Home Renovations Contractors: Your Guide to Creative Projects

VAT can change a renovation budget by tens of thousands of pounds, yet it is often one of the least understood parts of a UK refurbishment. Homeowners regularly receive quotations that look very different simply because one price includes VAT and another does not. Others assume all renovation work is charged at 20%, or believe that buying an empty property automatically qualifies the entire project for 5% VAT. Neither assumption is safe.

For most work carried out to an existing house or flat, a VAT-registered builder charges the standard rate of 20%. However, UK VAT rules include important exceptions. Certain qualifying renovation and alteration works to residential premises that have not been lived in for at least two years can be charged at the reduced rate of 5%. Some qualifying conversions can also attract the reduced rate, while some new-build work can be zero-rated. Different rules can apply to specific energy-saving materials and certain adaptations.

The complication is that VAT liability depends on the building, the type of work, the contractor’s supply and sometimes the timing of occupation. It is not enough to say “this is a renovation” and apply one percentage to everything. This guide explains the practical rules homeowners need to understand when preparing a 2026 renovation budget. It is general information rather than tax advice, so complex projects should be checked with HMRC guidance or an appropriately qualified tax professional.

Before comparing contractor quotes, use The Dryden’s House Renovation Cost Calculator to build your base estimate, then add VAT correctly rather than assuming it is already included.

Quick answer: when is renovation VAT 20%, 5% or 0%?

The table is deliberately described as “typical” rather than absolute. VAT Notice 708 contains detailed definitions, exclusions and special cases. If the tax treatment is material to whether your project is affordable, confirm it before signing contracts.

The default position: most renovation work is charged at 20%

HMRC’s basic position is straightforward: most work carried out to existing houses and flats by builders and similar trades is standard-rated. That means a VAT-registered builder, electrician, plumber, plasterer or carpenter will usually charge 20% VAT on their taxable supply.

This is the figure to use in an ordinary renovation budget unless you have identified a specific relief. If a contractor quotes £50,000 plus VAT, the cash cost at the standard rate is £60,000. If the quotation says £50,000 including VAT, you should not add another 20%. Always establish whether the figure is VAT-inclusive or VAT-exclusive.

This sounds obvious, but it is one of the most common budgeting errors. Online cost guides may quote figures excluding VAT, while consumer-facing contractor pages may include it. Two rates that look £20,000 apart can become much closer once you compare them on the same basis.

How the 5% VAT rate works for empty residential property

A major reduced-rate rule applies to qualifying renovation or alteration of certain residential premises that have not been lived in for at least two years immediately before the work starts. HMRC guidance refers to qualifying dwellings, premises used solely for a relevant residential purpose and some multiple-occupancy residential premises.

The key phrase is not lived in for at least two years. An unfurnished house is not necessarily an empty house for VAT purposes. A property being marketed for sale does not automatically qualify. A building used only occasionally may require closer analysis. You need evidence that the occupation conditions are satisfied.

Where the rule applies, qualifying services supplied in the course of renovation or alteration can be charged at 5%. This can make a large difference. A £100,000 qualifying supply would cost £105,000 including 5% VAT rather than £120,000 at 20%.

What counts as evidence that a property was empty?

Contractors may reasonably want evidence before charging the reduced rate because they are responsible for applying the correct VAT treatment to their supply. Useful evidence can include council tax records, electoral roll information, utility records, correspondence from the local authority, previous owner information or other documents showing that no one lived at the property.

Do not wait until the final invoice to raise the issue. Discuss the VAT basis when tendering the work. If a contractor prices at 20% and later decides the project qualifies for 5%, the contract and invoices may need adjustment. Conversely, if you build your whole financial plan around 5% without establishing eligibility, an HMRC challenge or cautious contractor can leave you with a serious funding gap.

Does the whole project qualify for 5%?

Not necessarily. The reduced rate applies to qualifying supplies, and VAT Notice 708 contains rules about the services and goods that can be included. Items that are not treated as building materials, or supplies outside the qualifying renovation service, can remain standard-rated.

For example, some fitted items may be treated differently from basic building materials. Professional services are generally separate. Furniture and many movable items are not transformed into reduced-rate building work simply because they are purchased during a qualifying renovation.

This is why it is dangerous to take your total project budget—including architect, furniture, appliances, storage and accommodation—and simply multiply everything by 1.05.

The two-year rule and the start of work

The timing of the contractor’s work matters. HMRC’s internal guidance makes clear that individual contractors may need to consider when their own work starts and whether the empty-home conditions are met at that point. A project with several contractors can therefore create more complexity than a single design-and-build contract.

Occupation during the works can also matter under the detailed rules. Do not assume that because the first contractor qualified, every later trade automatically has the same VAT treatment. If the property is occupied partway through the project, specialist advice may be sensible.

What if the house has been empty for less than two years?

In a straightforward refurbishment, the 5% empty-home relief will generally not be available solely because the property is vacant now. If the building was lived in 12 months ago, you cannot normally turn that into a two-year empty property by leaving it unoccupied for a few weeks after purchase.

