The Post-Brexit Customs Burden
Before 2021, UK sellers exporting to EU customers completed minimal paperwork. Goods flowed freely within the European Union.
Post-Brexit, every UK export now requires customs documentation: export declarations, customs entry codes (CN codes), and proof of origin. Each shipment of 10+ items now involves 30-45 minutes of administrative work. For a mid-sized UK exporter shipping 200 parcels weekly, this translates to 100-150 hours monthly—easily 2-3 full-time employees.
Furthermore, HMRC's Customs Handling of Import and Export Freight (CHIEF) and its successor, the Customs Declaration Service (CDS), require real-time data submission. Errors trigger delays, penalties, and customs holds.
The financial stakes are material: a misfiled CN code can result in duty assessment errors or shipment seizure. A missing customs declaration can delay an export by 24-48 hours, damaging seller reputation on Amazon or Shopify.
What Logistics Operations Actually Covers
Logistics operations is often conflated with physical logistics (warehouse, shipping, delivery). They are distinct. Logistics operations refers to the administrative layer that enables physical logistics.
The Five Components of Logistics Ops
Customs documentation: preparing export declarations, commercial invoices, and CN code assignment for each shipment.
Shipment tracking: monitoring carrier tracking numbers, proactively notifying customers of delays, resolving carrier disputes.
Carrier coordination: managing relationships with DHL, FedEx, Royal Mail, and regional couriers; negotiating rates; escalating service issues.
Rate management: comparing shipping rates across carriers, selecting optimal carriers per destination, updating carrier costs in e-commerce platforms (Shopify, WooCommerce, Amazon).
Customs compliance: monitoring HMRC updates, ensuring shipments comply with prohibited goods rules, managing certificates of origin, managing duty and tax declarations.
Admin vs. Physical: The Critical Distinction
Physical logistics = warehouse staff picking items, packing boxes, arranging pallets. This requires physical presence and is difficult to outsource globally.
Logistics operations = managing the data, documentation, and carrier communication. This is 100% digital and ideal for remote outsourcing.
A UK exporter with a UK warehouse uses Treba for logistics operations (documentation, tracking, customs compliance) while the local warehouse handles physical logistics (packing, labelling, palletisation).
Customs Documentation and HMRC Compliance
Export Declarations and CN Codes
Every UK export requires an export declaration filed with HMRC. The declaration must include: exporter details, consignee details, goods description, CN code (commodity code), value, and weight.
CN codes are the critical pain point. A single product may have multiple valid codes depending on material composition. A cotton-polyester blend may use CN code 5512.19 (woven fabric, mixed) rather than 5509.92 (synthetic mixed thread), resulting in different duty treatments in destination countries.
Misclassification incurs penalties: £300-1,000 per code error, plus customs holds on future shipments.
Customs Declarations and Duty Deferral
For high-volume exports, HMRC allows duty deferral: declaring and paying import duties on a monthly schedule rather than per shipment. This requires maintaining a monthly customs account and reconciling shipment data against duty payments.
Our team manages this: logging into HMRC's CDS portal, filing declarations, reconciling monthly statements, and flagging discrepancies.
Real-World Example: Exporting 50 Orders to France
- UK seller ships 50 clothing orders to France on Monday. Each order contains 1-3 items. Treba's logistics coordinator:
- Pulls order data from Shopify (items, weights, customer address).
- Assigns CN codes to each product (e.g., 6204.62 for women's cotton trousers).
- Calculates declared value for customs using seller's stated product price.
- Generates commercial invoices and packing lists for each shipment.
- Files 50 individual export declarations with HMRC CDS within 4 hours.
- Generates customs labels (C88 forms if using traditional export) or embeds declaration reference in parcel label.
- Hands off to courier (Royal Mail, DHL, or regional partner) with complete customs documentation.
- Tracks shipments and proactively emails French customers with delivery updates.
Team Structure and Cost Comparison
A mid-sized UK exporter handling 200-300 shipments weekly typically maintains this team structure:
Comparison
| Role | Responsibility | Typical Cost (Kenya) |
|---|---|---|
| Logistics Operations Manager | Oversees customs compliance, carrier negotiations, SLA management, monthly HMRC reconciliation | £11,200/year (KES 1.68M) |
| Customs Documentation Specialist (2) | Customs declarations, CN code assignment, commercial invoices, export filing | £8,400/year each (KES 1.26M) |
| Shipment Tracking Coordinator | Tracking number management, customer proactive notifications, carrier dispute resolution | £8,400/year (KES 1.26M) |
| Carrier Negotiation Specialist (Part-time) | Rate management, carrier contract updates, service level agreements | £5,200/year (KES 780k) |
Total outsourced cost for a 5-person team: £41,200/year (KES 6.18M). A UK equivalent would cost £130-160k annually including employment costs.
