BBohzoAccountants
West London · Online service · fixed, one-off

Self Assessment tax returns in Cowley — from £129, fixed.

If HMRC expects a tax return from you, we take the whole job off your plate — prepared and filed online for Cowley clients at one fixed fee, agreed in writing first. We work with sole traders, landlords and directors across Cowley and neighbouring Uxbridge South, Brunel, Little Britain.

Fixed fees, alwaysThe price you see is the price you pay — never hourly.
100% onlineServing every UK town. No office visits needed.
Registered UK companyBohzo Accountants is a trading name of Bohzo Ltd, registered in England and Wales. Company No. 15031604.
HMRC & Companies HouseReturns and accounts prepared and filed for you.
Self Assessment Tax Returns · Cowley

Self Assessment Tax Returns for Cowley — done properly, entirely online

Sole traders, freelancers, landlords, company directors, higher earners and anyone in Cowley who's been asked by HMRC to file a return — including first-time filers who've just gone self-employed.

What's included

  • Full SA100 return prepared and filed with HMRC
  • All supplementary pages your situation needs — self-employment, property, dividends, CGT
  • Your tax liability checked and explained in plain English
  • Payments on account calculated so there are no surprises
  • Deadline reminders so you never miss 31 January
Why Bohzo

What Cowley gets with Bohzo Accountants

One fixed price, in writing

Quote first, work second: one written price that can't drift, however many questions you ask along the way.

100% online, by design

Secure portal and WhatsApp — no office visits, no printing, no waiting rooms.

Who you're dealing with

We're Bohzo Ltd (Company No. 15031604) — a registered UK company you can look up, not an anonymous website.

Deadlines managed for you

Self Assessment, VAT quarters, accounts, confirmation statements — each deadline is tracked and chased by us, well before it's close.

Transparent pricing

Compare our fixed self assessment tax returns fees

Your situationFixed fee
Straightforward return — one income source£129
With rental property income£169
With capital gains (property, shares, crypto)£199
Late-return rescue — filed fast, penalties appealed where possible£179

“From” pricing reflects the simplest case; anything more complex is quoted as a fixed fee in writing before work begins — and never changes after.

What makes us different

Online accountants vs the high street

Traditional firms around West 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 Cowley.

There's no office to fund in Cowley 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.

How it works

Self Assessment Tax Returns in Cowley: from first message to filed

Message us from Cowley

A WhatsApp message from Cowley is enough to start: what you need, what shape your records are in, any deadline you're worried about.

Fixed quote in writing

The quote arrives in writing, covers everything discussed, and is the number you'll actually pay. No revisions later.

Online onboarding

Identity checks, engagement letter, secure record upload — all handled from wherever you are in Cowley. We chase whatever's missing.

Approve, then we file

Nothing is filed until you've seen and approved it. Once you have, submission is electronic and confirmation comes straight back.

Serving Cowley

The same service in Cowley as anywhere — by design

Cowley sits in West London (UB8), 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.

London clients in Cowley 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.

Cowley & around

Where we work around Cowley

Cowley sits in the borough of Hillingdon (Uxbridge ward), UB8 postcode area. Geography still shapes who people call, so here's Cowley's: the same fixed-fee service covers every place on this list, at the same price.

NearbyDistance from CowleyDirection
Uxbridge South0.5 milesnorth-west
Brunel0.7 mileseast
Little Britain0.7 milessouth-west
Colham Green0.9 mileseast
Uxbridge Moor1.1 milesnorth-west

Distances are straight-line, between place centres. Every listed place — and everywhere between — is served online at the same fixed fees.

Key dates

Self Assessment Tax Returns deadlines

DateWhat happens
5 Oct 2026Deadline to register for Self Assessment if you're newly self-employed
31 Oct 2026Paper return deadline (almost nobody should be filing on paper)
31 Jan 2027Online filing deadline and balancing payment due — miss it and HMRC charges an automatic £100 penalty
31 Jul 2027Second payment on account due, if you make them
Questions

Cowley self assessment tax returns FAQs

What does the £129 fee include?

Preparation and online filing of your full SA100 return, including the supplementary pages your situation needs. If your return is more complex — rental income, capital gains — the packages above show the fixed price, and we confirm it in writing before starting.

I've missed the deadline — can you still help?

Yes. Late returns are common and fixable: we prepare and file the outstanding return quickly, and where there's a reasonable excuse we help you appeal penalties. The sooner it's filed, the sooner the penalties stop growing.

What records do I need to send you?

Income records (invoices, statements, P60/P45 if employed), expense records, and any letters from HMRC. Not sure what counts? Send what you have through the portal and we'll tell you exactly what's missing — chasing paperwork is part of the job.

Do I need to visit an office in Cowley?

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 Cowley or anywhere else in West London.

I searched "self assessment near me" — is this service really local to Cowley?

Cowley 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 Cowley town centre or the edge of West London. If you'd rather talk it through first, WhatsApp us — a real person answers.

Who will actually handle my self assessment?

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.

Worth knowing

Tax, briefly — the parts that affect Cowley

Corporation tax dates work differently

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.

Switching accountants is easier than you think

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.

The 31 January deadline, without the panic

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.

Allowable expenses: claim what's yours

The expenses rule is "wholly and exclusively" for the trade — which covers more than most people claim (proportionate home-working costs, business mileage, software subscriptions) and less than some hope (client entertaining, everyday clothing). Knowing the line is where the savings live.

Your first year in business

First-year traders around Cowley 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.

Side income and the £1,000 allowance

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.

Payroll and pensions for small employers

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.

Landlord tax has its own rules

Selling a rental property triggers capital gains tax with a tight reporting window — UK residential sales must be reported and the tax paid within 60 days of completion. It's one of the easiest deadlines in the whole system to miss, and one of the most penalised.

General guidance, not personal advice — thresholds and dates change. For advice on your own position in Cowley, message us and we'll answer against your actual numbers.

Client feedback

Recent client feedback

Verified client reviews will appear here as engagements complete. We only ever publish genuine, verifiable feedback — no purchased or invented reviews, anywhere on this site.

Free online tax tools

Guides & checklists

Ready to sort your self assessment tax returns in Cowley?

Accountants in major UK cities

Every service, every fee

Why UK businesses choose Bohzo

Credentials you can check, not badges we bought

No purchased badges, no borrowed awards. When Bohzo is shortlisted for one, it will appear here with a link to the organiser’s official list.

WhatsApp quoteSee fixed fees