MyCustomsInfo®
Client Implementation Guide · v1.1 · 11/05/2026
Welcome aboard

Your 30-day path to a fully audited customs operation

You have signed. Now we move. This guide walks you through what happens between today and your first live audit cycle, what we do, what we need from you, and what you receive at the end of each week.

30 days
From kick-off call to your first audit cycle
100%
Of your electronic declarations audited, not a sample
3 regimes
UK CDS, EU UCC and US CBP covered from day one
Why implementation is faster with us

Three things we have already done for you

Most platforms ask you to do the heavy lifting. We have pre-built the parts that normally take months, so your implementation starts well past the usual setup work.

Pre-built data connections

Direct links to HMRC CDS, EU national customs systems and US CBP ACE, plus established broker data feeds. No bespoke integration project.

Modular, no-tech-required setup

No code to write. No IT project to schedule. We configure the modules you need, you authorise the data flow, the system goes live.

A dedicated team at every step

Your named implementation lead, your customs compliance specialist and a licensed broker partner walk every week with you. You are never working it out alone.

Your 30-day roadmap

Week by week, from kick-off to first audit cycle

The roadmap is built around four week-long phases. Each week ends with a deliverable you can see. By day 30, your declarations are being audited automatically and you have your first findings pack in hand.

Week 01

Foundation

Days 01 to 07
What we do
  • Kick-off call and named team introduction
  • Provision your isolated tenant on AWS
  • Set up your user accounts and access roles
  • Issue data authorisation templates for HMRC, EU customs and CBP
What you do
  • Confirm your customs regimes in scope
  • Sign data authorisations for your importer and broker data
  • Nominate your internal point of contact
Deliverable Live tenant, signed authorisations, kick-off pack issued
Week 02

Configuration

Days 08 to 14
What we do
  • Activate your data feeds from customs authorities
  • Connect your nominated broker data sources
  • Configure HS code library, FTA logic and duty rate engine
  • Map your supporting document workflow
What you do
  • Send a sample set of recent declarations
  • Introduce us to your broker partners
  • Confirm your supporting document standards
Deliverable Live data feeds, configured audit rules, sample run completed
Week 03

First data run

Days 15 to 21
What we do
  • Run your first full ingest cycle of live declarations
  • Grade missing data and assess document completeness
  • Surface initial classification and duty rate findings
  • Pair findings with your licensed broker for physical audit
What you do
  • Review the first set of surfaced findings
  • Authorise broker engagement on flagged declarations
  • Confirm your reporting cadence and recipients
Deliverable First findings report, broker engagement live, dashboards populated
Week 04

Go-live

Days 22 to 30
What we do
  • Complete first end-to-end audit cycle
  • Deliver first audit pack and recovery opportunities
  • Hand over standing reporting suite
  • Schedule your 60-day performance review
What you do
  • Review your first audit pack and recovery summary
  • Confirm any approvals needed for broker filings
  • Embed your weekly review rhythm
Deliverable First full audit cycle complete, recovery pipeline open, you are live
How the platform works under the hood

Your embedded customs audit team, end to end

Once you are live, every declaration that flows into MyCustomsInfo® follows the same five-stage process. The first four stages are electronic and run continuously. The fifth stage brings in your licensed customs broker partner for physical document audit and amendment filing.

1

Data sources

  • You authorise data transfer
  • Electronic declarations route to MCI
  • You instruct your brokers
  • Supporting documents flow in
2

Ingest engine

  • Receive data submissions
  • Capture electronic declarations
  • Capture supporting documents
  • Match documents to declarations
3

Ingestion and processing

  • Evaluate every declaration
  • Grade missing data
  • Create indexed file record
  • Attach and link documents
  • Validate data integrity
4

100% electronic audit

  • Data element validation
  • HS code and duty rate review
  • Free Trade Agreement check
  • Statistical data collation
5

Licensed broker review

  • Physical document audit
  • Findings pack issued to broker
  • Broker determines next steps
  • Broker files any amendment
How we work with your broker. MyCustomsInfo® reconciles your declarations against your supporting documents and surfaces classification, valuation and duty findings. Your licensed customs broker reviews those findings, determines the correct action and files any corrected declaration. The platform is the audit engine. The broker remains the filer of record.
By customs regime

How implementation looks in your regime

The 30-day roadmap and the audit process apply across every regime we cover. What changes is the authority, the data source and the filer of record. Switch the tab for your regime.

