Corporation tax returns in Caledonian — from £199, fixed.
Your CT600 prepared and filed by online accountants who check every relief first — capital allowances, losses, marginal relief. Fixed fee, agreed up front, for companies across Caledonian and North London including Barnsbury, Caledonian Road, King's Cross.
Corporation Tax for Caledonian — done properly, entirely online
Limited companies in Caledonian 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 Caledonian gets with Bohzo Accountants
Records in over the portal or WhatsApp, approvals from your phone, filings sent electronically — Caledonian to HMRC without a single appointment.
Your fee is agreed before any work starts and never changes mid-job. No hourly billing, ever.
We track every HMRC and Companies House date that applies to you, so you don't have to.
Bohzo Accountants trades as Bohzo Ltd, registered in the UK under Company No. 15031604 — check us on Companies House any time.
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 North 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 Caledonian.
There's no office to fund in Caledonian 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 Caledonian: from first message to filed
A WhatsApp message from Caledonian is enough to start: what you need, what shape your records are in, any deadline you're worried about.
The quote arrives in writing, covers everything discussed, and is the number you'll actually pay. No revisions later.
Identity checks, engagement letter, secure record upload — all handled from wherever you are in Caledonian. We chase whatever's missing.
Nothing is filed until you've seen and approved it. Once you have, submission is electronic and confirmation comes straight back.
The same service in Caledonian as anywhere — by design
Whether your business trades from Caledonian itself or you simply live there and work everywhere, the tax rules are national — and so are we. Caledonian clients get the same preparers, the same fixed fees and the same deadline tracking as every other town on this site.
Being in London, Caledonian 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 Caledonian
Caledonian sits in the borough of Islington (Caledonian ward), N1 postcode area. Caledonian clients often ask whether we also cover the surrounding villages and towns. We do — here's what "nearby" actually looks like from Caledonian.
| Nearby | Distance from Caledonian | Direction |
|---|---|---|
| Barnsbury | 0.2 miles | south-east |
| Caledonian Road | 0.6 miles | north |
| King's Cross | 0.6 miles | south |
| Kings Cross | 0.6 miles | south |
| St. Pancras and Somers Town | 0.6 miles | south-west |
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 |
Caledonian 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 Caledonian?
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 Caledonian or anywhere else in North London.
I searched "corporation tax near me" — is this service really local to Caledonian?
Caledonian 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 Caledonian town centre or the edge of North 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.
Tax notes our Caledonian clients ask about most
Filing early doesn't mean paying early: submit a return in May and the tax is still not due until the usual dates. Early filing buys certainty, refund speed and time to arrange payment — it costs nothing.
The trading allowance means up to £1,000 of gross side income per year can be tax-free with no return needed. Above that, registration and reporting kick in — and platforms now report seller data to HMRC, so "under the radar" isn't a strategy any more.
Self Assessment lateness is priced in stages: £100 immediately, daily £10 penalties after three months (up to £900), then percentage-based charges at six and twelve months — all separate from interest on unpaid tax. The curve is designed to reward filing sooner, whatever the state of your records.
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 Caledonian stopped being the differentiator the day filings went electronic.
First-year traders around Caledonian 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.
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.
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.
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.
General guidance, not personal advice — thresholds and dates change. For advice on your own position in Caledonian, message us and we'll answer against your actual numbers.
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