How to Register for VAT Online: Step-by-Step Guide 2026/27
A practical walkthrough of registering for VAT online via HMRC's Government Gateway in 2026/27 -- documents needed, choosing your effective date and accounting scheme.
Why and When You Need to Register for VAT
Value Added Tax registration becomes compulsory once your taxable turnover -- the total value of everything you sell that is not VAT-exempt -- exceeds £90,000 in any rolling 12-month period (not just your accounting year). You must also register if you expect to exceed £90,000 in the next 30 days alone, for example if you have just won a large contract.
Many businesses also register voluntarily below the threshold. This can make sense if you sell mostly to other VAT-registered businesses (who can reclaim the VAT you charge them) and you want to reclaim input VAT on your own costs, such as equipment, stock, or professional fees.
Whichever route applies to you, the mechanics of registering online are the same. This guide walks through the process step by step.
Step 1: Gather Your Documents Before You Start
HMRC's online VAT registration form does not save progress indefinitely, so it pays to have everything ready before you begin. You will typically need:
- Your Unique Taxpayer Reference (UTR) from Self Assessment or Corporation Tax
- Your National Insurance number (sole traders and partners) or company registration number (limited companies)
- Business bank account details
- An estimate of your annual taxable turnover
- Details of any other businesses you own or have owned in the past two years
- The date you started (or will start) trading
If you do not already have a Government Gateway account, you can create one as part of the process, but it adds an extra verification step, so it is worth setting this up in advance if you can.
Step 2: Start the Application via Government Gateway
VAT registration is done through the "Register for VAT" service on gov.uk, accessed via your Government Gateway business tax account. Most applicants use the online service rather than the paper VAT1 form, which is now reserved for a small number of exceptions (for example, some overseas businesses or those applying for certain exemptions).
VAT Calculator
Add or remove VAT from any amount. Supports 20%, 5% and 0% UK VAT rates.
Use the VAT calculator to check how VAT will affect your pricing before you register.The online form asks about your business structure (sole trader, partnership, limited company), your turnover history and forecast, your business activities, and your bank details for any repayments HMRC owes you.
Step 3: Choose Your Effective Date of Registration
The effective date of registration (EDR) is the date from which you are legally required to charge and account for VAT -- it is not the same as the date your VAT number is issued.
For compulsory registration, the EDR is set by the rules:
- If you exceeded the threshold looking backwards over 12 months, your EDR is the first day of the second month after the month you went over the threshold.
- If you expect to exceed the threshold in the next 30 days alone, your EDR is the date you realised this, not a later date.
For voluntary registration, you generally have more flexibility and can request a future EDR that suits your business, for example the start of a new accounting period or contract.
Getting the EDR wrong -- particularly for compulsory registration -- risks penalties for late registration, calculated based on how late you were and how much VAT should have been charged in the meantime.
Step 4: Choose a VAT Accounting Scheme
At registration, HMRC will ask (or you can separately apply) which VAT accounting scheme you want to use. The three most common options for smaller businesses are:
| Scheme | Who it suits | Key feature |
|---|---|---|
| Standard VAT accounting | Most VAT-registered businesses | Account for VAT on invoices issued and received, regardless of payment date |
| Flat Rate Scheme | Turnover up to £150,000 (excluding VAT) | Pay a fixed percentage of gross turnover instead of tracking input VAT on every purchase |
| Cash Accounting Scheme | Turnover up to £1.35 million | Account for VAT only when you are actually paid or you pay a supplier, easing cashflow |
The Flat Rate Scheme simplifies bookkeeping considerably but can leave some businesses paying more VAT overall if they have significant reclaimable input VAT, particularly capital purchases. The cash accounting scheme is popular with businesses that experience late payment from customers, since you are not paying VAT to HMRC on money you have not yet received.
Step 5: Submit and Wait for Confirmation
Once submitted, HMRC reviews the application. Straightforward applications with clean identity checks are often processed within a couple of weeks, but HMRC's own target allows up to around 30 working days, and applications requiring further evidence (for example, proof of trading activity or company formation documents) can take longer.
During this waiting period you are in a slightly awkward position if your EDR has already passed: you are legally VAT-registered and liable for VAT, but you do not yet have a VAT number to put on invoices.
What to do in the meantime:
- Increase your prices to reflect the VAT you will need to account for, but do not show VAT as a separate line or use the words "VAT invoice" until your number arrives.
- Keep records of the VAT-inclusive amounts you have charged so you can reissue correct VAT invoices retrospectively once your number comes through.
