Corporation tax returns in Westminster — from £199, fixed.
Company tax without guesswork: we compute, optimise within the rules and file with HMRC for Westminster businesses at a fixed fee. Covering Westminster (SW1P) and the surrounding area including Westminster Abbey, Millbank, City of Westminster.
Corporation Tax for Westminster — done properly, entirely online
Limited companies in Westminster 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 Westminster gets with Bohzo Accountants
Quote first, work second: one written price that can't drift, however many questions you ask along the way.
Secure portal and WhatsApp — no office visits, no printing, no waiting rooms.
We're Bohzo Ltd (Company No. 15031604) — a registered UK company you can look up, not an anonymous website.
Self Assessment, VAT quarters, accounts, confirmation statements — each deadline is tracked and chased by us, well before it's close.
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 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 Westminster.
There's no office to fund in Westminster 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 Westminster: from first message to filed
Start with a message — no forms, no phone queue. Tell us what needs doing and we take it from there.
One fixed price before any work starts. Complex case? We say so now, not on the invoice.
The legal bits — ID verification, engagement letter — happen online in minutes, then your records come in via the portal or WhatsApp.
We prepare, you check and approve, we submit — and you get the HMRC confirmation the same day it's filed.
The same service in Westminster as anywhere — by design
Whether your business trades from Westminster itself or you simply live there and work everywhere, the tax rules are national — and so are we. Westminster clients get the same preparers, the same fixed fees and the same deadline tracking as every other town on this site.
London clients in Westminster tend to arrive with more moving parts — employment plus side income, shares, property. That's fine: the fixed quote covers your actual situation, agreed before we start, however many supplementary pages it needs.
Where we work around Westminster
Westminster sits in the borough of Westminster (St James's ward), SW1P postcode area. Geography still shapes who people call, so here's Westminster's: the same fixed-fee service covers every place on this list, at the same price.
| Nearby | Distance from Westminster | Direction |
|---|---|---|
| Westminster Abbey | 0.1 miles | south-west |
| Millbank | 0.3 miles | south |
| City of Westminster | 0.4 miles | south-west |
| Whitehall | 0.5 miles | north |
| Charing Cross | 0.5 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 |
Westminster 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 Westminster?
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 Westminster or anywhere else in Central London.
I searched "corporation tax near me" — is this service really local to Westminster?
Westminster 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 Westminster 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.
Things worth knowing before your next filing
The honest answer changes with your profits. At lower profits, sole trader simplicity usually wins; as profits grow, a limited company's mix of salary and dividends, corporation tax rates and liability protection starts earning its extra admin. We run the actual numbers before recommending either.
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.
Compare accountants on the things that bite later: is the fee fixed and written down, what exactly is included, who does the work, how fast do they answer in January. Proximity to Westminster stopped being the differentiator the day filings went electronic.
Auto-enrolment applies from the first eligible employee: assess, enrol, contribute, declare. The Pensions Regulator does check, and the fines for ignoring it are out of proportion to how simple compliance actually is.
The best time to switch is after a filing, but it works at any point in the year. What matters is not letting a looming deadline stop you: a new firm can usually pick up an in-flight year faster than you'd think.
Every year a wave of returns gets filed in the final days of January. It works, but it's the most expensive way to do it: no time to check for missed reliefs, and any tax due lands as one surprise. Sending your records early — even unsorted — is the single best gift you can give your January self.
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.
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.
General guidance, not personal advice — thresholds and dates change. For advice on your own position in Westminster, message us and we'll answer against your actual numbers.
Corporation Tax near Westminster
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