Rent Increase Calculator

Divide the increase by the current rent and multiply by 100. Rent going from £1,200 to £1,272 is £72 ÷ £1,200 = 6%.

It depends entirely on where you are. Some cities and countries cap annual increases, some tie them to an inflation index, and many leave it to the market with only a notice requirement. Check your local tenancy rules.

Jurisdiction-specific, commonly one to three months, and often longer for larger increases. Notice given incorrectly can invalidate the increase entirely, so the form and timing matter as much as the amount.

In many places yes, through a tribunal or rent officer, usually on the basis that the new rent exceeds the market rate for comparable properties. Comparable asking rents nearby are the evidence that actually works.

Landlords generally argue yes, since their costs do. Tenants generally note that wages often do not. The real-terms figure here shows which side of inflation the increase lands on, which is the fact the argument turns on.

One at or near local market movement for comparable properties, which is a question of evidence rather than principle. A rise well above local market rates is where a challenge has the best prospects.

A term in the tenancy setting when and how rent can rise — often annually, sometimes tied to an index. Where one exists it usually governs, and increases outside its terms may not be valid.

During a fixed term, usually only if the agreement provides for it. In a periodic tenancy, generally yes with proper notice. The mechanism matters as much as the amount.

One tied to a published inflation measure rather than set by the landlord. It is predictable in method and can still be large in a high-inflation year, which is when tenants discover what they agreed to.

Listings for similar properties in the same area, filtered to the same bedroom count and condition. Asking rents run above achieved rents, so treat them as an upper bound rather than the market.

A retaliatory or excessive increase is challengeable in many jurisdictions, particularly following a repair complaint. Whether protection exists and how to invoke it is entirely local.

It is often worth trying, particularly if you have paid on time and the property has needed little. Landlords face real costs in a void period and a re-let, which is the leverage a reliable tenant actually has.