R&D tax credit claims in Mayfair — from £999, fixed.
R&D tax relief for Mayfair companies doing genuine development work — software, engineering, manufacturing, formulation. We prepare claims built to survive HMRC's much tougher regime, at a fixed fee. Serving Mayfair and nearby West End of London, Oxford Circus, St James's.
R&D Tax Credits for Mayfair — done properly, entirely online
Companies in Mayfair solving technical problems without an off-the-shelf answer — software teams, engineers, manufacturers, food and materials businesses. Not for anyone chasing a claim they don't genuinely have.
What's included
- Honest eligibility assessment first — we don't file weak claims
- Technical narrative written to HMRC's current expectations
- Qualifying expenditure identified and computed correctly
- Additional Information Form and CT600 amendment filed
- Support if HMRC opens an enquiry into the claim
Why Mayfair businesses pick Bohzo
Your fee is agreed before any work starts and never changes mid-job. No hourly billing, ever.
Records in over the portal or WhatsApp, approvals from your phone, filings sent electronically — Mayfair to HMRC without a single appointment.
Bohzo Accountants trades as Bohzo Ltd, registered in the UK under Company No. 15031604 — check us on Companies House any time.
We track every HMRC and Companies House date that applies to you, so you don't have to.
Compare our fixed r&d tax credits fees
| Your situation | Fixed fee |
|---|---|
| Eligibility review — do you have a claim? | £0 |
| Full claim: technical narrative + computation + filing | £999 |
| Larger claim (qualifying spend over £100k) | £1,999 |
| HMRC enquiry support on an existing claim | £POA — fixed quote after review |
“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 Mayfair quote low, bill by the hour and reserve the right to charge for every phone call. Our model inverts that: the fee is fixed and written down before work begins, questions are part of the service rather than billable events, and everything happens online — the reason Mayfair pays the same as everywhere else.
There's no office to fund in Mayfair 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.
R&D Tax Credits in Mayfair: from first message to filed
A WhatsApp message from Mayfair 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 Mayfair. 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 Mayfair as anywhere — by design
Whether your business trades from Mayfair itself or you simply live there and work everywhere, the tax rules are national — and so are we. Mayfair clients get the same preparers, the same fixed fees and the same deadline tracking as every other town on this site.
London clients in Mayfair 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 Mayfair
Mayfair sits in the borough of Westminster (West End ward), W1K postcode area. Geography still shapes who people call, so here's Mayfair's: the same fixed-fee service covers every place on this list, at the same price.
| Nearby | Distance from Mayfair | Direction |
|---|---|---|
| West End of London | 0.4 miles | north-west |
| Oxford Circus | 0.4 miles | north-east |
| St James's | 0.5 miles | south-east |
| Piccadilly | 0.5 miles | east |
| Marble Arch | 0.5 miles | west |
Distances are straight-line, between place centres. Every listed place — and everywhere between — is served online at the same fixed fees.
Mayfair r&d tax credits FAQs
Does my work actually qualify as R&D?
The test is whether you sought an advance in science or technology by resolving uncertainty a competent professional couldn't readily solve. Routine development doesn't qualify; genuine technical problem-solving often does. Our free eligibility review gives you a straight answer before you spend anything.
How much is a claim worth?
Under the merged scheme, broadly a 20% expenditure credit on qualifying spend — staff costs, subcontractors, software, consumables. A company with £100,000 of qualifying spend sees a benefit in the region of £15,000–£16,000 after tax.
What if HMRC opens an enquiry?
Enquiry rates have risen sharply, which is why our narratives are written to answer HMRC's questions before they're asked. If an enquiry does open, we respond on your behalf — including for claims other advisers prepared.
Do I need to visit an office in Mayfair?
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 Mayfair or anywhere else in Central London.
I searched "r&d claim near me" — is this service really local to Mayfair?
Mayfair 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 Mayfair 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 r&d claim?
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.
The short version of the rules that matter
The July payment on account is the forgotten deadline: no return is due, but money often is. We diary it for every client it applies to, because HMRC charges interest from the day it's late even though nothing was "filed" late.
Most self-employed people under-claim. Use of home, mileage at HMRC's approved rates, phone and broadband apportionment, trade subscriptions, training that updates existing skills — legitimate deductions left on the table add up to real tax overpaid year after year.
Crypto traders rack up hundreds of taxable events without noticing, because every swap counts as a disposal. Specialist software plus the pooling rules turns the mess into a number; guessing does not.
MTD for Income Tax starts with the £50,000+ income group in April 2026, with lower bands following. Quarterly digital updates sound worse than they are — with software doing the bookkeeping, the quarters largely take care of themselves.
CIS deduction statements go missing constantly — contractors change, emails vanish. HMRC's records can fill some gaps, but the fastest refunds belong to subcontractors who keep every monthly statement. If you're in construction around Mayfair, that one habit is worth real money.
New companies often have a long first accounting period, which can mean two corporation tax returns for one set of accounts. It's normal, but it's exactly the kind of thing that's cheaper to get right first time than to unpick.
HMRC receives data directly from online platforms about sellers' income. If a side hustle has grown past the £1,000 trading allowance, coming forward first is always cheaper than being written to — penalties scale with how the disclosure starts.
The best salary-dividend mix moves with each year's thresholds and your other income. Setting it once in April — rather than guessing through the year — is one of the simplest pieces of planning a director can do.
General guidance, not personal advice — thresholds and dates change. For advice on your own position in Mayfair, message us and we'll answer against your actual numbers.
R&D Tax Credits near Mayfair
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