Why contractor accountant fees deserve more than a quick price check

When a contractor first goes looking for an accountant, the instinct is often to compare monthly fees and pick the lowest number that looks credible. That approach is understandable, but it misses most of what matters. The fee is not the cost. The cost is what you pay plus what you lose through missed planning, compliance gaps, and advice that is not there when you need it.

This guide sets out what the public UK market charges for contractor accountancy in 2026, what drives those figures, what a complete service should include, and why the difference between a specialist and a generalist matters more now than it did a few years ago. All figures are editorial observations about the market as a whole. They are ranges and benchmarks, not quotes from any specific provider, and they should not be read as such.

If you are at the earlier stage of deciding whether to use a specialist at all, or comparing a specialist contractor accountant with a general practice firm, the guide how to choose a contractor accountant covers that decision in full. This page is focused on the cost side of that conversation.

What the public UK market charges: the headline range

Market research on publicly advertised contractor accountancy packages in 2026 shows a broad range with most standard limited-company packages sitting between roughly £60 and £150 per month. That bracket covers the majority of the market by volume, though it does not reflect the full spectrum: some providers operate below it with stripped-back digital-only packages, and specialist or high-complexity services sit above it.

These are market observations, not a precise survey, and the range is wide enough that the headline figure tells you relatively little on its own. Two packages priced identically at £95 per month can represent very different services depending on what is included, what is charged as an add-on, and the depth of expertise behind the price. The sections below explain what drives the variation.

One consistent finding from the market is that the cheapest packages almost always exclude something material: typically the director's personal self assessment return, VAT returns, or any substantive IR35 advice. When those are added back as extras, the effective cost often moves to the mid-range anyway, but without the joined-up service that comes from a specialist handling everything together.

What drives the price

The scope of services included in the package

A limited-company contractor running a personal service company (PSC) has a set of recurring compliance obligations that do not change year to year. These include: Companies House annual return and statutory accounts, corporation tax return and payment management, monthly payroll for the director's salary, dividend administration and records, VAT registration and quarterly returns (usually standard-rated at 20%), and the director's personal self assessment return covering the salary and dividend income.

A package that includes all of these in the headline fee is a materially different product from one where the self assessment return or VAT work is a separately invoiced extra. Before comparing prices, list the specific services you need and check explicitly whether each is in or out of the quoted fee. The monthly figure means very little without that check.

IR35 expertise and the depth of status advice

IR35 is the single most commercially significant tax risk for most contractors, and it is also the area where the gap between a specialist and a generalist accountant is widest. The intermediaries legislation sits across two chapters of ITEPA 2003 with meaningfully different rules: under Chapter 8 (which applies where the end client is small or overseas), the PSC self-assesses status; under Chapter 10 (medium and large clients since April 2021), the client issues the Status Determination Statement and the fee-payer operates PAYE and NIC. Getting this wrong in either direction has significant financial consequences.

A contractor accountant who works exclusively with contractors will typically be more current on the status tests, the SDS disagreement process (the client has 45 days to respond to a challenge), the impact of recent case law including PGMOL v HMRC [2024] UKSC 29, and the practical steps to protect an outside IR35 position. That expertise costs more than generic bookkeeping, and the premium reflects a genuine capability difference. For more on the IR35 status tests themselves and how a contract review fits into the picture, see our IR35 review service.

The salary, dividend and pension planning layer

Beyond compliance, the real value of a specialist contractor accountant is in the ongoing planning conversation. For a PSC director in 2026/27, the salary and dividend interplay has become more complex. The dividend ordinary rate rose to 10.75% and the upper rate to 35.75% from 6 April 2026 (Finance Act 2026 s.4), narrowing the incorporation advantage slightly, but the PSC structure still offers meaningful extraction flexibility. The right salary level turns on Employment Allowance eligibility: a single-director company without other employees cannot claim the £10,500 Employment Allowance, so the employer NIC calculation at 15% above the secondary threshold of £5,000 is a real consideration when setting the salary target between the secondary threshold and the lower earnings limit of £6,708.

More significantly, the employer pension contribution from the PSC remains the contractor's most powerful tax lever: it is deductible against corporation tax, attracts no employer or employee NIC, and is not taxed on the director as income when paid in, subject to the £60,000 annual allowance for 2026/27. A missed pension conversation with a generalist accountant can cost materially more than the difference in monthly fee between them and a specialist. The how to choose a contractor accountant guide covers this planning layer in more detail.

Software, cloud tools and administrative infrastructure

Most professional contractor accountancy packages include access to accounting software (typically Xero, QuickBooks or FreeAgent), a client portal for uploading receipts and documents, and a payroll platform. These are not free to the accountant: software licences, maintaining integrations and providing genuine client-facing tooling represent a real cost that feeds into the monthly fee. A very low-fee provider is often providing less infrastructure and expecting the client to do more of the administrative work themselves.

