Self Assessment tax returns in Marylebone — from £129, fixed.
Online Self Assessment done properly for Marylebone: we prepare the return, you approve it, we file it with HMRC. A single fixed fee, no hourly billing — serving Marylebone and the surrounding Central London area including Marylebone High Street, Baker Street, West End of London.
Self Assessment Tax Returns for Marylebone — done properly, entirely online
Sole traders, freelancers, landlords, company directors, higher earners and anyone in Marylebone 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 choose Bohzo Accountants in Marylebone?
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 — Marylebone to HMRC without a single appointment.
Compare our fixed self assessment tax returns fees
| Your situation | Fixed 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.
Online accountants vs the high street
A high-street accountant in Central London typically bills by the hour, meets by appointment and prices each extra question. 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 Marylebone at fees a walk-in office can't match.
There's no office to fund in Marylebone 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.
Self Assessment Tax Returns in Marylebone: 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 Marylebone as anywhere — by design
We built this service so that someone in Marylebone never pays a premium — or accepts worse service — because of geography. Same specialists, same published fees, same speed, wherever in Central London you are.
Being in London, Marylebone 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 Marylebone
Marylebone sits in the borough of Westminster (Marylebone ward), W1U postcode area. If you're comparing local options from Marylebone, it helps to see the map the way we do — one service area, no travel involved.
| Nearby | Distance from Marylebone | Direction |
|---|---|---|
| Marylebone High Street | 0.1 miles | east |
| Baker Street | 0.4 miles | north-west |
| West End of London | 0.4 miles | south |
| Bryanston and Dorset Square | 0.4 miles | west |
| Marble Arch | 0.5 miles | south-west |
Distances are straight-line, between place centres. Every listed place — and everywhere between — is served online at the same fixed fees.
Self Assessment Tax Returns deadlines
| Date | What happens |
|---|---|
| 5 Oct 2026 | Deadline to register for Self Assessment if you're newly self-employed |
| 31 Oct 2026 | Paper return deadline (almost nobody should be filing on paper) |
| 31 Jan 2027 | Online filing deadline and balancing payment due — miss it and HMRC charges an automatic £100 penalty |
| 31 Jul 2027 | Second payment on account due, if you make them |
Marylebone 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 Marylebone?
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 Marylebone or anywhere else in Central London.
I searched "self assessment near me" — is this service really local to Marylebone?
Marylebone 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 Marylebone 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 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.
Things worth knowing before your next filing
Disposing of crypto — selling, swapping one coin for another, spending it — is a capital gains event, and staking or mining income is usually income. Exchanges share data with HMRC, so the tax position exists whether or not it's been calculated.
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.
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.
Directors paying themselves a salary still need a PAYE scheme and RTI submissions, even in a one-person company. It's a five-minute monthly task with software — and a recurring penalty generator without it.
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.
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.
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 Marylebone — is decoration.
The businesses that struggle with tax bills rarely have a tax problem; they have a timing problem. Knowing the bill in September instead of January — which filing early gives you for free — is the difference between planning and scrambling.
General guidance, not personal advice — thresholds and dates change. For advice on your own position in Marylebone, message us and we'll answer against your actual numbers.
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