Growth & Advisory

R&D tax credits

R&D claims for software, SaaS and product teams, scoped, costed and documented to survive HMRC scrutiny.

Regulated and qualified through ICAEW, ACCA and AAT memberships held across our team

What this means for your company

R&D claims for software, SaaS and product teams, scoped, costed and documented to survive HMRC scrutiny. We work with technology, SaaS, e-commerce, marketplace and online businesses trading as UK limited companies, from first-year micro-entities in Croydon and Morden to funded teams in central London, with a fixed scope and fee agreed before anything starts.

01

Technical qualification review with your engineers

02

Qualifying cost analysis across staff, subcontractors and cloud

03

Written technical narrative in HMRC's expected format

04

Claim notification, additional information form and CT600L filing

What the service covers

R&D claims for software, SaaS and product teams, scoped, costed and documented to survive HMRC scrutiny.

• Technical qualification review with your engineers

• Qualifying cost analysis across staff, subcontractors and cloud

• Written technical narrative in HMRC's expected format

• Claim notification, additional information form and CT600L filing

The rules that shape this work

For accounting periods beginning on or after 1 April 2024 most companies claim under the merged R&D expenditure credit scheme, with a separate, more generous route for R&D-intensive loss-making SMEs. Data licence and cloud computing costs now qualify where they are used directly in the R&D.

Process has become as important as substance. HMRC requires an additional information form before the return, and many companies must submit a claim notification within six months of the period end or lose the claim entirely. Compliance checks are common, so the technical narrative must explain the scientific or technological uncertainty in real terms.

Thresholds, rates and deadlines quoted here reflect the 2026/27 UK position. Check current GOV.UK guidance, or ask us, before you rely on them for your own company.

How we run it

We start by looking at the last filed accounts, your current records and your filing dates, then confirm a fixed scope and fee in writing.

Once the work is live you get reminders ahead of each deadline, a named person to ask questions, and a plain-English summary when the figures are ready, not a PDF with no explanation.

Google reviews

What Our Clients Say

Rated 4.9 out of 5From 302 Google reviews
Accotax have been our accountants for many years now. We maintained them because of their professionalism. In the last couple of years I have been working with Imran, who has been very professional and helpful in guiding us through the whole process, explaining and clarifying every aspect of it. Very prompt in responding to questions and patient with us even when we seem to be slow.
Mansur Liman · Long-standing company client
We worked with a few different accountants before finally settling with Accotax, and we're really glad we did. They take the time to understand how our business works and what our needs are. Anum, who looks after our account on a day-to-day basis, including reconciling invoices and preparing the annual accounts, is amazing, professional, efficient, and follows the processes we have put in place together. Accotax has made our accounting experience much smoother and easier. We see them as a long-term partner as our business continues to grow. I would 100% recommend them.
Mael Leboucher · Year end accounts & bookkeeping
I've been working with Accotax since January 2024, and their support has grown alongside my business needs. My personal allocated manager, Umer, provides tailored services for both of my companies, adapting as I expand and ensuring everything runs smoothly. They are responsive, knowledgeable, and always clear in their communication. Their help with accounts, VAT, payrolls, pensions and compliance gives me real confidence and peace of mind.
Зайтуна «Анонимная татарка» Manning · Two limited companies, VAT, payroll & pensions
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Frequently asked

R&D tax credits: questions directors ask

Does building a SaaS platform count as R&D?

Configuring existing tools does not. Resolving genuine technical uncertainty, performance at scale, novel data processing, integrating systems in ways a competent professional could not readily deduce, can qualify. We test the work honestly before claiming.

How long does a claim take to pay out?

HMRC aims to process most claims within 40 days of a valid submission, though compliance checks extend that. We never build a cash-flow forecast that assumes the money arrives early.

What records are needed for r&d tax credits?

Keep bank statements, sales and platform reports, purchase invoices, payroll records, VAT workings, finance agreements and Companies House correspondence. We confirm the exact list at onboarding and identify gaps before a filing deadline becomes urgent.

How much does help with r&d tax credits cost?

The fee depends on transaction volume, record quality, VAT and payroll requirements, historic catch-up and the level of reporting needed. We agree a fixed scope and price before technical work starts, with published packages available on our fees page.

Can you take over r&d tax credits from another accountant?

Yes. We request professional clearance, collect the prior records and authorities, check the next Companies House and HMRC deadlines, and give you one clear handover list. The process is normally completed remotely.

Can r&d tax credits be handled online?

Yes. We work through secure cloud records, scheduled reviews and digital approvals, while keeping a named team available by phone, video call and email. Clients can also visit our Morden office by appointment.

Which accounting software works best for r&d tax credits?

We regularly work with Xero, QuickBooks, FreeAgent, Sage and connected sales or expense apps. The right setup depends on transaction volume, integrations and the reports you need, not simply the software brand.

What tax deadlines matter for r&d tax credits?

The relevant calendar may include annual accounts, Corporation Tax payment and return dates, confirmation statements, VAT returns, payroll submissions and Self Assessment. We map the dates from your company year end and registrations.

Can I get free basic tax advice about r&d tax credits?

Yes. You can ask a straightforward initial question without charge. Calculations, filings, written advice, planning and HMRC correspondence are scoped and quoted before work begins.

Free tools

Run the numbers before we speak

Free UK tax calculators built on 2026/27 rates for limited company directors.

Related services

What usually sits alongside this

Limited company accountants in London, Morden, Croydon and across the UK.

Included approach

Organised, explained, on schedule.

Clear scopeDeadline visibilityHuman support

Ready when you are

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Key tax terms explained

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Tell us what is getting in the way.

Share your next deadline, accounting problem or growth question. We will reply with a clear next step and quote any technical work before it begins.

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Pick a time that suits you and a qualified accountant will call you about your company, deadlines and fees.

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Appointments run Monday to Friday, 9:00am to 5:30pm. Your confirmation is emailed straight away.

Four London offices

Meet us in Morden, Croydon, Chelsea or Mitcham

Work with us entirely online, or sit down with your accountant at whichever office suits you. Open Monday to Friday, 9:00am to 5:30pm. Office visits are by appointment only, so please book before coming in.

Morden, Surrey12 London Road, Morden, SM4 5BQHead office, two minutes from Morden Underground station.DirectionsRead ACCOTAX Google reviews
Croydon73 Park Lane, Croydon, CR0 1JGCentral Croydon, minutes from East Croydon station.DirectionsRead Croydon Google reviews
ChelseaM-112, 65-69 Lots Road, SW10 0RNWest London base for Chelsea, Fulham and Kensington clients.DirectionsRead ACCOTAX Google reviews
Mitcham141 Morden Road, CR4 4DGServing Mitcham, Tooting and the CR4 postcodes.DirectionsRead Mitcham Google reviews

Free, no obligation

Book a call

Pick a time that suits you and a qualified accountant will call you about your company, deadlines and fees.

Appointments run monday to friday, 9:00am to 5:30pm. Your confirmation is emailed straight away.

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