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Head-to-head · Customs Management Software

Customs Declarations UK vs Customs Window

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Customs Declarations UK #5 in Customs Management Software 8.9/10 Paid ✓ 5 of 5 features Visit site
Customs Window #8 in Customs Management Software 8.6/10 Pricing on request ✓ 5 of 5 features Visit Customs Window

Customs Declarations UK leads on 0 checks, Customs Window on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreCustoms Declarations UK · 8.9/10

Customs Declarations UK scores higher on our rubric for customs management software: 8.9 against 8.6 out of 10; our editors rank them #5 and #8.

Customs Declarations UK is the better fit for UK businesses needing full declaration workflows. Customs Window is the better fit for irish and UK e-commerce customs operations.

  • Customs Declarations UK fits best

    UK businesses needing full declaration workflows

  • Customs Window fits best

    Irish and UK e-commerce customs operations

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Side by side

Feature Customs Declarations UK 8.9/10 Visit ↗ Customs Window 8.6/10 Visit ↗
At a glance
Editor score 8.9 8.6
Ranking #5 in Customs Management Software #8 in Customs Management Software
Best for UK businesses needing full declaration workflows Irish and UK e-commerce customs operations
Pricing model Paid Paid
Starting price £1/unit usage-based —
Free plan — Not checked yet
Free trial — —
Deployment Cloud Cloud, Mobile
Platforms Web Web
Support Email, Phone Email, Phone, Docs
Integrations 6 integrations 6 integrations
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Customs Declarations UK 5/5 · Customs Window 5/5
Declaration filing ✓ ✓
HS classification ✓ ✓
Duty & tax calculation ✓ ✓
Compliance records ✓ ✓
API access ✓ ✓
Specs
Supported regions Multi-country Multi-country
Monthly declaration limit Not checked yet Not checked yet
Our review
Pros
  • Covers CDS, S&S GB, NCTS6, ICS2, GVMS and ELO filings
  • OCR, AI extraction, bulk uploads and declaration cloning reduce manual entry
  • APIs connect with ERP, TMS and freight systems
  • Supports Irish AIS/AES and UK CDS declarations
  • Bulk uploads through Excel, CSV and API
  • Integrates with marketplaces, ERP systems and carriers
Cons
  • No free plan for occasional or low-volume users
  • Pay-as-you-go charges apply per declaration, departure, arrival, GMR or envelope
  • Its strongest verified coverage is GB-focused despite EU functionality
  • Pricing is tailored rather than publicly itemized
  • Founded in 2022, with a shorter operating history
  • Best suited to Irish and UK-focused customs operations
Our verdict

Customs Declarations UK is cloud-based software for freight forwarders, hauliers, customs brokers, importers, exporters and traders. It supports GB CDS import and export declarations, safety and security filings, EU ICS2 entries, NCTS6…

Read the review →

Customs Window is a cloud customs-management platform for e-commerce businesses, customs agents, logistics facilitators, SMEs and larger organizations. It prepares and submits import and export declarations, supports Irish AIS/AES and UK…

Read the review →
  1. Customs Declarations UKCustoms Management Software 8.9Paid
  2. Customs WindowCustoms Management Software 8.6Pricing on request

Strengths and trade-offs

  • Customs Declarations UK — where it wins

    • Covers CDS, S&S GB, NCTS6, ICS2, GVMS and ELO filings
    • OCR, AI extraction, bulk uploads and declaration cloning reduce manual entry
    • APIs connect with ERP, TMS and freight systems

    Where it doesn't

    • No free plan for occasional or low-volume users
    • Pay-as-you-go charges apply per declaration, departure, arrival, GMR or envelope
    • Its strongest verified coverage is GB-focused despite EU functionality

  • Customs Window — where it wins

    • Supports Irish AIS/AES and UK CDS declarations
    • Bulk uploads through Excel, CSV and API
    • Integrates with marketplaces, ERP systems and carriers

    Where it doesn't

    • Pricing is tailored rather than publicly itemized
    • Founded in 2022, with a shorter operating history
    • Best suited to Irish and UK-focused customs operations
  • Customs Declarations UK8.9/10 · Paid

    A broad customs filing platform with clear pay-as-you-go charges and strong GB coverage.

    Visit siteFull verdict →
  • Customs Window8.6/10 · Pricing on request

    A capable customs platform for Irish and UK operations with tailored, sales-led pricing.

    Visit Customs WindowFull verdict →

More comparisons

All customs management software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update