Compliance Hub

Understand it.
Prove it.
Get paid for it.

These guides break down what's expected of a UK main contractor, in plain English. Understanding it is the first step — showing your clients you've got it covered is what wins the next job.

April 2026 — HMRC's CIS verification rules are now in force.

All Guides

The full
compliance
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Ten plain-English guides to help you understand the compliance landscape UK main contractors work in. Each guide references the relevant legislation and links to official sources — but it's general information, not legal advice, so always confirm your specific obligations with a qualified professional.

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Compliance checks

HMRC CIS

April 2026

HMRC CIS Subcontractor Verification

The "Knew or Should Have Known" rule is now in force. If you pay a subcontractor Gross without verifying their status, you are personally liable for the tax shortfall — even if they told you they were registered.

10 min read Read guide

Right to Work

Right to Work Checks for Subcontractors

UK main contractors have a legal duty to check every subcontractor's right to work before they start. Here's an overview of what the law requires, what documents are typically accepted, and what happens if it's not done.

8 min read Read guide

Insurance

How to Verify a Subcontractor's Insurance

A subcontractor's insurance certificate is not proof of cover. Here's how to get proper written confirmation from the insurer — and why it matters if something goes wrong on site.

7 min read Read guide

CSCS Cards

CSCS Cards: What You Must Check Before Work Starts

Knowing a subcontractor has a CSCS card isn't the same as checking it. Here's what each card type means, how to verify it's valid on the CITB register, and why it matters under the Building Safety Act.

7 min read Read guide

Record Keeping

Compliance Records: What to Keep and How Long

HMRC, the HSE, and the Home Office all have different retention requirements. Here's what you need to keep, for how long, and in what format — and what an audit actually looks like.

8 min read Read guide

Practical Guide

How to Onboard a Subcontractor Compliantly: The Complete Checklist

Before any subcontractor starts on your site, you're legally required to carry out several checks. Here's a recommended sequence — what to check, when to check it, and where to keep the records.

8 min read Read guide

Stop reading.
Start complying.

Subchecked automates every check covered in these guides — Right to Work, HMRC CIS, CSCS, insurance — and builds your audit trail automatically.