Accountant Fees for Small Business: What You'll Really Pay in the UK (2026)

If you’re weighing up hiring an accountant, the first thing you want to know is simple: what does it actually cost? The honest answer is that most UK small businesses pay between £60 and £350+ a month, depending on the type of business and what you need done — but the monthly figure only tells half the story.

Below you’ll find real, current price ranges, what changes the number, and — just as importantly — the hidden fees and service traps that catch people out, so you can compare quotes properly and never get a surprise bill. (For a broader overview across every business type, see our full guide to how much an accountant costs in the UK.)

How much does an accountant cost for a small business?

Here’s a realistic guide to UK accountant fees in 2026, based on typical fixed monthly pricing:

If you’d rather see year-end work priced as a one-off, a set of annual accounts plus a Corporation Tax return for a small limited company usually lands between £750 and £2,000, and a standalone Self Assessment tax return typically runs £150 – £300.

Some accountants still charge by the hour instead — usually £50 to £150 per hour for general work, and more for specialist tax advice. We’ll cover why that matters next.

Want a number for your business rather than a range? You can get a fixed-price quote in about 24 hours — no obligation.

Accountant vs accounting software: what you’re really paying for

Before you weigh up the fee, it’s worth being honest about the alternative most people consider first — doing it yourself with software.

What software costs

Cloud accounting tools — Xero, QuickBooks or FreeAgent — typically run £10–£35 a month. That’s far cheaper than an accountant, and for a simple sole trader with tidy records it can genuinely be enough on its own.

What the software doesn’t do

The catch is that software records your numbers — it doesn’t interpret them or take responsibility for them. It won’t tell you the most tax-efficient way to pay yourself, spot a relief you’ve missed, pick the right VAT scheme, or carry the can if something is filed wrong. You still have to understand the rules, do the filing, and answer any HMRC questions yourself.

So the real comparison isn’t “£15 software vs £100 accountant.” It’s software plus your time and your risk versus software plus a professional who files it, optimises it, and stands behind it. For most small businesses the fee is recovered in tax saved and hours returned — but if your affairs are genuinely simple, software alone may be the smarter spend, and a good accountant will tell you so.

Fixed monthly fees vs hourly rates (and why it matters)

This is the single biggest thing to understand before you compare quotes.

• Fixed monthly fee — you pay the same agreed amount each month, and you know exactly what’s included. You can pick up the phone or email a question without watching a clock.
• Hourly billing — you’re charged for time, often in minimum blocks. A “quick question” can become a line on your invoice, and the final bill is hard to predict.

The most common complaint about hourly billing isn’t the rate — it’s the unpredictability. One small business owner described being charged £50 per email exchange. Another got a year-end bill thousands more than expected, because “it depends how long it takes” was never pinned down.

A fixed monthly fee removes that anxiety. You can see exactly what our fixed pricing includes, with no hourly clock running in the background.

What affects how much you’ll pay

Two businesses with the same turnover can pay very different fees. The price is driven by how much work is involved, mainly:

• Sole trader vs limited company — limited companies have statutory accounts, a Corporation Tax return and Companies House filings, so they cost more than a sole trader’s Self Assessment.
• VAT registration — once turnover passes the £90,000 VAT threshold you must register, adding quarterly returns (and, from 2026, more frequent Making Tax Digital filing).
• Payroll — running PAYE for yourself and any staff is usually priced per payslip, per month.
• Bookkeeping — tidy digital records are cheaper to work with; a carrier bag of receipts costs more in time.
• Turnover and transaction volume — more invoices, expenses and bank transactions mean more to reconcile.
• How behind you are — catch-up work for late or missing records is the most common reason a quote comes in higher than expected.
• Where you’re based — fees tend to run higher in London and the South East than the rest of the UK. Online accountants level this out, since you can choose a firm anywhere rather than paying local high-street rates.

How Making Tax Digital is changing accountant fees in 2026

The biggest shift to accountant fees in 2026 isn’t inflation — it’s Making Tax Digital (MTD) for Income Tax. From April 2026 it begins applying to sole traders and landlords with income over £50,000, then over £30,000 from April 2027 and £20,000 from April 2028.

Here’s why it affects what you pay. Instead of one Self Assessment a year, MTD means keeping digital records and sending HMRC an update every quarter, plus a final declaration — so there’s simply more work, spread across the year. For the two cheapest tiers in the table above (sole traders and landlords), that’s the change most likely to nudge monthly fees upward, because your accountant is now doing something four-plus times a year rather than once.

