CIS and Construction in 2026: What Construction Owners Need to Know

The UK construction market in 2026 is stabilising after several challenging years, with a healthier pipeline of infrastructure, housing and public sector projects coming through. At the same time, HMRC is tightening its grip on CIS, tax reporting and supply‑chain compliance, making payroll and CIS a strategic risk area rather than just an admin task.

For construction owners, that combination means more opportunity – but also more scrutiny.

The Construction Market in 2026

Construction activity this year is being driven by:

• Ongoing infrastructure and regeneration projects across transport, energy and public services.

• Continued pressure to deliver new homes alongside retrofit and sustainability programmes.

• A stronger focus from clients on reliability, compliance and governance throughout the supply chain.

Margins remain tight, materials and labour costs are still under pressure, and main contractors are expected to carry more responsibility for compliance in their subcontractor base. In this context, efficient, compliant CIS and payroll processes become a real competitive advantage when tendering and delivering work.

CIS: Tougher Rules and More Enforcement

CIS has been a fixture in construction for years, but 2026 is seeing a clear shift in how HMRC applies the rules.

Key themes:

• More focus on accuracy: Correct registration, verification, deduction rates and monthly returns are now non‑negotiable, with less tolerance for “admin errors”.

• Supply‑chain risk: HMRC is increasingly interested in who sits behind payments, whether chains are being used to disguise employment, and whether deductions and taxes are actually reaching HMRC.

• Status and documentation: Contracts, statements, and evidence of how you decided someone is under CIS (rather than PAYE) are becoming critical if HMRC reviews your arrangements.

In practice, this means construction businesses need stronger internal controls, better records, and clear visibility of CIS across all projects and entities.

Digital Tax and CIS Subcontractors

Alongside stricter CIS enforcement, 2026 is the year many self‑employed CIS subcontractors either have already moved, or are preparing to move, to digital tax reporting.

What this looks like on the ground:

• Subcontractors are expected to keep digital records of income and expenses rather than relying on paper or ad‑hoc spreadsheets.

• Quarterly tax updates are becoming the norm for many, which makes timing and accuracy of CIS statements more important than ever.

• Discrepancies between CIS deductions, what contractors report, and what subcontractors submit to HMRC are more visible in a digital system.

For main contractors, that means CIS data has to be right first time. Poor‑quality records or late statements risk disputes with subcontractors, knock‑on delays and reputational damage.

What This Means for Construction Owners

Bringing it together, construction owners in 2026 are facing three big realities:

1. Work is available – but clients, lenders and public bodies are more risk‑averse and compliance‑driven.

2. HMRC expects CIS to be managed professionally, with proper systems, documentation and assurance.

3. Digital tax reporting makes errors and inconsistencies easier to spot – and harder to explain away.

Businesses that still run CIS and payroll on manual spreadsheets or fragmented systems will find it harder to keep up, and may face penalties, cash‑flow disruption and lost tenders.

How Riddingtons Payroll Supports CIS in 2026

Riddingtons Payroll is built around construction and CIS, so we understand both the commercial pressures of running sites and the compliance demands from HMRC.

We help construction owners by:

• Taking ownership of CIS processes: verification, deductions, statements and returns, backed by clear audit trails and robust controls.

• Integrating CIS with payroll and digital tax requirements, so your data is consistent and ready for modern reporting expectations.

• Providing specialist support on status, documentation and supply‑chain risk, so you can demonstrate that you “know your chain” and have taken reasonable care.

• Giving you clear, practical guidance rather than jargon, so directors, finance teams and site managers can all understand what good CIS practice looks like.

In a 2026 market where compliance is under the spotlight, partnering with a specialist like Riddingtons allows you to focus on winning work and delivering projects, while we keep your CIS and payroll running accurately, efficiently and in line with current expectations.