Corporation tax returns in Old Windsor — from £199, fixed.
Company tax without guesswork: we compute, optimise within the rules and file with HMRC for Old Windsor businesses at a fixed fee. Covering Old Windsor (SL4) and the surrounding area including Friary Island, Woodside, Wraysbury.
Corporation Tax for Old Windsor — done properly, entirely online
Limited companies in Old Windsor 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 Old Windsor gets with Bohzo Accountants
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.
Records in over the portal or WhatsApp, approvals from your phone, filings sent electronically — Old Windsor to HMRC without a single appointment.
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 M25 Fringe 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 Old Windsor at fees a walk-in office can't match.
There's no office to fund in Old Windsor 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 Old Windsor: 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 Old Windsor as anywhere — by design
Whether your business trades from Old Windsor itself or you simply live there and work everywhere, the tax rules are national — and so are we. Old Windsor clients get the same preparers, the same fixed fees and the same deadline tracking as every other town on this site.
Smaller towns like Old Windsor are exactly why we work online: the nearest high-street firm may be a drive away, keep office hours, and price like scarcity. Your accountant should be as close as your phone — and priced like competition exists.
Where we work around Old Windsor
Old Windsor is part of M25 Fringe, in the SL4 postcode area, with Friary Island its nearest neighbour — about 0.3 miles to the east. If you're comparing local options from Old Windsor, it helps to see the map the way we do — one service area, no travel involved.
| Nearby | Distance from Old Windsor | Direction |
|---|---|---|
| Friary Island | 0.3 miles | east |
| Woodside | 0.7 miles | south-west |
| Wraysbury | 0.9 miles | east |
| Ham Fields | 1.0 miles | north-east |
| Ham Island | 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.
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 |
Old Windsor 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 Old Windsor?
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 Old Windsor or anywhere else in M25 Fringe.
I searched "corporation tax near me" — is this service really local to Old Windsor?
Old Windsor 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 Old Windsor town centre or the edge of M25 Fringe. 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, briefly — the parts that affect Old Windsor
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.
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.
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 Old Windsor businesses it saves thousands; for others it's pure extra paperwork.
Status under IR35 turns on the reality of the engagement: control, substitution, mutuality of obligation. Contracts matter, but working practices matter more. A written status assessment for each engagement is cheap insurance.
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.
Changing accountant mid-year is routine: you authorise the new firm, we write a professional clearance letter to the old one, records transfer, and HMRC authorisation moves online. Clients are usually surprised the whole thing needs almost nothing from them.
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.
Payments on account catch people out because the first year effectively bills you one-and-a-half years of tax at once. Knowing that in advance changes how you save through the year — and if profits fall, we can apply to reduce the July payment rather than lending HMRC money interest-free.
General guidance, not personal advice — thresholds and dates change. For advice on your own position in Old Windsor, message us and we'll answer against your actual numbers.
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