August 2026 Euribor: a 2.954% close and higher mortgage payments

The monthly average of the 12-month Euribor for August 2026 is 2.954%. The Bank of Spain confirmed it on 1 September, and it was published in Spain’s BOE on 2 September 2026 under resolution BOE-A-2026-18507.

It rose 0.099 percentage points from July and 0.840 points from August 2025. For a mortgage with an annual review using the August average, this means a higher interest rate if the spread stays unchanged.

The August close in context

• August 2026: 2.954%. Final, published monthly average.
• July 2026: 2.855%. Monthly increase of 0.099 points.
• August 2025: 2.114%. Annual increase of 0.840 points.
• February 2026: 2.221%. Six-month increase of 0.733 points.

These are percentage points: a 0.840-point rise does not mean your payment increases by 0.840%. The euro impact depends on your loan. See the July analysis to compare the two monthly closes.

Annual review example: €67.71 more per month

For €150,000 outstanding, 25 years remaining and a spread of 1 percentage point, the French amortisation calculation gives:

• Using August 2025: 2.114% Euribor + 1 point = 3.114% TIN; payment of €720.24/month.
• Using August 2026: 2.954% Euribor + 1 point = 3.954% TIN; payment of €787.95/month.
• Difference: €67.71 per month, or €812.52 across 12 payments.

We keep capital and remaining term unchanged in both scenarios to measure only the effect of the interest rate. Payments are rounded to cents and exclude insurance and fees. The example’s nominal rate (TIN) is not APR.

For a six-monthly review comparing August with February 2026, the same example would rise from €728.68 to €787.95 per month: €59.27 more. In either case, your mortgage deed specifies the reference month and the conditions your bank must use.

Which figure to use for your mortgage

Your mortgage uses the average for the agreed reference month at the scheduled review date. A higher daily fixing does not automatically change your next payment.

As of 10 September 2026, August remains the latest final official monthly average. September’s average is still provisional. Hipotecalc’s simulations use the latest published month and identify it alongside the rate.

Explore scenarios on the Euribor page, or use the mortgage calculator to enter your amount, term and spread. If you are considering a different loan, the mortgage comparison shows published prices and conditions. Assess a lower payment alongside switching costs and the price of bundled products.

Sources and calculation: Bank of Spain, BOE-A-2026-18507 and ECB monthly series FM.M.U2.EUR.RT.MM.EURIBOR1YD_.HSTA. Payments calculated by Hipotecalc using rates to three decimal places, with the final payment rounded to cents. See our methodology for the update criteria.