Abacus API Integration

EU VAT Compliance Made Simple

Comprehensive API documentation for your Tax Engine's integration with Abacus EU tax reporting services. Submit transactions, create filings, and manage compliance across all EU jurisdictions.

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Overview

This documentation provides your Tax Engine with complete API endpoints and workflows for integrating with Abacus EU VAT compliance services. your Tax Engine will submit transactions to Abacus for automated processing, filing, and compliance management across all EU member states.

Integration Scope

Your Tax Engine handles hundreds of thousands of transactions monthly across multiple EU jurisdictions, requiring robust bulk processing capabilities and real-time status monitoring.

Key Features

⚡ Real-Time Updates

Receive instant webhooks for filing status changes, approvals, and document generation.

🛡️ Enterprise Security

OAuth2.0 client credentials flow with HMAC-SHA256 signed webhooks and comprehensive error handling.

Integration Workflow

The integration follows a streamlined workflow designed for your Tax Engine's compliance needs:

What You'll Find Here

🚀 Getting Started

• OAuth2.0 authentication setup
• Sandbox environment configuration
• Integration workflow overview

📚 API Reference

• Complete endpoint documentation
• Request/response examples
• Entity, registration, and filing APIs

🔧 Core Workflows

• Entity setup and registration
• Transaction submission patterns
• Filing creation and approval
• Bulk operations and monitoring

💡 Examples

• Complete filing workflow
• EU VAT transaction examples

Quick Start

Ready to integrate? Here's your step-by-step path:

Prerequisites

• OAuth2.0 client credentials (provided by Abacus)
• Sandbox API access
• EU jurisdiction and period metadata

1. Set up Authentication - Configure OAuth2.0 credentials
2. Create Account & Entity - Set up your organizational structure
3. Submit Test Transaction - Process your first EU VAT transaction

EU Jurisdictions Supported

Abacus supports comprehensive VAT compliance across all EU member states:

Country	ISO Code	VAT Registration	Reporting Types
Germany	DE	✅	Monthly, Quarterly
France	FR	✅	Monthly, Quarterly
Netherlands	NL	✅	Monthly, Quarterly
Italy	IT	✅	Monthly, Quarterly
Spain	ES	✅	Monthly, Quarterly
+ 22 more EU countries		✅	Various periods

Ready to start your EU VAT integration?

Begin Integration →