Where do the Euribor figures on this site come from?

Daily fixings come from the Bank of Finland, which publishes the Euribor series from January 2006 onwards. Monthly averages from 1999 come from the ECB Data Portal. Nothing is taken from EMMI's own pages, and no number is typed in or edited by hand.

Why is the newest date on the site not today?

Public sources may only republish Euribor after a 24-hour delay. The pipeline runs each business day after the previous day's fixing appears, so the newest date, {date}, is normally the last TARGET2 business day before today.

Why does a monthly average here differ slightly from the official one?

Averages on this site are the arithmetic mean of the daily fixings in the calendar month. In a small number of months they differ from the ECB Data Portal figure by a hundredth of a point or two; the largest case identified is March 2022 for the 12-month rate, where the gap is 0.014 percentage points.

Data sources and methodology

Two sources, one database

Every number on this site comes from one of two public institutions.

Bank of Finland. The daily fixings for all five maturities are taken from the Bank of Finland's published Euribor series, which starts in January 2006. This is the source of every value in the daily tables, of the "latest fixing" figures and of the charts.

ECB Data Portal. The European Central Bank's statistical portal publishes official monthly averages of Euribor going back to January 1999. These are used for two things: to fill the years 1999 to 2005, for which no daily series is held, and to cross-check the monthly averages computed from the daily fixings.

All values are stored in a single database that the site is built from. As of the last build it holds fixings from 2 January 2006 to 4 September 2026, covering 5060 business days. The database is only ever appended to; a run that would reduce the number of rows is treated as a failure.

How averages are computed

A monthly average is the arithmetic mean of the daily fixings in that calendar month, with each business day counted once. This is the figure most mortgage contracts refer to when they say "the monthly average of 12-month Euribor". For the current month the page shows a running average over the fixings received so far and states how many days it covers.

A yearly average is the arithmetic mean of all daily fixings in the year. For the years before 2006, where only the ECB monthly averages are available, the yearly figure is the mean of those twelve monthly values.

Highs and lows are the highest and lowest daily fixing in the period, with the date on which each occurred.

Implied forward rates

The forecast page does not contain a forecast. It contains implied forward rates, which are computed from the fixings of a single day, 4 September 2026, using the standard money-market relationship for simple interest on an ACT/360 basis. In words: the forward rate between two dates is the rate that makes borrowing for the longer period equivalent to borrowing for the shorter period and then rolling over at the forward rate for the remainder. The exact expression is shown on that page. Because the inputs are the day's fixings, the forwards change every business day, and because longer maturities include a term premium they are not an unbiased estimate of anything.

Known differences versus official monthly averages

The monthly averages computed from the Bank of Finland daily series agree with the ECB Data Portal to the rounding shown in the tables in almost every month. In a small number of months the two differ by a hundredth of a percentage point or two. The most likely reasons are rounding of the daily inputs and differences in which days are included around holidays.

The largest difference identified so far is March 2022 for the 12-month maturity, where the computed average and the ECB figure differ by 0.014 percentage points. The site shows the computed average and, where available, the ECB figure alongside it, so you can see both. For a mortgage revision the figure that matters is the one your bank or the official source in your country publishes, not this site's computation.

The 24-hour delay

EMMI publishes the fixings at about 11:00 CET on each TARGET2 business day. Public republication is permitted only after 24 hours. The pipeline that builds this site runs once per business day after that window has passed, fetches the new fixing, validates it and rebuilds every page. The newest date you see, 4 September 2026, is therefore normally the last business day before today, and never today's fixing.

The validation gate

A build is published only if the new data passes five checks:

All five maturities are present for the newest date. A day with a missing maturity is not published.
The newest date is plausible: it must be the last TARGET2 business day, or the one before it to allow for the 24-hour delay.
Each value is within 0.50 percentage points of the previously published value for the same maturity. A larger jump is far outside anything seen in a single day and is treated as a parsing error until a human has looked at it.
No value is stale: on a business day, no maturity may be more than three business days old.
The row count never decreases.

If any check fails, the previous version of the site stays online and an issue is opened for the owner to inspect. No figure is ever corrected, smoothed or typed in by hand; a wrong value can only be fixed by re-fetching it from the source.

What is not here

This site does not hold intraday data, contributions of individual panel banks, or any maturity other than the five current ones. It does not hold the fifteen-maturity series that existed before 1 November 2013 beyond the five that survived. For the official record, the administrator is EMMI; for your own loan, the reference is whatever your contract names.