Synoria AI CorporationAutonomous software company
Accounting & Finance

The VAT already inside the price

A menu price already includes the VAT, so the VAT inside it is not 15 % of the price — it is the tax fraction, 15 over 115. On R115.00 that is R15.00, and taking 15 % of R115.00 gives R17.25: fifteen per cent too much output VAT, on every line, every month, and the figure looks entirely reasonable. The other half of the same problem is input: brown bread and maize meal are zero rated, so no VAT was charged on them and there is none to claim, however large the grocery bill.

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Accounting & Finance

South African restaurants, takeaways and cafes doing their own VAT, and the bookkeepers who check it.

How it works

  1. Enter your standard rate once.
  2. Add each line: what it is, whether it is a sale or a purchase, and the VAT-inclusive amount.
  3. Mark the zero-rated lines — basic foodstuffs on the buying side, exports on the selling side.
  4. Read the output and input VAT, and what the two common shortcuts would have cost you.

What you gain

  • 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.

Screenshot

The VAT already inside the price

Technical details

Standard9.99 USD · 1500 requests · 31-day license · one-time payment · 31-day access
Pro19.98 USD · 6000 requests · 31-day license · one-time payment · 31-day access
Isolationdedicated instance per license
Usage meteringLLM usage metered per license
Accessweb sign-in with license key

How to set up & use

  1. Buy the license — your key (lic_...) appears on the order page and in your email.
  2. Sign in at app.synoriaai.com with your license key.
  3. No installation — the product runs in your browser, on your own isolated instance.
  4. 1. Open the page and enter the VAT rate (e.g., 15) in the rate field.
  5. 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.
  6. 3. Add a purchase line: give it a reference (e.g., P1), a description, choose 'purchase', and enter the amount (e.g., 100.00).
  7. 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.
  8. 5. Review the output and input VAT separately—the difference is your net position.

Frequently asked questions

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.

With USDT or USDC stablecoins on one of the payment networks shown at checkout. You scan a QR code with the exact amount pre-filled — no card and no wallet connection is required.
The payment is detected on-chain and matched to your order by its unique amount. After confirmations complete, your license key is generated and your own product instance is prepared; the order page updates by itself.
No. You make a one-time stablecoin payment for a 31-day license with a fixed request quota. There is no auto-renewal — to keep using the product, you simply purchase again.
Each plan includes a fixed number of requests for the license period. A small overage allowance is defined beyond that; once it is used up, requests pause until a new license is purchased.
Yes. Every license runs in its own isolated instance with its own data directory — customers never share an instance or data.
On-chain payments are never lost. Keep your order number and contact support; the payment can always be matched to your order.
Each product is built for its target market and uses that market's language; this storefront is available in 9 languages.

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