How to Invoice as a Plumber in South Africa
Published 15 January 2025
A practical guide for SA plumbers on creating VAT-compliant invoices, what to include, and how to get paid faster.
What every plumbing invoice needs
A valid tax invoice in South Africa must include your business name, address, VAT number (if registered), the customer's details, a unique invoice number, the date, a description of work done, the amount excluding VAT, the VAT amount at 15%, and the total including VAT.
For plumbing work, break down labour and materials separately. Clients appreciate transparency — listing parts like geysers, pipes, and fittings alongside labour hours builds trust and reduces payment disputes.
VAT registration for plumbers
If your plumbing business turnover exceeds R1 million in any 12-month period, you must register for VAT with SARS. Voluntary registration is also available below that threshold.
Once registered, every invoice must be a tax invoice showing VAT. The Trade Kit handles the calculation automatically so you can focus on the job.
Getting paid faster
Send invoices immediately after completing work — don't wait until month-end. Include your banking details and payment terms on every invoice.
A friendly payment reminder email 7 days after the due date significantly improves collection rates. The Trade Kit Pro automates these reminders for you.