The UK government offers few genuinely powerful tax incentives and relief schemes to support early-stage startups. These incentives reduce corporate tax and also attract investors. They free up cash flow, too.
But honestly, that only happens if you actually claim them the right way. That’s why understanding tax relief for startups matters so much in 2026/27.
This guide explains the main startup tax benefits UK tech businesses should know, including:
- How to apply for small business tax relief
- What are the benefits of R&D tax credits for startups
- How to claim EIS tax relief
- And much more…
Let’s break it down!
What Is Tax Relief for Startups?
Tax relief for startups is basically a bunch of government discounts. In simple terms, tax relief reduces the amount of tax you pay or gives you credits back.
As a result, this actually encourages innovation and investment in high-risk or early-stage companies.
Yes, it sounds a bit too good to be true. But it is legit. So, let’s look at the main tax reliefs available for your business.
What Tax Reliefs For Startups Are Actually Available In The UK?
There are several tax relief for startups available. And they are designed to help new businesses grow. For UK tech startups, the main reliefs include:
1. R&D Tax Credits
R&D Tax Credits are easily one of the best startup tax benefits UK offers. If you are wondering what are the benefits of R&D tax credits for startups, well, the main benefit of this relief is cash. Yes, at the exact stage when cash is most scarce. You do not even need to be making a profit to see the benefits, and you definitely do not need a patent. You just have to be genuinely building something technically uncertain. Also, make sure to document it properly.
Basically, this means you can claim this relief if you are building something where the solution is not obvious to a competent professional. That fact alone makes this one of the most valuable forms of tax relief for startups in the UK.
In 2024, the government combined the main R&D tax systems. They created a single default scheme for most businesses. However, they kept a separate and higher-paying scheme for loss-making small businesses. This special scheme is called ERIS.
R&D Tax Credits Eligibility in 2026/27
For your company to qualify:
- Must be a UK limited company subject to Corporation Tax. It should be trading as a going concern
- Must seek an advance in a field of science or technology by resolving a technical uncertainty
- The technical uncertainty must be complex enough that a competent professional cannot easily work it out
- Must provide clear proof of systematic testing, prototyping, or experimentation
How to Claim R&D Tax Relief
You claim through your Company Tax Return (CT600). Since April 2023, you also need to submit an Additional Information Form to HMRC before filing.
A strong claim includes a clear explanation of what problem you were trying to solve and why it was uncertain. It also includes what you tried and what you learned.
2. Seed Enterprise Investment Scheme (SEIS)
Seed Enterprise Investment Scheme is one of the strongest UK startup investment tax relief schemes out there. It is specifically designed for early-stage startups under 3 years old. Just keep in mind that this is not actually a relief your startup claims directly. It is actually your investors who claim it.
Under the current rules, your investors can get a massive 50% income tax relief. Yes, on the money they put into your business. On top of that, if your company goes on to do well, they pay exactly zero Capital Gains Tax on its profits. Hence, this relief provides critical tax relief for startups when they need it most.
SEIS Company Eligibility in 2026/27
For your company to qualify:
- Must have been trading for fewer than three years
- Fewer than 25 full-time equivalent employees
- Gross assets no more than £350,000 before the share issue
- Maximum raise of £250,000 under SEIS
Directors are also completely free to invest in their own company under SEIS. It is allowed as long as you do not hold more than 30% of the total shares.
How to Apply for SEIS
You need to apply to HMRC for advance assurance before your share issue. HMRC typically takes around 4 to 6 weeks to respond to these requests. After shares are finally issued, you file a compliance statement (SEIS1) with HMRC.
They then issue certificates to each investor. Investors then use them to claim their income tax relief through Self Assessment. The whole process from share issue to investor certificates usually takes around 14 weeks. Yes, it takes time. But it definitely provides a great tax relief for startups by keeping your investors happy.
3. Enterprise Investment Scheme (EIS)
The Enterprise Investment Scheme is the next step up for many startups. It works in a very similar way to SEIS. But it targets slightly more established companies instead. The UK startup investment tax relief rules for EIS allow investors to claim a 30% reduction on their income tax bill. This easily makes it one of the single biggest tax benefits for startups operating in the modern tech space.
From 6 April 2026, the government also expanded the EIS framework. It was expanded as part of a wider push to support startups and scale-ups. As a result, EIS has become considerably more attractive. And thus, this is another route to secure UK tax incentives for tech startups. The expansion ensures continuous tax relief for startups as they scale up.
EIS Company Eligibility in 2026/27
For your company to qualify for EIS, it must meet these criteria:
- Have under seven years of trading history
- Employ fewer than 250 full-time workers
- Hold gross assets under £30 million
- Raise to £10 million annually
Know that certain industries are excluded. But most genuine software and technology businesses can qualify if structured correctly. Ultimately, eligibility depends on your company structure, activities, and compliance with HMRC rules.
