Can a landlord increase the rent during a lease?
In South Africa, rent can only be increased in line with what the lease itself says. If the written lease has an escalation clause (for example, "rent escalates by 8% on each anniversary"), that clause controls. Without an escalation clause, the rent stays the same until the lease ends.
Rental Housing Act and the CCMA-style Rental Tribunal
The Rental Housing Act 50 of 1999 (as amended) governs the landlord-tenant relationship in residential rentals. Each province has a Rental Housing Tribunal that hears disputes about "unfair practices" — which can include exploitative or arbitrary rental increases. Tribunals are free to use and their rulings are binding.
Notice periods for a rental increase
- Fixed-term leases — increases happen on the dates and at the rates in the lease.
- Month-to-month leases — the landlord must give at least one full calendar month's written notice before the new rent takes effect.
- Renewals — before the lease ends, both parties should agree the new rent in writing. Best practice: send the renewal offer 60–90 days before expiry.
What's a "reasonable" escalation?
There is no statutory cap, but Tribunals look at market rent in the area, the condition of the property, and CPI. Most SA residential leases escalate between 6% and 10% per year. Commercial leases commonly use CPI + a margin, or a fixed escalation.
Practical checklist for landlords and agencies
- Always put the escalation in writing in the lease.
- Send increase notices in writing, with proof of delivery.
- Keep the increase reasonable and benchmarked to comparable units.
- Update the tenant's invoice and debit order before the new rent kicks in.
- Record the increase against the lease — Propally does this automatically.
This guide is general information for South African landlords and agencies and does not constitute legal advice. For specific situations, consult an attorney or your provincial Rental Housing Tribunal.