Rent increase calculator (UK)
Enter your current rent and the proposed rise to see the percentage, the new rent and what it costs you over a year.
- Increase
- 10.0%
- New monthly rent
- £1,100.00
- Extra per month
- £100.00
- Extra per year
- £1,200
- New rent per week
- £253.85
Check what the rise really costs
A £100 rise on £1,000 a month is 10%, or £1,200 extra over a year. Seeing the annual cost helps you decide whether to accept, negotiate or challenge.
Compare the new rent with similar homes nearby using the rental value calculator, and check the new share of your pay with the affordability calculator.
Your rights when rent goes up in England
Under the Renters’ Rights Act, a landlord can normally raise rent once a year using a formal notice, with at least two months’ notice, and the new rent should be a fair market rent. If you think it is too high you can ask the First-tier Tribunal to decide.
Read our guide to Section 13 rent increases, or use the rent increase response letter to reply in writing.
Frequently asked questions
How do I calculate a rent increase percentage?
Subtract the old rent from the new rent, divide by the old rent and multiply by 100. For example, £1,100 compared with £1,000 is (1,100 − 1,000) ÷ 1,000 × 100 = 10%.
How often can a landlord increase rent in England?
Once a year under the Renters’ Rights Act, using the formal process and giving at least two months’ notice.
What can I do if I think the increase is too high?
Compare it with similar local rents, ask your landlord to reconsider, and if needed apply to the First-tier Tribunal before the new rent takes effect. Get advice from Shelter or Citizens Advice.
Is there a legal limit on how much rent can rise?
There is no fixed percentage cap in England. The test is whether the new rent is in line with the market rent for that property.
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UK Renters' Rights in 2026: What Your Landlord Must Provide
UK renters have more legal protection than ever — but only if you know what you're entitled to. Here's your updated guide to tenant rights in 2026.
How to Negotiate Rent With Your Landlord in the UK
Asking your landlord for a lower rent feels awkward. But it's more likely to work than you think — if you know how to approach the conversation.
Figures are indicative averages for 2026/27, rounded for planning, and are for information only. They are not financial, legal or housing advice. See our methodology for how the figures are produced. Last reviewed October 2026.