As a supplier on Cellbase, you're responsible for your own tax obligations. Documentation requirements are straightforward.
Required documentation
All suppliers must provide:
- Business registration documents
- Tax identification or registration number
- VAT registration details (if VAT-registered)
- Authorized signatory information
Your tax responsibilities
Product sales: you're responsible for:
- Determining applicable VAT/tax on each sale based on buyer location
- Issuing your own VAT invoices to buyers
- Reporting and remitting any VAT/tax due in your jurisdiction
- Maintaining accurate tax records
Cellbase operates as a marketplace facilitator. We don't collect VAT on product sales - you handle all product tax obligations as the seller of record.
Issuing invoices
After each sale, upload your official tax invoice to the order. This provides buyers with the tax documentation they need and completes the transaction.
Your invoice should include:
- Your VAT/tax registration details (if applicable)
- Buyer information
- Product details and pricing
- Any VAT/tax charged
- Invoice date and number
Cross-border sales
Most transactions on Cellbase involve international shipping. Familiarise yourself with:
- Your obligations for cross-border B2B sales
- When to apply or not apply VAT
- Reverse charge mechanisms (if applicable)
- Export documentation requirements
Consult your tax adviser for guidance on international B2B sales from your jurisdiction.
Commission VAT
Cellbase charges a commission on each sale (typically 15%). If you're UK-based and VAT-registered, we add 20% UK VAT to our commission fee. This is separate from product VAT and appears in your payout statement as:
- Commission deducted
- VAT on commission (UK VAT-registered suppliers only)
- Net payout amount
Tax reporting
Cellbase provides transaction data to support your tax reporting:
- Order summaries by period
- Sales by buyer location
- Commission deductions
- Detailed transaction history
Use this data for your VAT returns and tax filings in your jurisdiction.
Keeping documentation current
Update your tax information when:
- VAT registration status changes
- Business structure changes
- Tax registration details change
- Certifications are renewed
Contact your Cellbase account manager with updated documentation.
Tax advice
Cellbase provides transaction data but doesn't give tax advice. For questions about:
- VAT treatment of specific transactions
- Cross-border tax obligations
- Filing requirements
- Tax compliance
Consult a qualified tax adviser in your jurisdiction.
Compliance
Maintain accurate records of:
- All invoices issued to buyers
- VAT/tax collected and remitted
- Commission payments and VAT
- Cross-border transaction documentation
Good record-keeping ensures smooth tax reporting and audit readiness.