Authority
HM Revenue and Customs
Data source
CDS Trader Report Extracts
Filer of record
Your UK customs agent or in-house declarant
Recovery routes
C285, C2001 and post-clearance amendment

What we audit for you

  • Every CDS declaration row reconciled against your commercial invoices, packing lists, bills of lading and certificates of origin
  • Commodity code validation against the UK Integrated Online Tariff
  • Preference eligibility checks under UK Free Trade Agreements
  • Customs procedure code and additional procedure code use
  • Customs value methodology and inclusion or exclusion of freight, insurance and royalties
  • Identification of overpayments eligible for recovery via C285 or C2001

What you receive each cycle

  • Reconciliation report by entry, by commodity code and by supplier
  • Recovery pipeline showing each opportunity, value at stake and recommended route
  • Errors register flagging declarations at risk of HMRC challenge
UK CBAM note. UK CBAM goes live 01/01/2027 under the Finance Act 2025. We will activate the UK CBAM module on your tenant during Q4 2026 at no additional setup cost, ready for the first reporting period.
Authority
National customs authority of the Member State of import
Data source
Member State declaration extracts and broker data feeds
Filer of record
Your appointed customs representative under UCC Article 18
Recovery routes
National post-clearance amendment and refund procedures

What we audit for you

  • Every EU import declaration reconciled against your supporting documentation set
  • CN8 classification validation against the Combined Nomenclature and TARIC measures
  • Preference claims under EU Free Trade Agreements with statement on origin and REX number checks
  • Customs value under UCC Article 70 including transfer pricing and assist treatment
  • Anti-dumping and countervailing duty exposure across affected commodity codes
  • Inland recovery opportunities by Member State

What you receive each cycle

  • Pan-EU reconciliation dashboard with drill-down by Member State, by importer and by commodity
  • Recovery pipeline by Member State with recommended route and limitation period
  • EU CBAM compliance pack for declarations in scope
EU CBAM live. EU CBAM under Regulation (EU) 2025/2620 is in force across all six covered sectors. The MCI CBAM module is active on EU tenants from day one and reports against actual emissions or default values with annual mark-ups per the regulation.
Authority
US Customs and Border Protection
Data source
ACE ES-001, ES-002, ES-003 reports under your authorisation
Filer of record
Your licensed customs broker (Trade-IQ LLC in the MCI partner network)
Recovery routes
Post-Summary Correction, Reconciliation, Protest, Drawback

What we surface for you and your broker

  • Every ACE-recorded entry reconciled against the data behind it: commercial invoice, broker entry worksheet, certificates of origin and steel and aluminum melt-and-pour or smelt-and-cast evidence where applicable
  • HTSUS classification anomalies identified for licensed broker review
  • Section 232 rate engine across steel, aluminum and copper, including Chapter 99 heading use and licence tracking under SIMA, AIM and CIMA
  • Section 301 and IEEPA exposure across affected origins
  • Customs value reconciliation including assists, royalties and inter-company adjustments
  • Drawback and PSC opportunities surfaced with documentation pack

What you receive each cycle

  • Findings pack issued jointly to you and your licensed broker
  • Recovery pipeline by entry with recommended route, value at stake and supporting evidence
  • IEEPA and Section 232 watch list of entries at risk under current proclamations
How filing works. Under 19 U.S.C. §1641, only a licensed customs broker may transact customs business with CBP. MyCustomsInfo® is the audit engine. Trade-IQ LLC, our licensed broker partner in the US, determines the correct action on every surfaced finding and files any corrected entry. Other platforms show you ACE data. MCI audits the data behind it.
Your data, ringfenced from day one

Six principles that govern how we handle your data

From the first NDA to the last day of service, your data is isolated, encrypted, logged and governed. These are not aspirational statements. They are the operating constraints built into the platform.

No commingling, ever

Schema-per-tenant in PostgreSQL with Row Level Security on every table. Collection-per-tenant in MongoDB. Dedicated S3 storage per tenant. Your dataset never shares a row, a folder or a query layer with another client.

ISO 27001 A.8.10, A.8.11

Tenant-specific encryption

A dedicated AWS KMS Customer Managed Key encrypts every byte of your data at rest. Data in transit uses TLS 1.2 or higher. Your tenant's key is mathematically isolated. No other tenant can decrypt your data.

