Publications / Guides

What is the Estimates cycle?

©UK Parliament/Jessica Taylor
©UK Parliament/Jessica Taylor

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'.

This is normally published each February and approved by the House of Commons in March (alongside the Supplementary Estimates – see below), in time for the start of the next financial year in April. It is a request from the Government for advance funding to cover departmental spending plans for the first four months of the next financial year.

The calculation of this sum is usually based on 45% of spending in the current financial year (the year during which the vote takes place). This sum is intended to be sufficient to tide the Government over until the Main Estimate is approved in the summer (see below), but not to be so large as to reduce entirely the importance of Parliament’s consideration of the Main Estimate.

These set out the Government’s formal annual spending plans for each department, and their agencies and arms-length bodies. The Main Estimates are normally presented to Parliament in April for approval by the House of Commons in early July (in the event of a general election in the Spring/early Summer the Estimates are usually presented to Parliament in July).

The advance funding approved through the earlier Vote on Account is deducted from each departmental estimate and the remainder (known as the ‘balances to complete’) is approved through Supply resolutions. These Resolutions are then given legal effect through a Supply and Appropriations (Main Estimates) Act. This legislation provides the legal basis for the issuing of money from the Consolidated Fund in accordance with the requested sums and spending limits set out in the Main Estimates.

These are the Government’s additional requests to Parliament to authorise new funding levels (or amend existing ones) and/or authorise changes in the purpose for which money is sought by departments. Supplementary Estimates are used, for example, to address costs arising from transfers of functions in machinery-of-government changes.

Supplementary Estimates are usually published in February for approval by the House of Commons in Supply resolutions by 18 March, to enable the funds to be spent before the end of the financial year. The Supply resolutions are then given legal effect in a Supply and Appropriation (Anticipation and Adjustments) Act.

These are exceptional requests made by the Government if a department spends money beyond the level or purpose approved by Parliament. In effect, MPs are asked to grant retrospective approval for the spending. Statements of Excesses are exceptional spending requests, not the norm, and usually arise as a result of an error, or where unavoidable spending has been incurred. Any such Statement automatically triggers a qualified audit opinion by the National Audit Office and a Public Accounts Committee report.

The graphic below - compiled by the House of Commons Library - sets out where the Main Estimate and Supplementary Estimates and the accompanying Supply and Appropriations Bills fit in a normal financial cycle.

Stages of the financial cycle, from Revised Government spending plans for 2022/23, Research Briefing (No. CBP 9730), 1 March 2023. ©House of Commons Library
Stages of the financial cycle, from Revised Government spending plans for 2022/23, Research Briefing (No. CBP 9730), 1 March 2023. ©House of Commons Library

News / Rwanda Bill becomes law: but what was really going on behind the scenes in Parliament? - Parliament Matters podcast, Episode 31

The Rwanda Bill has made it over the parliamentary finishing line but not without some last-minute drama. We talk to the SNP’s Alison Thewliss MP about what went on in a small room, behind the Speaker’s Chair, away from the cameras!

26 Apr 2024
Read more

Events / The inaugural Churchill-Attlee Democracy Lecture, to be given by the Rt Hon Theresa May MP

To mark the Hansard Society’s 80th anniversary we are launching the Churchill-Attlee Democracy Lecture in honour of our first members, Winston Churchill and Clement Attlee. The inaugural lecture will be given by former Prime Minister the Rt Hon Theresa May MP. This is a fundraising event for our 80th Anniversary Appeal. Date & location: Tuesday 14 May 2024, 7:00-8:15pm, Westminster (venue to be announced) Tickets: £25

04 Apr 2024
Read more

Briefings / General election rules and regulations: what has changed?

With a general election on the horizon there has been a spate of new legislation and regulations to implement changes to the way the election will be run, with consequences for voters and electoral administrators. Parliament has not always had a role in approving these changes. This briefing sets out the core changes to the electoral process that have been implemented since the last general election in 2019, the role that Parliament has played in scrutinising and approving them, and the risks arising from these changes.

26 Apr 2024
Read more

Blog / How should Parliament handle the Seventh Carbon Budget - and why does it matter?

The Climate Change Act 2008 established a framework for setting carbon budgets every five years. But the role of Parliament in approving these budgets has been widely criticised, including by the Prime Minister. The Environmental Audit Committee has proposed improvements in the scrutiny process to ensure effective climate action, particularly in the context of the UK’s commitment to achieving 'Net Zero' emissions by 2050. These reforms will significantly alter the way Parliament handles the Seventh Carbon Budget in 2025.

18 Apr 2024
Read more

Blog / Creeping ministerial powers: the example of the Tobacco and Vapes Bill

The Government’s flagship Tobacco and Vapes Bill will ban the sale of tobacco to anyone born after 2009. The genesis of the delegated powers in the Bill – dating back a decade - tells an important story about the way in which incomplete policy-making processes are used by Ministers to seek ‘holding’ powers in a Bill, only for that precedent to then be used to justify further, broader powers in subsequent Bills. This ‘creeping’ effect in the legislative process undermines parliamentary scrutiny of ministerial action.

15 Apr 2024
Read more