A price escalation clause is a contract term that allows the price of goods or services to change during the contract when specific costs rise or fall. The change is usually linked to a published index, such as an ONS producer price index, so both sides know in advance how and when prices will be adjusted.
What it means
Fixed-price contracts leave the supplier carrying the risk of cost increases for the whole term. An escalation clause shares that risk in a predictable way. It sets out which costs are covered, such as materials, energy or labour, which index measures them, how often prices are reviewed, and any threshold or cap on movement.
A well-drafted clause works both ways, so prices can also fall if the index falls. That makes it easier for customers to accept.
How it works in a UK business
Manufacturers often link material costs to the Office for National Statistics producer price indices, which track the prices of materials and fuels bought by UK manufacturers and the prices of goods they sell. A common approach is to review prices quarterly or annually, and to apply the index change only to the share of the price that the cost actually represents.
Clauses are easiest to agree at contract renewal. Adding them mid-term usually needs a negotiated price review, often led by a commercial director working with the finance director.
Frequently asked questions
Are price escalation clauses common in UK contracts?
They are common in manufacturing, construction, energy and long-term supply contracts, where input costs can move significantly during the contract. They are less common in short contracts or where the buyer has strong bargaining power. Larger customers may accept them if the index, review dates and caps are clear and the clause works in both directions.
Which index should a price escalation clause use?
Choose an index that closely tracks the cost being covered and is published regularly by an independent body. For UK manufacturers, the ONS producer price indices are widely used because they are broken down by product group. Specific materials, such as steel or resin, sometimes need a more specialised index, so take advice first.
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Last updated: 11 November 2026