TL;DR:
- Accounting outsourcing for UK practices is priced across three main models: managed FTE, per job, and ad hoc, each suited to a different volume profile and budget structure.
- Managed FTE gives you a dedicated offshore resource on a monthly retainer and works best for practices with steady, predictable workload across bookkeeping, VAT, payroll and management accounts.
- Per job pricing charges a fixed fee per completed engagement and suits practices with variable volume, seasonal overflow or one-off project work without long-term commitment.
- Ad hoc pricing is hourly or task-based, offers maximum flexibility, and works well for emergency cover or testing outsourcing for the first time.
- The wrong model does not just cost more per unit of work, it creates hidden costs including rework, onboarding repetition, and planning inefficiency that add up quickly.
- Practice owners should choose a pricing model based on their actual workflow volume, not on which option has the lowest headline rate.
Last reviewed: May 2026. All pricing references reflect typical market ranges for UK accounting outsourcing at the time of writing. Confirm specific figures directly with any provider before committing.
Introduction: The First Question Every Practice Owner Asks
The first question almost every UK practice owner asks when they start exploring accounting outsourcing is: how much does it cost? That is a completely reasonable starting point. But it is also the question most likely to lead to a poor decision if it gets answered in isolation.
Pricing matters. But pricing only makes sense in the context of the model behind it. A managed FTE arrangement priced at a monthly retainer looks expensive compared to a per job quote for the same task until you account for dedicated availability, institutional knowledge, onboarding time and the ability to absorb volume without renegotiating every month. A per job rate that looks cheap per return can become unmanageable at scale. An ad hoc hourly rate can feel affordable until you realise it comes with no guaranteed turnaround and a resource who does not know your practice.
This guide is written for UK practice owners, practice managers and senior partners who want to understand the pricing models available, not just the headline numbers. It covers how managed FTE, per job and ad hoc pricing each work, what they cost in practice, which one suits which type of firm, and how to spot the hidden costs that appear when you pick the wrong model.
This is a different conversation from what it costs to outsource bookkeeping, payroll or year-end accounts for an individual client. If you want service-specific cost breakdowns for those functions, the outsourced bookkeeping costs guide, the payroll outsourcing costs breakdown and the complete accounts outsourcing guide cover those in full. This guide is about the model selection decision for the practice itself.
The Three Main Pricing Models for Accounting Outsourcing
There are three pricing models used across the UK accounting outsourcing market. They are not interchangeable. Each one is built around a different assumption about how work flows through a practice.
The first is managed FTE, where you pay a monthly retainer for a dedicated offshore resource assigned exclusively to your practice. The second is per job pricing, where you pay a fixed fee for each completed engagement or task. The third is ad hoc pricing, where you pay an hourly rate or a small fixed fee for on-demand support with specific tasks.
Most practices that have been outsourcing for more than 12 months use a combination of models, usually a managed FTE base for predictable recurring work and per job or ad hoc support for seasonal peaks and one-off needs. But choosing where to start, and when to move between models, requires a clear understanding of what each one involves.
ICAEW’s guidance on outsourcing, offshoring and podsourcing frames the structural choice well: the model must fit the firm before the economics make sense. AccountingWEB’s ultimate guide to outsourcing for UK accountants similarly notes that pricing model clarity is one of the key differences between successful and unsuccessful outsourcing arrangements.
Managed FTE: What It Is, When It Works and What It Costs
Managed FTE stands for managed full-time equivalent. In practice it means a dedicated offshore professional, or team of professionals, assigned exclusively to your practice on a monthly basis. They work on your clients, follow your workflows, use your software, and build familiarity with your practice over time.
This is the model that makes the most sense for practices with a consistent, predictable flow of work. If you have ongoing bookkeeping for 20 to 40 clients, monthly management accounts production, regular VAT returns and a year-end accounts queue that fills up between October and March, a managed FTE gives you a reliable delivery layer that improves with time as the resource learns your client base.
