Corporation tax returns in London — from £199, fixed.
Corporation tax done right for London companies: computation, reliefs, iXBRL and filing — one fixed fee. We make sure you claim everything you're entitled to and pay exactly what's due, no more. Serving London and nearby Charing Cross, Whitehall, Chinatown.
Corporation Tax for London — done properly, entirely online
Limited companies in London of every size — especially companies whose profits sit between £50,000 and £250,000, where marginal relief makes the calculation genuinely easy to get wrong.
What's included
- Corporation tax computation from your accounts
- Every relief you're entitled to — capital allowances, losses, AIA
- CT600 filed with HMRC with iXBRL-tagged accounts
- Clear payment instructions — how much, when, and to where
- Marginal relief calculated correctly between the 19% and 25% bands
What London gets with Bohzo Accountants
Before we touch anything for a London 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 corporation tax fees
| Your situation | Fixed fee |
|---|---|
| CT600 with accounts prepared by us | included in accounts packages |
| Standalone CT600 from your accounts | £199 |
| CT600 with capital allowances review | £299 |
| Overdue CT600 rescue | £279 |
“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
Traditional firms around Central London still run on hourly billing, office appointments and fees you discover after the work. We work the other way round: one fixed fee agreed in writing before anything starts, every question included, and the whole engagement handled online — which is exactly why we can serve London at fees a walk-in office can't match.
There's no office to fund in London 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.
Corporation Tax in London: 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 London.
You review everything first. Then it goes to HMRC electronically and you get confirmation immediately.
The same service in London as anywhere — by design
Whether your business trades from London itself or you simply live there and work everywhere, the tax rules are national — and so are we. London clients get the same preparers, the same fixed fees and the same deadline tracking as every other town on this site.
Being in London, London 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 London
London sits in the borough of Westminster (St James's ward), WC2N postcode area. If you're comparing local options from London, it helps to see the map the way we do — one service area, no travel involved.
| Nearby | Distance from London | Direction |
|---|---|---|
| Charing Cross | 0.1 miles | south-east |
| Whitehall | 0.1 miles | south-west |
| Chinatown | 0.3 miles | north-west |
| Covent Garden | 0.3 miles | north-east |
| Seven Dials | 0.4 miles | north |
Distances are straight-line, between place centres. Every listed place — and everywhere between — is served online at the same fixed fees.
Corporation Tax deadlines
| Date | What happens |
|---|---|
| 9 months + 1 day after year end | Corporation tax payment due — before the return itself |
| 12 months after year end | CT600 return filing deadline |
London corporation tax FAQs
What rate of corporation tax will my company pay?
19% on profits up to £50,000, 25% above £250,000, and marginal relief in between — an effective rate that climbs gradually. Associated companies split those thresholds, which catches many owners with more than one company. We calculate it precisely.
The payment is due before the return — is that right?
Yes, oddly: payment is due 9 months and 1 day after year end, but the return itself isn't due until 12 months. We prepare everything well before the payment date so you know the bill with time to plan.
Can you review whether I've missed reliefs in past years?
Yes — you can generally amend a CT600 up to 12 months after its filing deadline, and some claims reach back further. If you think allowances went unclaimed, we'll review and quote a fixed fee for any amendment worth making.
Do I need to visit an office in London?
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 London or anywhere else in Central London.
I searched "corporation tax near me" — is this service really local to London?
London 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 London town centre or the edge of Central London. If you'd rather talk it through first, WhatsApp us — a real person answers.
Who will actually handle my corporation tax?
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
HMRC requires records to be kept for at least five years after the filing deadline for the self-employed. Digital copies count. A cloud folder or app now beats a carrier bag of paper every time — for you and for any future enquiry.
A limited company juggles two regulators: Companies House wants accounts within nine months of year end, HMRC wants corporation tax paid at nine months and a day. Same starting point, different documents — and late filing penalties at Companies House escalate automatically and are rarely cancelled.
Dividends can only be paid from accumulated profits, and paperwork matters: board minutes and dividend vouchers, dated correctly. "Illegal dividends" isn't dramatic language — overdrawn payments can be reclassified, with tax consequences, if the profits weren't there.
Directors paying themselves a salary still need a PAYE scheme and RTI submissions, even in a one-person company. It's a five-minute monthly task with software — and a recurring penalty generator without it.
VAT registration becomes compulsory once your taxable turnover in any rolling 12 months passes £90,000 — and "rolling" is the word that catches people, because it's not your accounting year. Businesses in London growing towards that line should be watching it monthly.
Scam "HMRC" messages outnumber real ones — HMRC doesn't demand payment by gift card or threaten arrest by text. Real letters have reference numbers that we can verify directly with HMRC before anyone responds.
First-year traders around London tend to make the same three mistakes: registering late, mixing business and personal spending in one account, and saving nothing for the first tax bill. All three are avoidable in an afternoon of setup.
Timing disposals across tax years, using losses properly, and the spousal transfer rules can all legitimately reduce capital gains bills — but only before the sale. CGT planning after completion is just arithmetic.
General guidance, not personal advice — thresholds and dates change. For advice on your own position in London, message us and we'll answer against your actual numbers.
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