Effective Date: January 1, 2026 | Last Updated: September 15, 2026
1. Settlement Currency & Legal Entity
All professional service fees, retainers, and architectural audit packages are billed by ZA AGENCY (SARLU, SIREN 977 910 009, Bourg-la-Reine, France) denominated primarily in Euros (€). International payments in USD or GBP may be accepted subject to mutual agreement and current conversion rates.
2. Accepted Settlement Methods
1. SEPA B2B Bank Transfer (Recommended)
Direct bank-to-bank electronic transfer via SEPA (Single Euro Payments Area) using our French IBAN/BIC details provided on official invoices. Standard settlement window is 1 to 2 banking business days.
2. International SWIFT Wire Transfer
For clients outside the European Union (UK, Switzerland, US), SWIFT bank transfers are accepted directly into our corporate treasury account.
3. Corporate Payment Cards
Major corporate credit and debit cards (Visa, Mastercard, American Express) processed securely via encrypted PCI-DSS Level 1 compliant payment gateways.
3. Invoicing Structure & VAT Regulations
| Client Geography | VAT / Tax Treatment | Required Documentation |
|---|---|---|
| France (Domestic) | Standard French VAT (20% TVA) applicable | Official French Commercial Invoice |
| European Union (Non-France) | Reverse-charge mechanism (0% VAT under Art. 196 EU VAT Directive) | Valid Intra-Community VAT Number (VIES) |
| Extra-EU / International | VAT Exempt (Export of digital consulting services) | Corporate Registration ID & Country Address |
4. Payment Terms & Late Payment Provisions
Standard invoices are due within thirty (30) calendar days from the date of issuance unless stipulated otherwise in the signed Statement of Work.
Pursuant to Articles L441-10 and L441-16 of the French Commercial Code, late payments will automatically incur late interest penalties at the European Central Bank refinancing rate plus 10 percentage points, alongside a statutory fixed recovery fee of 40.00 EUR.
For invoice copies, accounting reconciliations, or bank coordinate verifications:
ZA AGENCY — Accounts & Billing Office
7 Rue du 8 Mai 1945, 92340 Bourg-la-Reine, France
Email: [email protected]