This page shows a summary of the historic SONIA (Sterling Overnight Index Average) interest rates for 2021. The first table below shows the first, last, highest, lowest and average SONIA interest rate for the year 2021. If you look further down the page, you can find more information about the development of the SONIA interest rates over 2021.
First
|
Last
|
Highest
|
Lowest
|
Average
|
|
---|---|---|---|---|---|
SONIA |
0.0479 %
|
0.1906 %
|
0.1938 %
|
0.0450 %
|
0.0547 %
|
SONIA interest rates are administered and published by The Bank of England. The Bank of England publishes SONIA data under Open Government Licence (nationalarchives.gov.uk). Use of the data is at your own risk.
You will find a chart and a table below with additional information about the development of the SONIA interest rates for each month in 2021.
First
|
Last
|
Highest
|
Lowest
|
Average
|
|
---|---|---|---|---|---|
January
|
0.0479 %
|
0.0529 %
|
0.0529 %
|
0.0479 %
|
0.0494 %
|
February
|
0.0480 %
|
0.0512 %
|
0.0512 %
|
0.0480 %
|
0.0486 %
|
March
|
0.0488 %
|
0.0466 %
|
0.0497 %
|
0.0466 %
|
0.0486 %
|
April
|
0.0475 %
|
0.0509 %
|
0.0509 %
|
0.0475 %
|
0.0486 %
|
May
|
0.0496 %
|
0.0516 %
|
0.0516 %
|
0.0483 %
|
0.0495 %
|
June
|
0.0498 %
|
0.0466 %
|
0.0505 %
|
0.0466 %
|
0.0498 %
|
July
|
0.0496 %
|
0.0506 %
|
0.0510 %
|
0.0496 %
|
0.0506 %
|
August
|
0.0504 %
|
0.0502 %
|
0.0510 %
|
0.0498 %
|
0.0504 %
|
September
|
0.0503 %
|
0.0479 %
|
0.0509 %
|
0.0479 %
|
0.0500 %
|
October
|
0.0500 %
|
0.0503 %
|
0.0514 %
|
0.0481 %
|
0.0502 %
|
November
|
0.0477 %
|
0.0455 %
|
0.0483 %
|
0.0455 %
|
0.0468 %
|
December
|
0.0459 %
|
0.1906 %
|
0.1938 %
|
0.0450 %
|
0.1141 %
|