OptimisedI once watched a client lose a £40,000 a year customer over a £900 invoice. Not because they chased it, but because of how they chased it. The reminder emails came from a no reply address, escalated to legal threats within a fortnight, and kept arriving after the invoice had already been paid. That's the fear that stops most UK business owners automating their credit control, and it's a legitimate fear. It's also completely avoidable.
Here's the short answer before we go deep. You can automate debt collection without wrecking relationships if you get three things right. First, design the communication sequence yourself before you buy any software, so a human decided every word and every gap between messages. Second, build in the exits: dispute flags, pause buttons, and rules that route sensitive accounts to a person. Third, make paying easier at every step, because most late payers in Britain aren't refusing to pay, they're disorganised or short of cash that week. The software just runs your judgement at scale. It should never replace it.
Everything below comes from doing this for years with UK small and mid sized businesses, and from research into what the current tools actually cost and what the rules actually say in this country. Not the American rules, which is where most advice online goes wrong.
The Real Cost of Doing Nothing
Let's establish why this matters, because "just keep chasing manually" has a price too. Research commissioned by the Department for Business and Trade and the Office of the Small Business Commissioner, carried out by London Economics and published in 2025, found that UK businesses are owed an estimated £26 billion in late payments at any given time. That works out at roughly £17,000 per affected business, and around 14,000 businesses close every year because of late payment. Thirty eight a day.
The time cost is the bit people underestimate. The same research found affected businesses spend an average of 86 hours a year chasing late payments. That's more than two working weeks of someone's year spent writing awkward emails and making awkward phone calls. If that person is you, the founder, it's two weeks not spent winning work.
One honest caveat on statistics in this space, because you'll see wildly different numbers quoted elsewhere. Depending on the source, UK businesses are owed anywhere from £23 billion to over £100 billion, and the spread exists because different surveys count different things, as a thoughtful breakdown by The Quiet Engine explains when it compares the competing late payment figures and their methods. I use the government commissioned figure because it's the most conservative and the most rigorous. Even at the low end, the problem is enormous.
So the question isn't whether to chase debts. It's whether a system chases them consistently and politely, or whether a stressed human chases them sporadically and, occasionally, badly.
Why Automation Usually Improves Relationships, Not the Reverse
This is the counterintuitive bit, and I want to make the case properly because it's the heart of the whole topic.
Manual credit control is inconsistent by nature. When you're busy, invoices go unchased for weeks, then you notice the bank balance and fire off something terse. Your customer's experience is silence, silence, silence, then a slightly aggrieved email. That inconsistency is what feels personal. A polite reminder that arrives like clockwork three days after every due date feels like process. A grumpy email that arrives out of nowhere on day 40 feels like an accusation.
Automation also removes the emotion. Software doesn't get resentful. It doesn't write "as per my previous email" with gritted teeth. If you wrote calm, warm templates on a good day, that's the tone your customers get on your worst day too.
And crucially, good automation makes paying easier. Payment links in every message, a portal where the customer can see all their outstanding invoices, the option to set up a payment plan without a phone call. A large share of late payment is friction and forgetfulness rather than malice, and reducing friction fixes it without any confrontation at all.
Where automation destroys relationships is when it's set up thoughtlessly: sequences that escalate too fast, messages that can't be paused when there's a genuine dispute, and reminders that keep firing after payment has landed. Every one of those is a configuration choice, not an inherent property of the software. Keep that in mind for the rest of this article.
Know Which Rulebook You Are Playing By
Before touching tools, get clear on the law, because UK debt collection splits into two very different worlds, and mixing them up is how businesses get into serious trouble.
If you're chasing other businesses, you're in the world of the Late Payment of Commercial Debts (Interest) Act 1998. This is favourable territory. You have an automatic statutory right to charge interest at 8 per cent above the Bank of England base rate on overdue invoices, whether or not your contract mentions it. You can also claim fixed recovery compensation of £40 for debts under £1,000, £70 for debts between £1,000 and £9,999.99, and £100 for debts of £10,000 or more, as guides like TinyTax's explainer on statutory late payment interest set out. Whether you actually charge it is a relationship decision we'll come back to, but knowing the right exists changes the tone of your final reminders.
