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UK National Debt Since 1900

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You can display a maximum of five data series at once.

Spending Units: By default, public spending is displayed in billions of pounds. By using a dropdown control in the table heading you can select £ bln (2019), and percent of GDP.
Chart Title: You can create a title for your chart. Use the title text box to enter a title and click the button to the right of the text field.
UK or Country: By default, the chart shows overall United Kingdom government spending. But you can select spending for individual countries by selecting the country dropdown control in the table heading.
View: There are two ways to view the spending data. The default view breaks down spending into functions. There is also a COFOG view that categorizes spending using the UN standard methodology.
General Help: You can use controls on the table below to change the following variables: spending units—e.g. percent of GDP, etc.— and year. You can select the HM Treasury Budget fiscal year.
Line/Bar: By default, the data series are displayed as line charts. But you can also select a bar chart.
Data Stack: By default, the data series are “stacked” when displayed on the chart. But you can change the setting to “un stack” the data series.
Chart Size: By default, the chart is displayed at medium size. But you can use the dropdown control to change the size.
Color: By default charts are displayed with color data lines and fill. You can change this to grayscale if you want.

Data Range

Start Year: You can select any start year you want using the dropdown control in the table heading. At the top and bottom of the dropdown only years ending in “0” are shown. Select a start year to get close, then select the start year you want.
End Year: You can select any end year you want using the dropdown control in the table heading. At the top and bottom of the dropdown only years ending in “0” are shown. Select an end year to get close, then select the end year you want.
Category (max 7)Sub-categoryCentral 
Gov.
General 
Gov.
Local 
Auth.
Total   
 
Data Series: You can select up to five data series to display on your chart. Click on a checkbox to add or delete a data series from the chart. Once you get to five data series you will have to delete a series before you can add one. Click a [+] expand control to drill down to more detailed data series.
 
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If you’d like to create your own custom chart of spending data you should use the table above to make your selections.

  • Select the year range: Select the start year and the end year you want by selecting the years you want in the two year dropdown boxes.
  • Select spending items: Just select the spending item you want from the dropdown control. Then click a radio button to select the level of government: federal, state, or local. If you select from the < select > you will add another data series to your chart. Up to 5 data series are allowed at once. Click the “X” link to remove a data series from the chart.
  • Select units: You can select the display in billions of nominal (i.e. inflated) pounds, billions of real (i.e. year 2019) pounds, or as percent of GDP.
  • Choose chart features: You can select the size of the chart, switch from bar chart to line chart, select color or black and white, stacked or not. You can also blow up the chart to fill the screen with the “fullsize” tab control above the chart display.

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Download Data File

 

Click button to download CSV file of dataset in chart.

Download Tab-delimited Data

Copy and Paste: Here is the dataset you have just charted. The table also includes nominal or chained GDP for each year charted. If you’d like the data for analysis, just copy the tab-delimited text in the textbox below (click cursor in text box, then press ctrl-A then press ctrl-C) and paste it into your spreadsheet.

View Data Series

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Below is a formatted version of the dataset displayed in the chart. Included is a column of nominal or chained GDP for each year charted.

