For as long as most South African businesses have been dealing with VAT, it has worked on a lag. You trade during the month, you gather up the paperwork, and somewhere around the 25th, your bookkeeper reconstructs what happened and files a return. SARS finds out what you owe roughly a month after you owed it.
That lag is going away, at least on one side of the equation.
What SARS is actually proposing
SARS has published a VAT Modernisation Consultation Paper setting out its vision for what it calls a Digital VAT Model, and it is a significant shift from how VAT has worked in South Africa since 1991. The direction is to connect SARS across the VAT value chain to every point of sale, using an interoperability framework and e-reporting to enable trusted, near real-time transactional data flows. The stated goal is to move VAT compliance away from something you do at month-end and into something that happens automatically as part of running your business.
Some of the detail that has emerged so far:
Data moves through accredited providers, not straight to SARS. The proposed model has both supplier and buyer exchanging invoice data through certified service providers, who validate it before the required VAT information reaches SARS. This is sometimes called continuous transaction control, and it means SARS gets visibility close to the moment a transaction happens, not weeks later.
The endgame is pre-filled returns. SARS's long-term ambition is a system where enough transaction data is already sitting with SARS that VAT returns can be pre-filled, and eventually auto-assessed, while taxpayers still retain the right to review. SARS Commissioner Dr Johnstone Makhubu has described the goal as moving away from manual, retrospective processes toward VAT compliance becoming part of the software businesses already use every day.
This is legislated, not hypothetical. The Tax Administration Laws Amendment Act, published in the Government Gazette on 1 April 2026, already amended the VAT Act to create the legislative framework for e-invoicing and voluntary e-reporting. The consultation paper builds directly on that.
It is phased, and it starts with the biggest vendors. Pilot programmes and system design are running through 2026, with the largest VAT-liable businesses and priority sectors onboarding first, medium-sized enterprises following in later phases, and full operational capability targeted around 2028. Public comment on the current proposals closes 16 October 2026.
Any VAT-registered business is in scope eventually. That includes any entity currently registered for VAT, from sole proprietors who crossed the compulsory registration threshold through to companies, close corporations, and trusts. Businesses still invoicing manually, through Word documents or spreadsheets, face the biggest operational shift.
Why this changes the shape of the problem, not just the paperwork
Here is the part that matters if you run a small business rather than a tax practice. VAT has always had two sides. Output VAT is what you charge and collect on sales. Input VAT is what you claim back on business expenses. Under the current system, both sides move at the same slow pace, reconstructed after the fact from whatever paperwork survived the month.
Once near real-time reporting takes hold, that symmetry breaks. Output VAT starts flowing to SARS close to the moment a sale happens, because the reporting itself becomes part of the transaction. Input VAT does not get that same upgrade automatically. It still depends entirely on someone in your business capturing a slip, whether that is fuel, stock, or a client lunch, and getting it into your books before it goes missing or the paper fades.
That creates a lopsided position. SARS will increasingly know what you owe in close to real time. What you are owed back, in the form of input VAT you are entitled to claim, still depends on the same slip-in-a-glovebox process that has always been unreliable. Finance teams are already being told they need to move away from month-end VAT preparation toward continuous transaction monitoring, because invoice validation itself is becoming a live process rather than a periodic one. If your input side cannot keep pace with that, you are not just slower. You are structurally more likely to under-claim, miss VAT you are entitled to, and show up as a mismatch when SARS's systems reconcile faster than yours do.
Levelling the playing field on the input side
This is exactly the gap SlipZapper was built to close, and the timing is not a coincidence. The whole premise is that a cardholder captures their slip as the transaction happens, whether that is a photo, a forward from email, or a message to the WhatsApp bot. That single habit means your input VAT is being tracked in real time too, at the same pace SARS is moving toward on the output side.
It also means you are not scrambling to adapt as this reform reaches your business. If your input records are already timestamped and complete as transactions happen, you are already operating the way SARS's Digital VAT Model assumes businesses will operate. The businesses that will feel this transition hardest are the ones still relying on a shoebox of paper slips and a memory of what they were for. The businesses that will barely notice are the ones where slip capture already happens automatically, at the point of sale.
You do not need to wait for the mandate to reach your business size before your books work this way. Getting your input side onto real-time capture now means one less thing to overhaul later, and one less gap between what SARS can see and what you can prove.
Ready to make your input VAT keep pace? Start your 30 day free trial and get every slip captured the moment it happens.