If you're chasing consumers under regulated credit agreements, you're in the world of the Financial Conduct Authority and its Consumer Credit Sourcebook, known as CONC. This is strict territory. CONC 7 governs how customers in arrears must be treated: with forbearance, without harassment or undue pressure, and with collections suspended while you establish whether someone has mental capacity issues. The FCA's rules on treating customers in arrears also point firms to its guidance on vulnerable customers, and since the Consumer Duty came fully into force, the bar is outcomes, not box ticking. A collections operation that recovers money efficiently but handles vulnerability badly is not compliant, however good its numbers look. If you collect regulated consumer debt, you need FCA authorisation, and your automation needs vulnerability routing built in, full stop.
Most readers of this article will be in the first camp, business to business, where no FCA permission is needed and the main constraints are contract law, the Protection from Harassment Act in extreme cases, and common sense. But even ordinary consumer invoices, say a tradesperson billing a homeowner, sit closer to the second world in spirit. There's no automatic statutory interest for consumer debts, courts will cut down excessive late fees, and heavy handed tactics look far worse in front of a judge. Do not import American advice here either. You'll find endless US content about the FDCPA and the CFPB. None of it applies in Britain, and US style contact frequency norms would breach FCA expectations if you're regulated.
Design the Sequence Before You Buy Anything
The biggest mistake I see is buying credit control software and accepting its default templates. Defaults are written to be inoffensive to everyone, which means they're right for no one. Your sequence should be designed on paper first. Here's the shape I use for business to business invoices on 30 day terms, and why each step exists.
Three days before the due date, a friendly heads up. "Just flagging that invoice 1042 for £2,400 falls due on Friday, here's the payment link, shout if anything's wrong with it." This one message does more relationship good than anything else in the sequence, because it isn't a chase at all. It surfaces disputes and lost invoices before anything is late, and it signals that you run a tight ship.
Day one overdue, a light nudge. Assume cock up, not conspiracy. "This may have crossed with your payment run" is genuinely true most of the time. Include the invoice as an attachment again, because half of late payment is "we never received it."
Day seven, a firmer but still warm reminder. Name the amount, name the original due date, offer to talk if there's a problem. This is also where I'd start copying in the customer's accounts contact as well as your day to day contact, because the person you work with often isn't the person who pays.
Day fourteen, a phone call, not an email. Some tools automate call scheduling and even auto dial, but the conversation itself should be human. This is the single most effective step in the whole sequence and the one businesses skip because it's uncomfortable. A five minute call resolves what ten emails cannot, and it's very hard to feel harassed by one polite phone call.
Day thirty, the formal shift. A letter before action, mention of statutory interest and compensation under the 1998 Act, and a clear final date. By this point the customer has had five contacts over five weeks. Nobody reasonable can call that aggressive, and the paper trail is exactly what a court or a debt collection agency would want to see.
Notice what this sequence is not. It's not daily emails. It's not threats in week one. And it's not identical for everyone, which brings me to segmentation, the feature that separates decent automation from crude automation. Your best customer of eight years who's late for the first time should get a gentler, slower track than a new account with a poor payment history. Every serious tool lets you build different workflows per customer group. Use that. Treating a loyal customer to the same escalation as a chronic non payer is precisely how relationships get destroyed.
Two more design rules. Send everything from a real, monitored email address, ideally a named person, never no reply. The moment a customer can't respond to a chaser, you've turned a conversation into a broadcast, and broadcasts breed resentment. And build a dispute pause into the workflow: one click that halts all automated messages on an invoice the moment a customer queries it. Chasing a disputed invoice on autopilot is the fastest relationship killer in this whole field.
The Tools Worth Your Time in the UK
Now the software. Prices below are the published UK figures as of my research for this piece; this market reprices often, so verify before committing. All the tools here integrate with the usual UK accounting stack, meaning Xero, QuickBooks or Sage, and pull invoice data automatically so reminders stop the moment payment is reconciled.
Start with what you already own. Xero, QuickBooks and Sage all include basic automated invoice reminders for free. They're blunt instruments, one sequence for everyone, limited templates, no escalation logic, but as an independent comparison by accounting firm Acenteus notes in its roundup of UK accounts receivable software, built in reminders genuinely cover the simplest needs at no cost. If you send a handful of invoices a month to reliable customers, start here and spend nothing.