What is managed FTE pricing in accounting outsourcing? It is typically structured as a fixed monthly retainer per FTE, billed regardless of exact hours in that month. This is intentional. The value of a managed FTE is not just in the hours delivered but in the availability, continuity and institutional knowledge it builds. You are not paying for time alone. You are paying for a dedicated professional who will be there on Monday morning when a client sends through a query and who already knows the client’s file.
Typical monthly managed FTE costs in the UK accounting outsourcing market vary depending on the seniority of the resource, the scope of the work and the provider’s operating model. Entry-level bookkeeping FTEs can start from around £1,200 to £1,800 per month. Qualified accountancy-grade FTEs with broader scope across accounts preparation, tax, and management reporting typically range from around £1,800 to £2,800 per month at quality providers. Senior or specialist-level resources sit higher than this. These are market-range figures; confirm specific current rates with any provider before making a budget decision.
For comparison, recruiting an in-house junior accountant in the UK with a salary of £28,000 to £35,000 plus employer NIC of around 13.8%, pension contributions, office space and training costs equates to a total employment cost of £33,000 to £42,000 per year, or roughly £2,750 to £3,500 per month, before accounting for sick leave, annual leave and the risk of turnover. A managed FTE from a quality outsourcing provider typically comes in below this range while covering similar functional output, which is why the model tends to make economic sense for practices that have enough volume to justify a dedicated resource.
The managed FTE model suits: regular bookkeeping and bank reconciliation, monthly management accounts, VAT compliance and filing, payroll processing and year-end preparation. For more detail on how this maps to specific service costs, the outsourced bookkeeping costs guide and payroll outsourcing costs breakdown go deeper on those functions.
Is managed FTE cheaper than per job pricing for accounting work? The answer depends on volume. At low volumes, per job pricing can be cheaper per unit. At medium to high volumes, managed FTE typically costs significantly less per unit of work because the resource is always available and the monthly cost does not increase when the work volume rises within normal capacity. Practices with 30 or more active monthly clients usually find managed FTE more cost-effective than per job pricing over a full year.
The main limitation of managed FTE is minimum commitment. Most providers require a minimum engagement of three to six months, and the retainer is payable whether or not the volume fills the full capacity of the FTE every week. If you have a highly variable client mix, a small client base or genuine uncertainty about forward work levels, this can feel like a risk. That is where per job pricing may be more appropriate.
Per Job Pricing: What It Is, When It Works and What It Costs
Per job pricing is exactly what the name suggests. You send a piece of work and you pay a fixed fee when it is completed. There is no retainer, no minimum commitment and no monthly cost if no work is sent.
What is per job pricing for accounting outsourcing? It is a transactional model where each engagement has a defined scope and a fixed price. A set of annual accounts for a limited company with a certain turnover is priced at a fixed fee. A VAT return for a quarterly filer is priced at a fixed fee. A payroll run for a defined number of employees is priced at a fixed fee. The price may vary by complexity but it is agreed before the work starts, not billed by time afterwards.
This model works well for practices that have variable client volumes, are building their outsourcing confidence for the first time, deal with significant seasonal variation, or need overflow support at peak periods without wanting to increase their fixed cost base year-round. AccountingWEB’s analysis of how UK accountants use outsourcing to transform customer service specifically highlights flexible, transactional outsourcing as the preferred entry point for smaller practices.
Typical per job prices in the UK market vary widely depending on complexity, seniority required and provider structure. As indicative market ranges only, a basic set of micro-entity accounts might be priced between £60 and £120. A full set of limited company year-end accounts with supporting tax computations might range from £120 to £300 depending on turnover and complexity. A standard quarterly VAT return might range from £25 to £60. A monthly payroll run for up to 10 employees might range from £20 to £50. These are market-range estimates; confirm with any provider before use.
