South African restaurants, takeaways and cafes doing their own VAT, and the bookkeepers who check it.
Como funciona
- Enter your standard rate once.
- Add each line: what it is, whether it is a sale or a purchase, and the VAT-inclusive amount.
- Mark the zero-rated lines — basic foodstuffs on the buying side, exports on the selling side.
- Read the output and input VAT, and what the two common shortcuts would have cost you.
O que você ganha
- Extracts the VAT that's already inside a menu price using the correct tax fraction, not the VAT rate itself, so you don't over-report VAT you never actually collected.
Captura de tela

Detalhes técnicos
Como configurar e usar
- Compre a licenca — sua chave (lic_...) aparece na pagina do pedido e no seu e-mail.
- Entre em app.synoriaai.com com sua chave de licenca.
- Sem instalacao — o produto roda no navegador, na sua instancia isolada.
- 1. Open the page and enter the VAT rate (e.g., 15) in the rate field.
- 2. Add a sale line: give it a reference (e.g., S1), a description, choose 'sale', enter the total price including VAT (e.g., 115.00), and select 'no' for zero-rated.
- 3. Add a purchase line: give it a reference (e.g., P1), a description, choose 'purchase', and enter the amount (e.g., 100.00).
- 4. The page shows the VAT fraction (e.g., 15/115) and calculates the VAT inside each line, plus any over-claim if zero-rated items are included.
- 5. Review the output and input VAT separately—the difference is your net position.
Perguntas frequentes
How does the page handle VAT on a price that already includes tax?
It uses the tax fraction (rate divided by 100 plus rate), so on 115.00 at 15%, the VAT is 15.00—not 17.25. The fraction is printed so you can verify the math.
What happens if I buy zero-rated goods?
Zero-rated purchases have no input VAT to claim. The page shows how much you would have over-claimed if you treated the whole basket as taxable, so you can avoid that mistake.
Is my data safe?
All calculations happen in your browser; no data is sent to a server. The rate is entered by you, and only the arithmetic is built in—nothing is stored externally.
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