Publications / Guides

How does Parliament approve Government spending? A procedural guide to the Estimates process

Pound coins
Pound coins

Estimates are the Government's spending plans which are presented to Parliament for approval every year.

Each Government department produces its own annual Estimate, and HM Treasury compiles and publishes them together in a single Estimates report for presentation to Parliament.

Government requests to Parliament for funds for departments are made in at least two and sometimes as many as four stages throughout the year, in a process known as the 'Estimates cycle'.

Given the dependence of all forms of government activity on the availability of public finances, the Estimates process underpins all other forms of accountability and goes to the heart of the relationship between Parliament and Government.

Rishi Sunak at the Despatch Box. ©UK Parliament/Jessica Taylor

What is the Estimates cycle?

Multi-year Spending Reviews set out headline spending plans for each Government department. Drawing on the plans outlined in the Spending Review, the Government then makes formal requests to Parliament for funds for departments for the financial year ahead. These requests are made in at least two and sometimes as many as four stages throughout the year in a process known as the 'Estimates Cycle'.

House of Commons Select Committee session. ©UK Parliament/Catherine Bebbington

How does Parliament debate Government spending plans?

Departmental Estimates are scrutinised by departmental select committees in the House of Commons. Three days (other than Fridays) are then allotted in each parliamentary session for the consideration of Estimates in the Commons Chamber. These are known as Estimates Days. Any MP can bid, via the Backbench Business Committee, for an Estimates Day debate on one of the departmental Estimates.

House of Commons chamber. ©UK Parliament / Jessica Taylor

How does Parliament approve Government spending plans?

Approval of the Estimates (Main or Supplementary) comes first in the form of a Supply resolution. However, such resolutions have political force, but they are not law. Consequently, legislation is also required - in the form of a Supply and Appropriation Bill - before the departmental expenditure set out in the Estimates is legally authorised by Parliament.

The House of Commons, 1833, painting by Sir George Hayter. ©National Portrait Gallery, London

Why does Parliament approve Government spending?

The legal basis for parliamentary control of Crown (i.e. Government) expenditure dates back to the Glorious Revolution of 1688-89 and Parliament’s decision to legalise the standing army but provide its expenses only for 12 months in advance. Over time, this principle – that expenses be granted only for the year ahead – was extended to other areas of government expenditure until, by 1830, all civil government expenditure was provided on this basis. Six key principles or rules now govern what has become known as the Estimates process.

Photo of pound notes. ©Adobe Stock/kamui29

What is a Money Bill?

A Money Bill is defined in Section 1(2) of the Parliament Act 1911. It is a public bill which in the opinion of the Speaker of the House of Commons contains only provisions dealing with national taxation public money or loans. If a bill is certified as a Money Bill by the Speaker, and is passed by the House of Commons, it will become law after one month, with or without the approval of the House of Lords.

18:18pm, 7 March 2023

Hansard Society (2023), The Estimates: A procedural and constitutional guide, (Hansard Society: London)

Blog / Once again, there is still no alternative: the costed proposals for Restoration and Renewal of the Palace of Westminster

The Restoration and Renewal Client Board’s latest report once again confirms what Parliament has known for nearly a decade: the cheapest, quickest and safest way to restore the Palace of Westminster is for MPs and Peers to move out during the works. The “full decant” option was endorsed in 2018 and reaffirmed repeatedly since. Remaining in the building could more than double costs, extend works into the 2080s, and increase risks to safety, accessibility and security. With the Palace already deteriorating and millions spent each year on patchwork repairs, further delay would itself be an expensive course of action, one that defers decisions without offering a viable alternative.

07 Feb 2026
Read more

News / A Humble Address: How MPs confronted the Mandelson scandal - Parliament Matters podcast, Episode 130

It has been a bruising week for the Prime Minister after the House of Commons backed a Conservative “Humble Address” demanding documents on Sir Keir Starmer’s vetting of Lord Mandelson for the Washington Ambassadorship. We explain how the procedure works, what role the Intelligence and Security Committee may play in decisions on disclosure, and how legislation to strip a peerage could be introduced. Plus, the latest on the Restoration and Renewal of Parliament as yet another report lands with a new set of costings. Listen and subscribe: Apple Podcasts · Spotify · Acast · YouTube · Other apps · RSS

06 Feb 2026
Read more

News / Why MPs can’t just quit: The curious case of the Chiltern Hundreds - Parliament Matters podcast, Episode 129

Why can’t MPs simply resign, and why does leaving the House of Commons still involve a medieval-sounding detour via the Chiltern Hundreds or its less glamorous cousin the Manor of Northstead? This week we unravel the history, constitutional logic and legal fudges behind this curious workaround, with some memorable resignations from the past along the way. We also assess the Government’s legislative programme as the Session heads toward its expected May close, including the striking lack of bills published for pre-legislative scrutiny. Finally, as Parliament begins the five-yearly process of renewing consent for the UK’s armed forces, we examine why an Armed Forces Bill is required and hear from Jayne Kirkham MP on how her Ten Minute Rule Bill helped extend the new Armed Forces Commissioner’s oversight to the Royal Fleet Auxiliary. Listen and subscribe: Apple Podcasts · Spotify · Acast · YouTube · Other apps · RSS

01 Feb 2026
Read more

News / Assisted dying bill: How could the Parliament Act be used? - Parliament Matters podcast, Episode 128

As the assisted dying bill grinds through the House of Lords under the weight of more than a thousand amendments, Lord Falconer has signalled that time is running out. With the Bill unlikely to complete its Lords stages this Session, he has openly raised the possibility of using the Parliament Act to override the upper House in the next Session. In this episode we explore what that would mean, how it could work in practice, and the political choices now facing ministers and Parliament. Listen and subscribe: Apple Podcasts · Spotify · Acast · YouTube · Other apps · RSS

30 Jan 2026
Read more

News / Who really sets MPs’ pay – And why you might be wrong about it. A conversation with Richard Lloyd, chair of IPSA - Parliament Matters podcast, Episode 126

What are MPs actually paid and what does the public fund to help them do their job? In this conversation with Richard Lloyd, chair of the Independent Parliamentary Standards Authority (IPSA) we explore the delicate balance between supporting MPs to do their jobs effectively and enforcing strict standards on the use of public money. We discuss how IPSA has shifted from a rule-heavy “traffic cop” to a principles-based regulator, why compliance is now very high, and the security risks and pressures facing MPs‘ offices as workloads rise and abuse becomes more common. Listen and subscribe: Apple Podcasts | Spotify | ACAST | YouTube | Other apps | RSS

21 Jan 2026
Read more