The rise of the CPI to 4.3% in August brings the increase of pensions for 2027 closer to its decisive phase. The law establishes that contributory pensions are to be revalued according to the average of the year-on-year rates of the Consumer Price Index between December of the previous year and November of the current fiscal year.
For 2027, therefore, the data from December 2025 to November 2026 must be accounted for. With nine of the twelve available months —and still taking August as an advanced data—, the average stands at approximately 3.16%.
How the increase of pensions for 2027 is calculated
The accumulated CPI since January is not used, nor is only the rate of November. The twelve year-on-year variations between December 2025 and November 2026 are summed, and the result is divided by twelve.
| Computable month | Year-on-year CPI |
|---|---|
| December 2025 | 2.9% |
| January 2026 | 2.3% |
| February 2026 | 2.3% |
| March 2026 | 3.4% |
| April 2026 | 3.2% |
| May 2026 | 3.2% |
| June 2026 | 3.2% |
| July 2026 | 3.6% |
| August 2026 | 4.3% —advanced data— |
| Provisional average | 3.16% |
The monthly data comes from the National Institute of Statistics. The figure for August may vary when the INE publishes the final result.
Three scenarios for the final increase
The year-on-year rates for September, October, and November are missing. If these three months averaged 2.5%, the final revaluation would be around 3%. If they averaged 3.5%, it would rise to approximately 3.2%. With an average of 4.5%, it would approach 3.5%.
| Average CPI between September and November | Estimated revaluation for 2027 |
|---|---|
| 2.5% | Around 3.0% |
| 3.5% | Around 3.2% |
| 4.5% | Around 3.5% |
These assumptions are not official forecasts. They only show how much the three pending data can alter the final result.
How much each pension would increase with a 3.2% rise
If the revaluation ended up being 3.2%, a pension of 1,000 euros would increase by about 32 euros per month; one of 1,500 euros, approximately 48 euros; and one of 2,000 euros, around 64 euros.
| Current monthly pension | Monthly increase with a 3.2% | Approximate new pension | Annual increase in 14 payments |
|---|---|---|---|
| 800 euros | 25.60 euros | 825.60 euros | 358.40 euros |
| 1,000 euros | 32 euros | 1,032 euros | 448 euros |
| 1,373.40 euros | 43.95 euros | 1,417.35 euros | 615.30 euros |
| 1,574.90 euros | 50.40 euros | 1,625.30 euros | 705.60 euros |
| 2,000 euros | 64 euros | 2,064 euros | 896 euros |
The average pension of the system reached 1,373.40 euros per month in August, while the average retirement pension stood at 1,574.90 euros, according to Social Security. The previous calculation applies a hypothetical increase of 3.2% to those amounts.
When the definitive increase will be known
The decisive data will be the advanced CPI of November, which is usually published at the end of that same month. With that information, the complete average can be estimated, although the statistical confirmation will arrive with the definitive CPI of November.
After that, the Government must approve the amounts applicable from January 1, 2027.
The general increase calculated with the CPI corresponds to contributory pensions. Minimum pensions, non-contributory pensions, and the minimum vital income may receive different increases if the Government applies the additional improvements planned to bring these benefits closer to the legal thresholds of sufficiency.
Why the 4.3% of August will not be the increase of pensions
The rate of 4.3% compares the prices of August 2026 with those of August 2025. It does not represent the average inflation of the period used to update pensions.
That is why it cannot be stated that benefits will increase by 4.3%. The months with lower inflation —such as January and February, both at 2.3%— reduce the average, while the summer spike raises it.
With the available data, an increase close to 3.2% is a plausible scenario if inflation remains at similar levels during the fall, but not a confirmed figure. The evolution of September, October, and November will determine the definitive result.