Cost Breakdown: UK vs. Nairobi
Comparison
| Line Item | UK (London) | Treba (Nairobi) | Saving |
|---|---|---|---|
| Logistics Manager | £36-42k | £11,200 | £25-31k |
| Customs Specialist (2) | £28-32k each (£56-64k total) | £8,400 each (£16,800 total) | £39-47k |
| Tracking Coordinator | £26-30k | £8,400 | £18-22k |
| Carrier Negotiation (Part-time) | £18-22k | £5,200 | £13-17k |
| Subtotal (salaries only) | £136-158k | £41,600 | £95-117k |
| Employer costs (20% + benefits) | £27-32k | £4,160 | £19-23k |
| Software: HMRC CDS, CargoWise, rate engines | £6-10k | £800 | £5-9k |
| TOTAL ANNUAL COST | £169-200k | £46,560 | £119-149k |
Tools and Platforms
Core Systems
HMRC Customs Declaration Service (CDS): the primary interface for filing export declarations. Replaces CHIEF system (deprecated June 2023). Requires real-time connectivity and trained operators.
CargoWise (now part of Flexport): end-to-end visibility platform for shipment tracking, customs document generation, and carrier integration. Integration with Shopify and WooCommerce via plugins.
FreightPOP: cloud-based freight management system with real-time carrier rate shopping, label generation, and customs form preparation.
Shopabl, Shipday, or similar: Shopify-native shipping automation apps that integrate carrier APIs and generate shipping labels.
Royal Mail, DHL, FedEx APIs: direct carrier integrations for real-time rate queries and tracking data pulls.
Operational Workflow: Daily Customs Filing
08:00 — Customs specialist logs into CDS portal, reviews yesterday's filed declarations for HMRC confirmations or rejections.
08:30 — Pulls order export from Shopify (new orders from 15:00 prior day cutoff).
09:00 — Assigns CN codes and values to each product. Uses commodity classification reference tool for borderline classifications.
- 10:00 — Generates commercial invoices in FreightPOP, embeds invoice and customs reference into parcel labels.
- 11:00 — Files export declarations in CDS for each shipment. CDS assigns Movement Reference Numbers (MRNs).
- 12:00 — Generates shipping labels with CDS reference embedded. Hands to local warehouse or courier.
- 14:00 — Tracks shipments in CargoWise, monitors for delays or carrier exceptions.
- 16:00 — Proactively emails customers with tracking links and expected delivery windows.
- 17:00 — Logs any carrier disputes or customs holds. Escalates to manager if SLA at risk.
Compliance Risk and Duty Calculations
Prohibited Goods and Screening
HMRC and destination country customs maintain restricted goods lists: certain chemicals, electronics components, animal products, and narcotics cannot be exported without licences. A cosmetics seller exporting to China must verify that products contain no prohibited ingredients per Chinese customs rules.
Our team screens every shipment against HMRC's restricted goods list and destination-specific requirements. Violations result in customs seizure or re-shipment (costing £500-2,000 per incident).
Duty and Tax Calculations
For exports to non-EU countries, VAT is typically zero-rated (seller doesn't charge; buyer pays on arrival). However, import duty depends on CN code and destination: a textile item (CN 6204) may face 12-15% duty in some countries, 0% in others under preferential trade agreements.
EU exports (post-Brexit) incur import VAT on arrival (20% in most EU countries). This is buyer's responsibility, but sellers must declare the value correctly to avoid customs assessment challenges.
Our team maintains current duty tables for 195 destination countries, updated quarterly via HMRC and World Customs Organisation data.
Key takeaways
• Post-Brexit customs documentation transformed logistics operations from a 5-minute task (pre-2021) into a 30-45 minute task per shipment (2025 onwards). • Logistics operations = customs declarations, shipment tracking, carrier coordination, and HMRC compliance.
It's 100% digital and ideal for remote outsourcing. • A 5-person outsourced team in Nairobi costs £46.6k annually vs. £169-200k in the UK—a saving of £122-153k per year. • Critical compliance risks: CN code misclassification (£300-1,000 penalty per error), prohibited goods (shipment seizure), and duty miscalculation (customs holds). • HMRC's Customs Declaration Service (CDS) requires real-time filing; our team manages all filings, reconciliations, and monthly duty reports.
Written by
Treba Research
Treba editorial team — expert analysis on outsourcing, compliance, and building distributed UK–Kenya teams.