The limitation of per job pricing at scale is that the per-unit cost does not fall as volume increases. If you are consistently sending 30 to 50 sets of accounts per month, you are likely paying more in aggregate than you would under a managed FTE arrangement. The resource is also not dedicated to your practice, which means each new job may involve some re-familiarisation with client files, slowing turnaround relative to a dedicated FTE who already knows the client.
The per job model also tends to create more administrative friction at volume, because each job has to be individually scoped, priced and tracked. For practices with efficient workflows and moderate volumes, this is manageable. For practices trying to scale quickly or standardise delivery, the overhead of managing 50 or 100 separate per-job engagements per month can become a problem in itself.
For practices interested in how Xero and QuickBooks integrations with an outsourcing partner can help manage per job workflow at scale, that guide explains the tools and processes that make transactional outsourcing more efficient in practice.
Ad Hoc Pricing: What It Is, When It Works and What It Costs
Ad hoc pricing is the most flexible and the most expensive per unit of the three models. You pay an hourly rate or a small fixed fee for on-demand support, usually for a specific task or a short-term need that does not fit neatly into either a retainer or a fixed-price engagement.
What is ad hoc pricing for accounting outsourcing? It is support provided on request, without a pre-agreed scope of ongoing work or a minimum volume commitment. A practice might use ad hoc outsourcing to cover a member of staff on leave, to handle an unexpected surge in client requests during January or April, to deal with a one-off client query that needs specialist input, or to test outsourcing as a concept before committing to a more structured model.
Typical ad hoc rates in the UK market range from around £15 to £35 per hour for bookkeeping-level support and from £25 to £60 per hour for more qualified accounts or tax-level work, again depending on seniority, provider and scope. The premium over managed FTE reflects the provider’s inability to guarantee this resource is being used efficiently, the shorter notice period and the lack of long-term commitment.
The strongest case for ad hoc pricing is the low barrier to entry. It allows a practice to experience outsourcing in a live environment before making a structural decision. It does not require a process overhaul, a long onboarding exercise or a forecast of monthly volumes. The limitation is that resource availability cannot be guaranteed and turnaround times for urgent ad hoc requests are less predictable than under a managed FTE arrangement.
Which outsourcing pricing model is best for a small UK accounting practice just starting with outsourcing? For most practices starting out, ad hoc provides the lowest commitment risk. It is a reasonable way to test quality, understand how files need to be prepared for handover and get a feel for the provider’s communication style before committing to a managed FTE retainer or per job volume contract.
How to Choose the Right Model for Your Practice
The right model is not the one with the lowest headline rate. It is the one that matches how work actually flows through your practice.
Start by mapping your current workload across three dimensions: volume, predictability and seasonality. If you have a consistent monthly workload across 20 or more active clients, managed FTE will almost certainly be more cost-effective and more operationally reliable than either per job or ad hoc pricing. If your workload is variable and concentrated around year-end, per job gives you better cost control through the quiet months while still delivering at peak. If you are genuinely uncertain about volume or are exploring outsourcing for the first time, ad hoc lets you test the model without a structural commitment.
How do I budget for accounting outsourcing in my practice? The standard approach is to calculate the total staff cost of the work you want to outsource, including salary, employer NIC, pension, office allocation and management time, and then compare it to the total projected cost of the relevant outsourcing model at the volume you actually produce. For practices that have not done this calculation before, the accounting outsourcing guide for UK accounting firms is a useful starting point.
As a rough guide, most practices looking to outsource the equivalent of one full-time junior accountant find that managed FTE pricing represents around 40% to 60% of the total employment cost of that role in the UK, depending on provider quality and scope. The saving is real but it is not the only reason to outsource. Capacity, delivery quality and the ability to scale without repeated recruitment are often equally significant drivers, particularly given the accountancy talent crisis and recruitment headaches many UK practices are currently experiencing.
