VAT Services London

VAT, Handled
Without the Guesswork

CX Digits manages VAT registration, quarterly returns, and scheme selection for London businesses — accurate, on time, and backed by a dedicated advisor who actually answers the phone.

Updated July 2026
9 min read
CX Digits Team
£90k
Rolling 12-month registration threshold
30 days
Forward-looking registration trigger
~30 days
Typical HMRC registration turnaround

VAT trips up more London businesses than almost any other part of running a company — not because it's complicated in theory, but because the details keep shifting under you. CX Digits handles VAT registration UK applications, ongoing returns, and everything in between, so you're never guessing what's owed or when it's due.

The thresholds, the deadlines, the scheme that actually fits your business — these change depending on your situation, and most business owners don't have time to keep track of it while they're also trying to run the business itself.

That's the gap we fill. CX Digits works with sole traders, small limited companies, and growing SMEs across London — everything from the first registration application to the quarterly grind of filing returns. If you've landed here searching for a VAT accountant London businesses actually trust, or you're just trying to figure out whether you even need to register yet, this should answer most of what you're wondering.

Get it wrong and the cost rarely shows up straight away, which is exactly what makes VAT risky to ignore. A missed registration deadline after a sudden spike in sales doesn't look like much in month one. A few months later, that gap has turned into backdated VAT owed, penalties, and interest that's been quietly accruing the whole time. CX Digits exists to stop that scenario from ever starting.

VAT services London
Our advisors handle registration, scheme selection, and quarterly filing every period.

Here's the number every business owner needs to know: £90,000. Once your taxable turnover goes past that in any rolling 12-month period, you have to register. Not your tax year, not your financial year — a moving 12-month window that shifts every month. A lot of business owners check their turnover once a year and assume that's enough. It isn't. HMRC is looking at the trailing twelve months at any given point.

There's a second trigger too, and it catches people out even more often. If you know — or reasonably expect — that your turnover is about to cross £90,000 in the next 30 days alone, you have to register immediately, even if your past 12 months are nowhere near the threshold. This tends to hit businesses right after they land a big contract or have a sudden spike in sales.

Some businesses register before they're forced to. Why would you do that voluntarily? Mainly to reclaim VAT on things you're buying for the business, and because being VAT registered can make you look more established when you're pitching to bigger clients who expect it.

"The £90,000 figure is a registration threshold, not a tax-free allowance — knowing the difference is what keeps businesses out of trouble."
— CX Digits VAT Team

Learning how to register for VAT is done through HMRC's online system, and you can either do it yourself or have an accountant apply on your behalf as your agent — which is what most people end up doing once they realise how many small decisions are involved. Here's what's included as standard with every CX Digits registration:

  • Confirming whether registration is mandatory or a smart voluntary move
  • Gathering business details, turnover figures, bank information, and your UTR
  • Choosing the right VAT scheme — Standard, Flat Rate, Cash Accounting, or Annual Accounting
  • Submitting the application through the Government Gateway as your agent
  • Confirming your VAT number, effective date, and first return deadline once approved

The application itself isn't the hard part. Picking the right scheme is, and that's usually where a VAT consultant London businesses use ends up saving people money they didn't realise they were losing.

Is the first £90,000 VAT free? No, and this trips people up constantly. £90,000 is the threshold for registering, not a tax-free allowance. It doesn't mean the first £90,000 you earn is exempt once you're VAT registered. All it does is mark the point where registering stops being optional. Once you're registered, VAT applies going forward from your registration date — it's not retroactive, but it's also not a discount on the turnover you already had.

What does it cost to register? HMRC doesn't charge anything for the registration itself — that part's free. What costs money is doing it properly. If you bring in a VAT accountant London firm to handle the setup, you're usually paying a one-off fee for the registration and scheme selection, then an ongoing fee for quarterly filing after that. Prices vary a lot depending on how complex your business is and how many transactions you're running through it each month.

Most common VAT issues before clients switch to CX Digits
Based on onboarding reviews of new client accounts, 2024–2025
Wrong scheme selected
61%
Late 30-day registration
47%
Return filed late
35%
Exempt vs zero-rated confusion
29%
Free VAT position review
We'll check your last four VAT returns at no cost and flag any scheme or claim issues.

