Quick answer: When you run a professional services firm, you need to track everything from your accounts receivable days to the revenue growth rate and net profit margins every month. These KPIs can show how your firm is growing profitably and if it’s generating enough income. Allenby Accountants can help you monitor these numbers so you can easily spot potential financial issues early.
If you’re checking your professional services firm’s finances only once a year, you won’t be able to see signs of trouble early enough to do something about them. You may not have much room to recover: late client payments you didn’t factor in can tighten your cash flow, and rising costs you didn’t prepare for can force you to cut spending elsewhere.
Tracking your financial KPIs each month can give you a clearer picture of your firm’s financial health. With help from professional services accountants, you can make decisions based on what your numbers tell you now instead of waiting until year-end.
Your accountants can also recommend accounting software with a simple monthly dashboard. This can help you spot opportunities and identify smaller financial problems before they become more expensive. More importantly, you’ll have useful information when making decisions about hiring, pricing, and spending.
Here are some of the financial KPIs that you and your accountants should track every month.
| KPI | What it tells you | What to watch for |
| Revenue growth rate | Whether revenue is increasing or falling | Growth that doesn’t translate into stronger profits |
| Net profit margin | How much revenue remains after costs | Margin falling while revenue rises |
| Accounts receivable days | How quickly customers pay | Payment times getting longer |
Revenue growth rate
Your revenue growth rate shows how much your revenue has gone up or down compared with an earlier period, usually as a percentage. Checking it every month will give you a better sense of how your business is doing. Compare your latest figures with the same period last year for additional insights. Are you thinking of hiring more people or taking on a larger office? The trend can help you judge whether the business can absorb the additional expense.
Of course, revenue growth doesn’t tell you the whole story, so it still helps to have professional services accountants around to help you look behind the numbers and understand what’s actually driving them. They can dig into whether that growth is sustainable.
Net profit margin
Your net profit margin basically tells you how much money you actually keep once you’ve paid for everything, from salaries and everyday overheads to taxes.
And this is important because your firm won’t always make good money even if you have a lot of clients. You could be bringing in more sales every month but also spending more to deliver your services. This could squeeze your profits when you let the costs keep climbing.
With professional services accountants, you can easily check your net profit margin regularly. This gives you a better idea if all that work is actually putting more money into the business after you’ve covered your expenses.
One thing you’ll definitely want to watch is what happens when your revenue goes up but your net profit margin goes down. You might be growing and taking on more work, but you’re not necessarily becoming more profitable. By checking this KPI every month, you can catch that trend sooner and figure out where the extra money is going.
Accounts receivable days
Accounts receivable days or debtor days tell you how long customers typically take to pay after you invoice them. If you’re running a small professional services firm in the UK, outsourcing your accounting can make it easier to track all payments, especially the late ones.
The UK government also announced stronger measures against late payments in March 2026, including greater transparency around poor payment practices and additional powers for the Small Business Commissioner.
By checking your debtor days every month, you can tell which customers owe you money, along with how much they owe and how long their invoices have been outstanding.
If you notice payment times increasing, professional services accountants can act sooner. They may recommend tightening your payment terms or even follow up on invoices on your behalf.
Need help tracking your financial KPIs?
You don’t have to monitor all these numbers alone. Connect with Allenby Accountants and let our professional services accountants help you keep track of your firm’s financial performance each month.
To get started, book your free initial consultation by giving us a call on 0208 914 8887. We can discuss the accounting support you need and provide a quote based on your requirements.
