for every month beyond 180 contribution months
CARE: a new pension formula based on wages across your working life
Let's understand CARE together—because your pension matters.

revalued to the wage level near the entitlement date
Contribute more, receive more · Contribute longer, gain more
The rate rises only after each full 12 months beyond 180. Remaining months are disregarded for the rate.
Example: 191 months = 20% · 192 months = 21.5%Earlier wages are excluded from the pensionable-wage calculation, leaving the result highly dependent on late-career wages.
Earlier months still count toward contribution duration, but their wages are not included in the wage base. CARE raises the rate by 0.125% each additional month and revalues every contributory wage.
Meet CARE in a short video
Begin with a concise introduction from the Social Security Office’s official YouTube channel before exploring the details below. The video is currently in Thai.
Watch on YouTube
01Earlier wages should not be forgotten
The old formula uses only the final 60 contributory wages. A Section 39 base of THB 4,800 late in the record can therefore pull the pension down while earlier wages are left out of the pensionable-wage base. CARE revalues and includes every contributory wage.
“CARE is only for Section 39 and uses Section 33 pensions to fund the increase.”
This is an understandable concern because the results for the two groups are often compared. CARE does not take rights from one group and divide them among another.
Everyone follows the same point rule, and earlier wages are revalued.
CARE compares each person's wage with the system wage level in each period, helping preserve the value of earlier wages without transferring rights between Sections 33 and 39.
See the reasoning, revaluation and Section 33/39 exampleShort formula · point example · important nuance+
This is only a mechanism example. The actual pensionable wage uses the average of every contribution-month point and is subject to the 60-month average wage ceiling before entitlement.
Each person is calculated from that person’s own contribution record.
Under the old formula, a THB 4,800 base near retirement may pull down the final 60-month average.
Section 33 members with lower or interrupted late-career wages may also benefit from using wages across the full contribution history.
Results depend on each person's wage history: during the transition, the blended formula protects accrued rights. After the transition, 100% CARE may be higher or lower than the old formula depending on the wage history.
Career Average Revalued Earnings
A pension calculation based on average wages across a working life, with wages from different periods revalued to a level comparable with wages near the entitlement date.
Contribute more, receive more. Contribute longer, gain more.
CARE uses every contributory wage and places wages from different periods on a comparable basis before calculating the pensionable wage.
More contributions, more pension
A higher wage relative to the RE assigned to that month earns more pension points.
Longer contributions, higher rate
After 180 months, the pension rate rises by 0.125% for every additional month.
Every month matters
Every contributory wage is included; the formula does not look only at wages near retirement.
Close the gapBuild fairnessKeep pace with change

Close the gap
Reduce employment-related pension risk and the effect of wages raised only near retirementBuild fairness
Apply one CARE rule, with protection for accrued rights during transitionKeep pace with change
Reflect rising wage ceilings and diverse work patternsCARE formula introduction with infographic
Review the formula, pension points and revaluation at a glance before choosing the detailed explanation or calculator. The video is currently in Thai.
Watch on YouTube
02Choose what to explore next
Open the full version for the point calculation, transition rules, examples and personal calculator.
Start with the main formula, then see how wages are revalued
The pension combines contribution duration with a revalued wage base drawn from the complete contribution history.
CARE formula introduction with infographic
See the formula, pension points and revaluation at a glance before working through the calculation below. The video is currently in Thai.
Watch on YouTube
02Starts at 20% after 180 contribution months and rises after every additional month.
Revaluation lets wages earned in different periods be compared appropriately.
Convert each month’s wage into a point, then convert the average point back into a current wage level
Follow the sequence: identify RE → calculate a monthly point → average all points → convert to the pensionable wage.

Identify RE for the month
RE is the reference wage assigned to each contribution month to compare a member’s wage with the system.
Calculate each month’s point
A higher wage relative to RE earns more points under the same monthly rule.
Average points across all contributions
All contribution-month points are added and divided by the number of those months.
Convert the point back into a wage
The accumulated point is converted to the wage level near the date pension entitlement begins.
Cap: the result cannot exceed the average statutory wage ceiling over the same final 60 months.+
This cap is not a new restriction introduced by CARE.
