The accountant built for SaaS founders.
You run the business, we'll take care of the numbers. Transparent pricing, tech-first process, and a team that actually understands subscription revenue.
We work with the best in the business.
We're Xero and QuickBooks certified, and we work fluently across the tools modern businesses rely on.
One accountant. Everything covered.
Whatever stage you're at, whatever your numbers look like — we handle it all.
Bookkeeping
Accurate, up-to-date records so you always know where you stand.
VAT Returns
Stress-free VAT filing, handled on time, every time.
Year-End Accounting
Complete year-end accounts prepared and filed for you.
Management Accounting
Monthly insights to drive smarter business decisions.
Fractional CFO
Senior financial leadership without the full-time cost.
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Why SaaS founders choose Aethon.
Financial expertise built around how SaaS businesses actually work.
Revenue recognition, done right
Subscription and multi-year revenue recognised correctly — no more guesswork.
SaaS metrics that matter
MRR, ARR, churn and deferred revenue tracked and reported properly.
Investor-ready reporting
Numbers your investors trust, ready for every board meeting and raise.
Built around your stack
We plug into Stripe and your billing tools so your finances stay in sync.
Transparent fixed pricing
Know exactly what you pay. No surprise bills.
Regulated by the AAT
Built by a specialist, for SaaS founders.
Aethon was built around one observation: software businesses keep getting handed to accountants who don't really understand them. Generalists who treat subscription revenue like any other income.
That costs founders more than they realise. Wrong revenue recognition, unreliable KPIs, and numbers that aren't telling the full truth when it matters most.
So we built Aethon specifically for this. Deep SaaS expertise, and an accountant who understands how your business actually makes money.
Getting started is simple.
Three steps between you and stress-free finances.
Book a free call
Tell us about your business and what you need. No commitment, no pressure — just a conversation.
We handle the numbers
Onboarding is smooth and fast. We set everything up, connect your software, and get to work.
You focus on growth
With your finances in good hands, you can focus on what you do best — building your business.
The honest answers.
No spin, no jargon — just straight responses to the things people actually want to know.
It's far easier than most people expect, and we handle the heavy lifting. Once you give us the go-ahead, we contact your previous accountant, request the information we need (a process called professional clearance), and take care of the handover. You stay focused on your business while we manage the transition behind the scenes.
Transparently. Our pricing is based on your business type, turnover, transaction volume, software, and the services you need, and you can get an instant estimate using our pricing calculator. The price we agree upfront is the price you pay, with no hidden fees or surprise bills. We also offer monthly payment plans so the cost is spread into manageable amounts rather than large lump sums.
For the vast majority of sole traders, small businesses and growing startups, AAT-licensed is more than enough. Aethon is licensed and regulated by the AAT (the Association of Accounting Technicians) and operates under their professional standards, ongoing oversight, and code of ethics. AAT-licensed accountants are fully qualified to handle bookkeeping, VAT, year-end accounts, self-assessment, tax planning and more. What you get with Aethon is a qualified, regulated professional who specialises in the kind of business you're running, without the overheads and slow processes that often come with larger firms.
Everything runs through a streamlined, modern process, with a client portal for sharing documents and asking questions. No phone tag, no chasing. We pride ourselves on being responsive and straight-talking, so you're never left wondering where things stand.
Absolutely, and you're not alone. Most new clients come to us with a backlog to sort out, receipts in a shoebox, or returns they've been putting off. We won't judge you for it. We'll just get things straight, figure out where you stand with HMRC, and put a proper system in place going forward. The sooner you reach out, the easier it is to fix.
It depends on where you are. If you're earning under £1,000 from a side hustle, you can probably hold off. But once you're past that, registered as a sole trader, or thinking about going limited, it's worth getting proper advice early. Getting your structure right from the start costs far less than fixing it later. We offer a free call so you can ask questions with no commitment.
Ready to stop worrying about the numbers?
Book a free, no-obligation call and let's talk about how Aethon can take the financial weight off your shoulders.