Accountants for UK Tech, SaaS and AI Startups
Most tech, SaaS and AI businesses do not set up the company to manage deferred revenue, R&D claims and EMI option pools. They set it up to build the product. The way SaaS revenue is accounted for, the way AI compute costs hit the P&L, the way share options are valued, the way R&D claims are prepared, and the way investors read management accounts — none of that is the same as a normal trading business. Get any of it wrong and the cost lands directly in your take-home pay or your runway.
We get it right from the start.
NDCA is an ACCA-regulated accountancy practice working with UK tech businesses, SaaS companies, AI startups, software agencies and growth-stage startups, working primarily on Xero. We charge a fixed monthly fee so your bookkeeping, recurring revenue accounting, R&D evidence trail, payroll and the numbers an investor expects to see are all managed every month
Contact us today for a free consultation to walk through your situation.
R&D tax relief — the rules changed in April 2024
The biggest change to R&D tax relief in years. For accounting periods beginning on or after 1 April 2024, two new schemes replaced the old SME and RDEC regimes:
The merged R&D Expenditure Credit (RDEC) scheme
The merged scheme delivers a 20% taxable above-the-line credit which is broadly worth 15-16.2p in the pound of qualifying R&D expenditure after corporation tax (16.2p for loss-makers or companies with profits below £50,000, 15p for companies paying the main rate)
Enhanced R&D Intensive Support (ERIS) for loss-making SMEs
A more generous scheme available to loss-making SMEs whose qualifying R&D expenditure is at least 30% of total expenditure. The R&D intensity threshold was lowered from 40% to 30% under the new rules, bringing more companies into scope. ERIS gives a deduction of up to 186% on qualifying R&D costs and a payable credit of up to 14.5% on surrendered losses.
A one-year grace period protects companies that temporarily drop below the 30% threshold so they do not lose ERIS access immediately. Companies eligible for ERIS can still choose to claim under the merged scheme, but cannot claim both for the same expenditure.
R&D for AI startups — where the rules get contested
AI is the area of R&D where HMRC currently scrutinises claims most carefully. The merged scheme requires ‘scientific or technological uncertainty’ and a ‘genuine advance in the field’. For AI companies, the line between applying existing AI APIs (not R&D) and developing novel techniques, training new models, or solving genuine engineering uncertainty (R&D) is contested.
Common positions we see go wrong: claiming for prompt engineering against off-the-shelf models (rarely qualifies), claiming for fine-tuning an open model without documented technical uncertainty (sometimes qualifies, often does not), and claiming general engineering work as R&D because ‘AI was involved’ (almost never qualifies). HMRC has rejected AI-related claims in volume since 2023.
Where the work involves novel architecture, genuine training-time experimentation, infrastructure for distributed training, or solutions to known unresolved problems in the field, the claim is usually defensible — but the evidence trail has to be in place from the start. We work with AI clients to document the technical uncertainty, the advance sought and the qualifying boundary before the claim is filed.
What also changed
- Overseas R&D costs are mostly no longer eligible. Subcontracted R&D and externally provided workers must generally be carried out within the UK. Limited exceptions apply where work cannot be done in the UK for geographical, environmental or regulatory reasons.
- Contracted-out R&D rules redefined. The party that decides what R&D to do and bears the risk is the one entitled to claim. This matters for software businesses doing development under client contracts.
- Subsidised expenditure restrictions removed under the merged scheme. Grant-funded R&D can now be claimed under either the merged scheme or ERIS, rather than being pushed to RDEC.
- Mandatory advance notification. First-time claimants and companies that have not claimed in the previous three years must notify HMRC of their intention to claim within six months of the end of the period of account.
- Detailed additional information form. All claims now require a structured submission setting out the projects, the technical advances sought, the uncertainties, and the qualifying costs.
R&D tax relief is one of the most rewarding reliefs available to a UK tech business — and one of the most heavily scrutinised. HMRC has stepped up enquiries significantly. A well-prepared claim with proper technical narrative and clear cost allocation gets paid. A weak claim gets challenged, delayed, or rejected. We work with R&D specialists where the claim warrants it and prepare the underlying figures from clean Xero data.
SaaS revenue accounting — the part most accountants get wrong
A monthly £100 subscription paid annually upfront is not £1,200 of revenue on the day the customer subscribed. Under UK GAAP and IFRS 15, it is £100 of revenue per month, recognised over the contract term, with the unearned balance sitting as deferred revenue on the balance sheet.