Other VAT rules might still apply if the work involves a qualifying conversion or a specific relief, but the normal empty-home reduced rate should not be assumed.

Residential conversions and the 5% rate

Certain conversions can qualify for reduced-rate VAT. A common example is converting a non-residential building into dwellings, or changing the number of single household dwellings in a building. The exact test is more technical than “turning an old building into a home,” and the before-and-after use matters.

Examples can include converting commercial premises to flats or subdividing/combining residential units where the statutory conditions are met. Because conversion projects often contain structural work, new services and planning conditions, the VAT saving can be substantial.

However, do not confuse a layout change inside one existing home with a qualifying conversion. Removing a kitchen wall or creating an extra bedroom is normally still renovation of the same dwelling, not necessarily a conversion for VAT purposes.

New builds and the 0% rate

Some qualifying construction of new dwellings can be zero-rated. This is a different VAT category from renovation. The fact that you strip an old house back to its shell does not automatically turn the project into a new build. HMRC uses detailed tests concerning whether a new building is being constructed and what remains of any previous building.

This distinction can become particularly important in demolition-and-rebuild projects. Before relying on zero-rating, obtain project-specific advice. A mistaken assumption at the planning stage can alter the budget materially.

What about listed buildings?

Historic VAT reliefs for approved alterations to listed buildings have changed over time. Homeowners sometimes encounter outdated forum posts claiming that listed-building alterations are automatically zero-rated. That is not a safe assumption under current rules.

Listed and heritage projects may actually be more expensive because specialist materials, conservation requirements and skilled labour are involved. If you are renovating an older property, read our Renovating an Old House guide and budget tax separately from heritage-related construction risk.

Energy-saving materials: do they still get VAT relief?

Current UK rules can provide favourable VAT treatment for the installation of certain energy-saving materials in residential accommodation. Eligible categories and conditions can change, so check current HMRC guidance for the specific product and installation.

Potentially relevant measures may include certain insulation, solar panels, heat pumps and other qualifying technologies. The tax treatment of a complete renovation contract can be more complicated when eligible energy-saving work is bundled with standard-rated work.

Ask the installer to explain the VAT treatment on the quotation rather than assuming every “green” product is zero-rated.

Do architects charge 20% VAT?

Architects, designers, surveyors, structural engineers and other consultants who are VAT registered will usually charge VAT at the standard rate on their professional services. Their fee does not automatically become 5% simply because the building work qualifies for the reduced rate.

This is important on larger projects where professional fees may represent 8–15% or more of the construction budget. A £15,000 professional-fee allowance plus VAT becomes £18,000 if standard-rated.

What about planning and building-control fees?

Statutory fees need separate treatment from professional services. Some local-authority charges fall outside VAT in ways that differ from a private consultant’s taxable fee. Your cost plan should list planning, building control, party-wall matters and professional services as separate lines rather than applying one VAT percentage across them all.

Materials you buy yourself versus materials supplied by the builder

The VAT result can differ depending on who supplies the materials and whether they are supplied as part of qualifying construction services. If you walk into a retailer and buy materials yourself, you will generally pay the VAT charged by that retailer. You cannot automatically reclaim the difference simply because your contractor’s qualifying service would have been reduced-rated.

In some cases, a contractor supplying and installing qualifying building materials can apply the same reduced rate to those materials as part of the eligible service. The details matter, so discuss procurement strategy before making large purchases.

Can a homeowner reclaim VAT on renovation costs?

Most private homeowners cannot simply reclaim VAT on ordinary renovation expenditure. VAT recovery is generally associated with VAT-registered businesses making taxable supplies or with specific refund schemes, such as certain self-build arrangements. Buying an existing house and renovating it for your own occupation does not normally create a general right to claim back VAT.

If you are developing property through a business, converting property for sale or rent, or undertaking a qualifying self-build, specialist VAT advice becomes much more important because the recovery position can depend on the intended supply.

How VAT changes a renovation budget

This is why VAT should not be treated as a small administrative detail. On a £150,000 qualifying renovation, the difference between 5% and 20% is £22,500.

Worked example: ordinary occupied-home renovation

Imagine a homeowner refurbishing a 90m² semi-detached house that has been continuously occupied. The builder’s net quotation is £80,000. The project includes rewiring, a new kitchen, bathroom, plastering and decoration.

Assuming the normal standard rate applies, the construction invoice becomes £96,000 including 20% VAT. The architect quotes £6,000 plus VAT, becoming £7,200. Furniture is £8,000 including retail VAT. The homeowner also holds a £12,000 construction contingency.

The important lesson is that the £80,000 builder’s figure is not the whole project budget. Tax, consultants, furnishings and contingency must be visible before work starts.

Worked example: qualifying two-year empty property

Now imagine a house that can be evidenced as not having been lived in for more than two years before qualifying renovation work starts. The builder’s qualifying net work is again £80,000. If the 5% rate applies to that supply, the invoice becomes £84,000 rather than £96,000.

The £12,000 saving is significant, but it does not mean the architect’s fees, loose furniture and every project expense also become 5%. Each line must be considered on its own tax basis.