For a contractor who values simplicity and low involvement in the admin side, this is a meaningful part of the service. For a contractor who is comfortable managing their own records and wants a lighter touch, the tradeoff shifts. Either way, ask what software is included and whether the portal keeps everything needed for a PAYE or corporation tax enquiry in one auditable place.

Contractor-only focus versus general practice

A firm that works exclusively with UK contractors is not simply a marketing positioning choice; it reflects a real difference in what the adviser knows, how current their knowledge is, and how much of their working day is spent on exactly the problems you bring to them. An accountant handling a mix of SME accounts, property investors, construction CIS returns and a handful of contractors alongside is managing a much broader knowledge base, and contractor-specific issues (the IR35 chapter distinction, the SDS disagreement process, the MSC risk for contractors who change accountant, the treatment of inside-IR35 income at the fee-payer level) are a smaller proportion of their daily work.

The contractor-only market commands a modest premium over generalist practices partly because of this specialism, partly because the client base has high average revenue per client (typical day rates create higher turnover than most SMEs), and partly because the IR35 and tax-planning work is genuinely more complex per hour than standard SME bookkeeping.

The full picture: what a complete contractor accountancy package looks like

The following is a checklist of what a complete service for a PSC contractor should cover. Use it when evaluating any package, regardless of the fee level, to identify what is and is not included before a comparison is meaningful:

  • Company formation and initial Companies House registration (for new contractors) or onboarding support (for those switching).
  • Registered office address provision (required if you do not want your home address on the public register).
  • Year-end statutory accounts preparation and filing at Companies House and HMRC.
  • Corporation tax return (CT600) preparation, submission and payment scheduling.
  • Monthly payroll processing for the director's salary, including RTI submissions to HMRC.
  • Dividend paperwork: board minutes, dividend vouchers, dividend advice on the optimal amount and timing.
  • VAT registration, quarterly VAT return preparation and submission (most contractors are on standard-rated 20% VAT; the Flat Rate Scheme decision should be discussed and modelled, not assumed).
  • The director's personal self assessment tax return, covering employment income, dividends, savings and any other personal income streams.
  • Access to an adviser for IR35 questions: at minimum, an informed view on whether a contract looks inside or outside, red-flag clause identification, and guidance on the evidence a contractor should keep.
  • Salary and dividend planning advice each tax year, taking into account dividend rates, pension contribution headroom and the personal allowance taper above £100,000.
  • Pension structuring advice: how much the company can contribute, carry-forward planning if relevant, and coordinating the pension with salary and dividends to minimise overall tax.
  • Quarterly or mid-year CT provision reviews so there are no surprises at year-end.

Any package that omits material items from this list is not a complete service and should be priced with those gaps in mind. A fee that looks low because it excludes self assessment, pension advice or IR35 support is not cheaper on a like-for-like basis.

The false-economy warning

The false economy in contractor accountancy works in two directions. The first is the obvious one: a package that excludes key services is not actually cheap, it just defers the cost to when you buy the missing item separately (usually at a worse unit rate), or absorbs it as a missed tax saving or compliance cost.

The second direction is less visible but more expensive. Advice gaps compound over time. A contractor who is not having the pension conversation annually, who has not been told about the Employment Allowance restriction for single-director companies, or who has not had the IR35 chapter distinction explained so that they know what their obligations are under a small-client engagement, is not simply missing some administrative tidying. They are missing planning decisions that can represent thousands of pounds a year in unnecessary tax.

To put some structure around this: the 2026/27 employer NIC rate is 15% on earnings above the secondary threshold of £5,000. For a director taking a salary of £12,570 from a company that cannot claim the Employment Allowance, the employer NIC bill is £1,135.50 per year. An accountant who does not flag the Employment Allowance eligibility question, and does not model whether £12,570 or £6,708 is the more efficient salary target for a single-director company, has cost the client real money that does not appear in the fee comparison.

The pension lever is larger still. The annual allowance for 2026/27 is £60,000, and unused allowances from the previous three years can be carried forward. An employer pension contribution that uses even part of that headroom receives corporation tax relief at 19% to 25% and avoids all NIC. An accountant who handles this well for a contractor at the higher marginal CT rate (the 26.5% effective rate on profits between £50,000 and £250,000) delivers a demonstrable saving that makes the monthly fee look irrelevant by comparison. An accountant who does not raise it does not appear on the fee comparison at all, but the cost is real.

IR35 and the 2026 compliance picture

Two developments in 2026 have raised the cost of getting contractor tax wrong and, by extension, raised the value of specialist accountancy advice.

