What happens if Scotland holds another independence referendum?
Scotland held an independence referendum in 2014 that resulted in a 55%-45% vote to remain in the UK. The question of whether and how another referendum could be held involves constitutional, legal, and political questions about the relationship between Westminster and Holyrood.
Strategic Briefing
This scenario involves United Kingdom — meaning its outcomes carry implications for global security, economic stability, and international governance. The 4 sections below examine capabilities, constraints, power dynamics, escalation logic, and real-world consequences.
Trust & Coverage
- Page Type
- Strategic scenario briefing
- Last Updated
- March 21, 2026
- Sources
- 2 linked
This scenario involves a major global power. Content is structured as a strategic briefing.
Scenario pages explain formal political processes and plausible dynamics, not predictions.
Briefing Sections
Section 1
The constitutional authority question
The UK constitution reserves constitutional matters to Westminster. The 2014 referendum was authorized through a Section 30 order under the Scotland Act, temporarily transferring the power to hold a vote. The UK Supreme Court ruled in 2022 that the Scottish Parliament cannot unilaterally legislate for a referendum on independence.
Section 2
A Section 30 order requires UK government agreement
For a legally binding referendum, the Scottish Government must request and the UK Government must grant a Section 30 order. The UK Government has refused further orders since 2014, creating a political impasse.
Section 3
A Yes vote would trigger complex negotiations
If a referendum were held and independence won, Scotland and the rest of the UK would face enormously complex negotiations over debt division, currency, borders, defence, EU membership, citizenship, nuclear deterrent relocation, and shared institutions.
Section 4
The political landscape has shifted
Brexit changed the independence debate by taking Scotland out of the EU against the majority preference of Scottish voters. However, support for independence has fluctuated, and the Scottish National Party has faced its own internal challenges.
Related Entities
country
United Kingdom
Constitutional monarchy and parliamentary democracy. Comprises England, Scotland, Wales, and Northern Ireland.
institution
UK Parliament
Bicameral legislature of the United Kingdom, consisting of the House of Commons and the House of Lords.
office
Prime Minister of the United Kingdom
Head of government of the United Kingdom. Leader of the party with a majority in the House of Commons.
Sources
- UK Supreme Court: Reference by the Lord Advocate (2022)
https://www.supremecourt.uk/cases/uksc-2022-0098.html
- Scotland Act 1998
https://www.legislation.gov.uk/ukpga/1998/46