Under the new VAT and electronic invoicing regulations introduced by ZATCA, companies in the Kingdom of Saudi Arabia must ensure that all their suppliers and vendors are correctly registered for tax and provide the correct tax identification details. Verification of supplier tax numbers is one of the key compliance steps for Saudi businesses to be undertaken before processing any invoices or making payments.
Supplier tax number verification ensures that companies are dealing with legitimate, VAT-registered entities. They also ensure that supplier and vendor invoices meet the mandatory requirements of ZATCA. Any failure by companies to verify supplier tax numbers can result in rejected VAT claims, financial penalties, and compliance violations.
In this blog, we present a comprehensive checklist of action items for Saudi companies to verify supplier tax information effectively while maintaining compliance with ZATCA regulations.
Understanding Tax Numbers in Saudi Arabia
Businesses registered for Value Added Tax (VAT) in Saudi Arabia are issued a 15-digit tax number by ZATCA for tax identification. According to the mandate, this 15-digit number uniquely identifies each business in Saudi Arabia, and businesses must include it on all invoices they issue.
The Saudi VAT number structure comprises different elements, each of which helps identify the taxpayer and the nature of the tax registration.
The breakup of the meaning of the digits is given below:
- The first digit represents the GCC country code
- The next eight digits identify the taxpayer
- One check digit, which is used for validation
- Branch identifiers to detect the branch of the company
- The last two digits identify the tax type, such as VAT
Businesses are required to verify supplier tax numbers before processing any invoices because VAT numbers are mandatory for reporting and tax invoices.
Supplier VAT verification checklist (KSA)
Below is an extensive checklist to verify supplier tax numbers in Saudi Arabia:
1. Gather the tax details of the supplier
Before the verification process begins, the company must collect the supplier's tax details. Essential tax information includes:
- Supplier’s VAT Registration Number
- Supplier’s Commercial Registration (CR) Number
- Legal business name
- Registered business address
- VAT Certificate copy
When you gather this information beforehand, you can ensure that the verification process is efficient and accurate.
Companies will also have to confirm that the supplier has indicated their tax information on the following documents:
- Tax invoices
- Contracts
- Vendor onboarding forms
Maintain a consistent record of supplier tax information to ensure that it matches with government databases.
2. Verification of the VAT number format
This is the most fundamental step in the entire checklist of verifying supplier tax information. You must verify if the Tax Number follows the correct Saudi VAT format. A valid Saudi VAT number:
- Contains 15 digits only
- Begins with the GCC country code
- Includes a validation check digit
If the number given to you has fewer or more than 15 digits, or contains letters, then it is likely invalid. This fundamental check can help identify invalid or incorrect tax numbers before proceeding to the actual verification checklist.
3. Use the ZATCA VAT verification portal
ZATCA’s official verification tool is one of the most reliable ways to verify a given tax number. Companies in Saudi Arabia can access the VAT Taxable Lookup Tool on the official ZATCA portal to confirm whether a supplier is registered for VAT.
Steps to verify a supplier tax number include:
- Visit the ZATCA website and log in with your credentials
- Navigate to E-Services and then Verification Services
- Select VAT Taxable Person Lookup
- Enter the supplier’s VAT number, CR number, or VAT Certificate number
- Complete the Captcha puzzle and click Submit or Send
The system now displays the verification results for the provided tax information.
4. Confirm the supplier's legal entity name
The ZATCA system displays the results once the company enters the supplier's tax information in the ZATCA VAT Taxable Person Lookup tool. The results displayed typically include:
- Registered legal name
- VAT registration number
- Registration date
- Registration status
Companies must carefully compare the official legal name displayed in the portal with the name mentioned on supplier invoices and contracts. They need to match.
A mismatch indicates:
- Fraudulent invoices
- Incorrect supplier details
- Outdated company information
In case of any discrepancy, the company must contact the supplier or vendor to clarify the details provided on the invoice or contract.