Most generalist accountants do not run this properly. The result is profit that swings wildly month to month, management accounts that bear no relation to the recurring revenue picture, and an investor due diligence that uncovers a year of misstated income at the worst possible moment.
We set up Xero to track:
- Monthly Recurring Revenue (MRR) and Annual Recurring Revenue (ARR)
- Deferred revenue schedules for annual, multi-year and discounted contracts
- Revenue recognised by month, with the cash collected sitting separately
- Churn, expansion and contraction of MRR
- Customer Lifetime Value (LTV) and Customer Acquisition Cost (CAC) where the underlying data supports it
- Cohort revenue retention for businesses preparing for fundraising
The result is management accounts and investor reports that match what the founder already feels is true — and that hold up under scrutiny.
EMI options, share schemes and founder tax
Tech businesses use share options to attract and retain staff in ways that other industries do not. The two routes that matter most:
EMI is the most generous share option scheme available in the UK. From 6 April 2026, the qualifying limits were significantly expanded — opening EMI to a materially larger pool of UK scale-ups.
Company qualifying conditions (from 6 April 2026): Gross assets up to £120 million (up from £30 million). Fewer than 500 full-time equivalent employees (up from 250). Total unexercised EMI options up to £6 million (up from £3 million). Options must be exercisable within 15 years of grant (up from 10 years). Not in an excluded trade.
Per-employee limit (unchanged): Options up to £250,000 in any 3-year period.
Tax treatment (unchanged): No income tax or NIC at grant or exercise, provided the strike price equals market value at grant. Capital Gains Tax on disposal — typically at the Business Asset Disposal Relief rate where conditions are met.
The April 2026 changes opened EMI to Series B and Series C companies that previously outgrew the scheme. If you stopped using EMI because of the old limits, the conversation is worth revisiting.
EMI grants in a fast-moving valuation environment
AI valuations move faster than the rest of the market. EMI grants are valued at the date of grant — and HMRC does not allow retrospective adjustments. Issue options at a low valuation, raise at a 10x markup three months later, and the per-employee £250,000 cap is much harder to plan around. We help AI clients on grant timing — sequencing grants before priced rounds where commercially reasonable, and documenting the valuation methodology so it stands up to later HMRC review.
Founder share planning
Most tech founders take a low salary and most of their economic return through share value growth. Salary level needs to be high enough to maintain National Insurance contributions and pension eligibility, but no higher than necessary. Dividends, share buybacks, founder secondaries on a Series A — each has different tax treatment. We model the personal tax position alongside the company position so founders see the after-tax picture, not just the company P&L.
SaaS-specific VAT issues
VAT on software and digital services is its own world.
Place of supply rules
For B2B sales of digital services to a customer in another country, the place of supply is usually the customer’s country, with the customer accounting for VAT under reverse charge. For B2C sales of digital services within the EU, you may need to register under the EU’s One Stop Shop (OSS) or, post-Brexit, deal with each member state separately. To the US and most non-EU countries, B2C digital services are outside the scope of UK VAT.
Reverse charge on overseas software costs
Most UK SaaS businesses pay overseas suppliers — AWS, Google Cloud, Stripe, OpenAI, Notion, GitHub. UK VAT-registered businesses must self-account for VAT on these under the reverse charge mechanism. The VAT is added to the return as output VAT and reclaimed as input VAT in the same return — net effect usually nil, but failing to do it correctly is a common error.
MOSS, OSS and IOSS for cross-border digital services
The EU’s Non-Union One Stop Shop (Non-Union OSS) lets UK businesses register VAT for B2C digital services to EU consumers via a single EU member state, instead of registering in each EU country of sale.
The tax issues tech founders ask us about most
Equipment:
- Cameras, lenses, tripods, gimbals
- Lighting (key lights, ring lights, softboxes)
- Microphones, audio interfaces, recording equipment
- Computers, laptops, tablets, monitors
- Storage (NAS, external drives, cloud storage)
- Annual Investment Allowance — 100% deduction on qualifying equipment up to £1,000,000 per year
Software and platforms:
- Adobe Creative Cloud, Final Cut, DaVinci Resolve, CapCut Pro
- Notion, Asana, ClickUp for content planning
- Canva, Figma for graphics and thumbnails
- Email marketing tools (ConvertKit, Mailchimp, beehiiv)
- Scheduling tools (Buffer, Later, Hootsuite)
- Cloud storage and backup
- AI tools (ChatGPT, Claude, Midjourney) used for content production
SEIS and EIS
Investor relief schemes that make raising money easier.
