A valid tax invoice in South Africa must contain the words "Tax Invoice", "VAT Invoice" or "Invoice"; the supplier's name, address and VAT number; the recipient's name, address and — where the recipient is a vendor — their VAT number; a serial number and date of issue; an accurate description of the goods or services; the quantity or volume supplied; and the value, the VAT charged and the total. Without every one of these, SARS can disallow the input VAT claim.
That is not a technicality. As SARS puts it, the tax invoice is the most important document in the VAT system — without a proper one, a business cannot deduct input tax on its business expenses. A missing VAT number on a R230,000 invoice is a R30,000 problem.
This page covers the document itself. For what you may claim once you hold a valid invoice, see what input VAT you can actually claim back.
TL;DR
Over R5,000: a full tax invoice with all the requirements below.
R5,000 or less: an abridged tax invoice is permitted — recipient details may be omitted.
R50 or less: no tax invoice required, but you still need a till slip or sales docket showing the VAT.
A tax invoice must be issued within 21 days of the supply.
These requirements have applied since 8 January 2016.
Keep every tax invoice for 5 years.
No valid invoice, no input VAT — regardless of how genuine the expense was.
The three tiers
South Africa applies a sliding scale based on the consideration for the supply, meaning the total VAT-inclusive price.
| Consideration for the supply | What is required |
|---|---|
| More than R5,000 | A full tax invoice with all seven categories of information |
| R5,000 or less | An abridged tax invoice is permitted — the recipient's name, address and VAT number may be omitted |
| R50 or less | No tax invoice required, but a till slip or sales docket showing the VAT charged is needed to verify the input tax deducted |
Two points that catch people out:
The R5,000 test is on the consideration — the VAT-inclusive total — not the excluding-VAT value. An invoice for R4,500 plus VAT is R5,175 including VAT and therefore needs a full tax invoice.
Abridged is permitted, not required. Nothing stops you from issuing a full tax invoice for every supply regardless of value, and for most businesses that is the simpler policy. One invoice template, no threshold to monitor, no risk of getting the tier wrong.
The full tax invoice checklist
For supplies over R5,000, every one of the following must appear. Print this and check your own template against it.
1. The words "Tax Invoice", "VAT Invoice" or "Invoice" Any one of the three is acceptable. "Statement", "Proforma", "Quotation" and "Receipt" are not.
2. The supplier's name, address and VAT registration number All three. A VAT number without an address fails. Note that the address must be present — a header with only a logo, email and phone number is a common defect in modern invoice templates.
3. The recipient's name, address and, where the recipient is a vendor, their VAT registration number This is the field most often missing. "Cash sale" or a first name only is not a name and address. If you are the buyer, this is your responsibility to insist on — the input VAT is yours to lose.
4. A serial number and the date of issue Sequential numbering matters. Invoices numbered by a system that restarts, duplicates or skips wholesale attract questions in a verification.
5. An accurate description of the goods or services "Services rendered", "consulting" and "sundry" are weak descriptions and are routinely challenged on large claims. Describe what was actually supplied. Where the goods are second-hand goods, the invoice must indicate that.
6. The quantity or volume of goods or services supplied Hours, units, kilograms, litres, months. A lump sum with no quantity is a defect.
7. The value of the supply, the amount of tax charged, and the consideration In practice: the excluding-VAT value, the VAT amount, and the inclusive total. The alternative permitted presentation is to show the inclusive total together with a statement that it includes VAT at the applicable rate — but showing all three lines is safer and easier for your customer to process.
The abridged tax invoice
For supplies of R5,000 or less, you may issue an abridged tax invoice. It requires everything on the list above except the recipient's name, address and VAT number.
So an abridged tax invoice still needs:
The words "Tax Invoice", "VAT Invoice" or "Invoice"
Supplier's name, address and VAT registration number
Serial number and date of issue
Accurate description of the goods or services
The value, the VAT charged and the consideration
This is why a supermarket or hardware store till slip can support an input VAT claim: it is an abridged tax invoice, provided it carries the store's VAT number and the words identifying it as a tax invoice.
Check your own tills and card machines. A surprising number of small-business point-of-sale systems produce slips that omit the VAT number or the words "Tax Invoice" entirely, which quietly makes every slip you issue unusable to a business customer.
The R50 exception
Where the consideration is R50 or less, no tax invoice is required at all. But you cannot claim input VAT on nothing — you still need a document such as a till slip or sales docket indicating the VAT charged by the supplier, in order to verify the deduction.
In practice this covers parking, small refreshments, minor consumables. Keep the slip.
You have 21 days to issue it
The VAT Act prescribes the timeframe within which a tax invoice must be issued: 21 days from the time the supply was made.
