The IFS Green Budget 2019, in association with Citi and the Nuffield Foundation, is edited by Carl Emmerson, Christine Farquharson and Paul Johnson, and copy-edited by Judith Payne. The report looks at the issues and challenges facing Chancellor Sajid Javid as he prepares for his first Budget.

This working paper describes how the IFS's model of the UK's long-run public finances (and those of its constituent nations) is constructed. Our model projects tax revenues, public spending and hence public borrowing and debt up to 2062-63. This is done for the UK as a whole and also separately...