Can I switch from one outsourcing pricing model to another? Most providers allow model transitions, though managed FTE arrangements typically have a minimum notice period for termination or restructure. The practical advice is to start with the model that fits your current state, not the model you are hoping to grow into. If your volume is currently variable, starting on per job and transitioning to managed FTE when volume stabilises is a more reliable path than committing to a retainer before you have consistent throughput to fill it.
Practices comparing offshore and onshore options as part of this decision may also find value in the offshore versus onshore accounting comparison, which covers the cost, quality and security considerations alongside the structural pricing question.
Hidden Costs That Appear When You Pick the Wrong Model
The pricing model you choose has a direct effect on costs you will not see in the headline rate. These hidden costs are often what makes an apparently cheap option more expensive in practice.
The most common hidden cost of the wrong model is onboarding repetition. Under a per job model, each new job sent to a provider who does not know your practice requires some level of file familiarisation. At low volumes this is a minor inconvenience. At scale it creates slow turnaround, rework and a need for your own staff to spend time briefing and reviewing that offsets the cost saving of the outsourcing itself.
The second hidden cost is scope drift. Ad hoc arrangements without a clearly defined scope tend to expand. A task quoted at two hours takes four because the brief was unclear or the file was incomplete. A quick query becomes a complex engagement. Without the discipline of a structured model, ad hoc work can cost significantly more per engagement than a per job or managed FTE arrangement for equivalent output.
The third hidden cost is management overhead. Practice owners and managers consistently underestimate the time they spend coordinating outsourced work when the model does not fit the workflow. Managing 60 separate per job engagements per month, each with its own brief, review cycle and sign-off, can consume more internal time than the saving justifies. What are the hidden costs of accounting outsourcing? In most practices that have chosen the wrong model, they sit in management time, rework and planning inefficiency rather than in the invoice itself.
The fourth is compliance and security risk. A poorly structured ad hoc arrangement without clear data handling protocols and GDPR compliance creates exposure that a formal managed FTE or per job contract typically does not. HMRC’s guidance on data protection obligations is relevant here, and checking for GDPR and security red flags in an outsourced accounting provider before committing to any model is a step many practice owners skip at the beginning.
The fifth is the cost of the wrong year-end decision. Practices that rely on ad hoc or per job support for year-end accounts without having tested the provider’s quality during quieter months can find themselves with poor-quality output during the busiest part of the year. The guide to solving year-end accounting bottlenecks with outsourcing explains how to structure outsourcing relationships so year-end delivery does not become a crisis.
How Acenteus Accounting Structures Pricing for UK Accounting Practices
Acenteus Accounting offers all three pricing models to UK accounting practices. This is not a standard position in the market. Many providers push a single model, usually managed FTE, because it produces predictable revenue for the provider. Acenteus structures its offer around the practice’s workflow profile rather than its own revenue preference.
For practices exploring outsourcing for accountants in the UK for the first time, Acenteus typically recommends starting with a scoped pilot before committing to a model. The pilot allows the practice to test delivery quality, file preparation requirements and communication style in a live environment before making a structural pricing decision.
Acenteus Accounting’s pricing, as of 2026, is structured as follows. Please note that the figures below are indicative and should be confirmed directly with Acenteus before budget planning, as scope and seniority affect the final rate.
For managed FTE, Acenteus offers dedicated offshore professionals at a monthly retainer. Entry-level managed FTEs covering bookkeeping, bank reconciliation and basic VAT work are priced from approximately £1,400 per month. Qualified accountancy-grade FTEs covering management accounts, year-end preparation, tax computations and broader scope are priced from approximately £1,800 to £2,400 per month depending on seniority and scope. Senior resources above this range are available for complex or specialist work.
For per job pricing, Acenteus prices each engagement at a fixed fee agreed before work commences. Year-end limited company accounts are priced based on turnover and complexity. VAT returns, payroll runs and management accounts packs are each priced as individual jobs. Practices send work through a structured handover process with defined turnaround times, and Acenteus confirms pricing before each job is accepted.
For ad hoc support, Acenteus offers hourly support for specific short-term tasks, cover requirements and one-off queries. Hourly rates vary by seniority and are confirmed before work begins.
