Accountants for freelancers
We tell you what percentage of each invoice to set aside for tax, keep your books current from your phone, chase your invoices and finish your return months before January.
What to set aside from each invoice
of every invoice, in your first full year
Income tax, Class 4 National Insurance and the first payment on account, as a share of what you invoice. 2026/27 rates, no other income. After the first year the share drops to about two thirds of this.
Irregular income and regular tax bills
Freelance income arrives unevenly. Three invoices land in March and nothing lands in August, and the tax on the March money is not due for ten months.
Freelancers who fall behind with HMRC have usually kept the share that belonged to the tax in the same account as the rent.
We tell you, from your actual numbers, what percentage of every invoice to set aside for tax, and make it easy to do.
Six tax dates for freelancers
- April
6 April: new tax year. Everything invoiced from here belongs to the next return.
- July
31 July: second payment on account.
- October
5 October: register for Self Assessment in your first year. 31 October: paper return deadline.
- January
31 January: online return, the balancing payment and the first payment on account.
Any month: cross £90,000 of turnover in any twelve months and you have 30 days to register for VAT.
These dates are fixed whatever your income in the quarter, so set money aside as it comes in. Source: gov.uk Self Assessment and VAT deadline guidance, checked July 2026.
Five common freelancer tax mistakes
No set-aside, or the wrong percentage
A guess of 20% is usually too low once Class 4 National Insurance and the first payment on account are in. The right number for most freelancers is closer to a quarter of turnover, and we calculate it from your figures.
The payment on account, unannounced
Your first properly profitable January asks for the year’s tax plus half of it again. We tell you before it arrives.
Expenses claimed from memory
Software, kit, professional subscriptions, use of home, travel to a client that is not your normal workplace, training that updates a skill you already have. Expenses reconstructed in January are often missed.
Drifting past the VAT threshold
The £90,000 test runs on any rolling twelve-month period, so your accounting year does not come into it. Registration is due within 30 days of going over. A good six months can take you through it without you noticing.
Assuming a company would be better
A company brings filing, scrutiny, rules on taking money out, and a cost to unwind. Whether it saves tax depends on what you need to draw out of the business.
What we do for freelancers
Your set-aside percentage
Calculated from your own figures and revisited as the year goes.
Books kept current
Bank feed and receipts from your phone, so the expenses are captured when they happen.
Invoicing and chasing
Raised from the same place the bookkeeping lives, with reminders sent automatically.

The return, early
Finished months before January, with the figure and both payment dates in writing.
The VAT threshold watched
You are told as you approach the threshold, while there is still time to plan for it.
Whether to form a company
Modelled on what you need to draw, once your profit makes it worth considering.
What people ask us
Anything else, book a free call or call 07476 989568.
How much does it cost for a freelancer?
Working as a sole trader, the accounts and your Self Assessment return start at £29 + VAT a month. Through a limited company, it starts at £49 + VAT. The fee rises with turnover, and VAT returns are included once you are registered. The instant quote shows your monthly fee in four questions, and the fee is fixed once agreed. FreeAgent is included, worth up to £330 a year, and questions are covered by the monthly fee.
Should I be a sole trader or run a limited company?
Start as a sole trader unless something specific pushes the other way. The tax gap between the two is narrower than it was once Corporation Tax and dividend rates are counted, and a company adds public accounts, payroll, a separate bank account and filings with their own penalties. What genuinely pushes towards a company: clients who will only contract with limited companies, income you can leave in the business rather than draw, and liability you want ring-fenced. A company does not automatically save tax. Run your own numbers on the salary and dividend calculator and bring them to the call.
Does IR35 apply to me, and can you tell me my status?
IR35 applies if you work through your own company and the reality of the engagement looks like employment. No calculator can tell you your status, and neither can a contract on its own: it turns on control over how and when you work, whether a substitute is genuinely allowed, mutuality of obligation, financial risk and how embedded you are in the client’s organisation. For medium and large private-sector clients and all public-sector clients, the client decides and issues a Status Determination Statement, which you can and should challenge if it is wrong. We review the written contract and your actual working practices.
What can I claim, and what will HMRC push back on?
Costs incurred wholly and exclusively for the business: software, professional subscriptions, equipment, insurance, accountancy fees, and the business proportion of a phone, car or room at home. HMRC reliably pushes back on travel to a client site that has become your normal place of work, everyday clothing, and entertaining. Home-office claims are fine if the basis is defensible — rooms, hours, actual costs — and weak if it is a round number picked because it looked safe. Keep the records digitally as you go; under Making Tax Digital they must be digital anyway, and receipts reconstructed in January are the ones that get disallowed.
Do I need to register for VAT, and should I do it voluntarily?
Registration is compulsory once VAT-taxable turnover exceeds £90,000 in any rolling twelve-month period, or when you expect to exceed it within the next thirty days. Registering voluntarily below that makes sense when your clients are VAT-registered businesses who reclaim it anyway, because you then recover VAT on your own costs. If you invoice consumers or small unregistered businesses, voluntary registration simply makes you 20% more expensive. Watch the rolling test — it is not your accounting year, and crossing it unnoticed can mean paying HMRC VAT you never charged.
Why is my first tax bill so much bigger than I expected?
Because payments on account land at the same time. In your first full year you pay the tax for that year by 31 January, plus a first payment on account for the next year — commonly half the bill again — on the same date, then a second on 31 July. So a £6,000 liability can mean £9,000 leaving the account in January. They are advance payments towards next year’s bill, so the total tax is unchanged; only the timing catches people out. If your income has genuinely fallen you can apply to reduce the payments, but reduce them too far and HMRC charges interest on the shortfall.
What happens between contracts, or in a quiet quarter?
The fee stays the same and the work does not stop — returns, filings and deadlines still apply in a bad quarter. Fixed monthly pricing gives you a number you can budget for, whatever the year brings. If income has dropped materially and looks like staying there, tell us. Reducing payments on account, changing VAT scheme or stepping down a plan are all real options, and plan changes take effect from the next billing cycle.
Can I switch accountants mid-contract?
Yes, at any point in the year. You tell us to go ahead, we write to your current accountant for professional clearance and your records, register as your agent with HMRC and set up the software while we wait. Most handovers are done within a couple of weeks and the delay is usually the other firm’s reply. Two things to sort at your end: check the notice period in your existing engagement letter, and make sure any work you have already paid for has actually been completed.
See your monthly fee in four questions
Your name and email come last, to send the proposal.
Call or WhatsApp 07476 989568 or email hello@buzzaccounting.co.uk
- Sole trader: accounts and Self Assessment
- From £29+ VAT a month
- Limited company: accounts and Corporation Tax
- From £49+ VAT a month
- FreeAgent
- Includedworth up to £330 a year
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