The details that matter when building for the UK.
Practical guides to UK company data, payments, ecommerce and software compliance, based on official sources and our development work.
- 3
- topics
- 28
- guides & tools
- UK
- market-specific
- real
- delivery evidence
Browse guides and tools by topic
Start where the operational risk sits: resolving a UK entity, moving money and goods, or keeping a product supportable and compliant. Each cluster joins source-backed guidance to practical implementation.
UK company data and identity
Practical guidance for UK company, charity, postcode and identity data: what each source proves, what it does not, and how to integrate it safely.
Open the cluster →14 guides & toolsUK payments and ecommerce
Architecture and operations for UK payments, ecommerce, tax, shipping and cross-border sales, grounded in production implementation choices.
Open the cluster →10 guides & toolsUK product engineering and compliance
UK-focused guidance on hosting, GDPR, accessibility, performance, migrations, operational resilience and agency delivery.
Open the cluster →How to use these guides
- 01What exact business decision must the system make?
- 02Which primary source supports each factual assumption?
- 03What happens when the API, supplier or user input is wrong or unavailable?
- 04What evidence, ownership and recovery path remain after launch?
UK guides and tools
Direct answers near the top, detailed boundaries underneath, and code or architecture you can take into a product discussion.
Build a charity lookup with the Charity Commission API
Resolve England and Wales register records with stable identifiers, explicit jurisdiction, provenance and manual-review paths.
Read the guide →Free toolCompanies House identity verification deadline calculator
Check director and PSC verification windows using a company lookup or manually entered details.
Use the tool →Making Tax DigitalBuilding HMRC MTD for Income Tax software
Choose build, integration or buy, then design OAuth, fraud headers, obligations, submissions and reconciliation as explicit controls.
Read the guide →Marketplace paymentsStripe Connect architecture for a UK marketplace
Choose the charge route from the commercial model, then reconcile fees, transfers, refunds, disputes and payouts in an internal ledger.
Read the guide →Site migrationMove from WordPress to Next.js without losing SEO
Score every legacy URL for demand, links, conversion and intent, then keep, redirect or retire it with single-hop rules and a tested cutover.
Read the guide →PHP securityPHP2Shell: a patch plan for Cyber Essentials and UK GDPR
Patch the critical PHP flaws within Cyber Essentials' 14 days, get proof from your host and decide whether a compromise needs an ICO report.
Read the guide →Technical and operational guidance only. Legal, tax, financial and compliance decisions need appropriately qualified professional advice.
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