Customs OS vs DutyDeclared
Customs OS
customsos.comDutyDeclared
dutydeclared.comSide by side
| Figure | Customs OS | DutyDeclared |
|---|---|---|
| Price from | — | £250/mo |
| Free plan | — | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | — | Yes |
| Plans published | 0 | 3 |
| Spec score · Customs Management Software | 7.2 (#14) | 8.0 (#4) |
| Company | The legal pages identify the maker as Customs OS, Inc.; the opened pages do not state its headquarters or founding year. | DutyDeclared Limited is registered in England and Wales under company number 16188124 and lists its registered office at 45 Pall Mall, London, SW1Y 5JG. |
| Integrations | The site asks whether Customs OS integrates with DMS, AGS, or Portbase but does not provide an answer on the opened page. | The terms identify HMRC CDS integration through its official API using OAuth 2.0 and describe API access for third-party integration. |
| Purpose | Customs OS reads document packets and cross-checks them with a deterministic rule engine to give brokers a reviewed file. | DutyDeclared is a cloud-based platform for preparing, validating, managing, and submitting UK customs import declarations to HMRC through the CDS API. |
| Security | Customs OS states that it uses TLS 1.2+ in transit, AES-256 at rest, tenant isolation, and least-privilege internal access. | The terms state that DutyDeclared uses TLS 1.3 encryption, Google Cloud KMS for tokens, and role-based access controls. |
| Support | The site lists [email protected] for support inquiries and offers a 30-minute product demo. | The pricing page lists email support for Starter and dedicated onboarding and support for Enterprise; the contact page offers existing customers technical, account, and declaration troubleshooting help. |
| Validation | The rule engine checks declared value, country of origin, incoterms, shipper, consignee, weights, and dates across documents. | The product says it validates fields against current trade regulations and flags risks involving UK/EU compliance, origin, value, and documents. |
Plans
DutyDeclared
- Starter£250 a month
- Professional£850 a month
- EnterprisePriced on request
In their own words
Customs OS
Customs OS is a web service for licensed customs brokers and their operations teams. It reads customs document packets, extracts fields and cross-checks information using a deterministic rule engine; document validation is described as being in private beta. Users can upload or drag in scanned or digital commercial invoices, packing lists, bills of lading, certificates of origin and arrival notices. Checks span declared value, country of origin, incoterms, shipper, consignee, weights and dates. Extracted values trace back to the source document and page, while pass or fail results link to named, versioned rules. Brokers can confirm or dismiss flagged exceptions, with decisions recorded against the packet. Customs OS does not file automatically: a licensed broker reviews outputs before acting. Packet content is sent to Google's Gemini models through the Vercel AI Gateway for extraction and validation, and the privacy policy says it is not used to train models. Listed safeguards include TLS 1.2+ in transit, AES-256 at rest, tenant isolation and least-privilege internal access. Pricing is on request. HTS classification, ISF watcher and CBP Form 7501 drafting are roadmap items, not current service features.
DutyDeclared
DutyDeclared is a cloud-based platform for preparing, validating, managing and submitting UK customs import declarations to HMRC through the CDS API. It extracts structured information from invoices, packing lists, export declarations and transport documents to populate declaration fields. Its Quick Editor lets users review uncertainties and edit HS codes or VAT, with totals syncing automatically. Validation checks fields against current trade regulations and flags risks related to UK/EU compliance, origin, value and documents.
Users can submit declarations to HMRC CDS, receive status notifications, track submissions, maintain audit trails and make amendments. AI assists with document extraction and HS commodity code classification, but users must review and verify its suggestions. The platform integrates with HMRC CDS through the official API using OAuth 2.0 and offers API access for third-party integrations. The free tier advertises 10 entries each month. Starter costs £250 a month and offers a 14-day trial; Professional costs £850 a month. Enterprise pricing is custom. The platform is aimed at importers, exporters, customs brokers, freight forwarders and trade teams.