Best for: small UK businesses on Xero wanting a dedicated tool without a big bill. Trove, from £50 a month at a fixed price regardless of turnover, focuses purely on automated chasing from your own email address with multiple workflows per customer type and pre due reminders. It deliberately leaves out credit checks and debt collection referrals, which for many small firms is a feature, not a gap.
Best for: chasing plus credit risk in one place. Satago, from around £45 a month, bundles automated reminders with real time credit checks on your customers and optional invoice finance. The credit check angle matters more than people think: the cheapest bad debt is the one you never take on, and vetting new customers is the quiet half of good credit control.
Best for: established UK SMEs and finance teams. Chaser is the best known name in UK credit control and a mature product with escalation workflows, a payment portal, auto calling and a route into managed debt collection. It has become noticeably more expensive: pricing now starts at £199 a month for businesses under £4 million turnover, and according to Trove's analysis of the 2026 price changes, crossing that threshold moves you to £599 a month. It's a good product, but at that price you should be sending serious invoice volume. For a microbusiness it's overkill, and I'd say so to Chaser's face.
Best for: automatic statutory interest. A newer tool, Collect, at £79 a month, calculates Late Payment Act interest and includes the figures in firm and final chase emails automatically, alongside payment prediction and a portal. Paidnice does something similar. Having the interest figure appear automatically in late stage reminders is a wonderfully unemotional way to apply pressure: it's not you being difficult, it's just the law doing its thing.
Best for: scaling B2B and SaaS companies with a credit control team. Upflow leads on analytics, things like DSO tracking and cohort analysis, with a free entry tier and quote based paid pricing. Kolleno pitches at mid market and enterprise, from around £650 per user per month, folding in payments and reconciliation. And at the top end, enterprise platforms such as Sidetrade and HighRadius are quote based and, as a comparison by open banking firm Finexer puts it in its review of UK collections software, typically run to £2,000 a month or more. Unless you have a dedicated collections department, you don't need them.
One more tool that isn't chasing software at all: GoCardless, or any Direct Debit provider. For repeat customers, moving them onto Direct Debit largely deletes the late payment problem rather than managing it, because you pull payment on the due date instead of waiting for them to push it. Fees are a small percentage per transaction, and in my experience most business customers agree happily because it removes admin for them too. The best debt collection sequence is the one that never runs.
What about the AI powered collections platforms being marketed hard right now? Some of the prediction features, like flagging which customers are likely to pay late so you can chase early, are genuinely useful. But be careful with anything that generates the actual customer facing messages on the fly. In collections, you want every word a customer receives to be a word you approved. Predictability is a compliance asset and a relationship asset. Let the machine decide when and to whom; you decide what it says.
The Mistakes That Actually Destroy Relationships
Having set plenty of these systems up, here's my honest list of where the damage really comes from, in rough order of frequency.
Chasing paid or disputed invoices. This is the number one trust destroyer and it's almost always an integration problem: the tool isn't syncing with the accounts package often enough, or nobody paused the workflow when a query came in. Check the sync frequency before buying, and train everyone who talks to customers to hit the pause button the moment an invoice is questioned.
Escalating tone too quickly. If message two already reads like a solicitor wrote it, you've spent your firmness before you needed it and offended the majority who were simply slow. Save the formal register for week four onwards.
Charging statutory interest reflexively. You have the right to 8 per cent over base plus compensation on every late business invoice. Exercising that right on a good customer who paid five days late is legally sound and commercially daft. My rule: mention the entitlement in late stage reminders, apply it only to chronic offenders and accounts you'd be content to lose.
Ignoring signs of difficulty. When a customer says "we're struggling this month," the automated sequence must stop and a human must take over, in every case. For consumer debt this is a regulatory requirement; guides such as Shergroup's on handling vulnerable customers in collections set out how CONC requires fair treatment and forbearance. But even in pure B2B, offering a realistic payment plan to a struggling customer converts a potential bad debt into loyalty that outlasts the rough patch. I've seen customers become vocal advocates for suppliers who were decent to them in a bad quarter.
