Detailed UK R&D Tax Calculator

UNITED KINGDOM · EXPLORE YOUR R&D POTENTIAL

Could the work you are already doing be worth more?

Developing a product, improving a process or solving a difficult technical problem? You do not need to call it “R&D”. Start with the work and a few ballpark figures—we will handle the tax workings.

Around 5 minutes
No tax knowledge needed
A briefing to share with your team

A little about your business.

This is a first look at the opportunity, not a tax return. Rough figures are fine, and “not sure” is a useful answer.

Is the business a limited company?

This relief is for companies within Corporation Tax, the company tax system, even if they currently make a loss. A sole trader or ordinary partnership does not claim this company relief.

Which year would you like to explore?

Choose a year to get started. If your accounts run April to March, for example, choose your exact dates. Rates and deadlines depend on the period.

Find your company automatically (optional)

Company name or number

We use the public Companies House register to fill in your business details. You can type them below instead.

Who is this calculation for?

Enter your name, email and company to receive your estimate and briefing. Your details and calculation will be saved. You can choose to book a consultation after seeing your results.

First name *

Last name *

Email address *

Company name *

Telephone (optional)

Job role (optional)

Company number (optional)

You can leave this blank. It helps us identify the right business.

What went into the work?

Use the costs you know, then estimate the share used on this work. If a figure already covers only the project, leave its share at 100%. Leave anything that does not apply blank. Count each cost once and leave out VAT you can recover.

People on your payroll

Salaries, employer National Insurance and employer pension contributions for time spent on this work. Do not include dividends.

Amount spent (£)

Share used on this work (%)

Materials, prototypes & testing supplies

Materials used up in trials, prototypes that were not sold, and the work’s share of electricity, fuel and water. Do not include equipment purchases or materials in products sold to customers.

Amount spent (£)

Share used on this work (%)

Software & computing

Software licences and computing used on the development work. For example, design software, simulation tools or development servers—not general office use.

Amount spent (£)

Share used on this work (%)

Outside specialists & subcontractors

Independent UK specialists paid to carry out development work for you. Do not include routine subcontracted delivery. Enter the amount before tax-rule restrictions; we apply those for you.

Amount spent (£)

Share used on this work (%)

A couple of other costs that may apply

Agency workers

Workers supplied by an independent agency who worked under your team’s direction on UK development activity. This is different from paying a contractor to deliver its own project.

Amount spent (£)

Share used on this work (%)

Clinical-trial volunteers

Payments to people taking part in a clinical trial. This is usually relevant to medical or pharmaceutical development, not ordinary product-user testing.

Amount spent (£)

Share used on this work (%)

One last thing about the business.

Was the business making a profit in that year?

Profit is what is left after business costs—not turnover or the money in the bank. A loss does not automatically rule out support. You do not need to know your tax rate or choose a tax scheme.

If you leave the figure blank, we will show a clearly labelled example rather than pretend to know your tax position. If you made a loss, our team can also check whether enhanced support is available.

Anything about the work that may need a specialist review?

For example, development carried out overseas, suppliers owned by the same people as your business, costs already claimed elsewhere, or another company paying you to develop something. These can change the answer.

Yes — one of these applies. A specialist review may be needed.

I agree that InnoFund may save and process my details and calculation to provide my estimate and briefing. This does not book a consultation or subscribe me to marketing.

Required to receive your estimate. How we use your information.

* Required details. This is an indicative exploration tool, not tax advice or confirmation that you can claim. Your details are saved before your results are shown.

01 A little about you

First name

Last name

Telephone number

Company

Job role

02Choose your date

Times shown in UK local time. Monday–Friday, 09:00–17:00.

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Bookings close two hours before the start time. All consultations last 30 minutes.

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* Required fields. BD will confirm your consultant and joining details.

Explore your UK R&D opportunity.

Could the work you are already doing be worth more?

Who is this calculation for?

One last thing about the business.

Discuss your R&D calculation.

01 A little about you

02Choose your date

Thank you for your submission.

Explore your UK R&D opportunity.

Who is this calculation for?

One last thing about the business.

01 A little about you

02Choose your date

Thank you for your submission.

Your choice. Your experience.