ISO 27001 A.8.24

Mutual NDA before any data moves

A mutual non-disclosure agreement is signed before any sample data is exchanged during scoping. No data leaves your systems until both parties are bound. The NDA is issued from CustomsPlus Ltd as the contracting entity.

Issued in week one

DPA before any live data flows

A UK GDPR Article 28 Data Processing Agreement is signed before live data is ingested. We act as your Processor. You remain Controller. Our DPA is on standing terms aligned to the ICO model and covers sub-processor disclosure, international transfers and breach notification.

UK GDPR Article 28

Audit trail with WORM protection

Every system access is logged to AWS CloudTrail in write-once-read-many storage. Logs cannot be edited, deleted or backdated, by us or by anyone else. You can request your access log at any time.

ISO 27001 A.8.15

ISO 27001:2022 trajectory

All 93 Annex A controls are mapped and under active implementation. Certification target Q4 2026. Until certification, your security team can request the live control mapping document MCI-ISO-001 for review.

93 controls mapped

Legal pack, issued before week one

Mutual NDAData Processing AgreementInformation Security white paperISO 27001:2022 control mappingUK GDPR Article 30 ROPA extract
Data residency stays where you do. UK clients on eu-west-2 (London). EU clients on eu-central-1 (Frankfurt) or eu-west-1 (Dublin). US clients on us-east-1 (Virginia). No cross-region transfer unless you direct it in writing.
What you do vs what we do

The effort split, in plain terms

A practical view of who does what during the 30 days. Your effort is concentrated in week one, then drops off sharply.

ActivityOwned by youOwned by MyCustomsInfo®Time you should plan for
Kick-off callAttendRun the agenda and outputs60 minutes
Data authorisationsSign and returnIssue, lodge and track30 minutes
Tenant provisioningNominate usersProvision, secure and test15 minutes
Data feed connectionAuthorise broker accessConfigure and test feed30 minutes
Audit rule configurationConfirm your standardsBuild and validate the rule set45 minutes
First data runNothingRun, monitor, surface findings0 minutes
Findings reviewReview and authorise broker actionIssue findings pack and broker briefing60 minutes
Go-live and first audit cycleReview your audit packComplete audit, deliver pack, embed reporting45 minutes
What we ask you to send

Required supporting documents

These are the six document types we need to run a complete audit. We accept them in any standard format and store them in your isolated tenant.

1
Electronic declarationThe system-issued electronic record from CDS, the EU national system or ACE
2
PDF declarationThe printable version of the same declaration for human review and audit trail
3
Commercial invoiceThe seller's invoice showing values, INCOTERMS, parties and goods description
4
Packing listThe packed inventory showing quantities, weights, packages and markings
5
Bill of lading or air waybillThe transport document evidencing carriage and carrier
6
Certificate of originThe evidence of origin used to claim any preference or special treatment

Book your 30-minute kick-off call

Pick a time that works for you. We will use the 30 minutes to confirm your regimes, agree your named team, and start week one of your roadmap.

Book your kick-off callEmail a question first
Prefer to talk? Call us on +44 151 808 0103, Monday to Friday, 09:00 to 17:30 (BST).
MyCustomsInfo® is the SaaS trade compliance platform operated by CustomsPlus Ltd.
CustomsPlus Ltd, registered in England and Wales, Company No. 12327750. Registered office Cholmondeley House, Dee Hills Park, Chester CH3 5AR.
CONFIDENTIAL · CustomsPlus® Proprietary · MyCustomsInfo® Platform · All Rights Reserved © 2026
Document control
Version 1.1 · 11/05/2026
MCI_ClientImplementationGuide_2026-05-11

US Regulatory Notice. MyCustomsInfo® is an independent compliance auditor. It does not conduct customs business as defined under 19 U.S.C. §1641. The specific tariff classification to be applied to any entry of merchandise is to be determined by a licensed Customhouse broker. MyCustomsInfo® output does not constitute entry preparation, classification advice, or customs broker services. Preparation and filing of Post-Entry Amendments, Post-Summary Corrections, protests, and drawback claims must be performed by a licensed customs broker. US broker records are held in US AWS regions in compliance with 19 C.F.R. §111.23. Primary authority: CBP HQ H272798 (January 2017). Supporting authority: CBP HQ H350722 (January 2026).