If you’re running a business—whether you’re a sole trader, in a partnership, or trading through a limited company—VAT registration may not be optional for long.
As soon as your taxable turnover hits £90,000, HMRC expects you to act. But what exactly counts toward that threshold? And what happens if you miss the deadline?
Let’s break it all down in simple terms so you know when to register and how to do it the right way.
When Is VAT Registration Required?
You must register for VAT if either of the following applies:
- Your VAT-taxable turnover exceeds £90,000 in the last 12 months
- You expect your turnover to go over £90,000 in the next 30 days
And here’s something that surprises a lot of people…
If you’re based outside the UK but sell goods or services into the UK, you must register regardless of turnover.
What Counts as VAT-Taxable Turnover?
Your taxable turnover includes almost everything you sell that isn’t exempt or outside the scope of VAT. This includes:
- Standard, reduced-rate, and zero-rated goods or services
- Items hired or loaned to customers
- Business goods used for personal reasons
- Goods or services received in barter, part exchange, or as gifts
- Services from overseas (reverse charge)
- Domestic reverse charge services
- Self-supplied building work over £100,000
Basically, if HMRC could charge VAT on it—it counts.
VAT Registration Deadlines: Don’t Miss Them
Timing is everything when it comes to VAT.
Threshold passed in the past 12 months?
You must register within 30 days of the end of the month in which you exceeded £90,000. Your registration becomes effective from the first day of the second month after you went over.
Example:
Dale is a sole trader. On 7 July 2025, he realises his 12-month taxable turnover has hit £90,000.
He must register by 30 August, and his VAT registration takes effect from 1 September 2025.
Expect to go over in the next 30 days?
You must register by the end of those 30 days. Your registration is effective from the date you realised you’d exceed the threshold.
Example:
Shelly signs a contract on 17 July 2025 to deliver £102,000 worth of goods.
She must register by 16 August, with an effective VAT registration date of 17 July. She’ll need to charge VAT on that contract!
Late to Register?
HMRC will expect you to pay VAT from your effective registration date, even if you didn’t charge it at the time. You may also face late registration penalties—so don’t delay!
If your turnover temporarily exceeds the threshold, you can apply for an exception to avoid registering.
How Do You Register for VAT?
Most businesses can register online via the HMRC website: Register for VAT
You’ll need:
For sole traders and partnerships:
- National Insurance number
- Identity documents (e.g. passport)
- Bank details
- Unique Taxpayer Reference (UTR)
- Annual and estimated taxable turnover
For companies:
- Company registration number
- Bank details
- UTR
- Annual and estimated taxable turnover
In some cases (e.g. joining the agricultural flat rate scheme), you’ll need to register by post.
Should You Register Voluntarily?
If your turnover is below £90,000, you can still choose to register.
This might make sense if:
- You sell zero-rated goods or services
- You buy a lot of goods/services with VAT that you’d like to claim back
But remember—once you’re VAT-registered, you’ll need to charge VAT on your taxable supplies.
Unsure Whether You Should Register?
VAT registration isn’t just about hitting a number—it’s about timing, planning, and understanding how it affects your pricing, cash flow, and admin.
If you’re close to the threshold—or wondering whether voluntary registration could benefit your business—we’re here to help.
Get in touch with Jon or the team today for expert, friendly advice tailored to your business.
If you found this useful, please share it using the icons at the side of the page, or leave a comment below.
Any questions?
If you’d like a meeting or a video call to discuss this, please get in touch with your favourite Liverpool accountant
- You can ring us on 0151 380 8080
- You can email us at gr****@*********************co.uk