For South African businesses that pay suppliers
Every supplier invoice checked before you pay it.
Drop in the month's invoices. Each one is read twice, the maths, VAT, duplicates and bank details are checked, and you get back one clean spreadsheet. The few that need your eye come with the reason in plain words.
PDFs, scans and phone photos. No software to install. Export to Excel or Xero.
VAT 4728194056
| 3-Phase 63A circuit breakers · 8 × 450.00 | 3 600.00✓ |
| 16 mm SWA cable (m) · 55 × 80.00 | 4 400.00✓ |
| Subtotal | 8 000.00✓ |
| VAT (14%) | 1 120.00should be 15%: R 1 200.00 |
| Total due | R 9 120.00 |
How it works
Three steps, about five minutes a month.
Drop the batch in
Drag in the month's PDFs, or photograph paper invoices on your phone. Give the batch a name, like the supplier or the month.
We check every line
The numbers are read by AI and checked by plain arithmetic. Anything that doesn't add up, looks like a duplicate or pays into a new bank account is set aside with the reason.
Approve and download
Approve the clean ones in one click. Accept or reject each exception. Download one Excel file with a summary, supplier totals, every invoice and every line.
What we check
The things that cost money when nobody looks.
The AI only reads. Every check below is done by straightforward arithmetic and comparison, so the same invoice always gets the same answer.
VAT at the right rate
15% standard or zero-rated. Anything else is flagged.
VAT R 1 120.00 on R 8 000.00 = 14%Every line adds up
Quantity times price, lines to subtotal, subtotal plus VAT to total.
4 × 350.00 ≠ 1 450.00Duplicates
The same invoice number from the same supplier, or the same file sent twice, even months apart.
KH-2201 already processed on 2 SepChanged bank details
The most common invoice fraud. A new account for a known supplier stops the invoice until you confirm by phone.
Account differs from all previous invoicesMissing details
No invoice number, no date or no total means it can't be paid safely.
Could not read invoice numberDates that make no sense
Invoices dated in the future, or more than a year old.
Invoice date 2027-03-01 is in the futureTwo ways to work
Quick when it's clean, thorough when it isn't.
One screen, one download
- A summary of the batch: how many invoices, what's ready, the total and the VAT.
- Exceptions listed with the reason, and Accept or Reject beside each.
- Approve all clean invoices in one click, then download Excel or CSV.
Every invoice, side by side
- The original document next to the figures that were read from it.
- Correct any figure and every check runs again instantly.
- A supplier list showing every bank account each supplier has used.
Built for South Africa, careful with your data
Your invoices stay yours.
We process supplier invoices on your behalf and nothing else. Nothing is ever approved or paid without a person deciding.
- Currency & tax
- Rand amounts, 15% VAT and zero-rated supplies. Other currencies are read and marked.
- Storage
- Original files are deleted automatically after 90 days. The figures you approved stay in your account until you delete them.
- Separation
- Each business only ever sees its own invoices. Duplicate checks never compare against anyone else's data.
- Processors
- Hosted on Cloudflare. Invoices are read by Anthropic's Claude AI, which by default does not use API data to train its models.
- Exports
- Excel workbook, CSV, and a Xero bills import file.
Pilot
Free while we pilot with a small group of businesses.
In return, tell us what worked and what didn't. Pricing will be announced before the pilot ends, and pilot businesses will get it first.
Or email karstegg@gmail.com
- Up to 50 invoices a day
- Basic and Advanced modes
- Excel, CSV and Xero exports
- Supplier bank-account history
- Sign in with a one-time code by email
Questions
Good to know
What files can I upload?
PDF invoices, scans, and photos (JPEG, PNG, WebP) up to 8 MB each. Upload many at once. Photos taken on a phone are shrunk before upload so they go through quickly.
Can I trust an AI with our invoices?
The AI only transcribes. Every check is plain arithmetic and comparison done by our own code. Each invoice is read twice independently, and if the two reads disagree you're asked instead of us guessing. Nothing is approved without a person.
Does this replace my bookkeeper or accountant?
No. It removes the checking and capturing work so they, or you, spend time only on the invoices that need a decision.
Which accounting systems does it work with?
Any system that imports Excel or CSV. There's also a ready-made Xero bills import file. Sage and direct connections are on the list, based on what pilot businesses need.
What about handwritten invoices or delivery notes?
Typed and printed invoices work best today. Handwritten documents are on the roadmap. If a figure can't be read with confidence, it's flagged instead of guessed.
How long does it take?
Usually a few seconds per invoice, running in the background while you do something else. A batch of 50 is typically done in a few minutes.