- Continue to reclaim input VAT on your purchases from your effective date, provided you have valid receipts, even before you have a VAT number.
Step 6: What Happens After Registration
Once approved, HMRC issues a VAT registration certificate showing:
- Your unique VAT registration number (nine digits)
- Your effective date of registration
- The date your first VAT return and payment are due
You must then set up Making Tax Digital (MTD) compatible software to keep digital VAT records and submit returns. MTD is not a separate registration step -- it is a software and record-keeping requirement that applies automatically once you are VAT-registered.
Your first VAT return typically covers a period ending roughly three months after your effective date, with payment due one calendar month and seven days after the end of that period. Missing this first deadline can trigger HMRC's penalty points system for late VAT returns, so it is worth diarising it as soon as your certificate arrives.
Common Mistakes When Registering for VAT Online
- Underestimating the processing time and starting to add VAT lines to invoices before the number arrives, which can confuse customers and cause reconciliation problems.
- Choosing the wrong accounting scheme without comparing the cashflow effect of standard accounting versus cash accounting, especially for businesses with slow-paying customers.
- Missing the compulsory registration deadline by not monitoring rolling 12-month turnover closely enough, leading to backdated liabilities and penalties.
- Forgetting to arrange MTD software in good time, leaving a last-minute scramble before the first VAT return is due.
- Not informing existing customers and suppliers promptly once VAT registration takes effect, which can cause invoicing disputes.
Sources
- HMRC: Register for VAT
- HMRC: VAT registration thresholds
- HMRC: VAT Flat Rate Scheme
- HMRC: Making Tax Digital for VAT
Frequently asked questions
Do I need a Government Gateway account to register for VAT?
Yes. You need a Government Gateway user ID and password to register for VAT online. If you do not already have one, you can create one during the registration process on gov.uk -- you will need your email address and some personal or business identification details.
How long does VAT registration take?
HMRC's standard target is around 30 working days, though many straightforward applications are processed faster and some more complex ones take longer, especially if HMRC needs to verify your identity or business details. You cannot charge VAT until you receive your VAT number, though you must still account for VAT from your effective date of registration.
What is the VAT registration threshold for 2026/27?
You must register for VAT if your taxable turnover exceeds £90,000 in any rolling 12-month period, or if you expect to exceed £90,000 in the next 30 days alone. You can also register voluntarily below this threshold if it benefits your business, for example to reclaim input VAT.
Can I charge VAT before I receive my VAT number?
No, you cannot show VAT as a separate line on invoices until your VAT number arrives. Instead, increase your prices to account for the VAT you will owe and issue a normal invoice. Once your VAT number arrives, reissue proper VAT invoices to those customers so they can reclaim the VAT if they are VAT-registered themselves.
What is the effective date of registration?
The effective date of registration (EDR) is the date from which you are legally VAT-registered and must start charging and accounting for VAT, even if your VAT number has not yet been issued. For compulsory registration it is fixed by the rules on when you crossed the threshold; for voluntary registration you can usually choose a future date.
Which VAT accounting scheme should I choose at registration?
It depends on your turnover and cashflow. The standard scheme suits most VAT-registered businesses with regular input VAT to reclaim. The Flat Rate Scheme simplifies bookkeeping for businesses with turnover up to £150,000 by applying a fixed percentage to gross turnover. Cash accounting scheme, available up to £1.35 million turnover, helps cashflow because you only account for VAT when you are actually paid.
What happens immediately after VAT registration is approved?
HMRC issues a VAT registration certificate confirming your VAT number, effective date of registration, and the date your first VAT return is due. You must set up Making Tax Digital (MTD) compatible software, start keeping digital VAT records, and begin charging VAT on taxable supplies from your effective date.
Do I need to register for Making Tax Digital separately from VAT registration?
No separate registration is required -- MTD for VAT is built into the standard VAT registration process. However, you must ensure you have MTD-compatible software in place before your first VAT return is due, since paper or spreadsheet-only VAT returns are no longer accepted for MTD-mandated businesses.
What are the most common mistakes when registering for VAT online?
Common mistakes include choosing the wrong effective date, underestimating how long registration takes and starting to charge VAT before the number arrives, picking a VAT accounting scheme without comparing the cashflow impact, and forgetting to register for MTD-compatible software before the first return deadline.
What documents do I need before starting VAT registration?
You typically need your Unique Taxpayer Reference (UTR), business bank account details, an estimate of your annual turnover, details of any associated businesses, your company registration number if you are a limited company, and your National Insurance number if you are a sole trader.
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