Almost every landlord starts with a spreadsheet — it’s free, familiar and flexible. But as your portfolio grows, the “free” spreadsheet quietly costs you hours of admin and real money at tax time. Here’s an honest, side-by-side look at tracking rental income in a spreadsheet versus purpose-built software like BodmasBooks.
1. Setting up your books
Spreadsheet: you build every tab, formula and category yourself. It works, but it’s fragile — one deleted cell or wrong formula can throw off your totals without you noticing.
BodmasBooks: per-property books are ready the moment you add a property. Income and expense categories are already aligned to what SARS expects.
2. Recording income and expenses
Spreadsheet: every rent payment and expense is typed in by hand. Miss a month or fat-finger a figure and your records drift out of sync with your bank.
BodmasBooks: transactions are captured and categorised as they happen, per property, so your books always reflect reality.
3. Tracking arrears and deposits
Spreadsheet: there’s no automatic alert when a tenant falls behind — you only spot arrears when you go looking. Deposits are easy to lose track of.
BodmasBooks: arrears and deposits are tracked automatically, so you know exactly who owes what without hunting through rows.
4. Preparing for SARS (ITR12)
Spreadsheet: at filing time you manually total each property, separate deductible expenses, and hope everything reconciles. This is where most landlords lose days — or miss legitimate deductions.
BodmasBooks: a SARS-ready ITR12 summary is produced for you, with income and allowable deductions already grouped per property. Filing becomes copy-and-paste.
5. Sharing with your accountant or co-owners
Spreadsheet: you email versions back and forth, and it’s never clear which copy is the latest.
BodmasBooks: invite your bookkeeper or accountant with role-based access, and generate professional owner statements as PDFs on demand.
6. The real cost
A spreadsheet has no monthly fee, but it costs you time every week and risk every tax season. Purpose-built software costs a small, predictable monthly amount — from R99/month with BodmasBooks — and gives you those hours back, plus cleaner, audit-ready records.
When is a spreadsheet still fine?
If you have a single property and enjoy manual admin, a spreadsheet can work. The moment you add a second property, deal with arrears, or want stress-free SARS filing, software pays for itself.
Try it for yourself
See your rental income organised per property with a SARS-ready summary from day one. Start a free 30-day trial of BodmasBooks — no credit card required — or compare the plans.
This article is general information, not tax or financial advice. Consult a registered tax practitioner for your specific circumstances.