How to Claim EIS Tax Relief?
Investors usually claim through their Self Assessment tax return after receiving the EIS3 certificate from the startup. The company itself first needs HMRC approval. And founders often seek advance assurance from HMRC before fundraising.
Important: Most startups use SEIS for their first raise. They then move to EIS as they grow. Getting the order right means you can stack significant investor reliefs across multiple rounds.
4. Annual Investment Allowance (AIA)
The annual investment allowance is another important tax relief for startups. It allows UK companies to deduct 100% of qualifying equipment costs directly from taxable profits.
You can claim AIA on most plant and machinery. You can claim it up to the AIA amount. And the AIA amount is £1 million. It provides immediate tax relief for startups buying heavy kit and software.
However, startups must pro-rate this threshold if their first accounting period is shorter than twelve months. Also, remember that the company cars are excluded from the allowance. This means founders must look to specific vehicle capital allowances. Or alternative business structures for company cars.
5. Capital Allowances for Tech Companies
The capital allowances for tech companies are another important tax relief for startups. It is suited for startups which are handling heavy infrastructure costs. It allows businesses to deduct the cost of capital assets from their taxable profits.
Instead of writing off the full cost immediately, standard Capital Allowances spread the tax relief over several years. It is done by using standard Writing Down Allowances. This typically offers deduction rates of 6% or 18% per year.
6. Startup Tax Relief UK and the Patent Box
The patent box relief could be worth exploring if your tech startup has developed patentable technology, and it is starting to generate revenue from it.
The scheme lets you pay just 10% corporation tax (instead of the standard 25%) on profits that are derived from patented inventions. That is a 15 percentage point difference on qualifying income. This is definitely a massive tax relief for startups.
And it is not just for large companies. A single patented component in your software or product can potentially qualify, too. The patent must be granted by the UK Intellectual Property Office, the European Patent Office, or selected EEA patent offices.
Can You Stack These Reliefs?
Yes. You absolutely can mix and match these in most cases. SEIS or EIS from investors, R&D credits from the company, and Patent Box on profits can all be used together. They operate completely independently. This is because they cover totally different things.
The main restriction is that you cannot issue SEIS and EIS shares on the very same day. Yes, you must issue SEIS shares first. Then you can issue the EIS shares at least one day later as the business grows.
R&D credits and Patent Box can often both be claimed. Though the calculations interact. This is exactly the kind of thing a specialist accountant can help you manage.
What Is Startup Relief for Entrepreneurs?
This usually refers to Business Asset Disposal Relief. Earlier, it used to be called Entrepreneurs’ Relief. When you eventually sell your startup in the 2026/27 tax year, you will pay an 18% Capital Gains Tax rate on qualifying gains. Yes, instead of the standard higher rate of 24%.
You should know that there is a strict lifetime cap of £1 million on these gains. Still, it is a massive benefit for founders who build and sell companies. But remember that the rules are tight. To get startup relief for entrepreneurs, you need to hold at least 5% of the shares and voting rights. Plus, you must be an employee or director for a full two years before you sell.
How to Apply for Small Business Tax Relief?
Honestly, there is no single application route. This is because different relief schemes work in totally different ways. Some tax relief for small businesses UK is claimed in the company tax return. Some involve HMRC forms or payroll processes. Or investor certificates.
So your first step should be simply figuring out which relief actually fits your setup. After you have figured this out, check the filing deadline and supporting records. This is to ensure that the claim goes through smoothly.
How Much Is EIS Tax Relief?
EIS gives investors 30% income tax relief on the money they invest. Up to £1 million per year (or £2 million for knowledge-intensive companies). So if someone puts £100,000 into your EIS-ready startup, they cut £30,000 off their income tax bill for that year. That’s huge!
Also, they will not pay any Capital Gains Tax on the profit if they sell the shares after three years.
The Bottom Line
There is no complete automatic tax exemption for startups simply because they are new businesses. However, the government offers several valuable tax relief for startups designed to support early-stage startups.
R&D credits, EIS, SEIS, capital allowances, and other incentives can definitely improve cash flow. They also support growth when claimed correctly.
The key is knowing what’s available and also claiming it properly!
How Accotax Can Help
If you need help with tax relief for startups or any accounting service, such as bookkeeping, VAT, or year-end accounts, visit Accotax.
We offer a range of packages designed to fit your unique needs.
Reach out, get an instant quote, and let us help you stay compliant!
Disclaimer: The information about “Tax Relief for Startups in the UK: What You Can Claim in 2026/27” is provided in this article including text and graphics. It does not intend to disregard any of the professional advice.
