Simplified vs standard tax invoice: which one are you issuing?
Getting this wrong is the most common Phase 2 mistake. The two invoice types follow different flows, carry different fields and have different deadlines — and your POS must choose correctly at the counter.
4 min read
A customer at your counter asks for "a tax invoice with our company details". Your cashier taps something, a receipt prints, and three months later the customer's accountant says they cannot reclaim the VAT. This article exists to stop that conversation.
The rule in one line
Selling to a consumer → simplified tax invoice. Selling to a VAT-registered business → standard tax invoice.
The decision is aboutwho the buyer is, not about how much they spent or whether they asked nicely.
Simplified tax invoice (B2C)
Used for retail sales to end consumers.
- Flow: issued immediately at the counter;reported to ZATCA within 24 hours
- QR code: mandatory and must be scannable on the printed copy
- Buyer details: not required
- Offline: possible, provided your device signs locally
- Who issues these: shops, restaurants, cafés, pharmacies, salons — nearly every counter sale
Standard tax invoice (B2B)
Used when the buyer is a registered business that will reclaim the VAT.
- Flow: generated, submitted to ZATCA forclearance, and only delivered to the buyer after it is cleared
- QR code: required from the cleared invoice
- Buyer details: buyer name, address andbuyer VAT registration number are required
- Offline: not possible in the same way — clearance requires the authority
- Who issues these: wholesalers, B2B suppliers, and any retailer whose customer is buying for a business
The counter problem
The problem is that the same shop issues both. A café sells 400 simplified invoices a day and then a company buys 60 boxes of coffee for their office and needs a standard one.
Your point of sale must therefore:
- Let the cashier mark a sale as B2Bbefore it is finalised
- Capture and validate the buyer's VAT number
- Route that invoice through clearance rather than reporting
- Hold delivery of the invoice until clearance returns
- Fail safely if clearance does not return — and tell the cashier
Step 5 is where systems differ most. Ask any vendor: "What does the cashier see if clearance takes thirty seconds? What if it fails?"
Converting after the fact
If a customer asks for a standard invoice after you have already issued a simplified one, you cannot simply re-print it with their details added. The correct path is a credit note against the original simplified invoice and a new standard invoice — both reported or cleared appropriately.
This is tedious, which is why it is worth training staff to ask "is this for a company?" before finalising a sale above a threshold you set. That one question prevents nearly all of these.
Field comparison
| Field | Simplified | Standard |
|---|---|---|
| Seller name and VAT number | Required | Required |
| Buyer name | Optional | Required |
| Buyer VAT number | Not required | Required |
| Buyer address | Not required | Required |
| Invoice UUID | Required | Required |
| Previous invoice hash | Required | Required |
| Cryptographic stamp | Required | Applied through clearance |
| QR code | Required on print | Required |
| Line-level VAT | Required | Required |
Deadlines
- Simplified:report within 24 hours of issuance
- Standard:clear before delivering to the buyer
A system that batches simplified invoices once a day is inside the window but has no margin. Wameed reports continuously and retries failures, so a single network blip does not push a batch past the deadline.
What to check in your own system right now
- Issue a test simplified invoice — does the QR scan and decode correctly?
- Issue a test standard invoice — is the buyer VAT number captured and validated?
- Look at your last month: how many standard invoices did you issue, and were they all cleared?
- Does your reporting dashboard separate accepted, warned and rejected?
If you cannot answer question 3 from your own back office in under a minute, that is the gap to close first.
See theZATCA page for how Wameed handles both flows, and thefull Phase 2 guide for the underlying mechanics.
This is not tax advice. Confirm your obligations with ZATCA or your tax adviser.
- #ZATCA
- #فاتورة مبسطة
- #فاتورة ضريبية
- #B2B
- #B2C
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