VAT on Building Work

Contact Malachy McLernon

or reach out to a member of our Corporate Tax team.

Navigating the complexities of VAT charges on building work can be a daunting task for many homeowners and developers. Understanding when you can benefit from a reduced VAT rate of 5% instead of the standard 20% is crucial for budgeting and planning your construction or renovation projects.

In this article, we’ll delve into the circumstances under which building work can qualify for the reduced VAT rate, providing clarity and guidance on a topic that often leads to confusion. Whether you’re undertaking a significant renovation, converting properties, or involved in new builds, knowing the ins and outs of VAT regulations can lead to significant savings and ensure your project complies with UK tax laws.

When do you need a certificate for 5% VAT on building work?

VAT for most work on houses and flats by builders and similar trades like plumbers, plasterers, and carpenters are charged at the standard rate of 20% – but there are some exceptions.

Building work can be charged at 5% in the following circumstances:

  1. Renovating residential property that has been empty for more than 2 years
  2. Where the number of dwellings is being increased such as converting a house into flats
  3. Converting a commercial building into residential
  4. Converting a house into an HMO

There is a VAT notice which has the exact details and whether or not the 5% rate can be used is a matter of fact, not opinion. HMRC will not give specific clearance, they will refer you to the rules and ask you to check the rules with your builder for your project. The property owner doesn’t issue a certificate (as would be needed for Zero Rating), it is for the builder/developer to determine whether and on what the 5% VAT rate can be applied.

The only exceptions (when a reduced rate certificate would be needed) are

  • a home or other institution providing residential accommodation for children;
  • a home or other institution providing residential accommodation with personal care for persons in need of personal care by reason of old age, disablement, past or present dependence on alcohol or drugs, or past or present mental disorder;
  • a hospice;
  • residential accommodation for students or school pupils;
  • residential accommodation for members of any of the armed forces;
  • a monastery, nunnery, or similar establishment;
  • an institution that is the sole or main residence of at least 90 percent of its residents and will not be used as a hospital, prison, or similar institution or a hotel, inn, or similar establishment.

The builder may not have to charge VAT on some types of work if it meets certain conditions, including building a new house or flat or carrying out building and related work for disabled people in their home.

For work on a new house or flat to be zero-rated for VAT, it must qualify as a genuinely new, self-contained house or flat. This means:

  • It’s self-contained – there aren’t any internal doors or connections to other houses or flats
  • It can be used independently of any other property, including businesses
  • It can be sold on its own
  • It has proper planning permission
  • Any existing buildings on the site have been demolished completely to ground level (unless you’re extending an existing building to create a new house or flat)

There may also be situations where you may not have to be charged VAT on alterations made to a disabled person’s home, or certain equipment supplied for their personal use. To be zero-rated for VAT, the work being done needs to be for someone with a:

  • Physical or mental impairment that has a major long-term effect on their ability to do everyday activities
  • A condition that the medical profession treats as a chronic sickness (eg diabetes)
  • Terminal illness

Someone who’s temporarily disabled or incapacitated, or elderly and frail but not disabled, doesn’t qualify.

Whether you are breathing new life into a long-vacant property, adapting a structure for new uses, or accommodating individuals with special needs, it’s crucial to ascertain the eligibility for the reduced rate and comply with the relevant VAT Notice guidelines. As this is a complex area of tax law, it is advisable to consult with your builder and, if necessary, seek further clarification from a tax professional to ensure you are applying the rules correctly and reaping the available benefits. This careful attention to detail in your VAT considerations can not only prevent costly mistakes but also contribute positively to the success of your building endeavours. If you require personalised advice or further assistance regarding VAT on building work, I encourage you to reach out to a member of our Tax Team or Malachy McLernon.

How AAB can help

Corporate Tax

AAB’s Corporate Tax service supports businesses at every stage by minimising liabilities and simplifying complex tax rules - so you can focus on growth. Their team offers clear, practical advice on extracting profits, group structuring, capital allowances, loss utilisation, and managing capital gains, tailored to suit both day-to-day needs and long‑term ambitions. They’re champions for owner‑managed businesses. AAB advises on the right business structure - sole trader, company, LLP - while creating tax‑efficient strategies for profit withdrawal, succession, and exits. If you’re expanding overseas, AAB's international tax experts guide you through cross‑border structuring. They’ll help you understand global corporation tax regimes, CFC rules, tax residence, withholding taxes, double tax relief, and foreign compliance. In short, AAB cuts through tax confusion. They offer proactive planning and hands‑on support to help reduce your tax bill, streamline compliance, and support your goals at home and abroad - all delivered in a friendly, human-first way.

View our corporate tax service

How AAB can help

VAT & Customs

VAT is increasingly complex and impacts all aspects of your business. We can provide VAT advice to unravel complexity, help ensure compliance and make sure you pay no more VAT, Customs Duty, Excise Duties and various environmental taxes than necessary. Our team’s specialist skills have been acquired through supporting numerous clients, and working in HMRC and private industry. We provide comprehensive VAT advice and indirect tax services and, whether it’s compliance matters or complex restructuring, we’ll support you with practical, tailored solutions.

View our VAT & customs service

Related services

Sign up for the latest industry insights

  1. Blog25th Mar 2025

    What Do Northern Ireland businesses want in the Spring Statement?

    With Chancellor Rachel Reeves set to deliver the Spring Statement tomorrow (26th March), business owners across Northern Ireland (NI) will be watching closely. The October 2024 Autumn Budget brought significant changes—some beneficial, others burdensome—particularly for small and medium businesses trying…

    By Malachy McLernon

    View more
  2. Blog29th Feb 2024

    Spring Budget 2024 Countdown

    Set against a backdrop of intense speculation, political manoeuvring and proximity to a potential general election, Chancellor Jeremy Hunt may need to announce bold measures in the forthcoming Spring Budget, says MALACHY McLERNON, Partner and Head of Corporate and Indirect…

    By Malachy McLernon

    View more
  3. Blog27th Sep 2023

    Are you Ready for the Upcoming Tax System Changes like Basis Reform?

    With several significant tax system changes on the way like the basis reform, now is the time to check how these will affect your business.   Are You Ready for the Basis Period Reform? The basis period is the accounting…

    By Malachy McLernon

    View more
  4. Blog25th Jul 2023

    Capital Gains Tax On Property: 60-Day Reporting and Payment Requirements On Residential Disposals

    Understanding capital gains tax on property is essential when you are buying or selling properties. By familiarising yourself with the applicable rates, exemptions, and strategies to minimise tax liability, you can make informed decisions that can potentially save you money.…

    By Malachy McLernon

    View more