Debt collection agency, DIY, or automation? Recovering unpaid invoices compared

By the time most freelancers start googling debt collection agencies, the invoice is months old and the cheaper options have quietly expired. This guide compares what actually works at each stage — chasing it yourself, instructing an agency, going legal, or automating the whole thing — with honest numbers for each.

The uncomfortable truth first

Searches for "debt collection agency" spike when an invoice hits three or four months overdue. By that point, the debt has usually been chased twice, half-heartedly, with long silences in between — and the steps that would have recovered it cheaply and early were skipped. That's not a criticism; chasing money is miserable, and most freelancers avoid it for entirely human reasons.

But it matters, because the older a debt gets, the harder and more expensive it is to recover. Credit-control professionals consistently report that collectability falls away sharply once an invoice passes 90 days overdue, and keeps falling from there. The right question isn't really "which agency should I use?" — it's "which option fits the age and state of this particular debt?" Here are the four real options.

Option 1: Chase it yourself (DIY)

Free in cash terms, and genuinely effective in the first month or two. A structured sequence of reminders — polite at first, then firm, citing the Late Payment Act and adding statutory interest at 11.75% p.a. plus the fixed recovery sum — recovers the large majority of late invoices without any third party getting involved. The full sequence is in our chasing playbook.

The cost is time and emotional energy, and that's where DIY usually breaks down. Chasing works through consistency: a reminder every few days, each one escalating slightly, until paying becomes easier than not paying. In practice most people chase inconsistently — a flurry of emails, then three weeks of awkward silence, then an angry one. Inconsistent chasing teaches the client that ignoring you works.

If you can chase on a fixed schedule and hold your nerve, DIY is the cheapest option there is. If you know yourself well enough to know you won't, plan for that honestly — it's the most common reason debts age into agency territory.

Option 2: A debt collection agency

A commercial debt collection agency takes over the chasing for you: letters on their letterhead, phone calls, and persistence from people who do this all day. The involvement of a third party has real psychological weight — debtors who've ignored you for months often pay an agency's first letter.

What they charge

Most work on a no-win-no-fee commission — typically around 8–20% of the sums they recover, though quotes range from roughly 5% for large, recent debts to 25% or more for old, small, or messy ones. Some charge fixed fees instead, particularly for single-letter services. Read the contract carefully: "no win, no fee" sometimes sits alongside admin, instruction, or tracing charges that apply regardless of outcome.

What they can — and can't — do

This is the part the industry doesn't advertise: a debt collection agency has no special legal powers. They cannot enter premises, seize goods, or compel payment. They write letters and make phone calls — exactly what you can do, done more persistently and with more practised pressure. If the debtor simply refuses, the escalation path still ends at court, where the agency needs a judgment just like you would. What you're buying is persistence, experience, and distance — which is often worth paying for, but it isn't enforcement.

When an agency genuinely makes sense

  • Old debts (90+ days) where your own chasing has been exhausted
  • A debtor who's gone completely quiet — agencies can trace companies and directors who've moved on
  • You can't face the conflict — outsourcing the confrontation is a legitimate reason
  • Multiple debtors at once — if late payment is a pattern across your client base, an agency (or a credit-control process) scales better than your evenings

Red flags when choosing one

  • Upfront fees for "instruction" or "registration" before any work happens — reputable commercial agencies earn from recovery
  • Pressure tactics — threats of bailiffs without a judgment, contacting your client's customers, or anything that could rebound on your own reputation
  • No accreditation. For consumer debts, FCA authorisation is essential. B2B collection is lighter-touch regulated, so look instead for Credit Services Association (CSA) membership or staff accredited by the Chartered Institute of Credit Management (CICM) — both bind members to a code of practice
  • Vague answers about disputed debts. A serious agency will ask whether the debt is disputed before quoting; one that doesn't care is planning to bludgeon, not collect

Option 3: A solicitor's letter, then court

A formal Letter Before Action is the required pre-court step anyway, and you can buy it cheaply: fixed-fee LBA services run from around £5–£50 for a template letter on legal letterhead, up to a few hundred pounds for one drafted and signed by a solicitors' firm. For many debtors, a letter from a law firm lands harder than one from a collection agency — it signals court is genuinely next.

If the letter expires unanswered, Money Claim Online handles straightforward debts under £10,000 for a modest issue fee, and undefended B2B invoice claims succeed at a very high rate. The combination of fixed-fee LBA plus MCOL is usually cheaper than an agency commission on anything over about £1,000 — provided the debt isn't disputed and the debtor is still solvent and findable.

Option 4: Automate the chase before it gets that far

The fourth option isn't really an alternative to an agency — it's what makes agencies unnecessary. Automated chasing tools (Hielda is one) run the entire DIY sequence on a fixed schedule: reminders before the due date, a firm chase the day after, statutory interest at 11.75% p.a. and the fixed recovery sum applied automatically from day one, and steady escalation through to a Letter Before Action — without you drafting a single email or having to feel anything about it.

The honest way to frame it: automation is prevention; agencies are cure. An agency earns its 8–20% rescuing debts that have already aged past the point where polite pressure works. Automation exists to stop invoices reaching that point — and because collectability drops steeply after 90 days, a chase that starts on day one is operating when recovery odds are at their highest. It also fixes the discipline problem from Option 1: the schedule holds whether or not you're dreading the conversation.

Automation won't recover a two-year-old debt from a dissolved company, and it won't trace a debtor who's vanished. For those, you genuinely need an agency or a solicitor. Its job is to make sure your next invoice never becomes that debt.

The options side by side

Cost, speed, and trade-offs at a glance

OptionCostBest forSpeedRelationship impactLegal power
DIY chasingFree (your time)Invoices under ~60 days lateFast if consistentLow, if professionalNone — court is the backstop
Collection agencyTypically 8–20% of recovered sumOld, quiet, or multiple debtsWeeks to monthsHigh — usually ends itNone — letters and calls only
Solicitor / MCOL~£5–£300 letter, plus court feeClear debts, debtor solvent14-day LBA window, then weeksHighReal — ends in a judgment
AutomationFlat subscriptionEvery invoice, from day oneImmediate and continuousLow — reads as accounts adminStatutory charges under the Act

Agency commission ranges and letter fees are typical market figures and vary by provider, debt age, and value — always confirm before instructing.

The decision in one paragraph

Under 30 days late: chase it yourself on a fixed schedule, or automate it — an agency at this stage is paying 8–20% for emails you could send for free. 30–90 days late: send a Letter Before Action, wait out the 14 days, then issue through Money Claim Online; for clean debts this is faster and cheaper than commission. 90+ days late, or the debtor has gone evasive: now an agency earns its fee — or be honest with yourself about writing it off and tightening terms for next time. Disputed work: resolve the dispute first, in writing, whatever its age — no reputable agency will take a disputed debt, and a court will want to see you tried. And whichever route this invoice takes, set up your next invoice so it never gets here: statutory interest and the fixed sum applied from the first overdue day, on a schedule that doesn't depend on your willpower.

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