First, the Finance Act 2026 increased the dividend ordinary rate to 10.75% and the upper rate to 35.75% from 6 April 2026 (Finance Act 2026 s.4, amending ITA 2007 s.8). The additional rate is unchanged at 39.35% and the dividend allowance remains £500 for 2026/27. These changes affect the salary and dividend split calculation for every PSC contractor: the optimal split in 2026/27 is not the same as in 2025/26, and an accountant who has not updated their planning calculations for this change is giving you advice based on superseded figures.

Second, from 6 April 2026, Finance Act 2026 s.24 inserted a new joint-and-several liability regime for umbrella company PAYE (new Chapter 11, ss.61Y to 61Z2 of ITEPA 2003): where an umbrella fails to remit PAYE and NIC on a worker's pay, HMRC can now pursue the recruitment agency (or the end client, where there is no agency) for the unpaid amounts. The umbrella remains the legal employer; what changes is that the agency's exposure is now explicit. This has materially sharpened the scrutiny on which umbrellas agencies allow on their preferred-supplier lists. Understanding where the liability sits and what it means for compliance choices is exactly the kind of context a specialist contractor accountant should be providing for anyone working through umbrellas alongside their PSC. More on the inside IR35 picture can be found at our inside IR35 guide.

The picture at the small-client boundary is also worth understanding for those working outside IR35. The Finance Act 2026 did not change the off-payroll working rules themselves, but the Companies Act 2006 s.382 small-company thresholds were raised for financial years beginning on or after 6 April 2025, to £15m turnover and £7.5m balance sheet total (employees at 50 unchanged). Because of the relevant-financial-year lag and the two-consecutive-years rule, the earliest a previously medium client could fall out of Chapter 10 scope on the back of those raised thresholds is 6 April 2027. For 2026/27, most contractors should assume medium and large clients are still in scope unless the client has confirmed otherwise in a valid Status Determination Statement. The off-payroll working rules guide covers the mechanics in full.

How to evaluate a quote properly

When you receive a fee quote from a contractor accountant, the following checks will give you a much clearer picture of true value than the monthly number alone:

List exactly what is included and what is extra. Self assessment, VAT returns, IR35 advice, and pension structuring support should each be explicitly confirmed as in or out of the fee. If any of these is listed as "on request" or "available at additional cost", factor in a realistic estimate of what you would spend on it.

Ask how the firm's IR35 advice is delivered. Specifically: if you come to them with a contract and ask whether it looks inside or outside IR35, what do you get? An in-house view backed by their IR35 knowledge, a referral to a third party at extra cost, or no view at all? This is not a peripheral question for most contractors; it is close to the core of what makes a specialist worth the premium.

Check whether the adviser assigned to your account handles contractor-only clients. A firm that markets itself as a contractor specialist but assigns your account to a junior adviser who also handles SME bookkeeping is not the same as a firm where every adviser works with contractors day to day.

Ask about proactive contact. A complete service means you hear from your accountant when something changes that affects you (a rate change, a new compliance obligation, a pension contribution opportunity before the year-end), not only when a deadline is approaching. The value of specialist advice is often realised in conversations that the accountant initiates, not ones you have to start yourself.

Understand the switching process. If you are already with an accountant and considering moving, the process of transferring books, authorising handover of HMRC credentials, and bringing a new firm up to speed on your company's position is more straightforward than most contractors expect. Our guide on how to switch contractor accountant covers the steps in detail.

The accounting decision and what comes next

The UK market for contractor accountancy is mature and reasonably competitive, which is why fees have remained in a broadly stable range. But the complexity of the work has increased: the IR35 chapter distinction, the 2026 umbrella JSL reform, the updated dividend rates, and the ongoing pension annual allowance planning questions all require up-to-date specialist knowledge that a generic practice cannot reliably provide.

The question to ask when evaluating a fee is not "is this cheaper than the alternative" but "what would it cost me if this firm gets something wrong or misses something important". For most contractors operating through a limited company, the answer to that question is considerably larger than the monthly accountancy fee.

If you are looking for a starting framework for the choice itself rather than the cost, the wave-1 guide on how to choose a contractor accountant covers the full evaluation criteria including IR35 expertise, the MSC legislation risk for accountants who go beyond advice, and the practical questions to ask before you engage. The MSC risk deserves particular attention: under ITEPA 2003 Chapter 9, an accountant who goes beyond advising and into controlling or running your company's finances and payment structure can trigger the managed service company legislation, with personal debt-transfer consequences. Choosing an accountant who clearly advises rather than operates is not a theoretical concern; it is basic risk management, especially given that the Churchill Knight and Boox test cases are listed for First-tier Tribunal hearings in 2026 and remain undecided at the time of writing.

To discuss what a specialist contractor accountancy service covers and whether it is the right fit for your situation, visit our contractor accountancy services page.