Commercial office buildings

Unlock the hidden value in your Commercial Property

Capital allowances calculator

How much could your Capital Allowance Claim could be?

Your results

Estimated allowances:


Cash benefit:


Please note: these figures are estimates and rates can change depending on your circumstances.
A room filled with lots of furniture


Capital Allowances are a form of tax relief given on eligible items of ‘plant and machinery’ used to decrease your taxable profits – meaning you pay tax on a smaller figure, reducing your tax bill. In a Commercial Office Building, these could be heating, water and air conditioning systems, elevators, CCTV, fire alarm and suppression systems, as well as many other fixtures that are attached to the building structure. Capital Allowances are often overlooked yet can yield remarkable tax savings. These can be claimed on a myriad of systems integral to the functioning of an office.


STax, we are the Capital Allowance Experts. Our expertise lies in extracting maximum Capital Allowance value from all forms of office space. Our client portfolio boasts a dynamic range of commercial offices from the humble 1,000 square foot offices above a retail unit to towering 30-storey skyscrapers. Over the past decade, we have helped our clients claim over £500m in unclaimed and largely unknown Capital Allowances.

In the last year, STax have won a number of awards recognising our work and expertise in helping our clients make a Capital Allowance Claim.

Two photographs overlapping each other with a room with glass doors and a lamp at the top, and the bottom image consisting of a room with chairs and a table.


STax are a fusion of Property Tax Experts, Accountants and Surveyors. We work with you to uncover potential capital allowances that have been left unclaimed in your commercial property. Our team are able to provide you with the information you need to make a Capital Allowance Claim.

Engaging STax couldn’t be easier. All you need to do is get in touch and we’ll take it from there. If we find that there are no potential Capital Allowance Claims in your office building then we won’t charge you a fee – meaning you have nothing to lose.

Our 4 step process


STax was introduced to me by my Accountant, and they couldn’t have been more helpful in explaining the process and assembling my claim. The total claimed was over £250k, a sum I wasn’t even aware was available to me. I highly recommend their services.

S King, Commercial Property Owner

STax simplified a highly complex area of tax for us and generated substantial savings. I was so impressed with the outcome of the survey that I’ve since introduced the firm to several of my business partners and investors.

David Hartley, Commercial Property Owner


Call us

Give our team a call and with just a few details they can carry out a free desktop review to give you an indication of any possible Capital Allowance Claim.
0207 147 9940

Email us

Do you have a question about Capital Allowances? Send us an email and a member of the STax team will get back to you.