General legal information about contract terms in the UK, not legal advice.
Be Wise owl logoContract Glossary

Be Wise › Contract glossary › Variation

Variation

A variation clause says how the contract can be changed — usually only in writing signed by both parties.

Prepared by a retired English qualified solicitor (LLB, LLM) · reviewed · applies across the UK unless stated · how we draft

In more detail

The Supreme Court confirmed in Rock Advertising v MWB (2018) that such clauses are generally effective.

Put it into a contract

Be Contract Wise provides very powerful, carefully prepared tools to draft and review simple or complex contracts under the law of England and Wales or Scots law, explaining every clause in plain English.

England & Wales appScotland app

Reviewed 2026-09-24. General legal information, not legal advice.