A practical glossary for South African freelancers, contractors, and small service teams. Definitions are written in plain English; for anything that changes year-to-year (VAT thresholds, tax brackets, filing dates), check the official SARS site for the current figures.
Tax invoice
A SARS-compliant invoice carrying the fields a VAT-registered vendor is required to include — the words 'Tax Invoice', supplier and buyer details, VAT numbers (when applicable), a sequential invoice number, the date, a description of goods or services, the amount, the VAT charged, and the total. For non-VAT-registered freelancers, a regular invoice is usually sufficient.
Pro forma invoice
A preliminary bill of sale sent to a buyer before goods or services are delivered. It is not a demand for payment and is not a valid tax invoice for VAT purposes — it is used to confirm pricing and scope. In practice, many South African operators use a quote for the same purpose.
Quote (vs estimate)
A quote is a firm offer of price and scope; once accepted, it forms the basis of the agreement. An estimate is an informed approximation that can move once the work begins. Use a quote when you want certainty for both sides; use an estimate when the scope is genuinely unknown.
Credit note
A document issued to reduce or reverse an amount previously invoiced — for example, when a discount is agreed after the fact or an item is returned. Credit notes carry similar disclosure requirements to tax invoices and should reference the original invoice they correct.
Debit note
A document used to increase an amount previously invoiced, typically when additional charges or under-billings are identified after the original invoice was issued. Less common than credit notes in day-to-day SA freelance work, but still relevant when invoice corrections move upward.
VAT
Value-Added Tax, charged in South Africa at a standard rate of 15% on most goods and services. Mandatory registration applies once a business's annual taxable turnover crosses a SARS-set threshold (currently around R1 million; check SARS for the up-to-date figure). Voluntary registration is possible at lower turnover levels.
VAT inclusive vs exclusive
VAT-inclusive pricing means the price quoted already contains the 15% VAT; VAT-exclusive pricing means the VAT is added on top. South African consumer pricing is usually quoted inclusive; business-to-business pricing is often exclusive. Always be explicit on the invoice which approach is used.
Zero-rated supply
A supply of goods or services that is taxable but charged at a VAT rate of 0% — for example, certain exports and specific basic foodstuffs. The supplier may still claim input VAT credits. Zero-rated is not the same as exempt.
Exempt supply
A supply that falls outside the VAT system entirely — for example, certain financial services and residential rentals. No VAT is charged, and the supplier cannot claim input VAT credits on related costs.
SARS
The South African Revenue Service — the body that administers income tax, VAT, PAYE, and other taxes in South Africa. SARS sets the rules for what a valid tax invoice must contain, how VAT is filed, and how provisional tax is calculated.
Provisional tax
A system for paying income tax in advance, in two compulsory periods per tax year (with an optional third). Sole proprietors and freelancers whose taxable income comes from sources other than a salary are usually provisional taxpayers. Check SARS for current filing dates.
Sole proprietor
An individual operating a business in their own name, without a separate legal entity. The business's income is the person's income for tax purposes. Most South African freelancers start as sole proprietors before choosing to incorporate.
Withholding tax
Tax that a payer is required to deduct from a payment to a recipient and pay over to SARS on the recipient's behalf — common with payments to non-residents (royalties, interest, certain services). South African resident-to-resident freelance invoicing usually does not involve withholding tax, but cross-border work might.
Statement of account
A summary document a supplier sends a client showing all invoices issued, payments received, and the outstanding balance over a period. Helpful for chasing overdue invoices and for client reconciliation at month-end. Not a substitute for an invoice.
Payment terms
The agreed window in which a client must pay an invoice — most commonly 'Net 7', 'Net 14', 'Net 30', or 'on receipt'. State the terms on the invoice itself. Shorter terms generally improve cash flow; longer terms may be expected by larger corporate clients.
Recurring invoice
An invoice that is issued automatically on a schedule — weekly, monthly, quarterly — for ongoing work such as retainers, subscriptions, or maintenance contracts. The same scope and amount are billed each cycle without you having to rebuild the invoice each time.
Hosted invoice payment link
A URL that takes the client to a hosted page where they can view the invoice and pay it directly — typically via card or EFT. In I Need Invoice, hosted invoice pages are Paystack-backed for the South African market.
POPIA
The Protection of Personal Information Act — South Africa's data-protection law, broadly analogous to GDPR. Relevant to invoicing because client names, addresses, ID numbers (where applicable), and payment details are personal information; storing them requires lawful basis, security, and respect for the data subject's rights.
Invoice numbering / sequence
SARS expects tax invoices to carry a sequential, unique number — you cannot reuse numbers or skip around at random. Most invoicing tools manage the sequence for you. The format is up to you (e.g. INV-2026-0001), but the sequence itself should be auditable.
ZAR
ZAR is the ISO 4217 currency code for the South African Rand, the currency of South Africa. Quoting and invoicing local clients in ZAR avoids exchange-rate disputes and matches what SARS expects on a domestic tax invoice.