Can You Pay a Subcontractor Without CIS?

Everything You Need to Know

Can you pay a subcontractor without CIS? It’s a question that many contractors ask, especially when they are new to the construction industry or unsure about their obligations.

The short answer? In most cases, no. But like many things in construction accounting, there are some nuances to be aware of.

As specialists in construction accounting, we help businesses stay compliant every day. So let’s break it all down clearly and simply.

Summary

• Most contractors must operate under CIS when paying subcontractors
• Failing to apply CIS correctly can lead to penalties and repayments
• There are limited exceptions depending on the type of work
• Getting it wrong can impact your cash flow and compliance
• Working with a specialist accountant helps you avoid costly mistakes

Do You Always Have to Use CIS?

If you are a contractor paying subcontractors for construction work in the UK, you are generally required to operate under the Construction Industry Scheme (CIS).

This means you must:

Verify your subcontractors with HMRC
Deduct the correct percentage from their payments
Submit monthly returns

Trying to pay subcontractors outside of CIS when it applies is not something you can simply choose to do. HMRC expects compliance, and they take it seriously.

When Might CIS Not Apply?

There are some situations where CIS may not apply, but these are quite specific. For example:

The work being carried out is not classed as construction under CIS
You are paying for materials only (with no labour involved)
The subcontractor is genuinely outside the scope of the scheme

However, these situations can be easy to misunderstand. What seems like a non-CIS payment could still fall within the rules. That is why it is always best to double-check.

What Happens If You Pay Without CIS When You Shouldn’t?

If you fail to apply CIS when required, HMRC will not simply overlook it.

You could:

Be required to repay the tax that should have been deducted
Face penalties and interest charges
Experience disruption to your cash flow

And importantly, HMRC will hold you responsible, not the subcontractor.

If you want to understand the risks in more detail, take a look at our guide on What Happens if CIS Deductions are Wrong, where we explain the consequences and how to fix mistakes.

Understanding Your Responsibilities

One of the biggest challenges for contractors is knowing exactly where they stand.

Are you a contractor, a subcontractor, or both?
What rate should you deduct?
Who is responsible for what?

If you are unsure, our guide on How does CIS work for contractors and subcontractors breaks this down clearly, helping you understand your obligations and avoid confusion.

How to Stay Compliant

The best way to avoid issues is to make sure everything is set up correctly from the start.

This includes:

Registering for CIS with HMRC
Verifying subcontractors before payment
Applying the correct deduction rates
Keeping accurate records

If you have not registered yet, our step-by-step guide on How to Register for CIS will walk you through the process.