The flip side: if you’re already on a fixed monthly fee with bookkeeping included, much of this is absorbed into work your accountant does anyway — and getting set up early, on MTD-ready software with a tidy routine, is far cheaper than scrambling at the deadline. If MTD will apply to you, ask any accountant exactly how they’ll handle the quarterly filing and whether it’s included in the quoted fee.

What should be included in the fee

A vague quote is a red flag. Before you compare prices, make sure you’re comparing the same thing. For most small businesses, a good fixed monthly fee should clearly state whether it includes:

• ✅ Year-end accounts
• ✅ Corporation Tax return (limited companies) or Self Assessment (sole traders)
• ✅ Bookkeeping, or a review of your bookkeeping
• ✅ VAT returns (if registered)
• ✅ Payroll (if needed)
• ✅ Software (Xero, QuickBooks or FreeAgent)
• ✅ A named accountant who answers calls and emails — not a call centre or ticket system
• ✅ Unlimited questions and advice through the year — not charged per call

If two quotes look far apart, it’s usually because one quietly leaves several of these out and bills them separately later.

The hidden fees to watch for

The advertised price is rarely the problem — the extras are. Before you sign anything, ask specifically about:

• Per-interaction charges — being billed for individual emails, calls or “answering a question.”
• Mid-year fee increases — some firms raise fees with little notice. Ask how and when prices change.
• Charges for their own mistakes — being billed to correct an error the accountant made.
• “Catch-up” or onboarding fees — for bringing your records up to date.
• Exit / release fees — charges to leave or to hand your records to a new accountant. A good accountant won’t hold your data to ransom.
• Software costs — is the bookkeeping software included, or billed on top?

None of these are necessarily wrong — but they should be disclosed up front, not discovered on an invoice. Transparency is the real test of a good accountant.

Can you actually reach your accountant?

Price isn’t the only thing that varies wildly between accountants — so does whether you can get hold of them. In fact, the most common reason people leave their accountant isn’t the fee at all. It’s silence: emails ignored for days or weeks, calls that go to a voicemail no one returns, a support ticket with a three-day wait, or a different faceless person every time you get in touch.

That has a real cost. When you can’t get a quick answer about a VAT question, a looming deadline or a payment, small problems quietly turn into expensive ones — missed filings, late penalties, decisions made on guesswork. A slightly cheaper accountant you can never reach is rarely good value.

It’s why it’s worth paying for a named accountant who actually answers — one person who knows your business, picks up the phone, and replies to your emails (we aim to reply within one working day). When you compare quotes, ask exactly who will handle your work and how quickly they respond. It matters as much as the price.

Is an accountant worth it for a small business?

For most small businesses, yes — and here’s the honest way to judge it. A good accountant should save or protect more than they cost through:

• Tax efficiency — claiming the right expenses, the most efficient salary/dividend split for company directors, and reliefs you might miss.
• Avoided penalties — late filing fines from HMRC and Companies House add up fast; staying on time pays for itself.
• Time back — hours you’d spend wrestling with bookkeeping and deadlines, returned to running your business.
• Fewer costly mistakes — wrong VAT schemes or misreported figures can cost thousands.

It also helps to remember the fee isn’t a pure cost: accountancy fees are a tax-deductible business expense, so you get tax relief on them. That quietly shrinks the real price — often by 20% or more once you account for the tax you’d otherwise have paid on that money.

If your affairs are very simple — a low-income sole trader with a handful of transactions — you may genuinely be able to file yourself. The moment VAT, payroll, a limited company or property income enters the picture, an accountant usually earns their fee back.

How to avoid overpaying: questions to ask before you sign

Use this short checklist when you speak to any accountant. It’s the fastest way to compare quotes fairly:

1. Is this a fixed price, or could it change during the year?
2. Exactly what’s included — and what would be billed extra?
3. Will I be charged for asking questions by phone or email?
4. Who will actually do my work — and how quickly will you reply when I get in touch?
5. Are there any fees to leave, or to hand over my records?
6. Is bookkeeping software included in the price?
7. How will you help me prepare for Making Tax Digital?

If an accountant answers all seven clearly and in writing, you’ve found a transparent one.

The bottom line

Most UK small businesses pay £60–£350+ a month for an accountant, and the right one should save you more than they cost. What matters most isn’t finding the cheapest quote — it’s finding fixed, transparent pricing with no surprise fees, and a real person you can actually reach.

If you’d like to know exactly what your business would cost, request a fixed-price quote and I’ll come back to you within 24 hours, or take a look at our simple monthly pricing.