Most UK accountancy practices grow through referrals, networking and slow inbound. Those channels work, but they cap out at maybe 1–2 new clients per month for a small practice, and they're inconsistent.
The practices that grow faster than that almost all have one thing in common: they run a weekly outbound cadence based on Companies House data. This post is the playbook.
The two best buying signals for accountants
Out of every public Companies House data point, two carry by far the most predictive power for "needs a new accountant":
Signal 1, Brand new incorporation (first 90 days)
A company incorporated in the last 90 days almost never has an accountant yet. The founders are busy setting up bank accounts, picking software (Xero, FreeAgent, QuickBooks) and figuring out VAT. They are *actively shopping* for a fixed-fee onboarding deal.
Conversion rates on cold outbound to brand-new Ltd companies are routinely 6–12% reply rate, 1–2% to a discovery call.
Signal 2, Approaching accounts deadline (next 30–90 days)
A company whose accounts are due in 30–90 days and which has either no accountant in their public records, or has had an accountant change recently, is in *immediate-buying* mode. They have a deadline-driven problem.
Conversion rates here are even higher, often 10–14% reply rate, but the volume is lower because most companies of any age already have someone.
See our filing deadlines guide for the full deadline math.
The weekly cadence
Pick one half-day per week, most of our customers do Tuesday morning. The cadence:
Monday afternoon (15 min): Pull two prospect lists, (1) UK Ltd companies incorporated in the last 90 days, in your region, in your target SIC clusters; (2) UK Ltd companies whose accounts are due in the next 30–90 days, in your region.
Tuesday morning (2–3 hrs): Review the lists. De-duplicate against existing clients and against your CRM. Send personalised first-touch emails, see template below. Aim for 30–50 sends.
Wednesday afternoon (30 min): Reply to first-touch responses. Schedule discovery calls.
Thursday afternoon (30 min): Send follow-ups to any first-touches that haven't replied (one polite bump is fine, two is pushing it).
Friday morning (1 hr): Discovery calls.
A 1-person practice running this cleanly typically books 3–5 discovery calls per week and converts 1–2 per week to a retainer client. That's 4–8 new retainer clients per month from outbound alone, on top of whatever referrals are doing.
The first-touch email template
The single most important rule: reference something specific to *their* business that they will believe you genuinely looked at. The incorporation date, the trading name, the SIC code, the registered office town. Not the generic "I came across [Company Name] and was impressed by your work", every founder ignores that.
A version that converts well:
Subject: Quick question on [Company Name]'s first accounts
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Hi [Director First Name],
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Saw [Company Name] was incorporated in [Month Year], congratulations on getting started.
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Quick question: have you decided on an accountant for the first set of accounts yet? If not, we offer a fixed-fee onboarding for new UK Ltd companies, £[X] all-in for first-year accounts, confirmation statement, and the Xero/FreeAgent setup. No surprises.
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Happy to send a one-pager if that's useful, or skip the pitch and just answer questions if you have any.
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[Your name] [Your firm]
That's it. No three-paragraph value prop. No company about-us. The point is to invite a reply, not close in the email.
Setup tips
Use a real signature, your name, your firm name, your phone number, your ICAEW/ACCA registration number if applicable. Founders are wary of cold emails from companies they can't verify.
Send from a domain-matched email, if your firm is clarkaccountants.co.uk, send from your.name@clarkaccountants.co.uk, not from a personal Gmail. This is the single biggest factor in deliverability and trust.
Don't BCC bulk, every email goes to one prospect at a time. The 30 minutes per week extra is what makes it work.
Track replies in a spreadsheet, not a CRM yet, a CRM is overkill until you're past 100 conversations a month.
What to charge for new-company onboarding
The most common pricing among our accountant customers in 2026:
- First-year fixed fee: £750–£1, 500 depending on complexity, all-in (accounts + CS + Xero setup + 2 hours of advisory)
- Year-2 onwards: £85–£150/month retainer
- Add-ons: payroll £25/month per employee, VAT returns £45/quarter
Lead with the first-year fixed fee in the email. The lifetime value comes from year 2 onwards.
What if you're not a generalist?
If you specialise (e.g. e-commerce accounting, contractor accounting, hospitality, dentistry), narrow your SIC cluster to match. The replies will be lower volume but much higher quality. A specialist practice can hit 20%+ reply rates by being unmistakably the right firm for that ICP.
See our SIC code guide for the highest-value clusters by sector.
Bottom line
Companies House gives every UK accountant a free, fresh, weekly feed of high-intent prospects. The only thing between you and 4–8 new retainer clients per month is the discipline to run the same workflow every Tuesday morning.
Leadistry maintains a live database of 5 million UK companies, enriched from the Companies House register with verified websites, business emails and social profiles. We write about the craft of finding and reaching the right businesses, first.
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