The Seed Enterprise Investment Scheme (SEIS) gives investors 50% income tax relief on investments up to £200,000 per year, plus CGT relief on disposal. The Enterprise Investment Scheme (EIS) gives 30% income tax relief on investments up to £1m per year, plus CGT deferral. Both schemes have strict company qualification rules — trade type, gross assets, employee count, age of company, use of funds. We handle advance assurance applications and share issue compliance certificates.
Software capitalization
The line between expense and asset, and why it matters for SaaS.
Internally-developed software is sometimes capitalised on the balance sheet and amortised over its useful life, sometimes expensed entirely through the P&L. The decision affects EBITDA, taxable profit, R&D claim values, and investor metrics. We apply UK GAAP (FRS 102) consistently and document the policy clearly.
Cash burn and runway
Two metrics every investor will ask about, and most accountants do not report.
Net monthly cash burn and runway (months of cash remaining at current burn) are the two numbers that determine the next fundraise. We integrate these into monthly management accounts so founders see them every month, not just in the pre-fundraise scramble.
MTD for Income Tax for solo contractors
Contracting through your own limited company? You’re outside MTD ITSA. Sole-trader software freelancers above £50,000? You’re in.
Sole-trader founders, freelancers and consultants with qualifying income above the current MTD threshold now fall into Making Tax Digital for Income Tax. The threshold is being phased down over time. We get sole traders on Xero before their first quarterly deadline.
What can a tech or SaaS business claim as an allowable expense?
The big categories:
Software and infrastructure:
- Cloud hosting (AWS, Google Cloud, Microsoft Azure, Vercel, Cloudflare)
- SaaS subscriptions (Slack, Notion, Linear, GitHub, Figma)
- Domain registration and DNS
- API costs (OpenAI, Anthropic, Stripe, third-party data services)
- Development tools and CI/CD services
Equipment and capital purchases:
- Laptops, monitors, peripherals
- Office equipment and furniture
- Annual Investment Allowance — 100% deduction on qualifying plant and equipment up to £1,000,000 per year
- Full expensing for qualifying new assets bought by limited companies
Personnel costs:
- Salaries, employer NIC, employer pension contributions
- Contractor and consultant fees (mind IR35 — see below)
- Recruitment fees
- Training, conferences and professional certifications
Marketing and growth:
- Paid advertising (Google, LinkedIn, Meta, X)
- Content production and SEO
- Sales tools (CRM, sales engagement, prospecting)
- Conferences, sponsorships and events
R&D-eligible costs (note: claimed under the merged RDEC scheme or ERIS, not as standard deductions):
- Salaries of staff doing qualifying R&D
- Externally provided workers on qualifying R&D (UK-based from April 2024 with limited exceptions)
- Software and consumables used in qualifying R&D
- A portion of utility costs attributable to R&D activity
Office and admin:
- Co-working space membership or office rent
- Use of home as office for remote founders (HMRC simplified rate £10–£26 per month, or actual business-use proportion)
- Business insurance (professional indemnity, public liability, cyber)
- Accountancy and bookkeeping fees
- Bank charges and FX costs
Not allowable: client entertaining, the personal-use portion of any expense, and overseas R&D costs claimed under the new rules (with limited exceptions).
AI startups — the issues that don't fit the SaaS playbook
AI businesses are not just SaaS companies with a different product. The economics, the cost structure, the R&D position and the IP questions are different — and so is the way the numbers should be presented to investors. Here are the issues that come up on every AI client engagement.
Compute spend is your dominant cost
OpenAI, Anthropic, AWS, Google Cloud, Azure — most AI startups spend more on compute and inference than on payroll. The bill is in USD, billed monthly, sometimes daily, and the volume scales with usage rather than headcount. We track compute spend as a separate cost category in your management accounts so cost per inference, cost per customer, and gross margin per product are all visible — not buried inside ‘cloud hosting’.
Foreign currency — most of your costs hit you in USD
AI API providers, cloud platforms, and most AI infrastructure tools bill in USD. UK revenue lands in GBP. The FX gain or loss on every month’s payment runs through your P&L. We handle the multi-currency setup in Xero, reconcile the actual GBP cost against the contracted USD price, and report the FX impact separately so it does not distort your unit economics.
Knowledge Intensive Company (KIC) status for SEIS/EIS
Most AI startups doing genuine R&D qualify as Knowledge Intensive Companies under the EIS rules. KIC status gives a higher annual EIS raise (£20 million vs £10 million for general companies) and a higher investor relief limit. We check whether your company qualifies — based on R&D spend percentages, qualifying employees with master’s or PhD degrees, or new IP development — and apply for KIC status at the advance assurance stage.
