Who it's for / Accountancy
For accountancy practices
Practice management software for accountants — and what to do when you've outgrown it.
Every list ranks the same tools. Here's a fair look at where they fit, where a growing UK firm hits the wall, and the option none of them mention: software built exactly around your practice, a module at a time.
The real options, honestly.
Practice management software for accountants brings client records, workflows, deadlines, onboarding and billing into one system, instead of a wall of spreadsheets. For a firm coming off spreadsheets, it's a real step up — and for a lot of practices, one of these is exactly the right answer.
| Tool | Known for | Typically best for |
|---|---|---|
| Karbon | Workflow, team collaboration, deep email integration | Medium-to-large teams |
| TaxDome | All-in-one: client portal, e-signing, billing | Small-to-mid practices |
| Capium | UK suite with HMRC & Companies House integration | Compliance-led UK firms |
| BrightManager | Onboarding, recurring workflows, compliance (UK) | UK bookkeepers & accountants |
| IRIS | Established, broad end-to-end suite | Larger, established firms |
| Nomi · Pixie · Senta | Lighter onboarding, docs and workflow | Smaller practices |
A snapshot, not a ranking — features change, so check current specs. And read the honest bit: if one of these fits how your firm actually works, buy it. We'd tell you to, and help you wire it in. This page is for the firms it doesn't fit.
Where a growing firm hits the wall.
An all-in-one tool is built around how most practices work. Your firm's real advantage is usually in the part that isn't like most practices — and that's the part the box can't bend to. So the workarounds start:
- You end up running the practice manager and a proposal tool and a data/analysis tool and a bookkeeping-capture tool — four or five subscriptions that don't share data, so your team retypes the same figures between them.
- The one process that makes your firm faster than the firm down the road is the one thing the tool won't do — so it stays in a spreadsheet only one person understands.
- Per-seat pricing compounds as you grow: the tool gets more expensive precisely as it fits you less.
- When you want a change, you're at the back of a global roadmap queue — if the answer isn't just "no".
The cost of standing still
The admin doesn't shrink. It's about to grow.
None of this is a people problem — it's the gap between what your tools do and what your practice needs. And it isn't free. Three numbers worth sitting with, before the next compliance wave lands:
Making Tax Digital for Income Tax begins — sole traders and landlords earning over £50,000 must keep digital records and file quarterly, with the £30,000 threshold following in 2027 and £20,000 in 2028. HMRC's own figures put it at roughly £320 in one-off costs and £110 a year for each affected client. That's a wall of quarterly work landing on your desk, not theirs. (HMRC, 2025)
The time the average affected business loses just chasing overdue invoices. At the ONS median wage of £19.67 an hour, that alone is about £1,700 a year — before you count the software propping the chasing up. (DBT, 2025) (ONS ASHE, 2025)
UK registered audit firms, 2020 to 2024 — a quarter of them gone in four years. The profession is consolidating and, on ICAEW's own research, talent and retention are its top challenge. The hours your tools waste are hours you can't easily hire your way out of. (FRC, 2025)
What we'd build instead.
Not another all-in-one box. The smallest thing that removes your worst pain first, then the next — each module shaped around how your practice actually runs, live in weeks, and yours to own. For an accountancy firm, that usually starts here:
Client requests that chase themselves
One link per client for the records you need, with reminders that escalate on their own and stop the moment the documents land — so nobody spends Friday chasing.
Records that read themselves, and prove it
Bank statements and documents read by AI, with every figure checked by deterministic maths. A person only ever sees what doesn't balance — the discipline behind the case study below.
Proposal → e-sign → live client, in one flow
Signing an engagement opens the client's file, sets up billing and triggers onboarding — instead of the same details being typed into three systems.
One deadline brain for the whole firm
Every filing, renewal and MTD quarter watched in one place, chasing the right person before it's late — not living in a spreadsheet or someone's head.
The overnight shift
Reconciling, reminding, filing prep and workload rebalancing running while you sleep, with a plain-English summary each morning of what got done.
Every one is a capability we can build now with AI-assisted development — not a promise your firm needs all of it. We start with the one that hurts most.
Proof — not a pitch
We've already built this for one firm.
A UK accountancy practice came to us running on five separate subscriptions and a wall of spreadsheets. Two years later — a module at a time, without the business ever stopping — it runs on one custom platform that replaced all five.
Fair questions
What accountants ask us.
Is there free practice management software for accountants?
A few tools offer a free tier or trial, and some cloud accounting suites bundle light practice features. They're a fine way to get off spreadsheets. The catch is the ceiling: free tiers cap users, clients or workflows, and the moment your process doesn't match the tool's assumptions you're back to spreadsheets alongside it.
What's the best practice management software for UK accountants?
There isn't one — it depends on your size and how you work. Karbon is rated for larger teams; TaxDome and Capium for smaller UK practices; BrightManager and IRIS are long-established. For many firms one of these is exactly right, and we'll tell you so. The question only changes when your firm needs something none of them do.
Do I need custom software, or is off-the-shelf enough?
Off-the-shelf is enough until your firm's real advantage lives in the 30% no tool covers — or until you're paying for four or five subscriptions that don't share data and your team re-keys between them. That's the point custom on a monthly retainer starts to cost less than the workarounds.
How much does custom software for an accountancy practice cost?
It's a monthly retainer, not a big up-front project — tiers from £2,500 to £6,500 a month, with a free process audit and an optional fixed-price discovery sprint first. You own the code and data from day one.
Will it handle Making Tax Digital?
Yes — but MTD compliance is the easy part that many tools already do. The value of custom is the whole workflow around it: collecting records, chasing clients, verifying the data and filing, without your team retyping the same figures between systems.
The first step is small
Bring us your worst process.
Book a free 30-minute process audit. Walk us through the part of running your practice that wastes the most time, and you'll leave with a written map of what could run itself — whether or not we ever work together.
No pitch deck. No obligation. Worst case: you get a free plan.