Stop Wasting Time on Manual Submissions to Siscomex

A real API connection. We are not a web form that copies and pastes. aduanasHQ has direct integration via REST/XML API with the Siscomex and Portal Único servers of Receita Federal.

How it works:

1. You enter data in aduanasHQ a single time
2. P4 validates against Siscomex rules before submitting (prevents rejections)
3. Click "Submit" → P4 transmits digitally signed XML to Siscomex
4. Siscomex responds in 8-15 seconds with acceptance or rejection
5. P4 shows the result immediately

Benefit: No copying/pasting, no logging in to Portal Único, no typing errors.

Yes, you can keep working. P4 automatically detects when Siscomex is unavailable.

What happens:

• P4 notifies you: "Siscomex temporarily unavailable"
• Your declarations are saved in a queue
• P4 automatically retries every 15 minutes
• When Siscomex comes back, P4 submits all queued declarations
• You receive a notification for each successful submission

In the meantime: You can prepare declarations, upload documents, generate reports, and work on other tasks.

Siscomex uptime: Historically 97.8%. Most outages are < 3 hours (weekend maintenance).

Yes, 100% compatible. aduanasHQ is fully prepared for DUIMP, the new declaration format from Portal Único.

What we offer:

• Automatic DUIMP generation following the Portal Único layout
• Data validation before submission (prevents errors)
• Full integration with Portal Único Siscomex
• Traditional DI support when needed (transition)
• DUIMP-specific training included

DI → DUIMP transition: P4 supports both formats simultaneously. You choose when to migrate fully to DUIMP.

Benefit: Faster clearance process, fewer documents, compliance with new RFB requirements.

Warehouse-specific workflows. It is not the same process as a standard import.

P4 manages:

• Warehouse entry: Registering goods under a customs regime
• Storage: Inventory control separated by client and regime
• Movements: Between warehouse areas with traceability
• Clearance: Complete outbound documentation
• Taxes: Calculation of suspended vs. paid taxes
• RFB reports: Automatic monthly inventory

Compliance: Automatic reports, segregation by customs regime, complete traceability.

Typical users: Dry ports, bonded terminals in Santos/Paranaguá/Rio, general warehouses.

It depends on your operation. We do not have a single price because every client is different.

Factors that affect the price:

• Number of users (customs brokers, office staff, warehouse)
• Monthly declaration volume (DUIMP/DI/DU-E)
• Brazil only or multiple countries
• Required integrations (ERP, WMS, etc.)
• Add-on modules (OEA, bonded warehouse, etc.)

What we do NOT charge:

• ❌ Per-declaration commission (unlimited processing)
• ❌ Per-document fees
• ❌ Update fees (included)
• ❌ Support fees (included)

Get a quote: Complete a 5-minute questionnaire → Receive a quote within 24 hours.

Typical Brazilian client: 5-12 users, 120-200 declarations/month. See example profiles →

Yes, fully automated tax calculation.

Taxes calculated automatically:

• II (Imposto de Importação / Import Duty): Per NCM and TEC Mercosul
• IPI (Imposto sobre Produtos Industrializados): Rates by NCM
• PIS/COFINS: Import and standard regime
• ICMS: Varies by destination state (UF)
• Freight Surcharge (AFRMM): Ocean freight

Special regimes:

• Ex-Tarifário (II reduction/exemption)
• Drawback (tax suspension)
• Temporary admission
• Customs warehousing

Updates: NCM tables, rates, and TEC Mercosul are updated automatically when RFB publishes changes.

Result: Accurate calculations, RFB compliance, zero arithmetic errors.