What staff turnover at an outsourcing provider costs you

Dedicated teams change. Published BPO turnover runs from 23% to over 45% a year, and every replacement resets what a provider knows about your clients.

13 October 20266 minute read

A seat or a per-job batch is staffed by a person, and that person has a turnover rate like any other job.
No industry body publishes an accounting-specific figure, but published BPO benchmarks run from 23% a year in the UK to over 45% a year offshore.
In accounting the thing a departing person takes with them is the client's file.
Asking who stays on your account, and for how long, is a fair question to put to any provider before the price.

A seat is staffed by a person

Every outsourcing contract, ours included, is a promise about a person: that a trained accountant or bookkeeper will sit on your file every month. What the price list does not say is how long that person stays in the job, and in accounting that answer matters more than the hourly rate.

Staff leave outsourcing providers at a rate that is published for business process outsourcing in general, even where no figure exists for accounting work specifically.

Published turnover rates in outsourcing

The Contact Center Association of the Philippines surveyed its members via Willis Towers Watson and reported combined voluntary and involuntary attrition of 43–45% a year at outsourced contact centres in the Philippines across 2022–23. ContactBabel's 2026 figures put the current average contact-centre turnover in the UK at 23% (benchmarks collated by Actigy, 2026). Neither figure is specific to accounting outsourcing, because no industry body publishes one for that work. Both describe the same staffing model: a pool of people rostered onto client work, with no individual held to one account for years by default.

A provider that runs on that model is not doing anything wrong. It is simply the shape of the industry it sits in, and the figures are a reason to ask any provider, including us, what its own number is. Do not assume the work is exempt from it.

What a reset costs

Take an illustrative example, the kind of file any accounts preparer recognises. A client runs a small company with a director's loan account that moves every month: drawings in March, a repayment in June, a benefit-in-kind adjustment at the year end. The first time a preparer opens that file there are questions — what the March transfer was for, why the loan swings overdrawn in July, how the practice wants the note worded. Answering them takes the better part of a day. A preparer who stays on the file does not ask them again: the second year's set takes about two hours, because the questions are already answered.

Now change one fact. The preparer who learned the file in year one has left by year two — close to an even chance within twelve months, on the published offshore figures above. A different person opens the file cold. The March transfer is a question again. The loan swinging overdrawn is a question again. This time the review partner answers the questions, because the new preparer has no reason yet to know the client's pattern.

The job did not get harder. The person who learned it is no longer the one doing it, and the practice pays the learning cost a second time.

What to ask before you sign

Ask for the person's name. A role title without a name means no one specific has been assigned yet.
Ask who employs them. A direct employee of the provider's own office carries a different turnover risk than a freelancer on a platform or staff supplied by a third party.
Ask what happens when that person leaves or takes leave, and who covers the weeks a replacement needs to learn the client's files.
Ask how long the current team has held their roles, and how the provider tracks that number.

The full list of questions, including what to ask about qualifications and review, is in how to choose an outsourced accounts production provider.

The same person every month

A Muckin seat is one named person in one role — an Accounts seat or a Production seat — employed in our own Pretoria office, with accounts and tax work reviewed by our own UK practice before it reaches you. Notice runs one month on either side. If a seat holder does leave, we find and train their replacement at our cost. The handover is contained to that one seat on your account; it does not touch any other practice's work. How it works covers the loop a seat sits inside.

That does not remove the risk that a person might leave a job. It changes who manages the handover, and the practice is told about it before it reaches a client.

Where to start

Put your volumes into the capacity calculator to see what a seat would cost against what you are paying now, and talk to us about who would hold it.

Published 13 October 2026. Tax rules and rates change, so check current figures on gov.uk before relying on anything here. This is general information for practice owners and is not advice.

Questions

How much staff turnover is normal at an outsourcing provider?

There is no published figure for accounting outsourcing specifically. The closest published numbers come from business process outsourcing generally: the Contact Center Association of the Philippines, surveyed via Willis Towers Watson, reported combined voluntary and involuntary attrition of 43 to 45% a year at outsourced contact centres in the Philippines across 2022 to 2023, and ContactBabel's 2026 data puts average UK contact-centre turnover at 23%. Neither figure describes accounting work directly, but both describe the staffing model that offshore and nearshore providers commonly use, where a pool of staff is rostered across client work. Ask a provider for its own figure before assuming an industry average applies to it.

Why does staff turnover matter more in accounting than in other outsourced work?

Because the thing a preparer learns about your client is the product itself: the chart of accounts, the director's loan pattern, how your practice likes a disclosure note worded. In a call centre, a new agent can read from the same script the departing one used. In accounting, none of that working knowledge is written down anywhere a replacement can read it, so the questions get asked again from the start, and the cost of answering them again falls on your practice.

What happens at Muckin if a seat holder leaves?

The seat is a named person employed in our own Pretoria office, with accounts and tax work reviewed by our own UK practice. If that person leaves, we handle the handover for that one seat; it does not cascade into a shift of work across other accounts. Notice on a seat runs one month either side, so the practice has a month's warning before anything changes, and we brief the new person on the client's file before they pick up any of it.

Does hiring someone ourselves remove this risk?

Only partly. UK accountancy and bookkeeping roles turn over as well, and recruiting, training and losing an in-house hire carries its own published costs, covered in what the recruitment treadmill costs a practice. What changes with a seat is who carries the gap when someone leaves. A seat is one named person whose continuation is part of what you are buying, and the cost of finding and training a replacement sits with us, not with your practice's own recruiting budget.

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