About
One firm. One subject. The VAT rate on building work.
Keystone Tax Consultants works out which rate of VAT applies to a building project, 20%, 5% or 0%, and gives you the paperwork to prove it. We do nothing else. We work with clients across Kent, London and the South East, and nationally by email and phone.
Who you are dealing with
Specialists in one thing, the VAT on building work.
Keystone Tax Consultants works on one subject: the VAT treatment of building projects. We advise developers, contractors, homeowners and the professionals who work alongside them, on everything from a single barn conversion to schemes where the VAT at stake runs into the millions.
Whatever the size of the job, you get the same thing: a clear answer on the right rate, the reasons for it in writing, and a straight answer when the correct rate is 20%.
Project record
Multi-million-pound projects. High-profile clients. Specialist expertise.
- 01
Projects with VAT in seven figures
Experience of multi-million-pound construction projects where the VAT liability alone ran to seven figures, and one wrong rate would have been felt across the whole budget.
- 02
High-profile and celebrity clients
Work for clients in the public eye, where discretion matters as much as the answer. We never name a client or a project.
- 03
Construction VAT as the sole specialism
No bookkeeping, no accounts and no returns. We work only on the VAT treatment of building projects.
We never name a client or a project. That applies to yours too.
What to expect
What you can hold us to.
- 1
A straight answer
Plenty of building work is correctly charged at 20%. If yours is, we will tell you plainly.
- 2
Advice you can rely on
Our conclusions are set out in writing and supported by the law and HMRC's published guidance, so you, your builder and your advisers can stand behind them.
- 3
A fixed fee, agreed first
You know the cost before any work begins. If the scope changes, we tell you before doing anything further.
- 4
Complete discretion
We never name a client or a project, and your details stay private.
Why a firm that only does construction VAT
VAT on building work has its own legislation, its own HMRC notice and a long list of exceptions. Rules like these are easy to miss for anyone who only meets them a few times a year.
So we do one thing. We do not keep books, prepare accounts or submit returns. Every project we take on is a building project, and the question is always which rate applies, and why.
To begin, send us your builder's quote. Our services page explains each level of work.
Next step
Send us the quote. We’ll tell you whether there’s anything to save.
Upload your builder’s quote or tender. We look at the project and the pricing and tell you whether a lower rate is worth pursuing, before you commit to anything.
- Fixed fee, agreed up front
- Every rate tied to the legislation
- We'll tell you if it's 20%