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Definition of a building sub-contractor

Know the rules for contractors & subs under CIS to avoid issues with HMRC.

Under the Construction Industry Scheme (CIS), HMRC applies specific tax rules to contractors and subcontractors in the construction industry. Contractors are responsible for deducting tax from payments made to subcontractors and forwarding it to HMRC. These deductions act as advance payments toward the subcontractor’s income tax and National Insurance.

A subcontractor is defined as any business or individual that agrees to perform construction operations for another business (a contractor or deemed contractor). This applies whether the work is done directly or through others such as employees or further subcontractors. Notably, a business typically considered a main contractor can be a subcontractor if hired by another contractor, such as a local authority.

Subcontractors can include:

  • Companies, public bodies, partnerships and self-employed individuals.
  • Labour agencies or staff bureaus that supply or employ workers for construction.
  • Foreign businesses performing construction in the UK or its territorial waters.
  • Local authorities or public bodies engaged in construction work for others.
  • Gang-leaders who agrees with a contractor on the work to be done, and in turn receives payment for the work of the team.

Some businesses function as both contractors and subcontractors, paying others while also being paid for their services. These businesses must follow both sets of CIS rules depending on their role in each transaction.

A magical clause does not necessarily nullify employment status

A recent ruling has provided a timely reminder that substance trumps form in employment status disputes, and the mere insertion of a clause does not automatically change the employment status of workers. This case concerns an appeal by BCAL, a company that provides vehicle collection, inspection, delivery, and transportation services. The core dispute revolves around the employment status of hundreds of individuals who work as drivers for BCAL.

The standard-form contract contained a term that permitted the drivers to make use of a substitute. However, a central issue in this case was whether the substitution clause was indeed "genuine". 

BCAL instructs drivers via an app, and they generally have no choice over job location, number, or type, although they can decline jobs. However, the Tribunal found evidence of a practice of punishing drivers for refusing work on available days. BCAL sets the fees for each job, with no power of negotiation available to drivers, and drivers are obligated to pay weekly administration and insurance contributions. BCAL pays for and issues DVLA trade plates to drivers, which are essential for driving unregistered/untaxed vehicles for business, and the drivers cannot obtain these themselves. Drivers are provided with branded items in the form of a badge, a hi-vis vest, a phone with an app, a fuel card, inspection equipment, and PPE. Newly recruited drivers must undertake a mandatory four-day in-person training course and receive a detailed training manual, which is regularly updated.

The Tribunals both found that the substitution clause in BCAL's contracts was not "genuine". This case strongly reiterates that the written terms of a contract, particularly a substitution clause, are not conclusive when determining employment status, as tribunals will rigorously examine the true intentions of the parties and the reality of the working relationship. If a contractual right, such as substitution, is not genuinely intended to be exercised or is an "unrealistic possibility" in practice, it will be disregarded.

Companies cannot simply insert a substitution clause into their contracts and assume this guarantees self-employed status. Instead, the right to substitute must be genuine, practicable, and exercised. This ruling carries profound importance for companies that employ people remotely via apps, as merely inserting a clause to infer that such employment is truly flexible can be overturned if it isn’t exercised.

Pre-Budget tax planning – act now

With the next UK Budget approaching, there is speculation about changes to tax rates, allowances, and reliefs. Acting now can help secure current benefits before any new rules take effect.

Key areas to review:

  • Personal allowances – make sure you are using your Personal Allowance, savings allowance, dividend allowance, and Capital Gains Tax (CGT) exemption. Consider transferring assets between spouses or civil partners to maximise allowances.
  • Income or gains – if you expect changes to tax rates, you may benefit from bringing forward dividends, bonuses, or planned asset sales into the current tax year.
  • Pension contributions – pensions remain highly tax-efficient. Using your current year’s allowance now can lock in today’s tax relief rates.
  • Business investment – review any planned purchases of plant or equipment to take advantage of existing capital allowances.
  • Inheritance tax – making gifts now can start the seven-year clock and use current IHT exemptions.

The period before the Budget is a valuable opportunity for tax planning. Contact us as soon as possible to discuss your position and take advantage of existing rules before any changes are announced.

Building value in your business

For many small business owners, the focus is on day-to-day operations. However, building long-term value is just as important, whether your aim is to sell in the future, attract investors, or secure better financing.

Focus on profitability and cash flow
Strong profits are essential, but reliable cash flow is often more important to potential buyers or lenders. Keep tight control over expenses, reduce debtor days, and ensure pricing reflects the value you provide.

Develop recurring revenue
Income that is predictable and repeatable, such as subscription models or service contracts, increases business stability and value. It also makes forecasting more accurate and planning easier.

Strengthen your customer base
Avoid over-reliance on one or two major customers. A broad, loyal client base reduces risk and makes your business more attractive to others.

Build a strong management team
A business that depends too heavily on its owner can be harder to sell and less valuable. Train and empower staff so that the business can operate smoothly without you.

Protect your brand and processes
Invest in your reputation, intellectual property, and efficient systems. Documenting processes and having clear contracts with suppliers and customers adds professionalism and reduces uncertainty.

Plan ahead
Value is built over years, not months. Regularly review your strategy and financial performance and seek advice from your accountant to ensure every decision supports long-term growth.

HMRC to increase anti-money laundering fees

Fit and proper test fee to jump from £150 to £700 under HMRC’s proposed AML supervision changes

Many businesses are monitored by the Financial Conduct Authority (FCA) or certain professional bodies for Anti-Money Laundering (AML) purposes. However, HMRC is responsible for supervising more than 36,000 businesses in 9 business sectors. There are registration and annual fees that are charged for anti-money laundering supervision by HMRC. These fees have remained the same since May 2019, and HMRC is currently looking to increase the fees that they charge within the current fee structure to meet the costs of providing effective AML supervision.

HMRC plans to increase the premises fee from £300 to £400, representing a 33% increase since 2019. The reduced rate for small businesses will also increase from £180 to £200. Most affected businesses operate from a single premises.

The approvals fee, which ensures responsible individuals (BOOMs) are suitable for their roles, will remain unchanged at £40. However, the fit and proper (F&P) test fee, which applies to MSBs and TCSPs due to their higher risk profiles, will significantly rise from £150 to £700.

HMRC also plans to reintroduce an application fee of £400 for businesses newly registering or reapplying due to lapsed registration. Finally, the sanctions administration charge will be revised. While previously tied to the type of penalty, HMRC proposes a flat £2,000 charge for all types of sanctions, capped at the value of the penalty. A separate lower charge of £350 will still apply for specific regulatory failures.

These changes are open for comment until 29 August 2025, and it is expected that further information on when these new charges will be introduced will follow shortly afterwards.