Receipt capturing.
Receipt capturing is turning a receipt into data you can actually use: photograph or forward it, read the image, pull out the merchant, date, total and VAT, categorise the expense, and keep the original against that record. Done properly, a slip is handled once and never again.
This guide covers the whole pipeline, which fields come out of it, how accuracy really behaves, where capture systems fail, and the South African rules that decide whether what you captured is any use at tax time.
The seven steps of receipt capture
Most descriptions stop at “take a photo and the software reads it”. The detail matters, because each step is a place the result can quietly go wrong.
- 1
Capture
A photograph, a PDF, a forwarded email, or a direct feed from a supplier. This is the only step a human does, and it is where almost every system fails in practice: if capture is not effortless at the moment of purchase, nothing downstream ever runs.
- 2
Read the image (OCR)
Optical character recognition turns the pixels into text. Thermal till slips are hostile input: low contrast, curled paper, creases, faded ink, and the total often printed in the same weight as everything else. Good systems pre-process the image before reading it.
- 3
Extract the fields
Raw text is not data. Extraction decides which number on the slip is the total, which is the VAT, which of three dates is the transaction date, and what the merchant is actually called. This is the step where accuracy is won or lost, and where a model beats a regular expression.
- 4
Score the confidence
A capture system that cannot tell you which fields it is unsure about forces you to check all of them, which defeats the purpose. Per-field confidence turns review from reading every slip into glancing at the handful that are genuinely uncertain.
- 5
Categorise
The expense is assigned a category so it lands in the right place in your books. Categories should match how your tax authority expects expenses to be grouped, and the system should learn from a correction rather than making you repeat it every month.
- 6
Store the original
The extracted data is not the record. The image is. It has to be retrievable years later, which means it must survive a lost phone, and it must stay unaltered to be acceptable at audit.
- 7
Export or post
Finally the data has to leave. Either as a file (CSV, PDF, a ZIP of images) or posted straight into accounting software, ideally with the source image attached to the transaction so an auditor can see both together.
What gets captured
A capture system is only as useful as the fields it returns. This is the minimum set worth having.
The trading name, normalised. "PNP CRN MAIN & 3RD" and "Pick n Pay" should resolve to the same vendor.
The transaction date, not the print date or the card-settlement date. Slips frequently carry more than one.
The amount actually paid, after discounts and rounding.
Separated as its own figure. A total alone is not enough to file a return.
Necessary the moment anyone travels or buys from abroad.
The individual lines, for a grocery run or a restaurant tab with sub-charges.
The expense classification, applied automatically.
Card, cash or transfer, which matters when reconciling to a bank feed.
Receipt capturing in South Africa
Most guides on this subject are written for the United States or Europe, and the parts that matter most do not transfer. If you are capturing receipts for a South African business, three rules decide whether the exercise was worth anything.
VAT is 15%, and it must be separated
Input VAT is reclaimed per transaction, so the VAT amount has to be captured as its own field. Inferring it by taking 15% of the total is wrong on any slip containing zero-rated or exempt items, and in South Africa that includes most basic foodstuffs. On a typical grocery slip the assumption produces a figure you cannot file. More detail in our guide to claiming VAT on receipts.
Records are kept for five years
SARS requires the records supporting a return to be kept for five years from the date you submit it. That is a requirement about the document, not just the numbers, so a capture system that discards the image has not met it. See how long you must keep receipts.
A photograph is acceptable, and usually better
SARS accepts a clear, complete and unaltered photograph, provided it is legible at audit. This is the rule people most often disbelieve, and it is the one that makes capture worth doing at all: thermal slips fade within months, so the image you captured on the day is frequently more readable than the paper in the drawer. What the slip itself must contain to be valid is covered in what makes a valid tax invoice.
Where receipt capture goes wrong
Four failure modes account for nearly all of it, and only three are technical.
The photo is unusable
A thumb over the total, a slip folded across the VAT line, or a shot so dark the OCR guesses. No extraction system recovers information that was never in the image.
The wrong number is read as the total
Slips print subtotals, change tendered, loyalty balances and the total in similar positions. Weak extraction picks whichever looks most like a total.
VAT is assumed rather than separated
Some systems infer VAT by multiplying the total by the local rate. That is wrong on any slip carrying zero-rated or exempt items, which in South Africa means most grocery slips.
The capture habit dies
The most common failure by far, and the least technical. The tool works; nobody opens it. Any comparison of capture systems that ignores friction is measuring the wrong thing.
Deciding which approach suits you is a separate question, and we compared the realistic options, including where ours is the wrong choice, in choosing a receipt scanner in South Africa.
Common questions
What is receipt capturing?
Receipt capturing is the process of turning a receipt into structured, usable data: photographing or forwarding it, reading the image, extracting the merchant, date, total and VAT, categorising the expense, and storing the original document against that record. The goal is that a slip is entered once, at the moment you get it, and never handled again.
Is receipt capturing the same as receipt scanning?
They are used interchangeably, but scanning strictly describes only the image step. Capturing covers the whole pipeline, including extraction, categorisation, storage and export. A tool that scans a receipt into a PDF has scanned it; it has not captured it, because no usable data came out.
How accurate is automated receipt capture?
Well-built systems read a clear photograph of a standard slip reliably, and the honest answer is that accuracy depends far more on image quality than on the software. What matters more than a headline accuracy figure is whether the system tells you which fields it was unsure about, because that is what determines how much checking you have to do.
Does SARS accept captured receipts instead of the paper slip?
Yes. SARS accepts a clear, complete and unaltered photograph of a receipt, provided it is still legible at audit. In practice a captured image usually outlasts the original, because thermal till slips fade within months. Records must be kept for five years from the date the return is submitted.
Why does VAT have to be captured separately from the total?
Because you cannot file a VAT201 from a total. The input VAT you reclaim has to be a known figure per transaction. Inferring it by applying 15% to the total is wrong on any slip containing zero-rated or exempt items, which in South Africa includes most basic foodstuffs, so a large share of grocery slips.
What is the easiest way to capture receipts in South Africa?
The method you will still be using in six months, which in practice means the one with the least friction at the till. Snap-a-Slip does it over WhatsApp precisely for that reason: there is no app to install and no login, so capture is one photo sent to a saved contact. The first 15 receipts a month are free.
Capture one and see
Send a photo of a slip to +27 67 220 0126 and watch the pipeline above run on it. Your first 15 a month are free, and there is nothing to install.