Rental management software for South African landlords
Most rental software tells you what happened: who paid, what is outstanding, what the totals were. That is bookkeeping. The harder question, which of my tenants is about to become a problem, is the one that costs money, and it is usually answered by memory and gut feel.
RenDex is built around answering that question from the evidence you already have: your own tenants' payment history.
The Rent Reliability Index
Every tenant gets a score from 0 to 100, built from six weighted signals: how punctually they pay, how consistently, how deep any delinquency runs, how quickly they recover from a missed month, how accurate the amounts are, and how long they have been with you. Recent months count for more than old ones, and a tenant with only a couple of months of history is pulled toward your portfolio average rather than being flattered or punished by a small sample.
The point is not the number. It is that a landlord with nine units can open one screen and see, in a few seconds, which two need attention this month, and why.
Built around how rent actually arrives
South African tenants send proof of payment. A PDF from FNB, Capitec, Absa, Standard Bank or Nedbank arrives in your inbox, one at a time, all month. Most software assumes you sit down at month-end with a bank statement and reconcile, which is not what the day looks like.
RenDex reads those POPs directly. Drop in the PDFs your tenants sent, and it pulls the amount, date and reference off each one, matches it to a tenant and to the month it settles, and shows you everything before anything is saved. Bank statements and CSV exports import the same way when you would rather do a month in one pass.
Invoices in your own name
Plenty of landlords rent out property in their personal capacity, not through a company. RenDex issues invoices under your own name or your business name, whichever you actually trade as, with your banking details and payment reference on them. Rent, levies, water and electricity can each be a line, with the variable ones filled in monthly.
Deposits, inspections and the end of a tenancy
The end of a lease is where disputes happen. RenDex keeps the deposit you are holding against the tenant, lets you itemise deductions after the outgoing inspection (cleaning, damages, arrears), attach the contractor invoice or receipt behind each one, and works out the refund due as you type. If the deductions come to more than the deposit, it tells you what is still owed rather than showing a negative refund. Ingoing and outgoing inspection reports attach to the tenancy, so they are there months later when you need them.
A SARS-ready income certificate
At tax time RenDex produces an annual income certificate for the South African tax year, 1 March to the end of February rather than the calendar year, with rental income received, expenses by category, the net position, and a per-property breakdown. It states plainly that it is a record of what you captured, not tax advice. Your practitioner still decides what is deductible.
Your tenants' data, handled properly
Tenant information is personal information under POPIA, and you are the responsible party for it. RenDex acts as your operator: every table is scoped to your account and enforced at the database, the AI analysis receives anonymised figures with no names, contact details or ID numbers, and there is a real deletion routine behind the retention promise in our privacy policy rather than a good intention.
Try it
RenDex is free while it is in early access. You can add a unit with nothing more than a name and a monthly rent. The tenant's ID number, phone and email are optional, so you can get your portfolio in from a rent roll and fill in the rest later.