R&D claims — where AI gets scrutinized
HMRC has rejected a meaningful volume of AI-related R&D claims since 2023. The issue is usually evidence: prompt engineering, fine-tuning, and applying existing models rarely qualify. Novel architecture, training-time engineering uncertainty and genuinely new techniques usually do. We work with AI clients to draw the line correctly, document the technical uncertainty in real time (not retrospectively), and prepare claims that stand up to enquiry.
GPU and hardware capital expenditure
Some AI startups buy GPU clusters rather than rent them — the economics often justify it once compute spend exceeds £100,000 a month. We handle the capital allowance position (Annual Investment Allowance up to £1 million, then writing-down allowances), finance leases vs purchase decisions, and the depreciation treatment in management accounts.
Investor reporting — the metrics that matter
AI investors look at metrics that do not exist on a standard SaaS dashboard: cost per inference, model training cost amortisation, customer compute cost per ARR pound, retention by model version. We build the management pack around the metrics your investors actually ask for at board meetings — not the generic SaaS template every other accountant produces.
Who we work with
NDCA tech and SaaS clients fall into a few groups:
- Bootstrapped SaaS businesses scaling from £10k to £100k+ MRR
- Venture-backed startups preparing for or post-fundraise
- Software agencies and development consultancies
- Tech-enabled service businesses (marketing tech, ed-tech, fin-tech, health-tech)
- Mobile app businesses with App Store and Google Play revenue
- AI and ML businesses with significant compute costs
- B2B software companies selling internationally
- Founder-only limited companies for contracting developers
- AI startups building products on top of foundation models (GPT, Claude, Gemini)
- AI-native companies training their own models or developing new architectures
- AI infrastructure companies — model hosting, evaluation, fine-tuning platforms
- AI agencies and consultancies building bespoke AI implementations for clients
- LLM and generative AI startups in regulated sectors (healthtech, fintech, legaltech)
If your situation is not on the list, send us a message — it almost certainly fits.
How NDCA works
Three things make our service different for tech and SaaS specifically.
- Fixed monthly fee
You pay one price every month for everything we agreed at the start — bookkeeping, MRR and deferred revenue tracking, VAT, payroll, R&D claim support, year-end. No clock-watching, no per-question charges. - A real human, fast
You get a named accountant who understands SaaS metrics and tech business models. Most questions get a reply within one working day, which matters when an investor wants a clarification on the data room by 5pm. - Built around how a tech business actually grows
Tech businesses grow in steps — not in steady monthly increments. A new pricing tier, a Series A close, a contract that triples ARR overnight, a transatlantic hire. We build the workflow to handle the steps cleanly, not to be surprised by them.
Xero is the only platform we use
Xero is the only bookkeeping platform we run. For tech and SaaS, that matters.
Stripe and other payment platforms feed structured monthly journals straight into Xero — gross sales, fees, refunds, chargebacks, FX gains and losses, all coded correctly. Deferred revenue schedules track subscription terms cleanly. Multi-currency transactions reconcile at the right exchange rate. Bank feeds match against actual deposits. The VAT return calculates automatically and submits direct to HMRC under MTD.
If you are not yet on Xero, we migrate you across as part of onboarding. If you are already there, we plug straight in.
Apron for invoice capture
Tech businesses pay dozens of suppliers in multiple currencies, mostly on credit cards. AWS bills in dollars. Stripe deducts fees in real-time. Linear, GitHub, OpenAI and a hundred other SaaS subscriptions land on the same business card each month.
We use Apron to capture all of it. Forward invoices to your dedicated Apron email address, or snap a photo of a receipt, and the supplier, date, amount, VAT and line items are pulled out automatically and pushed into Xero — coded correctly, FX-converted where relevant, and matched to the credit card transaction. By the time year-end arrives, every cost is documented and every allowable expense is claimed.
Raising your next round or claiming R&D?
SEIS/EIS advance assurance, R&D claims under the merged scheme, EMI option grants, ARR reporting for investors — all need to land right the first time. Send us your situation — we'll come back within one working day with a fixed monthly quote.
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Switching from another accountant
If you already have an accountant and your management accounts do not show MRR, deferred revenue is not being tracked, or the R&D claim has been "we'll look at it next year" for two years, switching is simpler than people think. We send your current accountant a professional clearance letter, collect your records, and pick up where they left off. Most tech clients are fully on-boarded within two weeks.