Under the old formula, wages over the final 60 months are averaged, with each month's wage limited by the statutory ceiling applicable in that month. If the ceiling changes during the period, the highest possible average is the average of all 60 monthly ceilings—not simply the ceiling in the final month.
CARE follows the same principle. After pension points are converted back into a pensionable wage, the result cannot exceed the average statutory ceiling over the 60 months before entitlement.
The maximum average pensionable wage in this example is therefore approximately THB 15,292, not THB 17,500 for all 60 months. This principle already exists under the old formula and continues under CARE so the maximum reflects the ceilings actually applicable in each period.
RE sources and start-of-system exceptions +
General rule: each month's RE refers to the average Section 33 wage statistic from two months earlier.
Start-up exceptions: a contributing member uses a THB 1,650 wage and RE in December 1998, producing 1 point. February 1999 uses the average RE of January and March 1999 to avoid the effect of that exception.
Data used: figures through July 2026 use system data; later figures are site projections. See “Assumptions to know” in the calculator for details.
See examples and further explanationPoint example · one-point value · 60-month average · wage ceiling+
If another month has a THB 8,000 wage and THB 10,000 RE, it earns 0.80 points. All contribution-month points are then averaged.
1 point = average RE over the final 60 months before entitlement
People becoming entitled at the same time use the same conversion value, even if one stopped contributing before age 55.
To reduce volatility and maintain a link with the old structure
The average smooths monthly wage data. It does not mean that everyone receives the same pension.
Average wage ceilings over the final 60 months
The maximum rises gradually as the Section 33 wage ceiling is phased up.
Detailed wage and contribution-month rules +
Only months with wages recognised under the Social Security Act are counted, including Section 33, Section 39 and assessed contribution debt. Months without reported wages are excluded from the average point.
If a month includes multiple employers or both Section 33 and Section 39 contributions, wages are combined, capped at the applicable ceiling, and counted as one contribution month.
The value of one point and the maximum pensionable wage are determined at the entitlement date, not the claim-filing date. The monthly one-point value cannot be lower than the previous month’s value.
Increase rights while protecting contributions already made
The transition covers people already receiving pensions before CARE and people first becoming entitled during the five-year transition. The higher protected calculation is used.
All pre-CARE, five-year transition and 100% CARE periods on this site are measured from that month for explanation and projection only.

People already receiving pensions when CARE takes effect
The current old-formula pension is compared with a recalculation using 100% CARE, and the higher amount is used.
Protection: if CARE is higher, the pension rises; if the existing pension is higher, the existing amount remains. A pension already being paid is not reduced.
People first becoming entitled after CARE takes effect
CARE is calculated alongside a blended formula that protects the pre-CARE weight, and the higher amount is selected.
+ (post-CARE share × CARE pension)
CARE rises by 20 percentage points each year while the pre-CARE portion remains protected
Protected pre-CARE portion: 60 of 60 months
Protected pre-CARE portion: 48 of 60 months
Protected pre-CARE portion: 36 of 60 months
Protected pre-CARE portion: 24 of 60 months
Protected pre-CARE portion: 12 of 60 months
Entitlement year 2 example: blended pension = 80% × old-formula pension + 20% × CARE pension. The weights apply to pension amounts, not wages. The result is then compared with CARE, and the higher amount is selected.
What does “compensation for the difference” mean?+
“Blended formula” and “compensation for the difference” are two ways of explaining the same calculation and produce the same amount.
The expression on the right is the “compensation for the difference” explanation. The blended formula shows the underlying rule: pre-CARE contribution periods remain proportionately protected during the transition.
The five-year transition determines the calculation method for people first becoming entitled in each period; it is not a five-year payment duration. After CARE and the blended formula are compared, the higher amount becomes the monthly pension payable for life.
Enter your record, choose an entitlement date, and compare three scenarios
Enter contributory wages or member contributions paid through July 2026. Choose a past or future entitlement month; future dates project wages under three assumptions.
Illustrative estimates only—not entitlement certification+
Results depend on the wages entered, future-wage assumptions, completeness of the contribution record and official system-average wages. They explain and compare the formula but cannot certify legal entitlement.

When do you expect to start receiving a pension?
Choose the first month you expect to receive a pension so the website can project wages and pension rights through that month.