How VAT interacts with a renovation contingency

Your contingency should reflect the VAT treatment of the work it is likely to fund. If the base construction contract is £100,000 plus 20% VAT and you hold a 15% contingency against the net construction work, that is £15,000 net. If those unexpected works are standard-rated, their cash cost could become £18,000.

A common mistake is to calculate a contingency on a net budget but forget that the variation invoices also carry VAT. Our guide How Much Contingency Should You Add to a Renovation Budget? explains how to structure the risk allowance.

Should your renovation budget be net or gross of VAT?

For a private homeowner, the safest headline budget is usually the gross cash cost—the amount actually leaving your bank account. You can keep a net/VAT split underneath for transparency, but do not manage the project around net figures if you cannot recover the tax.

For example, a cost plan might show:

How to compare builder quotes with different VAT wording

Ask every contractor to show the same information: net price, VAT rate, VAT amount and gross total. If reduced rating is proposed, ask the contractor to identify the basis. If a builder is not VAT registered, their quote may not show VAT, but that does not automatically make them cheaper once scope, insurance, capacity and materials are compared.

Be wary of quotes that simply say “VAT TBC.” That can be reasonable at an early stage, but it should be resolved before the contract sum is treated as fixed.

Can a non-VAT-registered builder save you 20%?

A small contractor below the VAT registration threshold may not charge VAT on their own labour/supply in the same way as a VAT-registered business. However, they still incur VAT on many materials and overheads, and their commercial pricing reflects those costs. You should not assume the entire quote will be 20% lower.

Choose contractors based on competence, scope, references, insurance, programme and total value—not tax registration alone.

Common VAT mistakes on renovations

1. Assuming all renovation VAT is 20%

Most is, but qualifying empty-home and conversion rules can materially reduce the rate.

2. Assuming an empty house automatically qualifies for 5%

The two-year occupation condition and detailed eligibility rules matter.

3. Applying 5% to professional fees

Architects and consultants generally remain standard-rated if VAT registered.

4. Buying all materials yourself without checking the tax effect

Retail purchases may not receive the same treatment as qualifying supply-and-install services.

5. Comparing one quote including VAT with another excluding it

Always compare gross totals on identical scope.

6. Using contingency before VAT

Unexpected work can carry VAT too.

7. Relying on old listed-building advice

VAT rules change. Use current HMRC guidance.

Questions to ask your builder before signing

1. Is your quotation inclusive or exclusive of VAT?
2. What VAT rate have you applied to each part of the work?
3. If you are using 5%, what qualifying rule are you relying on?
4. What evidence do you need from me?
5. Are all supplied materials treated at the same rate?
6. Are any items excluded or standard-rated separately?
7. How will VAT be shown on variations?
8. If occupation changes during the project, could the VAT treatment change?

How VAT fits into your overall renovation budget

Start with scope, estimate the net construction cost, identify the correct VAT treatment for each package, then add professional fees, statutory fees, contingency, accommodation, storage, finance costs, furniture and landscaping. Do not bury tax in a vague “extras” line.

Our House Renovation Budget Checklist gives you a full list of cost headings, while Renovation Cost Per Square Metre UK 2026 provides current benchmarking ranges.

Frequently asked questions

Is VAT always 20% on home renovations?

No. Twenty percent is the normal rate for most renovation of existing occupied homes, but qualifying empty residential properties and certain conversions can attract 5%, while some other construction categories have different treatment.

When can I pay 5% VAT on a renovation?

A common case is qualifying renovation or alteration of residential premises that have not been lived in for at least two years before the relevant work starts. Detailed conditions apply.

Does a derelict house automatically qualify for 5%?

No. You need to consider HMRC’s occupation and property conditions. Evidence of the period of non-occupation is important.

Can my architect charge 5% if the builder does?

Usually not. Professional services generally remain standard-rated where the professional is VAT registered.

Can I reclaim VAT on renovation materials?

Most private homeowners cannot reclaim VAT on ordinary renovation costs. Specific business or self-build circumstances can differ.

Does 5% VAT apply to kitchens and bathrooms?

It can apply to qualifying supply-and-install work within an eligible reduced-rate renovation, but individual goods and non-building items can have different treatment. Check the contractor’s tax treatment rather than assuming.

What if the builder charges the wrong rate?

The contractor is responsible for invoicing correctly, but the homeowner should raise concerns promptly. Complex disputes should be checked against HMRC guidance or professional advice.

Final takeaway

For most UK homeowners renovating an occupied existing property, 20% VAT is the sensible starting assumption. The biggest exception is qualifying renovation or alteration of residential property that has been empty for at least two years, where a 5% rate can apply to eligible supplies. Conversions, new builds and certain energy-saving measures have their own rules.

Do not choose a VAT rate because it makes the project affordable. Establish eligibility first, make contractors show VAT clearly, and manage your budget using gross cash costs. Once you know the correct tax basis, use the House Renovation Cost Calculator to model the whole project alongside contingency and fees.

This article is general information, not tax advice. VAT rules are detailed and can change. Check current HMRC guidance and obtain professional advice for complex or high-value projects.