasing power to 75 or 80 percent of the initial monthly allowance when accumulated CPI change has eroded the benefit below that floor.
Which CPI index does CalPERS use for COLA?
CalPERS uses the Bureau of Labor Statistics Consumer Price Index for All Urban Consumers (CPI, 1967 base), per the CalPERS cost-of-living page. The rate of inflation for a given year equals the current-year annual CPI minus the previous-year annual CPI, divided by the previous-year annual CPI. For the May 1, 2026 payment, the 2025 annual CPI was 964.398 and the rate of inflation was 2.63 percent.
Can my COLA percentage be reduced after I retire?
The contract cap in force at your retirement date sets the ceiling for the rest of your life. The CPI-driven figure varies each year, so the actual percentage paid varies. In years when CPI runs below your contract cap, the CPI figure applies and the COLA is smaller than the cap. In years when CPI runs above the cap, the cap applies. Consult CalPERS on your specific contract if you have questions.
Why did my older neighbor get a bigger CalPERS raise than I did?
The older retiree may be receiving PPPA on top of COLA. On the May 1, 2026 table, state and school retirees in the 1965 through 1986 band received 2.63 percent (COLA plus PPPA). State and school retirees who retired 1988 through 2024 received 2.00 percent (COLA only, capped). PPPA restores older benefits to the 75 percent purchasing power floor under Government Code Section 21337.
Do retirees under a 4 percent or 5 percent contract COLA ever receive PPPA?
Generally no. The CalPERS Purchasing Power Protection Allowance page states that retirees under 4 or 5 percent COLA contracts will generally not receive PPPA. The higher COLA percentage keeps their benefit above the 75 or 80 percent purchasing power threshold in most CPI environments. Contract-specific facts should be confirmed with CalPERS.
Are option elections (Option 2, 3, 4, and the unmodified allowance) irrevocable?
In most cases yes. CalPERS option elections at retirement determine how (and to whom) an allowance continues after your death. Under the CalPERS Member Publications on retirement option changes, the election generally cannot be changed after retirement except in narrowly defined situations (for example, dissolution of marriage). Confirm with CalPERS before you retire, since the choice is one of the most consequential in your CalPERS paperwork.
Sources
- CalPERS, Cost-of-Living Adjustments (COLA). Formula, CPI base, compounding rule, contract cap tiers, and effective allowance increases table for May 1, 2026. Checked August 2026.
- CalPERS, Purchasing Power Protection Allowance (PPPA). 75 percent and 80 percent thresholds, PPPA formula, and note that 4 percent and 5 percent COLA contracts generally do not receive PPPA. Checked August 2026.
- California Government Code Section 21329 (Cost-of-Living Adjustments, limits). 2 percent per-year default cap, 1 percent minimum, 6 percent single-year ceiling. Checked August 2026.
- California Government Code Section 21337 (PPPA, state and school employers, 75 percent). Checked August 2026.
- California Government Code Section 21337.1 (PPPA, contracting public agencies, 80 percent). Checked August 2026.
- CalPERS Newsroom, Member Publications (annual COLA fact sheet and circular letters). Annual publication schedule for the COLA fact sheet each spring. Checked August 2026.
- Bureau of Labor Statistics, Historical CPI-U tables. Underlying inflation index used by CalPERS COLA formula. Checked August 2026.
- CalPERS, Retirement Benefits (defined benefit formulas and option elections overview). Confirms base allowance is set at retirement under the applicable benefit formula. Checked August 2026.
- Social Security Administration, Cost-of-Living Adjustment (COLA) Information. Federal Social Security COLA is a separate program under a different index (CPI-W). Checked August 2026.