Not sure what to enter?+
In general, pension entitlement requires insured status to have ended, age 55 or older, and at least 180 old-age contribution months. Choose the first month you expect pension entitlement to begin. If you already receive a pension, choose the actual first entitlement month.
Enter contributory wages
Choose the method that is easiest for you
Enter wages directly, or load an example and edit each month to match your history. A blank field or zero means no contribution for that month.
Wage pattern across the working life
Monthly wages after applying the ceiling for each month. The chart updates immediately when the entries change.
View the website's future-wage assumptionsCompare three wage paths through Jul 2031+
The three dotted lines are calculation assumptions, not forecasts of actual future wages.
Observed data and projection periods+
Accrued rights at August 2026 use entered wages and RE through July 2026. For a past entitlement date, wages from that date onward are excluded. For a future date, projected wages and projected RE begin in August 2026 and continue to the month before entitlement. Projections may be selected through December 2057.
Rights accrued to date
This is not the pension payable at entitlement.
Uses contributions through July 2026, including old-age contributions from both sides plus accumulated returns.
- Old-age contributions
- THB 0
- Accumulated return
- THB 0
- Estimated lump sum
- THB 0
59 additional contribution months
Three future-wage assumptions are compared, and the higher of CARE and the blended formula is selected under the transition rule.
Future results use this website's RE and wage-ceiling assumptions+
Used for projection only
The website compares three future-wage patterns and applies RE and wage-ceiling assumptions through the selected date. RE from August 2026 and wage ceilings after 2032 are website assumptions, not official data or announcements. See “Before using the projection” below for all rates applied.
No known wage has been entered, so the projected wage is zero.
- Old-age contributions
- THB 0
- Accumulated return
- THB 0
- Estimated lump sum
- THB 0
Details and assumptions +
Old-age contributions THB 0 · accumulated return THB 0
Each contribution receives the full return for the following month, when it is paid. Contributions through July 2026 therefore use official return factors through August 2026. Future months use a 5% annual return assumption compounded monthly.
No known wage has been entered, so the projected wage is zero.
- Old-age contributions
- THB 0
- Accumulated return
- THB 0
- Estimated lump sum
- THB 0
Details and assumptions +
Old-age contributions THB 0 · accumulated return THB 0
Each contribution receives the full return for the following month, when it is paid. Contributions through July 2026 therefore use official return factors through August 2026. Future months use a 5% annual return assumption compounded monthly.
From Aug 2026 to the month before entitlement, the wage follows the applicable ceilings: THB 17,500, THB 20,000 and THB 23,000.
- Old-age contributions
- THB 66,450
- Accumulated return
- THB 8,500
- Estimated lump sum
- THB 74,950
Details and assumptions +
Old-age contributions THB 66,450 · accumulated return THB 8,500
Each contribution receives the full return for the following month, when it is paid. Contributions through July 2026 therefore use official return factors through August 2026. Future months use a 5% annual return assumption compounded monthly.
Before using this estimate+
The site assumes CARE starts in September 2027 and measures the five-year transition from that month. This is not an official schedule.
RE: values through July 2026 are based on Social Security Office system data. From August 2026 through December 2057, each month is projected from the previous month at 1.041/12, equivalent to 4% annual growth.
Wage ceiling: the site uses THB 17,500 from January 2026, THB 20,000 from January 2029 and THB 23,000 from January 2032. It then assumes 4% increases each January from 2035 through 2057 to reduce long-range projection error. Those post-2032 increases are model assumptions, not statutory ceilings or official forecasts.
Lump-sum return: each contribution is paid in the following month and receives that payment month's full return. Contributions through July 2026 therefore use official SSO monthly factors through August 2026. From 2009 onward, principal and accumulated returns compound together; the earlier legal method kept prior accumulated returns separate. Future months use a 5% annual return assumption compounded monthly, consistent with the long-term old-age-benefit assumption and the pension-liability discount rate used in the financial statements. Actual future declared returns may differ.
Money values: projected results are nominal baht at the wage level of the entitlement year, not amounts discounted to today's purchasing power, and cannot certify an actual entitlement.
