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When should I review my business mobile contracts?

30 October 2026 · 5 min read

The timing, the warning signs and the rules: when a mobile contract review pays off, and what Ofcom's end-of-contract rules mean for your business.

The best window

Sixty to ninety days before each contract end date is the productive window. Early enough to choose calmly, close enough that a new agreement can start the day the old one expires, with no early termination fees and no gap in service.

After the end date, the contract rolls month to month, usually on worse terms. You gain flexibility but lose negotiating leverage, and month-to-month mobile tariffs are rarely priced to reward loyalty.

The warning signs a review is due

Handsets have been paid off but the tariff has not dropped. Data allowances go unused or repeatedly overrun. A mid-contract price rise has landed. Multiple contracts sit on different end dates so the bill never lines up. Or the same contract has been rolling for a year with nobody able to say what it includes.

Any one of these justifies a look; two or more mean the review is overdue.

What the rules give you

UK providers must send an end-of-contract notification when your fixed term finishes, telling you the contract has ended and what happens next. Providers must also give advance notice of price rises linked to inflation or indexation, and outside of price rises you generally remain liable for the agreed term.

In practice, the protection only works if somebody reads the notices. Most businesses do not have a person whose job that is, which is why renewal dates need tracking rather than memory.

How to run the review

Gather one recent bill per contract, list the handsets, tariffs and end dates, and check usage against allowances. Then decide the shape you actually need: pooled data across the team, aligned end dates so everything renews together, and tariffs matched to reality rather than to the year they were sold.

If that sounds like a chore, it is exactly what our contract reminder tool and telecoms reviews exist for. Send us the bills and we will tell you what is due, what is overpriced and what is fine as it is.

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