More clients, without the admin.

Calceum is designed for small accountancy practices. The platform is specifically designed to automate the daily tasks that can bury smaller firms in admin, leaving them with less time to carry out higher value advisory work.

Most practice management systems act as a central repository for information, but you still have to manage the work. Calceum is designed to take on the repeatable steps too: it sends the requests, chases what’s missing and prepares the next step for your team to approve.

Most of what Calceum does today is workflow automation rather than AI. Requests, reminders, proposals, engagement letters and billing run on clear rules, because that is the most reliable way to handle work like this. On top of that sits an AI layer, used where it genuinely helps. Close to release: a chat assistant that answers questions from a knowledge base built on HMRC guidance, and an MCP server so you can connect Calceum to your own AI assistant, such as Claude or ChatGPT. Beyond these, there is much more AI integration on our roadmap, to remove a lot of the remaining manual processes. Nothing statutory, and nothing that moves money, goes without a person signing it off.

Yes, that’s the starting point. Calceum connects to your bookkeeping software (FreeAgent and Xero), email (Gmail and Outlook), payments (Stripe and GoCardless), HMRC and Companies House, and works around how your practice already operates. It’s designed to replace the glue work between tools, not force a migration on day one.

Yes. Calceum publishes a website for your practice, on your own domain and under your brand. Your services, plans, prices, team and offices come from the same settings you use in the app, so there is no separate website to keep up to date: change a plan price and the site rebuilds itself within minutes. Enquiries arrive in your pipeline as leads, and prospects can price their plan and book a discovery call online. Calceum hosts the website as part of the service, because that is what connects it to the platform. We build it with you, with a new brand or your existing one, and both the build and the hosting are included in your retainer. Calceum’s name appears once, in the footer.

You can keep your brand, but the website itself runs on Calceum. Your services, prices and team come from your settings, and enquiries and bookings go straight into your pipeline, which only works when Calceum hosts the site. We rebuild it with your name, logo, colours and wording, on your own domain, so your clients see the practice they already know. Or, if you want a fresh start, we design a new brand with you. Either way, we scope it in the deep dive, and it is included in your retainer.

It depends on where your time goes today, which is what the discovery call and deep dive map out. We start with the highest volume admin, usually onboarding, document chasing and billing, and move new clients onto it first. Existing clients follow in stages, when you’re ready, so nothing changes for your team until the new way is clearly better.

Early access pricing reflects the partnership: you get hands-on onboarding done with us, direct influence on the roadmap, and pricing that recognises you’re shaping the product. Your retainer is set in your written proposal, after the discovery call and deep dive, so it fits how your practice runs.

No. Early access runs as a rolling monthly partnership, not a long lock-in. You’re free to stop if it isn’t working for your practice. We’d rather earn your business every month than tie you into a contract.

Yes, that’s the whole point of early access. You get direct influence on the roadmap and direct contact with our founder, so the workflows we build reflect how your practice actually runs. Early access practices shape what we build next.

Client data is encrypted in transit and at rest, stored in the UK, and handled in line with GDPR. Particularly sensitive identifiers, such as UTRs and HMRC credentials, are encrypted again at the application level.

MTD for Income Tax is being built into Calceum on HMRC’s official MTD APIs, and we expect production access by the end of October 2026. Once it is live, the quarterly cycle for your sole trader and landlord clients runs through the same platform as everything else. MTD is one workflow among many, not a separate product, and using it is optional: if your practice already files MTD with other software, you can keep it.

No. We start by understanding how your practice actually runs, in the discovery call and deep dive, and shape Calceum around that. Your team keeps the judgement calls and client relationships; the repeatable admin underneath is what changes.