Special cases and additional conditionsSpecific questions about entitlement, returning to insured status, and death+
Entitlement arose before CARE, but the claim is filed later+
Months of entitlement before CARE takes effect are calculated and paid under the old formula. From the month CARE takes effect, the existing pension is compared with the amount recalculated under 100% CARE, and the higher amount applies. The first payment may therefore include pension arrears covering two periods, based on the member’s actual entitlement months.
Becoming an insured member again after receiving a pension+
In the normal case, when insured status later ends and the person becomes entitled to receive a pension again, the pension rate is increased for the additional contribution months and the pensionable wage is recalculated. The higher of the newly calculated wage base and the wage base used previously is selected, then multiplied by the new pension rate. If the first pension used the blended formula, an equivalent previous wage base is calculated by dividing the pension selected at first entitlement by the CARE pension rate at that time, and this equivalent base is compared with the newly calculated wage base.
Death before or after pension payments begin+
If a pension recipient dies within 60 months from the month pension entitlement begins, the heirs or other persons entitled under the law receive a lump-sum advance payment for the months remaining until 60 months are completed. If a member dies before pension payments begin, or becomes entitled to an old-age benefit with fewer than 180 contribution months, an old-age lump sum is paid instead. It comprises the old-age contributions paid by both the insured person and the employer, together with the return announced by the Social Security Office. In a month without a temporary contribution-rate reduction, the old-age allocation is 3% of contributory wages from the insured person and 3% from the employer.
How each year’s wages accumulate pension points
Points are calculated monthly, then grouped by year for readability. The table responds immediately to wage entries above.
Values through July 2026 were calculated and checked using SSO system data and may be used as a reference for estimates on this website. The formally prescribed RE values are expected to be consistent with or close to this table. When CARE takes effect, the SSO will rerun and verify the calculation under the prescribed rules.
No contribution month in this year.
| Month | Wage entered | Contributory wage | RE | Monthly point |
|---|---|---|---|---|
| Jan | — | — | THB 12,353 | — |
| Feb | — | — | THB 12,407 | — |
| Mar | — | — | THB 13,348 | — |
| Apr | — | — | THB 13,309 | — |
| May | — | — | THB 13,319 | — |
| Jun | — | — | THB 13,367 | — |
| Jul | — | — | THB 13,406 | — |
| Total points for year | 0 | |||
0 points ÷ 0 months = 0 average points
0 × one-point value THB 12,030 = THB 0 before the cap
| Year | Months | Average contributory wage | Average RE | Annual points | Cumulative points | Average points |
|---|---|---|---|---|---|---|
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — | |
| — | — | — | — | 0 | — |
How to read this: monthly points accumulate, but they must be divided by contribution months to obtain the average point before conversion to a pensionable wage. Annual grouping is for explanation only; the formula remains monthly.
Take your understanding of CARE further
After reading the principles, examples and calculation, watch a deeper discussion of the formula’s rationale and key issues. The video is currently in Thai.
Watch on YouTube
03Questions about CARE
What is CARE?+
CARE stands for Career Average Revalued Earnings. It calculates a pension from contributory wages across a person's working life, revaluing past wages to a level comparable with wages near the entitlement date rather than considering only wages near retirement.
Revaluation is carried out through pension points.
- Compare each month's contributory wage with the RE assigned to that month, using system data from two months earlier, to calculate that month's point.
- Average the points from every contributory month across the working life.
- Convert the average point back into a pensionable wage near the entitlement date using the system's average wage statistic over the preceding 60 months.
This allows each wage to be assessed against the wage level of its own period. Earlier contributory wages are not forgotten, and every contributory month matters to the pension calculation.
See the formula and revaluation methodDoes CARE raise pensions for Section 39 members by reducing pensions for Section 33 members?+
No. CARE does not transfer pension rights or pension amounts from Section 33 members to Section 39 members. The same point rule applies to every month of contributory wages, while past wages are revalued using Section 33 wage statistics. Many Section 39 cases improve because the old formula can allow the THB 4,800 wage base in the final years to pull down the 60-month average. Outcomes for each Section 33 member still depend on that person’s complete wage and contribution history.
When does old-age pension entitlement arise, and when does payment begin?+
A member must have reached age 55 and ceased to be an insured person. Entitlement begins in the month following the month in which both conditions have been met. A member with at least 180 months of old-age contributions receives a monthly pension; a member with fewer than 180 months receives an old-age lump sum.
