The interest rate of booklet A could be divided by two on August 1, 2025

The remuneration of the favorite booklet of the French will again tumble this summer. The fault of inflation, which has reflected regularly for several months. Here is the likely return on booklet A on August 1.

• 
  

  To safeguard
  

  
  
  

  Saved
  

It is now a certainty: the interest rate of booklet A will fall on August 1. The final statistics of May inflation, published by INSEE this Friday, June 13, leave no room for doubt. In the past month, prices excluding tobacco increased by only 0.6%, according to the Institute. As a reminder, they had believed 1.6% in January, by 0.7% in February and March, then 0.8% in April. If it is therefore good news for consumers, it is much less so for holders of an A booklet. Because as a reminder, its interest rate, revised twice a year – on February 1 and August 1 – is calculated on the basis of a calculation formula which takes into account the average annual inflation excluding tobacco over the previous six months. For the new effective return on August 1, 2025, you must take a look at the side of inflation observed by INSEE between January and June 2025. If The latter is maintained at this floor level From 0.6% in June, it would stand on average at 0.83% over the period.

15 euros of interest lost each month on a booklet A on the ceiling

In addition, interbank rates (€ STER), which complement the Livret A rate calculation formula, are also clear. Still at 3.66% in July 2024, they decreased over the drops of the Master Bank Master Rates (ECB) to land at 1.924%, following the last decrease in guiding rates on June 5. Between January and June 2025, they should appear on average at around 2.44%. Which would lead, by strictly applying the calculation formula, to a 1.60% interest rate ((0.83%+2.44%) / 2) for booklet A. or 0.8 points less than its current yield, and almost half less than that in force until February 1, 2025, 3%.

If the calculation formula is applied to the letter, a saver whose booklet A is filled with the ceiling of 22,950 euros would only receive 32.5 euros inmonthly interests From August 1, against 45.9 euros currently. A loss of more than 15 euros per month that the Governor of the Banque de France could alleviate, François Villeroy de Galhau, and Bercy, could decide to give a boost to the remuneration of booklet A. An unlikely option.