Any UK business — sole trader, partnership, limited company, doesn't matter — needs to register once taxable turnover goes over £90,000 in a rolling 12-month period, or is expected to cross that within the next 30 days. Businesses taking over a VAT-registered business as a going concern, and overseas businesses selling taxable goods or services into the UK, can also be caught by registration rules. Charities and non-profits aren't automatically exempt either — if their taxable activity crosses the same thresholds, they're in the same boat.

Financial & insurance services
Most activity in this sector is VAT exempt.
Education & training
Certain providers fall outside the VAT net.
Health services
Delivered by registered professionals.
Some property transactions
Subject to "opting to tax" rules.

One distinction that catches people out: exempt is not the same as zero-rated. Zero-rated goods — most food, kids' clothing — are technically taxed, just at 0%. So businesses selling zero-rated goods can still register and still reclaim VAT on what they buy. Exempt businesses generally can't.

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Registration is really just the start. From there you're filing VAT returns UK submissions, usually every quarter, through software that complies with Making Tax Digital rules. Each return covers what VAT you charged customers, what VAT you paid on your own purchases, and the net figure you either owe HMRC or can claim back.

Get it wrong or file late and HMRC's penalty points system kicks in, which is honestly why most businesses just hand the whole quarterly process over to a VAT accountant London team rather than try to squeeze it in themselves alongside everything else.

A VAT calculator UK tool is fine for quick jobs — working out a VAT-inclusive price, adding VAT to an invoice, or reversing a gross figure back to net. It won't help you with the bigger decisions though, like which scheme to use or how partial exemption works if your business sells a mix of taxable and exempt things. That's where you actually need advice, not just a calculator.

CX Digits handles the whole thing, start to finish — from your first VAT registration services London enquiry through to years of ongoing filing.

Registration or voluntary sign-up
Working out whether you need to register now, or should register voluntarily.
Scheme selection
Advising on which scheme fits your business, not the default one.
Quarterly filing
VAT returns UK filed on time, every time.
Ongoing support
HMRC queries, inspections, and MTD-compliant bookkeeping.

Whether you're a startup edging toward the £90,000 mark for the first time, or an established company that's outgrown your current setup, CX Digits deals with the VAT side so you're not the one losing evenings to it.

Is VAT registration mandatory in the UK?
Yes, once your taxable turnover exceeds £90,000 over a rolling 12-month period. You also have to register if you expect to cross that threshold within the next 30 days, even without hitting it yet on a 12-month basis.
How do I register for UK VAT?
Through HMRC's online portal, either yourself or via an accountant acting as your agent. You'll need your business details, turnover figures, bank information, and a decision on which VAT scheme to use.
Is the first £90,000 VAT free?
No — £90,000 is just the registration threshold, not a tax-free amount. It tells you when registration becomes mandatory, not what's exempt from VAT.
How much does it cost to register for VAT in the UK?
Registering directly with HMRC costs nothing. Any cost comes from paying an accountant or consultant to handle the application and pick the right scheme for you.
Who is required to be VAT registered?
Any business — sole trader, partnership, or limited company — that goes over £90,000 in taxable turnover in a rolling 12-month period, or expects to within 30 days.
Who is VAT exempt in the UK?
Businesses working in sectors like financial services, some education and health provision, and certain charitable or property-related activities. Exempt businesses generally can't charge VAT or reclaim it.
Is it worth being VAT registered in the UK?
It depends on your costs and your customers. If you spend a lot on business expenses and sell mainly to other VAT-registered businesses, it often makes sense. If your customers are mostly consumers, it's a bigger trade-off.
How long does VAT registration take in the UK?
Around 30 days on average, though it can take longer if HMRC needs more information or the application gets pulled for manual review.
Can you be a ltd company but not VAT registered?
Yes. Incorporating a company and registering for VAT are separate processes. You only need to register once your turnover crosses the threshold, or if you choose to register voluntarily.
How much can you earn before being VAT registered in the UK?
Up to £90,000 in taxable turnover over a rolling 12-month period before registration becomes a legal requirement.
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In this article
1
Overview
2
When registration is mandatory
3
How to register for VAT
4
Thresholds & cost
5
The numbers
6
Who's exempt
7
Filing VAT returns
8
VAT calculator
9
FAQs
Key figures
£90,000
Rolling 12-month registration threshold
30 days
Forward-looking registration trigger
~30 days
Typical HMRC processing time