How is the old-age lump sum calculated with fewer than 180 contribution months?+
For 12–179 contribution months, the calculation is unchanged: old-age contributions from both the member and employer plus accumulated returns. The improvement applies to 1–11 months. Previously only the member-side contribution was paid; the revised formula also includes the employer-side contribution and returns. In normal months the combined old-age allocation is 6% of contributory wages, or 6% of the THB 4,800 base for Section 39. Months with a temporary contribution-rate reduction use the amount actually allocated, plus any additional rate officially prescribed for calculating the lump-sum benefit in that period.
Does a temporary contribution-rate reduction reduce the pension?+
No. A pension is calculated from the contributory wage base and the number of contribution months, not from the actual amount of contributions paid. If a contribution rate is temporarily reduced while the wage base and contribution months remain recorded as usual, the pension is not reduced because of that rate reduction.
What should I do if past wage records are missing or incomplete?+
You may ask the Social Security Office to investigate. Missing information may result from an employer reporting incomplete wages or from another cause. The SSO will follow its fact-finding process and may request supporting documents or evidence so that the record can be corrected and the insured person receives the full benefit supported by the facts.
When will CARE take effect?+
The exact effective date is not yet known. It depends on the legal process and on completing the database and IT improvements needed to calculate every member’s pension accurately. For explanation and projection purposes, this website assumes that CARE takes effect in September 2027. This is a website assumption, not an officially announced implementation date.
Who developed the CARE formula?+
The Social Security Office’s actuarial team developed the detailed calculation, adapting CARE principles used in several countries, particularly OECD members. The proposal was considered by the ad hoc subcommittee appointed by the Social Security Board, refined in response to stakeholders, approved by the Social Security Board, and endorsed by the Cabinet on 14 July 2026.
Which countries use CARE or comparable pension-point principles?+
Countries use different names and parameters, but several systems consider earnings across many years or a full career and revalue earlier earnings. Examples include Austria, Belgium, Canada, Finland, Japan and Korea. Pension-point systems are used in Germany, Estonia, Lithuania and the Slovak Republic, as well as France’s mandatory supplementary pension. These are not identical to Thailand’s proposed formula, but they share the principle of valuing contribution records across time rather than only final earnings.
What is a pension point?+
Each month’s point is calculated by dividing the member’s contributory wage by the Reference Earnings (RE) assigned to that month. RE uses the average wage statistic for contributing Section 33 members from two months earlier to reduce the effect of delayed reporting. A point of 1.00 means the member’s wage equals that month’s RE. Points from every contributory month are averaged, then multiplied at entitlement by average RE over the preceding 60 months to convert them back into a pensionable wage. This revalues earlier contributory wages to a wage level near the entitlement date.
Why do December 1998 and February 1999 use different RE rules?+
Normally, each month’s RE uses the average Section 33 wage statistic from two months earlier. December 1998 was the first old-age contribution month and had two contribution records in the same month, so a contributing member uses a THB 1,650 wage and THB 1,650 RE, producing exactly 1 point. Using that exceptional December value directly for February 1999 would distort the result, so February uses the average of January and March 1999 RE instead.
Can the historical RE values on this website be used as a reference?+
Yes. RE values through July 2026 were calculated and checked using Social Security Office system data and may be used as a reference for estimates on this website. The formally prescribed RE values are expected to be consistent with or close to the values shown here. When CARE takes effect, the SSO will rerun and verify the calculation under the prescribed rules, and the formally published values will govern.
How does CARE affect the financial position of the Social Security Fund?+
Over the long term, total pension expenditure under CARE is expected to be close to the level under the old formula, but this does not mean expenditure is identical in every year. Costs rise during transition because accrued rights are protected. The Fund’s position also depends on other factors, and the Social Security Board has appointed a subcommittee to develop a long-term Funding Strategy.
I already receive a pension before CARE starts. Will it be increased?+
If you already receive a pension before CARE takes effect, a CARE amount will be calculated and compared with your existing pension. If CARE is higher, future pension instalments will be increased under the applicable rules, without retrospective adjustment. If CARE is not higher, your existing pension continues without reduction.