Professional services firms are in a uniquely awkward position with collections. Unlike product businesses, where a delivered invoice follows a delivered product, professional services invoices often represent:
The result: UK professional services firms average 52 days to payment versus the legal 30-day term — and many leave this gap untouched because manual chasing feels too awkward or time-consuming.
In 2025, UK law firms invested £189 million in legal technology — a 35% year-on-year increase — as the sector woke up to automation as a competitive advantage. AR automation is a significant component of this investment.
Professional services firms need a process that is firm enough to protect cash flow and careful enough to protect a client relationship. Look beyond reminders and compare the points below in a trial.
Methodology: this guide uses publicly available product information reviewed in August 2026. Confirm current features and commercial terms directly with each provider. Chaser · Satago
From £49/month | Free trial | 48-hour setup
Equisettle is the strongest AR option for professional services firms because it combines predictive intelligence with the flexibility to configure outreach tone per client type. Its AI scores invoice risk up to 14 weeks before the due date — giving account managers early warning on which clients to engage directly, before a formal reminder creates awkwardness.
For retained clients, Equisettle's automated pre-due-date reminders serve as professional confirmation of upcoming payments rather than chasing — maintaining the right tone throughout the relationship. When intervention is needed, multi-channel outreach (email, SMS, WhatsApp) is available with client-specific sequences.
Native integration with Xero, FreeAgent, QuickBooks, and Sage means it fits any UK professional services accounting stack. Setup takes 48 hours.
Best for: Consultancies, marketing agencies, architects, and accountants wanting AI-led, relationship-sensitive collections automation across any UK accounting platform.
From £199/month | Free trial
Chaser's tone customisation and rule-based escalation sequences suit the formal communication expectations of law firms. Its conditional sending logic — pause reminders if client emails outside business hours, skip if recent payment plan is active — is more mature than most tools in this category.
The Care add-on (from £324/month) provides access to a human credit control team — useful for law firms where a final escalation call is preferable to a templated letter.
Email-only. Xero and QuickBooks only (no FreeAgent or Sage).
Best for: UK law firms and larger consultancies wanting structured, formal escalation sequences with optional human backup.
£50/month fixed | Free trial
Trove's FreeAgent integration makes it particularly relevant for UK creative agencies, freelance consultants, and sole practitioners who use FreeAgent as their primary accounting platform. Its fixed pricing and simple email-from-your-domain approach suits boutique professional services firms that want clean, low-volume automation without complexity.
Automatic late payment fee invoicing is useful for consultancies with contract clauses permitting charges. Email-only, no WhatsApp or predictive AI.
Best for: UK agencies, freelancers, and small consultancies on FreeAgent wanting simple, fixed-price invoice chasing.
From £45/month | Free tier
Satago's Experian partnership is valuable for professional services firms onboarding new clients — particularly law firms assessing corporate counterparties, or accountancy practices evaluating new business clients. Running a credit check before agreeing payment terms prevents the most costly AR situations.
Invoice financing is useful for project-based firms with lumpy cash flow between milestone payments. Email-only outreach; no FreeAgent integration.
Best for: Professional services firms where assessing new client creditworthiness before engagement is a core workflow.
EquisettleChaserTroveSatagoStarting price£49/mo£199/mo£50/mo£45/moPredictive AIYesNoNoNoWhatsApp outreachYesNoNoNoFreeAgentYesNoYesNoClient credit checkingNoNoNoExperianPayment portalYesYesNoNoHuman escalationNoYes (add-on)NoNo
Not all clients should receive the same reminder sequence. A retained blue-chip client should receive a pre-due-date confirmation and a polite overdue nudge. A one-time contractor should receive a standard reminder sequence with escalation. Most AR platforms allow you to segment client types and apply different sequences — take the time to configure this properly.
For relationship-sensitive clients, position the pre-due reminder as a "payment confirmation" rather than a chase — confirming the amount, due date, and payment method. This maintains professional framing and significantly reduces overdue rates without any awkwardness.
AR software should handle reminders 1 through 3 automatically. Reserve human escalation for invoices that have been overdue for 30+ days with no response — and use the AI risk score to identify which invoices are most likely to reach that point early.
[Try Equisettle free — 48-hour setup, built for UK professional services →]
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