IR35 calculator
A first read on whether a contract sits inside or outside IR35.
Freelancing gives you flexibility, but it also puts all the financial responsibility on you — bookkeeping, tax returns, deadlines, expenses, invoicing and HMRC compliance. Buzz helps you stay organised, stay compliant, and understand your numbers without adding more complexity to your day.

Freelance work is unpredictable — busy months and quiet ones — which makes financial admin easy to neglect. Buzz gives you straightforward support so less of your time goes on admin, whatever kind of month it's been. Designer, writer or marketer working for yourself? See how this applies specifically to professional services & freelance creatives.
Both sole trader and limited company setups work well for freelancers, but each carries different responsibilities and tax considerations. We support either structure — Self Assessment, bookkeeping, payroll, VAT, dividends or year-end accounts.
Freelancers want simplicity — knowing what's covered, what it costs, and having responsive support when they need it. Our monthly packages give you ongoing support without unexpected charges every time you ask a question.
Good accounting should help you understand cash flow, tax obligations and how the business is actually performing. Organised bookkeeping and deadline management reduce stress and improve your decisions.
FreeAgent gives you clearer visibility over income and expenses, keeps you better organised, and makes bookkeeping far less painful than spreadsheets and scattered receipts.
No generic answers, no re-explaining your business every time. You get someone who understands freelance work and gives practical advice — quicker answers, less struggling with it alone.
You work hard for your income. Good support keeps things organised and helps you operate tax-efficiently, so more of what you earn stays with you.
Many freelancers stay with an accountant they've outgrown because switching feels like a hassle. In reality, it's simpler than you'd think — we manage the handover and the back-and-forth communications.
That's usually the reason freelancers switch — not a sudden interest in accounting. Buzz provides organisation, responsiveness and support that actually feels useful.
When something comes up — a deadline, an expense, a decision — you get a straight answer from someone who actually knows your freelance business. No ticketing systems, no three-day wait, no being passed from person to person.
You get a fixed monthly figure in writing after a 30-minute discovery call, priced on how you are set up rather than on what you earn. A sole trader freelancer with one income stream and a handful of expenses is a different job from a limited company with VAT, payroll and a director's loan. FreeAgent is included, worth up to £330 a year, and there is no hourly charge for asking questions — which matters more for freelancers than for most, because the questions come up mid-contract and waiting until January is how the expensive answers happen.
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. What does not: the idea that it automatically saves tax. Run your own numbers on the salary and dividend calculator and bring them to the call.
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, which is where determinations are really won or lost.
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. The reliable arguments are 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.
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.
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. It is not a penalty and it is not double tax; it is timing, and it is brutal if nobody warned you. 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.
The fee stays the same and the work does not stop — returns, filings and deadlines still apply in a bad quarter. That is the honest trade-off of fixed monthly pricing: it is worse value in a quiet year and better in a busy one, in exchange for a number you can budget. 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. What we will not do is keep billing for a service you have stopped using without saying anything.
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. You do not have to make the awkward call — that part is ours.