5. Check the VAT Registration status
Another important step in the supplier due diligence VAT KSA checklist is to verify the supplier's VAT Registration status.
The ZATCA verification tool will display in its results whether the supplier is:
- Active
- Cancelled
- Inactive
Tax invoices can only be issued by suppliers with an active status. If the VAT verification status is inactive or cancelled, the supplier invoice will not qualify for VAT credit. Companies will have to suspend processing such invoices until the supplier rectifies the situation.
6. Cross-verify the Commercial Registration Number
The supplier's Commercial Registration (CR) number must also match the data returned by the ZATCA verification portal. The CR number confirms that the supplier is legally registered with the Ministry of Commerce in Saudi Arabia. Companies have to verify:
- Company legal name
- CR number accuracy
- Business activity
Cross-checking both the VAT number and the CR number ensures that the supplier is a registered business entity and legitimate.
7. Validate Tax Invoice requirements
Saudi VAT regulations mandate that tax invoices include specific fields. Before approving supplier invoices, companies must check that the following details are present in the invoice:
- VAT Registration number
- Suppliers legal name
- Invoice date
- Invoice number
- Description of goods or services
- VAT amount and rate of VAT
Invoices that are missing the supplier’s VAT number or contain incorrect numbers can be rejected during tax filing.
8. Document the verification results
This is a very important step that will safeguard your company during audits. Companies should maintain records of:
- Screenshots of ZATCA verification results
- Verification date and time
- Supplier documentation
- Communication records with the supplier
When you maintain these documents, you ensure your company remains safe during audits and can prove you took the necessary steps to verify the tax information for any given supplier.
9. Integrate verification into vendor onboarding processes
Tax number verification should not only be done while processing invoices. It must be done during vendor onboarding to prevent complications and disputes that may arise later.
Some onboarding supplier VAT check KSA include:
- Verifying VAT numbers before adding a new vendor
- Re-checking supplier tax numbers periodically
- Updating supplier records if tax details change
When you perform tax number verification at the onboarding stage, you ensure that only compliant and legally registered businesses end up doing business with you.
10. Automate Tax Number Verification
For companies in Saudi Arabia with large supplier and vendor networks, manually verifying each supplier and vendor can be time-consuming.
Businesses in Saudi Arabia can now automate supplier tax number verification by integrating their ERP or accounting systems with tax verification tools. Some systems can connect directly to ZATCA services via their API and automatically verify VAT numbers while processing invoices.
Automation offers a number of key benefits:
- Real-time supplier validation
- Reduced human error
- Faster invoice approvals
- Improved compliance monitoring
Automated tax number verification is crucial for large businesses processing thousands of invoices each month.
Best practices for ongoing compliance
Adding more to the verification checklist, Saudi companies need to adopt several best practices to maintain tax compliance with ZATCA.
Conduct periodic supplier audits
Businesses should review supplier records periodically and re-verify tax numbers at different stages of engagement to ensure that they remain valid.
Train accounting teams
Finance and procurement teams should be trained to identify incorrect or suspicious tax numbers. They should be familiar with the structure of Tax numbers and be able to verify a Tax number on the ZATCA portal or through an ERP like TallyPrime.
Monitor regulatory updates
ZATCA can update tax and e-invoicing regulations from time to time. Companies should remain informed and up to date on any new requirements from ZATCA.
Maintain digital records
Storing supplier verification records can make audits easier and bulletproof, while improving compliance documentation.
Supplier tax number verification is a fundamental compliance practice for businesses operating in the Kingdom of Saudi Arabia. With strict VAT regulations and the extension of electronic invoicing requirements, companies in Saudi Arabia must ensure that every supplier in their network is legally registered for VAT and has a valid tax number. By implementing a structured verification checklist—including verifying VAT number formats, using the ZATCA verification portal or an ERP, confirming supplier details, and documenting verification results—Saudi companies can significantly reduce compliance risks.
