Self Assessment tax returns in Carshalton — from £129, fixed.
If HMRC expects a tax return from you, we take the whole job off your plate — prepared and filed online for Carshalton clients at one fixed fee, agreed in writing first. We work with sole traders, landlords and directors across Carshalton and neighbouring Carshalton Village, Wallington Green, Carshalton Central.
Self Assessment Tax Returns for Carshalton — done properly, entirely online
Sole traders, freelancers, landlords, company directors, higher earners and anyone in Carshalton 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 Carshalton?
Every filing date that applies to you goes in our diary the day you join — and we chase the records, not the other way round.
Before we touch anything for a Carshalton client, the fee is in writing — and it stays put. Hourly billing doesn't exist here.
Upload, approve, filed. The whole engagement runs from your phone or laptop, on your schedule rather than office hours.
Bohzo Accountants is a trading name of Bohzo Ltd, Company No. 15031604.
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 South London typically bills by the hour, meets by appointment and prices each extra question. 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 Carshalton.
There's no office to fund in Carshalton 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 Carshalton: from first message to filed
A WhatsApp message from Carshalton 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 Carshalton. 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 Carshalton as anywhere — by design
Whether your business trades from Carshalton itself or you simply live there and work everywhere, the tax rules are national — and so are we. Carshalton clients get the same preparers, the same fixed fees and the same deadline tracking as every other town on this site.
London clients in Carshalton 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.
Where we work around Carshalton
Carshalton sits in the borough of Sutton (Carshalton Central ward), SM5 postcode area. Wherever you are around Carshalton, the numbers below are why "near me" matters less than it used to — every place in the list gets the same service, the same day.
| Nearby | Distance from Carshalton | Direction |
|---|---|---|
| Carshalton Village | 0.2 miles | west |
| Wallington Green | 0.3 miles | east |
| Carshalton Central | 0.4 miles | west |
| Wallington North | 0.5 miles | east |
| The Wrythe | 0.7 miles | north-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 |
Carshalton 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 Carshalton?
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 Carshalton or anywhere else in South London.
I searched "self assessment near me" — is this service really local to Carshalton?
Carshalton 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 Carshalton town centre or the edge of South 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.
From our inbox: what Carshalton businesses ask us
The honest answer changes with your profits. At lower profits, sole trader simplicity usually wins; as profits grow, a limited company's mix of salary and dividends, corporation tax rates and liability protection starts earning its extra admin. We run the actual numbers before recommending either.
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.
The tax-free dividend allowance is down to £500, so almost any director taking dividends now pays some dividend tax — and needs a Self Assessment return to report it. The classic small-salary-plus-dividends strategy still works; it just needs actual planning rather than folklore.
The first tax bill is the hardest because it can arrive with payments on account attached — up to 150% of the year's tax in one go. New businesses that save a quarter to a third of profits from day one never feel it.
Good records aren't about neatness — they're about money: claims you can evidence, VAT you can reclaim, and an accountant who spends billable time on advice rather than sorting. Bank feeds plus a receipts app gets most small businesses to "tidy" in minutes a week.
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.
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.
Company deadlines run off your accounting year end, not the tax year: corporation tax is payable nine months and one day after year end, and the CT600 return is due twelve months after. Confusingly, the payment is due before the return — a sequencing quirk that catches new directors.
General guidance, not personal advice — thresholds and dates change. For advice on your own position in Carshalton, message us and we'll answer against your actual numbers.
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