Still filing TSS by hand?
Take a faster lane.
iTSS is an AI-powered declaration engine built to streamline GB–NI declarations.
Feed it a photo, CSV, or API data, and iTSS auto-fills your declaration and submits it to TSS in around 90 seconds, all while eliminating duplicate data entry.
manual
AI lane
You're in good company
Three TSS bottlenecks. iTSS removes them all.
Replace the manual work slowing TSS down with an automated, AI-powered workflow.
One page. Zero scrolling. Fill and file.
TSS can require you to switch between multiple screens. iTSS puts every field on one page, so you can simply fill, click and file.
File it once. iTSS mirrors it across every system.
Move goods through Ireland's AIS/AES, GB's CDS and other national customs systems alongside TSS, without re-keying. iTSS mirrors declaration data across connected systems automatically, in both directions.
AIS/AES
(GB–NI)
Upload it. iTSS does the rest.
iMagic reads photos and documents and pulls out the information you need, CSV uploads bulk-fill declarations, and IDP extracts and validates line items. What used to be manual transcription is now as simple as drag-and-drop: all while saving you precious time.
Everything TSS should be, built with AI
Submit accurate CDS declarations with AI-assisted validation, reduce manual work, and grow your Northern Ireland trade with confidence.
Up to 99% accuracy
- AI-assisted compliance checks
- Eliminate manual rework
- Reduce risk of fines & errors
Up to 50% less time and cost
- Faster declarations
- Fewer errors
- Built for high-volume trade
AI built by customs experts
- Automate the entire declaration workflow
- Built by certified customs experts
- AI-assisted declarations with built-in validation
Three steps to faster NI customs filing
Quick onboarding
Sign up and connect to HMRC CDS to import your existing shipment data.
AI validates & classifies
Get smart HS code classification, error checks and Windsor Framework checks before you file.
Submit and go
Review, submit to HMRC CDS / TSS and get an instant audit trail.
Where Trader Support Service is slowing you down
TSS does its job as a no-cost starting point. As your GB–NI shipments scale, the parts it leaves to you become the parts that cost you time, accuracy, and visibility.
Slow, manual process
TSS can involve significant manual data entry. iCustoms automates submissions in around 90 seconds.
Multi-screen, scroll-heavy forms
TSS can spread declarations across multiple screens. iTSS puts every field on one page for fast, keyboard-driven filing.
No built-in mirroring across your other customs systems
Moving goods through AIS/AES, CDS and other customs systems means re-keying shipment data. iTSS mirrors declaration data across connected systems automatically.
No data enrichment
TSS requires manual data entry. iTSS reads images, CSVs, and IDP data to automatically fill and enrich declarations.
Pre-submission automation
TSS does not automate declarations. iTSS validates declaration data before submission, helping catch errors earlier and reduce manual rework.
AI-assisted HS classification
HS classification remains a manual task for the trader. iCustoms AI assigns codes with up to 99% accuracy, helping reduce classification errors.
Limited reporting & visibility
TSS provides limited operational visibility compared with iTSS. iTSS gives you real-time dashboards, analytics and a full audit trail.
ERP & system integration
TSS isn't designed as an ERP/WMS integration layer. iTSS integrates with 200+ business systems.
Doesn't scale
As volumes grow, manual filing can become a bottleneck. iTSS scales with you, handling thousands of declarations at speed.
What changes when you move to iTSS
iTSS doesn't change your compliance obligations. It removes the manual work behind them, while staying fully aligned with HMRC CDS and the Windsor Framework.
Swipe to see the full comparison →
| Capability | iTSS by iCustoms | TSS (free portal) |
|---|---|---|
| Declaration time | Around 90 seconds, AI-assisted | Time-consuming manual form-filling |
| Form layout | One-page layout with all fields for fast keyboard entry | TSS can require multiple screens |
| Mirroring with Ireland / other systems | Automatically mirrors data to/from AIS, AES & other connected customs systems | Re-keying may be required across systems |
| Data enrichment | iMagic, CSV & IDP auto-fill declaration data in seconds | Manual data entry from source documents |
| Pre-submission validation | Every field checked before submission | Limited pre-submission automation |
| HS code classification | AI-assisted, up to 99% accuracy | Manual classification by the trader |
| Reporting & analytics | Real-time dashboards, full audit trail | Limited operational visibility |
| System integration | API access to 200+ business systems | Not designed as an ERP/WMS integration layer |
| Scales with volume | Same speed at 10 or 10,000 declarations | Manual processes can become a bottleneck |
Before you switch, your questions answered
Do I need TSS to trade between GB and Northern Ireland?
Do I need to deregister from the TSS portal?
How long does onboarding take?
Is this only for high-volume traders?
What does it cost compared to the free TSS portal?
See the difference for yourself
Disclaimer: iTSS is an iCustoms solution, independent of and not affiliated with HMRC's Trader Support Service.