Contractor accountants in Castelnau — from £75/mo, fixed.
From first contract to portfolio career, we run the company side for Castelnau (SW13) contractors: everything filed, salary and dividends optimised, IR35 watched. Also serving Barnes, Riverside, Mortlake and Barnes Common.
Contractor Accountants for Castelnau — done properly, entirely online
IT, engineering, finance and interim contractors in Castelnau working through personal service companies — inside or outside IR35, or moving between the two.
What's included
- Company accounts, corporation tax and confirmation statement
- Director payroll and dividend paperwork done properly
- Optimal salary/dividend mix reviewed every April
- IR35 status guidance on each engagement
- Real-time view of what you can safely draw
Why Castelnau businesses pick Bohzo
Before we touch anything for a Castelnau client, the fee is in writing — and it stays put. Hourly billing doesn't exist here.
Every filing date that applies to you goes in our diary the day you join — and we chase the records, not the other way round.
Bohzo Accountants is a trading name of Bohzo Ltd, Company No. 15031604.
Upload, approve, filed. The whole engagement runs from your phone or laptop, on your schedule rather than office hours.
Compare our fixed contractor accountants fees
| Your situation | Fixed fee |
|---|---|
| Essential: accounts, CT600, payroll, dividends | £75/mo |
| Plus: essential + VAT + bookkeeping | £105/mo |
| Complete: plus + Self Assessment + planning call | £125/mo |
| IR35 contract review (one-off) | £99 |
“From” pricing reflects the simplest case; anything more complex is quoted as a fixed fee in writing before work begins — and never changes after.
Online accountants vs the high street
Most local firms near Castelnau quote low, bill by the hour and reserve the right to charge for every phone call. We built the opposite: written fixed fees agreed up front, unlimited questions inside the price, and a fully online workflow — no premises anywhere, so no premises priced into your fee in Castelnau.
There's no office to fund in Castelnau and no office to visit: records travel through our secure portal or WhatsApp, approvals happen on your phone, and filings go to HMRC and Companies House electronically. You get the same qualified work — minus the overheads, the travel and the surprises on the invoice.
Contractor Accountants in Castelnau: from first message to filed
WhatsApp or the enquiry form — describe what you need and roughly what your records look like. Two minutes.
You get one written fixed price before anything begins — and if your case is unusual, we price that honestly up front.
Onboarding is a phone job: verify identity, sign the engagement letter, upload records. Nothing needs you to leave Castelnau.
You review everything first. Then it goes to HMRC electronically and you get confirmation immediately.
The same service in Castelnau as anywhere — by design
Castelnau sits in South West London (SW13), and like everywhere we serve, it gets the identical service and fee as central London — because nothing about our work depends on where you are. What matters is your situation, your records and your deadlines; all three travel over WhatsApp just fine.
Being in London, Castelnau clients often come to us comparing against firms charging central-London rates for the same compliance work. The work is identical; the overheads aren't — and since we carry no premises anywhere, our fees don't care about postcodes.
Where we work around Castelnau
Castelnau sits in the borough of Richmond upon Thames (Barnes ward), SW13 postcode area. If you're comparing local options from Castelnau, it helps to see the map the way we do — one service area, no travel involved.
| Nearby | Distance from Castelnau | Direction |
|---|---|---|
| Barnes | 0.6 miles | south-west |
| Riverside | 0.7 miles | east |
| Mortlake and Barnes Common | 0.8 miles | south-west |
| Chiswick Homefields | 0.8 miles | north-west |
| Fulham Reach | 1.0 miles | north-east |
Distances are straight-line, between place centres. Every listed place — and everywhere between — is served online at the same fixed fees.
Castelnau contractor accountants FAQs
How does IR35 affect me?
If a contract is 'inside IR35', tax is broadly like employment; outside, you keep the company's flexibility on salary and dividends. Since the off-payroll rules, medium and large clients determine status — but the risk and planning still land on you. We review contracts and working practices so you know where each engagement stands.
What's the most tax-efficient way to pay myself?
Typically a modest salary (keeping NI credits) plus dividends from post-tax profits, reviewed each April as thresholds move. It depends on your other income and pension plans — the review is included in every package.
Can I switch accountants mid-contract?
Yes, any time. We handle professional clearance with your current accountant and take over the records — most switches complete within two weeks with nothing for your agency or client to notice.
Do I need to visit an office in Castelnau?
No — there's nothing to visit and nothing to print. We're an online firm: records go through our secure portal or WhatsApp, and everything is filed electronically. It works the same whether you're in Castelnau or anywhere else in South West London.
I searched "contractor accounting near me" — is this service really local to Castelnau?
Castelnau is fully covered, yes. The work is done online, which in practice means more local than an office: same-day replies instead of appointment slots, and the same published fixed fee whether you're in Castelnau town centre or the edge of South West London. If you'd rather talk it through first, WhatsApp us — a real person answers.
Who will actually handle my contractor accounting?
Bohzo Accountants — a trading name of Bohzo Ltd, a registered UK company (No. 15031604). You get a named contact, a fixed fee in writing, and nothing is filed until you've reviewed and approved it.
How do your fixed fees work?
You tell us your situation, we quote one fixed price in writing before any work starts, and that price never changes mid-job. If your case is unusually complex we'll say so up front and agree a different fixed price — but the fee is always agreed before we begin, never after.
The short version of the rules that matter
Inside-IR35 and outside-IR35 engagements need different setups — sometimes umbrella, sometimes the company, sometimes both across a year. Contractors who plan this per-engagement keep more and worry less.
Some businesses register for VAT before they must — reclaiming input VAT can be worth it if your customers are VAT-registered themselves. Others should stay below deliberately. It's a real decision with real numbers, not a formality.
Compliance checks are usually specific: one return, one figure, one question. Answered promptly and with evidence, most close quickly. The expensive enquiries are the ones that started as unanswered letters.
UK residential property sales have their own regime: report and pay within 60 days of completion, separately from Self Assessment. Other gains report annually. Mixing up the two timetables is a common and expensive mistake.
People stay with the wrong accountant for years because switching feels disruptive. In practice the profession has a standard handover process — clearance letters, copies of prior returns and working papers — and the new firm drives it, not you.
If you're a sole trader or landlord anywhere near the £50,000 income mark, Making Tax Digital will change your filing rhythm from 2026: four digital updates a year plus a final declaration. Clients who move their records to software early find the transition a non-event.
Limited companies in CIS reclaim differently to sole traders — through payroll or the company tax return rather than Self Assessment. Plenty of construction companies sit on refundable deductions without realising; a quick review of the CIS position often pays for itself immediately.
The businesses that find January easy are the ones whose bookkeeping happened all year — automatically. Modern software matches bank transactions, files receipts photographed on a phone, and leaves nothing to reconstruct from memory in the new year.
General guidance, not personal advice — thresholds and dates change. For advice on your own position in Castelnau, message us and we'll answer against your actual numbers.
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