UK National Debt Since 1900
Fiscal Years 1900 to 2016
YearInflationGDP-UK
£ billion nominal
Population-UK
million
Public Net Debt -total
£ billion nominal
19004.12MW gdp41.1550.57a
1901-1.43MW gdp41.5380.63a
1902-1MW gdp41.8930.68a
1903-0.28MW gdp42.2470.72a
1904-1.08MW gdp42.6110.71a
19050.46MW gdp42.9810.71a
19061.42MW gdp43.3610.70a
19071.54MW gdp43.7380.68a
1908-0.72MW gdp44.1240.67a
1909-0.35MW gdp44.5200.66a
19101.43MW gdp44.9160.68a
19110.6MW gdp42.1900.65a
19122.6MW gdp42.3740.64a
1913-0.16MW gdp42.5820.63a
1914-0.81MW gdp42.9570.62a
191514.34MW gdp41.3621.08a
191614.79MW gdp40.5362.11a
191724.32MW gdp39.7813.99a
191816.81MW gdp39.5825.85a
191915.24MW gdp42.9447.41a
192016.64MW gdp43.6467.81a
1921-8.17MW gdp43.9047.56a
1922-14.46MW gdp44.3327.64a
1923-7.53MW gdp44.5637.73a
1924-2.09MW gdp44.8867.63a
1925-0.26MW gdp45.0407.58a
1926-0.42MW gdp45.2187.55a
1927-1.94MW gdp45.4327.54a
1928-0.89MW gdp45.6227.52a
1929-0.84MW gdp45.7317.49a
1930-0.84MW gdp45.8897.46a
1931-1.83MW gdp46.0747.40a
1932-2.24MW gdp46.3357.42a
1933-1.39MW gdp46.5207.63a
1934-0.87MW gdp46.6667.81a
19350.79MW gdp46.8697.79a
19360.9MW gdp47.0817.78a
19373.46MW gdp47.2897.79a
19382.36MW gdp47.4948.01a
19392.89MW gdp47.5488.15a
194011.13MW gdp46.0297.90a
194111.46MW gdp44.87010.37a
19427.49MW gdp44.32313.04a
19434.44MW gdp48.26215.82a
19445MW gdp48.46018.56a
19451.64MW gdp48.66921.37a
19462.81MW gdp48.98823.64a
19479.08MW gdp49.53925.63a
19486.34MW gdp50.03325.62a
19493.19MW gdp50.33125.17a
19501.34MW gdp50.38225.80a
19518.55MW gdp50.28725.92a
19527.11MW gdp50.42925.89a
19531.83MW gdp50.59326.05a
19541.13MW gdp50.76526.58a
19554.91MW gdp50.94626.93a
19567.05MW gdp51.18427.04a
19574.08MW gdp51.43027.01a
19583.7MW gdp51.65327.23a
19590.76MW gdp51.95627.38a
19601.11MW gdp52.37327.73a
19613.88MW gdp52.80728.25a
19623.65MW gdp53.29228.67a
19631.55MW gdp53.62529.85a
19643.77MW gdp53.99130.23a
19656.05MW gdp54.35030.44a
19665.42MW gdp54.64331.34a
19673.03MW gdp54.95931.99a
19684.44MW gdp55.21434.19a
19696.75MW gdp55.46133.98a
19709.92MW gdp55.63233.08a
19718.57MW gdp55.92833.44a
19727.9MW gdp56.09735.84a
19739.39MW gdp56.22336.88a
197415.8MW gdp56.23640.46a
197525.7MW gdp56.22652.10a
197616.02MW gdp56.21664.70a
197714.17MW gdp56.19073.60a
197812.31MW gdp56.17879.50a
197914.98MW gdp56.24088.60a
198019.69MW gdp56.33098.20a
198112.31MW gdp56.358113.80a
19828.16MW gdp56.291125.20a
19835.78MW gdp56.316132.50a
19845.34MW gdp56.409143.60a
19855.63MW gdp56.554157.00a
19864.6MW gdp56.684162.50a
19875.82MW gdp56.804167.80a
19886.47MW gdp56.916167.40a
19898.21MW gdp57.077153.70a
19908.58MW gdp57.238151.90a
19916.64MW gdp57.439151.10a
19923.29MW gdp57.585165.80a
19933.07MW gdp57.714201.90a
19941.91MW gdp57.862249.80a
19952.68MW gdp58.025290.00a
19964.24MW gdp58.164322.10a
1997-0.15MW gdp58.314347.00a
19981.33MW gdp58.475360.40a
19991.42MW gdp58.684363.10a
20001.17MW gdp58.886353.30a
20011.55MW gdp59.113322.00a
20022.16MW gdp59.366330.60a
20032.46MW gdp59.637369.20a
20042.65MW gdp59.950404.50a
20053.02MW gdp60.413460.90a
20062.86MW gdp60.827499.40a
20072.31MW gdp61.319535.20a
20083.42MW gdp61.824567.20a
20090.871582.762.261787.20a
20101.321558.162.7601027.90a
20111.941627.263.2851168.70a
20121.781672.363.7051261.20a
20131.881727.564.1061366.20a
20141.961800.864.5971461.10a
20151.251879.565.1101551.80a
20160.741931.565.6481595.00a

Legend:
a - actual outturn

Data Sources for 1900:
GDP: Measuring Worth - UK GDP
Spending: B.R. Mitchell, British Historical Statistics
Debt: B.R. Mitchell, British Historical Statistics

Data Sources for 2016:
GDP: OBR EFO supp. economy tables
Spending: HM Treasury PESA
Debt: OBR Public Finances Databank

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Spending Data Sources

Expenditure data since 1983 comes from HM Treasury’s Public Expenditure Statistical Analysis reports.

Detailed table of spending data sources here.

Gross Domestic Product data comes from measuringworth.com.

Central government spending data begins in 1692.

Local authority spending data begins in 1868.

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On July 23, 2025, HM Treasury published its Public Expenditure Statistical Analyses (PESA) for 2025. ukpublicspending.co.uk uses the PESA tables of public spending at the "sub-function" level as its major data source for UK public spending.

ukpublicspending.co.uk has now updated its spending tables using data from PESA 2025. The update includes outturn spending data for 2023-24, and plans data for 2024-25. ukpublicspending.co.uk uses PESA's Table 6.4 for Central Government expenditure, Table 7.4 for Local Authority expenditure, and Table 8.3 for Public Corporation capital expenditure.

Since HM Treasury does not provide plans estimates for future Local Authority spending, ukpublicspending.co.uk provides "guesstimates" instead. This is done by extending the percentage increase in spending between 2023-24 and 2024-25 for each sub-function for the plans year. It is assumed that local authority spending reductions will not carry through to plans years.

Country and Region spending has been updated up to 2023-24. These are obtained from Chapters 9 and 10 in the PESA document.

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