Corporation Tax

What happens to tax receipts when the tax rate is lowered?

Common belief

Many people think, as I did, that if you put the corporation tax rate up then the amount of tax collected from companies and paid to the treasury would also go up.

This was claimed in Labour’s manifesto for the 2017 when they said that they’d collect extra revenue this way.

but if it was truly the case then after the last decade of corporation tax rate decreases we’d expect the amount actually collected to decrease.

I wanted to find out…

Getting the data

So I went to the most recently published HMRC Statistics and pulled the receipts data from 2005 to 2016 and graphed it against the corporation tax rates in force over the period.

The light red line shows how the Googlesheet graph plotted the trend line against the actual total corporation tax receipts.

Notice that, at least in my very rudimentary analysis here, when the tax rate goes down, the amount collected goes up.

In the graph above you’ll see just that; the rate goes down over time, and the total receipts goes up.

About the author

Paul Connolly

Paul is a tax practitioner in the UK. He holds a practising certificate from the Association of Chartered Certified Accountants.

He also lectures accountancy and tax at the University of Northampton.

Paul volunteers as a board member of the Northamptonshire Credit Union.

He is also an open data researcher, producing datasets and programming open data driven applications.

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