You do not need to wait for year-end. You do not need an awkward phone call. We handle it.
Tech and SaaS accounting FAQs
Yes, but the rules changed for accounting periods beginning on or after 1 April 2024. Most companies now claim under the merged R&D Expenditure Credit (RDEC) scheme — a 20% taxable credit giving roughly 15-16.2% net benefit. Loss-making SMEs with R&D spend of at least 30% of total expenditure can claim under the more generous Enhanced R&D Intensive Support (ERIS) scheme.
Overseas R&D costs are mostly no longer eligible.
Yes, in many cases. First-time claimants and companies that have not claimed in the previous three accounting periods must submit a claim notification form within six months of the end of the period of account. Missing this window means the R&D claim cannot be made.
In most cases, no — for accounting periods beginning on or after 1 April 2024, qualifying R&D activity must generally take place in the UK. Limited exceptions apply where R&D cannot be done in the UK for geographical, environmental or regulatory reasons (not cost-saving). Subcontractor work done overseas and externally provided workers based overseas are generally excluded.
A subscription paid annually upfront is not recognised as revenue when the cash is received. Under FRS 102 and IFRS 15, the revenue is recognised over the contract term — typically monthly — with the unearned balance held as deferred revenue on the balance sheet. We set up deferred revenue schedules in Xero so MRR and recognised revenue stay accurate every month.
The Enterprise Management Incentive (EMI) is a tax-advantaged share option scheme for qualifying small companies. Employees receive share options worth up to £250,000 each, with no income tax or NIC on grant or exercise if the strike price equals market value. Capital Gains Tax applies on disposal, often at the Business Asset Disposal Relief rate. EMI requires strict compliance — HMRC valuation, grant notification within 92 days, and annual returns.
SEIS (Seed Enterprise Investment Scheme) gives investors 50% income tax relief on investments up to £200,000 per year in qualifying early-stage companies. EIS (Enterprise Investment Scheme) gives 30% relief on investments up to £1m per year in qualifying companies. Both have strict company qualification rules and timing requirements. We handle advance assurance and compliance certificates.
For B2B sales of digital services to non-UK businesses, the place of supply is usually the customer's country and you do not charge UK VAT — the customer accounts for VAT under reverse charge in their own country. For B2C sales of digital services within the EU, you may need to register under the One Stop Shop (OSS) scheme. To the US and most other non-EU countries, B2C digital services are outside the scope of UK VAT.
If you are UK VAT-registered, yes. Most overseas SaaS suppliers do not charge UK VAT. You must self-account for VAT under the reverse charge mechanism — adding the equivalent UK VAT as output VAT on your return and reclaiming it as input VAT in the same return. The net effect is usually nil but the entries must be made correctly.
You must register once taxable turnover exceeds £90,000 in any rolling 12-month period. Many tech startups register voluntarily before then to reclaim VAT on UK software, marketing and equipment costs — particularly worthwhile when you have significant pre-revenue spend.
Xero, exclusively. We are a certified Xero Partner. We integrate Xero with Stripe, payment gateways, multi-currency banking and Apron for supplier invoice capture.
Yes. NDCA is regulated by the ACCA (Association of Chartered Certified Accountants).
We are remote first. We work with tech businesses across the UK using Xero, so location does not matter.
Yes. Book one on 01903 968618 or via the contact form.
Yes. AI startups have specific issues that do not fit the standard SaaS playbook — compute costs in USD, R&D claims under heavier HMRC scrutiny, Knowledge Intensive Company status for SEIS/EIS, EMI grants in a fast-moving valuation environment, and investor metrics that go beyond ARR. We build the workflow around these. We are not an AI-specialist firm — we are a tech-specialist firm with active AI clients, which means the rules are familiar and the support is consistent.
Yes. We prepare HMRC advance assurance applications for SEIS and EIS, advise on share structure and KIC qualification, run the compliance statements after share issue, manage the EMI option grant process (valuations, agreements, HMRC notifications), and maintain the cap table alongside Xero. For complex cap table situations (multi-class shares, growth shares, anti-dilution provisions), we coordinate with specialist equity counsel as needed.
Ready for investor-ready numbers?"
Most tech, SaaS and AI clients hand us the Stripe payouts, AWS bills, OpenAI/Anthropic invoices, contractor invoices and platform statements once a month — and never think about VAT, R&D substantiation or revenue recognition again. Send us a few details — we will come back within one working day with a fixed monthly quote.
