Last updated: April 2026
Rules vary across the UK
This checker covers England, Wales, and Scotland at a planning level. England Section 13 notices served before 1 May 2026 usually followed the old Form 4 notice period. From 1 May 2026, assured periodic rent increase notices generally require at least 2 months. Wales generally requires 6 months, and Scotland generally requires 3 months.
Notice validity verdict
The new rent of £1,100 takes effect on 1 July 2026. You have until 1 July 2026 to challenge it at the tribunal.
OK: At least 1 year since tenancy started
Section 13 rent increases generally cannot be used in the first year.
OK: Sufficient notice period given
2 month minimum for this jurisdiction and tenancy type.
OK: Increase date aligns with rent period
Monthly rent increases should usually start on the rent due day.
OK: Not increased within last 12 months
Most periodic tenancies can only be increased once per year.
OK: Fixed term restrictions checked
During a fixed term, a rent review clause or agreement is usually needed.
Challenge deadline
44 days remaining
Apply before the new rent takes effect if you want the First-tier Tribunal to decide the market rent.
For periodic tenancies in England, notices served before 1 May 2026 usually followed the old Form 4 period. From 1 May 2026, assured periodic rent increase notices generally require at least 2 months. Wales and Scotland have longer notice periods.
Yes. You can apply before the increase date and ask the tribunal to set the open market rent. The tribunal can set the rent higher, lower, or the same.
An invalid notice is not enforceable. Common problems include insufficient notice, an increase during the first year, a misaligned increase date, or a recent previous increase.
Check the latest CPI or local market rent evidence before deciding whether to challenge.
This calculator is designed to help you understand the likely number before you make a decision or start an application.
Your result should be checked against official UK guidance, especially if your circumstances include dependants, exemptions, prior leave, or a complex immigration history.
Treat the figure as a planning tool rather than legal advice. Where the answer affects an application deadline or major payment, speak to an authorised adviser.
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