This is widely ignored and rarely the primary issue in a dispute, but it matters in two situations:
Year-end and period-end cut-off. A supply made in the last days of a tax period, invoiced late, can land the output tax in the wrong period.
Customers chasing input VAT. Your customer cannot claim until they hold the invoice. Invoicing 45 days after delivery pushes their claim into a later period and strains the relationship.
What a defective invoice actually costs
The consequence is simple and unforgiving: no valid tax invoice, no input tax deduction.
It does not matter that:
the expense was genuinely incurred for business purposes;
you have the bank statement showing you paid it;
you have a delivery note, a contract and an email trail;
the supplier is a legitimate registered vendor.
SARS assesses the document. If the document is defective, the claim goes.
The arithmetic on a single missing field
| Invoice value (incl. VAT) | Input VAT at risk |
|---|---|
| R5,750 | R750 |
| R23,000 | R3,000 |
| R115,000 | R15,000 |
| R575,000 | R75,000 |
A verification that disallows twelve months of claims from one non-compliant supplier can easily reach six figures — and it comes with penalties and interest at 10.25% per annum on the resulting assessment.
How to fix a defective invoice
Go back to the supplier and ask for a corrected one. This is the answer in almost every case, and it works far more often than people expect. Suppliers issue corrected invoices routinely.
Do this before you file the return that claims the VAT, not after SARS asks. A verification request gives you 21 business days to produce documents, and chasing a supplier who has since gone quiet inside that window is unpleasant.
Do not amend the invoice yourself. Writing a VAT number onto a supplier's invoice in pen does not make it valid, and altering a supplier's document creates a far worse problem than the one you started with.
If the supplier will not or cannot correct it, the claim is at risk. Where the amounts are significant, take advice — there are limited circumstances in which SARS may accept alternative documentary proof, but they are narrow and discretionary, and should not be relied on as a plan.
The eight defects we see most often
Working through client records, the same problems recur:
No recipient VAT number on invoices over R5,000. Overwhelmingly the most common.
No physical address for the supplier — modern templates with only an email and phone number.
"Invoice" replaced by "Statement" or "Proforma". A statement of account is not a tax invoice, and a proforma is explicitly not one.
Vague descriptions — "services", "sundries", "as agreed".
No quantity or volume. Common on service invoices billed as a lump sum.
Only the inclusive total shown, with no VAT amount and no statement that VAT is included.
Duplicate or non-sequential invoice numbers, usually caused by running two invoicing systems in parallel.
Supplier's VAT number not actually valid. Worth checking on the SARS VAT Vendor Search before you build a large claim on a new supplier.
Getting it right on invoices you issue
Everything above is written from the buyer's side, because that is where the money is lost. But there are consequences on the supply side too.
Only registered vendors may issue tax invoices. If you are not registered for VAT, you may not issue a document called a tax invoice, may not show a VAT line, and may not quote a VAT number. Doing so means charging tax you have no right to collect.
One tax invoice per supply. If a duplicate is issued, it must be clearly marked as a copy.
Credit and debit notes have their own requirements. Where a supply is cancelled, returned or the price changes, a credit note or debit note is required, with its own prescribed content — it is not enough to simply issue a negative invoice with no reference to the original.
Advertised prices must include VAT. A separate obligation, but part of the same discipline: a registered vendor must include VAT in all prices advertised or quoted.
An annotated example
Here is what a compliant full tax invoice looks like, with each requirement labelled. Check your own template against it line by line.
┌───────────────────────────────────────────────────────────┐
│ TAX INVOICE ← requirement 1 │
│ │
│ Bright Signage (Pty) Ltd ← requirement 2 │
│ 14 Kruis Street, Johannesburg, 2001 │
│ VAT Reg No: 4123456789 │
│ │
│ Invoice To: ← requirement 3 │
│ Foood Cafe Cresta (Pty) Ltd │
│ Shop 42, Cresta Centre, Randburg, 2194 │
│ VAT Reg No: 4987654321 │
│ │
│ Invoice No: INV-2026-0417 ← requirement 4 │
│ Date: 14 July 2026 │
│ │
│ Description Qty Amount │
│ ─────────────────────────────────────────────── │
│ Illuminated shopfront sign, 1 R 18,500.00 │
│ 1800 × 600mm, powder-coated │
│ aluminium — supply and install ↑ ↑ │
│ ↑ requirement 6 requirement 7 │
│ requirement 5 │
│ │
│ Subtotal (excluding VAT) R 18,500.00 │
│ VAT @ 15% R 2,775.00 │
│ Total due R 21,275.00 │
└───────────────────────────────────────────────────────────┘
Note what makes it work: the description says what was actually supplied and its dimensions, not "signage"; the quantity is stated; and all three money lines appear — value, VAT and consideration. Because the total exceeds R5,000, the recipient's full details including their VAT number are mandatory.
