Corporation tax returns in Islip — from £199, fixed.
Corporation tax done right for Islip 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 Islip and nearby Woodeaton, Hampton Poyle, Heathfield Village.
Corporation Tax for Islip — done properly, entirely online
Limited companies in Islip 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
Why Islip businesses pick Bohzo
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
Most local firms near Islip quote low, bill by the hour and reserve the right to charge for every phone call. 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 Islip at fees a walk-in office can't match.
There's no office to fund in Islip 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 Islip: 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 Islip.
You review everything first. Then it goes to HMRC electronically and you get confirmation immediately.
The same service in Islip as anywhere — by design
Islip sits in South East (OX5), 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.
A lot of our South East clients switched from local firms after one too many surprise invoices. The fix wasn't a cheaper local firm; it was removing the billing model that produces surprises. Fixed fees, in writing, before the work — that's the whole trick.
Where we work around Islip
Islip is part of South East, in the OX5 postcode area, with Woodeaton its nearest neighbour — about 1.5 miles to the south. Geography still shapes who people call, so here's Islip's: the same fixed-fee service covers every place on this list, at the same price.
| Nearby | Distance from Islip | Direction |
|---|---|---|
| Woodeaton | 1.5 miles | south |
| Hampton Poyle | 1.6 miles | north-west |
| Heathfield Village | 1.7 miles | north |
| Oddington | 1.7 miles | east |
| Kidlington | 2.2 miles | 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 |
Islip 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 Islip?
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 Islip or anywhere else in South East.
I searched "corporation tax near me" — is this service really local to Islip?
Islip 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 Islip town centre or the edge of South East. 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.
From our inbox: what Islip businesses ask us
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.
Incorporation isn't a milestone, it's a calculation: corporation tax versus income tax and NICs, dividend taxation, what you need to draw versus what can stay in the company, and whether limited liability matters for your work. For some Islip businesses it saves thousands; for others it's pure extra paperwork.
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.
Receipts win arguments. HMRC doesn't demand a shoebox of paper any more — photos in an app are fine — but every deduction needs evidence behind it. A ten-minute weekly habit beats a January archaeology dig, every time.
From April 2026, self-employed people and landlords with qualifying income over £50,000 move onto Making Tax Digital for Income Tax: digital records and quarterly updates to HMRC, not one annual return. The year before is the right time to get bookkeeping into shape.
A good accountant should be able to tell you, in plain English, what they'll do, when, and for exactly how much. Vagueness on any of the three is the tell. Everything else — size of firm, fancy office, distance from Islip — is decoration.
If a return is late because HMRC asked for one you don't actually need, it can sometimes be withdrawn entirely — penalties included. And where there's a genuine reasonable excuse, appeals succeed more often than people expect. The wrong move is ignoring the letters.
Subcontractors under the Construction Industry Scheme have 20% deducted at source — often more than their final tax bill once expenses and the personal allowance are counted. That's why CIS refunds are so common: the average claim is well into four figures, but only if the deduction statements are all gathered.
General guidance, not personal advice — thresholds and dates change. For advice on your own position in Islip, message us and we'll answer against your actual numbers.
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