If you’re running a busy accounting practice but your margins aren’t reflecting that, you’re not alone. Workloads grow, teams expand, but the numbers at the end of the month barely move.
Raising fees is usually the first thought. Sometimes it’s right, but it’s rarely the whole answer. In most practices, the profit is already there. It’s just getting lost in how work is staffed, how time is tracked or how processes are run.
Accounting firms can improve profit margins by tackling write-offs, standardising processes, right-sizing team delegation, outsourcing low-complexity compliance work, maximising software automation and integration, and reviewing pricing against actual scope — all without increasing client fees.
Here’s where most firms are losing it.
1. Your best people add more value when they focus on strategic work
Qualified, experienced staff are your most expensive resource. If they’re spending most of their week processing VAT returns, reconciling accounts and running payroll, that’s a margin problem regardless of how well the work gets done. It’s not that the work doesn’t matter, it’s that it doesn’t need them to do it.
Increasing the percentage of billable time, the realisation rate, is where significant improvements can be made. Optimised firms are looking at over 77% employee billable utilisation while research shows an average utilisation rate between 70 and 90% for production staff. Whilst 100% is obviously not achievable, minor tweaks upwards can dramatically increase profitability.
Work that needs doing but doesn’t need your best people:
- Bookkeeping and bank reconciliations
- VAT return preparation and submission
- Payroll processing and auto-enrolment
- Management accounts
- Year-end accounts
Work that actually builds the firm:
- Tax planning and structuring
- Business forecasting
- Client meetings
- Strategic advice
- Business developement
The more time your senior staff spend on that second list, the better your margins look. It’s worth being honest about how your team’s time is currently split.
2. Is outsourcing worth a second look
Many firm owners still associate outsourcing with slow turnarounds and quality issues. That perception is outdated. When it’s set up properly, compliance work is handled by specialists at a lower cost than in-house. You keep the client and the fee. Your team just stops spending time on work that doesn’t need them.
That gives you:
- Reduced overheads: No extra salaries, NI, pensions or desk space
- Room to grow: Take on new work without hiring first
- Faster turnarounds: Clients notice, and it matters for retention
- Fewer write-offs: Work done right the first time means less unbilled correction time
Good outsourcing firms like Stellaripe run quietly in the background. Compliance gets handled, clients are looked after and your team focuses on work that grows the firm.
Outsourcing compliance work to a specialist offshore team typically reduces cost by 40–60% compared to in-house staffing costs.
3. Why does adding more clients not always improve accounting firm profitability?
When growth feels slow, the instinct is to go out and find more clients. But if the team is already at capacity, adding volume without changing anything else just creates more pressure and thinner margins.
Before going after new business, look at what’s happening with the work you already have:
- Utilisation: How much of your billable time is actually making it onto invoices?
- Bottlenecks: Where does work stall before it moves forward?
- Senior time: How much of it is going on tasks a junior could handle?
- Job turnaround: Are files completing at a reasonable pace or sitting for weeks?
Fixing these things costs nothing. Your existing clients become more profitable without winning a single new one.
4. Why are write-offs one of the biggest threats to accounting firm profit margins?
Every firm has them. A job runs over because the client was disorganised. A fixed fee was agreed two years ago and the scope has grown since then. The team absorbs the extra time because raising it feels awkward.
Many practices carry a “bottom 20%” of clients who consume disproportionate time, pay the lowest fees, and refer the least.
To get on top of it:
- Track turnaround times on every job, including fixed-fee work
- Re-evaluate the scope periodically against original letter of engagement
- Look at write-offs by client each month, not just the overall total
- Have straight conversations with clients about what their delays cost you
- Reprice fixed-fee arrangements that consistently run over
A simple annual RAG exercise — rating each client Red, Amber, or Green against fee recovery, payment behaviour, responsiveness, and strategic fit — typically reveals that 15–20% of a firm’s client base is consuming 40%+ of non-billable partner time. Exiting or repricing even half of those Red clients can meaningfully shift your margin without a single new client acquisition.
Nobody enjoys these conversations. But it’s one of the quickest ways to recover the margin that’s already there.
5. How do inconsistent processes silently eat accounting practice margins?
No standard way of working means every job takes slightly longer than it should. One person approaches it one way, someone else does it differently, something gets missed and a senior team member ends up fixing it. That’s time that should be on a client invoice going on an internal problem.
Documented processes make it easier to:
- Delegate work confidently
- Bring new people up to speed
- Spot where things are going wrong
They also give you accurate data on how long jobs actually take, which is the foundation of pricing that reflects reality.
6. Are you getting the full value from your software?
Most practices have moved to cloud accounting, but having the software and actually using it well are two different things. If your team is still doing manually what the platform could handle automatically, you’re paying for something you’re not benefiting from.
A properly set-up cloud system gives you:
- Automated bank feeds and up-to-date reporting
- Integrated tools and client portals that cut down on email chasing
- A stronger position for Making Tax Digital for Income Tax
The ones that have sorted their processes will benefit from the time saving opportunities the software presents. The ones that haven’t invested in training will be the least well equipped to make significant benefits.
7. Does specialising in a niche sector increase accounting firm profitability?
Being good at everything sounds like a strength. In practice, it often means competing on price because there’s no specific reason for a client to choose you over anyone else.
Firms that have built a reputation in a particular sector, whether that’s hospitality, construction or tech businesses, benefit from:
- Higher fees without pushback
- Clients who want sector-specific understanding
- Referrals that come naturally without much effort
Niche-positioned accounting firms report charging 20–35% higher fees for equivalent work compared to generalist practices, according to practice growth surveys.
8. How should accounting firms review their pricing to protect margins?
Not a blanket fee increase but a proper review of whether what you’re charging still reflects what you’re delivering.
Research suggests the average UK accounting firm has not reviewed fixed-fee packages in over two years, despite scope consistently expanding.
Most firms set fees and leave them alone too long. Scope grows, costs rise, the market moves, but the price stays put. A good review covers:
- Under-priced services
- Fixed-fee packages that have crept beyond scope
- Out-of-agreement work that’s never been charged for
For advisory work, value-based pricing is worth exploring. Tying the fee to what the client gets rather than how long it took tends to produce better margins and an easier conversation.
9. Can outsourcing accounting work improve UK practice profitability?
Outsourcing accounting work can meaningfully improve profitability for UK practices. Handing routine tasks such as bookkeeping, payroll and tax compliance to a third party frees up fee earners to focus on higher-value advisory work. It also reduces the cost of employing full-time staff, removing overheads such as National Insurance contributions, holiday pay and training.
For smaller practices in particular, outsourcing provides access to specialist expertise without the expense of hiring it in-house. The key is choosing a provider carefully and ensuring client confidentiality is protected throughout. Done well, it can cut costs, raise capacity and support steady growth.
Conclusion
For most accounting firms, the margin is already there — it simply isn’t being captured because of avoidable write-offs, underused software, and pricing that hasn’t kept pace with the work.
Stellaripe offers a free consultation so you can explore what that looks like for your firm. Get in touch to talk to an expert.
