Should you put an unpaid invoice with a debt collection agency?

Do the free thing first

A properly formatted letter before action, sent by you, costs a stamp. It states the debt, sets a deadline and says a court claim follows. For a customer who has been quietly deprioritising you rather than refusing to pay, that letter is usually enough, and it is enough at exactly the moment an agency would also have been enough.

So the honest sequence is: three reminders, a letter before action, and only then consider an agency. Handing a debt straight to a collector because chasing is unpleasant means paying a commission for a result you could have had for free.

What the third party actually adds

The change is psychological rather than legal. A collection agency has no powers you do not have. They cannot enter premises, they cannot seize anything, and they cannot do anything to a credit file that you could not do by obtaining a judgment.

What they have is unfamiliarity and distance. A letter from a name the customer does not know reads as the matter having left your hands and entered a process, and it is answered by a different part of a business than your emails were. On a debtor who has learned to ignore you specifically, that reset is worth something real.

They also do the work. For a sole trader with several old debts, the argument is time rather than effectiveness: somebody else is making the calls while you are on site.

How they charge, and what to check before signing

The common model is no collection, no fee, with a commission taken from what is recovered. The percentage depends on the age and size of the debt, and old debts cost more because they are harder. Some firms charge a flat fee per letter instead, which can be much cheaper if a letter is all it takes.

A different model is debt purchase, where the agency buys the debt from you at a discount and keeps whatever it recovers. You get certainty and less money. It suits someone who wants the matter gone rather than someone who wants the maximum back.

• Ask for the commission rate in writing, including what happens if the debtor pays you directly after instruction.
• Ask whether the fee applies to a partial recovery or a negotiated settlement, and at what rate.
• Check whether legal action is included or charged separately. Most agencies stop at the pre-legal stage.
• Check they are authorised by the Financial Conduct Authority if the debt is owed by a consumer, since consumer debt collection is a regulated activity. Commercial debt collection is not, so authorisation is not a signal there.
• Look for Credit Services Association membership, which brings a code of practice and a complaints route.
• Read what they will actually send, and in whose name. You are responsible for your own reputation locally, and an aggressive collector on a domestic debt can cost you more than the invoice.

On a business debt, the fee may not be yours to bear

The Late Payment of Commercial Debts (Interest) Act 1998 entitles you to a fixed compensation sum per late invoice, and, where your reasonable costs of recovering the debt exceed that fixed sum, to the difference.

Collection agency fees can fall within those reasonable costs. That does not make them free, because you only get them if you recover, but it changes the arithmetic on a commercial debt considerably, and it is worth saying in the letter before you instruct anyone.

It does not apply to a debt owed by a private customer, where there is no statutory right to interest or compensation at all.

When to skip the agency and go to court

If the debt is undisputed, within the small claims limit and the customer is solvent, a county court claim you file yourself is often the better instrument. It costs a court fee you recover if you win, it needs no solicitor at that level, and it ends in something enforceable rather than in more letters.

An agency is most useful in the space before that: recent commercial debt, a customer who is avoidant rather than insolvent, and a sum where you would rather pay a commission than spend your own evenings on it.

And there is a case where neither helps. If the customer genuinely has no money, an agency will not find any, and a judgment will not create any. Work out which situation you are in before you spend anything on either.

Common questions

How much does a debt collection agency charge?

Most work on commission taken from what they recover, commonly around 5% to 15% for recent commercial debt and more for older or more difficult cases. Some charge a flat fee per letter instead, and some buy the debt outright at a discount. Always get the rate and the terms in writing before instructing anyone.

Can a debt collection agency do anything I cannot?

No. They have no powers of entry, no power to seize goods and no direct effect on a credit file. What they add is a third-party letterhead and the time they spend chasing instead of you, which on an avoidant customer is genuinely worth something.

Can I charge the collection fee to the customer?

On a business debt, potentially yes. The Late Payment of Commercial Debts (Interest) Act 1998 allows you to claim reasonable recovery costs above the fixed compensation sum, and agency fees can fall within that. There is no equivalent right on a debt owed by a private customer.

Is it better to use an agency or go to the small claims court?

If the debt is undisputed, within the small claims limit and the customer has money, filing yourself is usually better value, because the court fee is recoverable and the outcome is enforceable. An agency suits the stage before that, or a batch of debts you have no time to chase.

Will using a collection agency damage my reputation?

It can on domestic work, where the customer is a neighbour and the agency's tone is not under your control. Ask to see the letters they send and in whose name, and think harder about it on a local domestic debt than on a commercial one.

Do the maths

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