Hiding behind the machine. If a customer replies to an automated chaser and gets another automated chaser, you've told them they're talking to a wall. Route replies to a person, and answer them like a person.
Chasing without checking your own house. Sometimes the invoice was wrong, sent to the wrong address, or missing the purchase order number their system needs. A surprising slice of "late payment" is the supplier's own admin. The pre due reminder catches most of this, which is another reason it's the most valuable message in the sequence.
A Setup You Could Run This Week
If you want the condensed, do it now version, here it is. Switch on your accounting package's built in reminders today with softened wording, so something is running while you decide on a proper tool. Write your five message sequence in a document, in your own voice, and get a colleague to read it as if they were a customer. Pick one tool to trial, and almost all of the SME ones offer free trials, judging it on three things: how deeply it syncs with your accounts package, whether it supports different workflows for different customer groups, and how fast you can pause a sequence. Move your top ten repeat customers onto Direct Debit. And put one line in your onboarding email for new customers explaining exactly when invoices go out, when they're due, and that reminders are automatic. Customers who know the chase is systematic never take it personally. That last sentence is half this article in miniature.
Then measure. The number to watch is debtor days, sometimes called DSO, the average time between invoicing and getting paid. If you automate debt collection properly you should see it fall within two months, and the tool pays for itself out of the overdraft interest and chasing hours you're no longer burning. Track complaints and customer churn alongside it, because collecting faster while quietly bleeding customers is a false economy, and the whole point of doing this carefully is that you shouldn't have to choose.
When to Hand Over, and to Whom
Even with a good system, a small number of invoices will exhaust the sequence unpaid, so decide your escalation route in advance rather than in a temper. For business debts, you have three broad options after the letter before action. A commercial debt collection agency, which typically works on commission and adds a layer of pressure while keeping things out of court. A solicitor's demand letter, which costs relatively little and carries weight precisely because it signals you're prepared to litigate. Or a court claim yourself through Money Claim Online, which for undisputed debts under £10,000 on the small claims track is more straightforward than most people expect, though it costs time and a court fee, and winning a judgment isn't the same as getting paid.
Two pieces of hard won advice on this stage. First, set a threshold below which you simply write off and walk away, because chasing £150 through an agency or a court is a poor use of anyone's life, and the government's research found plenty of businesses quietly forfeit small debts for exactly this reason. Second, if you use an agency, vet how they behave, because their conduct lands on your reputation. Some of the better UK tools, Chaser among them, offer a managed route into collections so the handover keeps your records and history intact. Whatever route you choose, tell the customer clearly before you take it. The final warning, calmly delivered, collects a remarkable share of stubborn debts on its own, and it preserves the last shred of the relationship if they pay.
It's also worth saying that the relationship question changes at this stage. By the time an account has ignored five contacts over five weeks, you're no longer protecting a relationship, you're protecting your cash and your other customers, who are effectively subsidising the one who won't pay. Being clear eyed about that distinction stops businesses agonising over accounts that stopped deserving the agonising a month earlier.
An Honest Reality Check
Automation will not collect the genuinely bad debts. A customer who is insolvent, or who has decided not to pay, will sail through your beautifully worded sequence untouched, and at that point you need a decision about escalation: a debt collection agency, a solicitor's letter, or the small claims track through Money Claim Online for straightforward amounts. Automation's job is to make sure the 90 something per cent of ordinary late payers never get anywhere near that stage, and to hand you a clean, dated evidence trail for the few who do.
It also won't fix bad payment terms. If you're offering 60 day terms to customers who stretch them to 90, the fix is commercial, not technical. And it won't compensate for weak onboarding: no purchase order process, no agreed payment terms in writing, no upfront deposits on large jobs. Credit control starts before the invoice exists.
But within its lane, this is one of the highest return changes a UK business can make. The government's own research says late payment costs the economy nearly £11 billion a year and closes 14,000 businesses. The tools to push back start at free and get seriously capable at £45 to £80 a month. The law, at least for business to business debts, is firmly on your side. And done with a bit of design care, the customers you chase will respect you more for it, not less, because consistency reads as professionalism. People don't resent being reminded to pay. They resent being surprised, accused, or ignored. Automate the reminding. Keep the humanity for the moments that need it.