70% High-Seas VAT Evidence
Trip-based methodology for ferries, cruise ships, tankers, and cargo operators. Import manifests, compute qualification ratios, and generate audit-grade evidence packs with tamper-evident blockchain anchoring.
VAT Exposure Depends on Evidence Quality
It's Not About Headline Ratios
Annual or seasonal VAT exposure isn't determined by simple time-at-sea percentages. Tax authorities require documented evidence of each voyage's qualification status, with verifiable territorial boundary crossings.
Methodology Matters
Raw AIS data points aren't sufficient. Authorities expect trip-based analysis: each declared voyage must be individually assessed for territorial water exit, then aggregated into a defensible ratio.
Audit Readiness is Critical
When audits occur—sometimes years after the fact—you need evidence that proves document integrity, creation timestamps, and unchanged calculations. Manual spreadsheets don't provide this assurance.
How We Compute Qualification
A "trip" or "VOY" is an operator-declared voyage unit. Phoenix ingests your declared trips, validates territorial crossings, and computes qualification per trip before calculating the aggregate ratio.
Define Trip/VOY Units
Each voyage is an operator-declared unit—imported from your manifest or API. Phoenix validates trip data completeness.
Compute Per-Trip Qualification
For each trip, we determine whether territorial waters were exited, using precise boundary calculations and optional ECDIS evidence.
Calculate Period Ratio
Aggregate qualified trips ÷ total trips = your 70% qualification ratio. Continuous monitoring against threshold.
Generate Evidence Pack
Audit-grade PDF with methodology explanation, trip-by-trip breakdown, and cryptographic integrity proof.
Multiple Ways to Import Your Voyages
From simple drag-and-drop uploads to enterprise API integration—choose the workflow that fits your operations.
CSV/Excel Manifest Upload
Drag-and-drop your existing voyage manifests. We support standard shipping formats.
- Drag-and-drop interface
- Bulk upload support
- Format validation
Template Download + Validation
Download our template, fill in your trip data, and upload with automatic validation.
- Pre-built templates
- Field validation
- Error highlighting
API VOY Insertion
Enterprise integration: programmatically insert voyages via REST API for automation.
- REST API endpoint
- Bulk operations
- Webhook callbacks
ECDIS Evidence Attachment
Attach ECDIS exports or other navigational evidence to each trip for enhanced audit support.
- Per-trip attachments
- Multiple file types
- Hash verification
Audit-Grade Documentation
Every output is designed for tax authority scrutiny—complete, verifiable, and tamper-evident.
Audit-Ready PDF Evidence Pack
Comprehensive PDF reports with trip summaries, territorial analysis, and qualification calculations—ready for tax authority submission.
Trip Table Export (CSV/XLSX)
Export detailed trip-by-trip data with dates, routes, territorial allocation, and qualification status for your own analysis.
Hash Anchoring / Tamper-Evident Audit Trail
Every evidence pack is cryptographically hashed and anchored to blockchain, providing irrefutable proof of document existence and integrity.
Enterprise API Access
For automated fleet operations, integrate directly with the Phoenix Gateway API.
POST/api/v1/voysBulk voyage insertion with validationPOST/api/v1/manifests/importImport manifest file, attach evidence, return trip IDsAPI Capabilities
- Ingest trips programmatically
- Validate required fields (IMO, dates, ports)
- Attach ECDIS/photos per trip
- Return trip IDs for report generation
- Webhook callbacks on processing complete
Works With Your Stack
Custom adapters, data mapping, and integration with your existing infrastructure.
Ready to Automate Your VAT Evidence?
From manifest import to audit-ready PDF in minutes. Contact us to see how Phoenix handles commercial shipping VAT compliance.