What is included in each model? Managed FTE includes dedicated professional allocation, quality control review, UK accountancy supervisory oversight, integration with your practice’s software stack, defined communication standards and an onboarding process that typically takes four to six weeks to full operational flow. Per job includes defined scope, fixed price, turnaround guarantee, quality review before delivery and structured file handover. Ad hoc includes task-level briefing, confirmed rate and best-effort turnaround based on resource availability.
What is excluded? Managed FTE does not include work outside the agreed scope without a scope review. Per job does not include scope changes mid-engagement without repricing. Ad hoc does not include guaranteed availability or defined turnaround commitments.
Where Acenteus fits in the market: it is not positioned as the cheapest provider in the UK accounting outsourcing market. Rates sit in the mid to upper range for offshore delivery, reflecting the UK accountancy supervisory model, the GDPR-compliant operating structure, and the focus on practices for whom quality and reliability matter more than price alone. For a fuller picture of what accounting outsourcing for UK accounting firms looks like in practice, the overview covers scope, workflow and engagement structure in more detail.
Practices that want to understand the broader service offer before discussing pricing can also start at the Acenteus Accounting homepage or review the tax compliance outsourcing overview and VAT compliance outsourcing guide for more context on how specific services are delivered.
Making Tax Digital is also relevant to model selection. As HMRC continues to roll out the future of Making Tax Digital, the volume of quarterly digital filings across a client base increases. That additional recurring volume often pushes practices from per job toward managed FTE as the more economical model.
Conclusion: The Right Model Scales With Your Practice
Accounting outsourcing pricing is not a single number. It is a model decision that either scales with your practice or creates friction as your client base grows. Practices that get the model right from the beginning find that outsourcing becomes a reliable delivery layer. Practices that pick the wrong model often find that the cost saving on paper disappears in management overhead, rework and misaligned expectations.
Start with volume and predictability. If both are consistent, managed FTE is almost always the right starting point. If volume is variable, start with per job. If you are not sure, use ad hoc to test the arrangement before committing. And review the model at least once a year as your client base and workflow patterns change.
The complete accounts outsourcing service guide and the broader accounting services for small businesses overview are also useful complements to this guide for practices building out their full outsourcing strategy.
Frequently Asked Questions (FAQ)
It depends on the model. Managed FTE typically runs from £1,400 to £2,800 per month per resource. Per job rates vary by task. Ad hoc support is typically £15 to £60 per hour depending on seniority.
Managed FTE is a monthly retainer for a dedicated resource. Per job is a fixed fee per completed engagement. FTE suits steady volume; per job suits variable or seasonal workloads.
Ad hoc or per job is usually the best starting point. Low commitment, easy to test quality, and allows volume to build before committing to a monthly retainer.
Most providers allow transitions with notice. Confirm minimum commitment terms upfront. Starting on per job and transitioning to FTE when volume stabilises is a common and sensible path.
Yes, in most cases. A UK junior accountant costs £33,000 to £42,000 all-in annually. A quality managed FTE typically costs £16,800 to £28,800 per year, covering similar functional output.
Management time, onboarding repetition, scope drift, rework, and compliance gaps are the main hidden costs. They usually appear when the pricing model does not match the practice's actual workflow pattern.
A managed FTE arrangement typically reaches full operational flow within four to six weeks. A job can start within days. Ad hoc support can begin almost immediately for straightforward tasks.
Acenteus typically recommends a scoped pilot before any model commitment. This allows the practice to test quality, file preparation and communication in a live environment before deciding on structure.
Included: dedicated resource, quality review, UK supervisory oversight, software integration, and structured onboarding. Excluded: work outside the agreed scope without a formal scope review and repricing.
Most UK practices budget outsourcing at 8% to 15% of gross fee income, depending on service mix and growth ambitions. Start by calculating the employment cost of the work you want to transfer.