Credit notes and debit notes
Where a supply is cancelled, goods are returned, a discount is given after invoicing, or the price is altered, you cannot simply reverse the entry in your books. The VAT Act requires a credit note (where the amount decreases) or a debit note (where it increases), each with its own prescribed content.
A credit note must contain:
The words "Credit Note"
Supplier's name, address and VAT number
Recipient's name, address and VAT number where the recipient is a vendor
The date of issue
The amount by which the value and the tax have been reduced
A brief explanation of why it was issued
Sufficient information to identify the original tax invoice it relates to
Debit notes carry equivalent requirements for increases.
The two mistakes here are common and both fail. Issuing a negative invoice instead of a credit note is not compliant. Issuing a credit note that does not reference the original tax invoice is not compliant either — that cross-reference is the whole point of the document.
Electronic invoices
Electronic tax invoices are entirely acceptable. There is no requirement for paper, wet signatures or posted originals.
What matters is that the electronic invoice contains all the prescribed information, that it is retained in a form that is legible and retrievable for five years, and that where a duplicate is issued it is clearly marked as a copy.
Two practical points:
PDF beats a screenshot. A photograph of a screen is not a robust record, and the resolution is often insufficient for a verification.
Emailed invoices need a filing destination, not just an inbox. Invoices that live only in a mailbox are unfindable in a verification and are frequently lost entirely when someone leaves.
Record keeping: five years
A vendor must retain tax invoices for supplies made, bills of entry for goods imported or exported, and proper accounting records generally, for a period of five years.
These documents form the audit trail SARS uses to verify compliance. Electronic copies are acceptable, provided they are legible, complete and retrievable — which in practice means a searchable folder structure or an accounting system with document attachment, not a phone camera roll.
The practical standard worth aiming for: you can produce any invoice from the last five years within two minutes. If you can, verifications are an inconvenience. If you cannot, they are a crisis.
Frequently asked questions
What must a tax invoice contain in South Africa? For supplies over R5,000: the words "Tax Invoice", "VAT Invoice" or "Invoice"; the supplier's name, address and VAT number; the recipient's name, address and VAT number where the recipient is a vendor; a serial number and date of issue; an accurate description of the goods or services; the quantity or volume; and the value, the VAT charged and the consideration.
What is the difference between a full and an abridged tax invoice? An abridged tax invoice may be issued where the consideration is R5,000 or less, and it may omit the recipient's name, address and VAT registration number. Everything else is the same. Above R5,000, a full tax invoice is required.
Do I need a tax invoice for small purchases? Not where the consideration is R50 or less. But you still need a till slip or sales docket showing the VAT charged in order to claim the input tax.
Can I claim VAT without a tax invoice? Generally no. Without a valid tax invoice a business cannot deduct input tax, regardless of whether the expense was genuine. The best remedy is to obtain a corrected invoice from the supplier before filing the return.
How long do I have to issue a tax invoice? 21 days from the time the supply was made.
Is a till slip a valid tax invoice? It can be. A till slip qualifies as an abridged tax invoice for supplies of R5,000 or less if it carries the words "Tax Invoice", "VAT Invoice" or "Invoice", the supplier's name, address and VAT number, a serial number and date, a description of what was bought, and the value and VAT.
Can I issue a tax invoice if I am not registered for VAT? No. Only a registered vendor may issue a tax invoice, show a VAT line or quote a VAT number. If you are not registered, issue an ordinary invoice with no reference to VAT.
How long must I keep tax invoices? Five years. This applies to tax invoices for supplies made, import and export documentation, and accounting records generally.
Does a proforma invoice count? No. A proforma is a quotation, not a tax invoice, and cannot support an input VAT claim. Ask for the actual tax invoice once the supply is made.
The habit that saves the money
Almost every disallowed input VAT claim traces back to the same moment: an invoice was received, filed and paid without anyone checking it.
Check invoices at the point of receipt, not at the point of the SARS verification. Bounce the defective ones straight back to the supplier while the relationship is warm and the transaction is recent.
Smartbook builds that check into monthly bookkeeping — invoices are reviewed against the SARS requirements as they are processed, and defective ones are flagged for correction long before a return is filed on them.
See our monthly accounting plans →
Last reviewed: 26 July 2026. Written by the Smartbook team — SAIPA and SAICA accredited, SARS registered tax practitioners. The invoice requirements described have applied since 8 January 2016. General guidance, not advice on your specific circumstances.
Primary sources: SARS — Tax Invoices · SARS — Tax Invoice Checklist · SARS — Obligations of a VAT vendor · SARS — VAT404 Guide for Vendors · SARS VAT Vendor Search