GST is Jersey's own sales tax, charged at 5%. Jersey, Channel Islands is a Crown Dependency, so it sits outside the UK and outside the EU and runs GST instead of VAT. That means none of the UK VAT registration process applies here. The Jersey route is shorter, but it has its own trigger point and its own paperwork.
Registration itself is a form. The work sits either side of it: knowing when you are obliged to register, and being ready for what registration turns on the day it takes effect.
When registration becomes compulsory
You must register once your taxable turnover exceeds £300,000 in any rolling 12-month period. Rolling is the word that catches people. It is not your accounting year and not the calendar year. Every month you add the latest month and drop the month that fell out of the window, then look at the total.
Below £300,000 registration is voluntary. That is a real decision rather than a formality, and it turns on who your customers are. The Jersey GST threshold guide works through the maths and the voluntary case in detail.
Watch the trend, not just the total. A business at £270,000 and growing is far closer to registration than the figure suggests, because the obligation lands on the month the rolling total tips over.
What you need before you start
Half-finished applications are the main reason registration drags. Have these to hand before you open the form.
| Have ready | Why Revenue Jersey want it |
|---|---|
| Legal name and trading name | Sole trader, partnership or company changes how you are registered |
| Company or registration number, if incorporated | Ties the GST record to the right legal entity |
| Business address and contact details in Jersey | Correspondence and the registration certificate |
| Date trading started | Sets the period Revenue Jersey assess your turnover over |
| Rolling 12-month taxable turnover figures | Evidence of the month you crossed the threshold |
| Expected turnover for the next 12 months | Used to decide the return frequency you are given |
| What you actually sell | Determines the mix of standard-rated, zero-rated and exempt supplies |
| Business bank account details | Payments and any repayments |
| A gov.je online services account | The application and every later return run through it |
The turnover figures are the item most businesses cannot produce on the spot. If your books are behind, that is the job to do first, because the registration date depends on numbers you can stand behind.
The registration walkthrough
The sequence below is the order the work actually happens in, rather than the order the screens appear.
- Step 1. Pin down your threshold date. Run the rolling 12-month total month by month and identify the first month it exceeded £300,000. That month drives everything else.
- Step 2. Set up or sign in to gov.je online services. Registration is done through Revenue Jersey's online services. If nobody in the business has an account, create one before you need it.
- Step 3. Complete the GST registration application. Enter the entity details, trading start date, turnover figures and a plain description of what you sell.
- Step 4. Check the entity details against your other records. The name on the GST record should match the name on your Companies Registry entry and your bank account. Mismatches cause more delay than anything else in the process.
- Step 5. Submit and keep the confirmation. Save the reference and the date. Both matter if a question comes up later about when you registered.
- Step 6. Note the effective date and the return frequency Revenue Jersey give you. Most businesses file quarterly, but the exact frequency depends on how Revenue Jersey register you, so take it from your confirmation rather than assuming.
- Step 7. Switch your invoicing on the effective date, not before. Charging GST early is as much of a problem as charging it late.
- Step 8. Set up the bookkeeping side. Turn GST on in your accounting software, code your sales and purchases correctly from day one, and diarise the first return.
Penalties, exact deadlines and the current application form all sit with Revenue Jersey and change from time to time. Check the current position on gov.je before you rely on any timing.
What changes once you are registered
Registration changes four things at once, and all four start on the effective date.
- Your prices. Standard-rated sales carry 5% GST. Decide whether you absorb it or add it before the date arrives, and tell customers.
- Your invoices. They need to show the GST properly so your business customers can reclaim it.
- Your purchases. GST you pay on business costs becomes reclaimable input tax, which is the upside of registering. That only works if the purchase records are clean.
- Your calendar. Returns are due to Revenue Jersey on a fixed cycle from now on. Filing your Jersey GST return covers what each return asks for and how the figures are built.
Not everything you sell is necessarily standard-rated. Before your first return, work out where each income stream sits across standard-rated, zero-rated and exempt supplies, because that decision drives both what you charge and what you can reclaim.
Keep the records behind every figure for at least six years. GST sits alongside the rest of your obligations on the island, which are set out in Jersey tax explained.
If registration has just landed on you, our monthly bookkeeping service sets the GST coding up correctly and files the returns for a fixed fee. Tell us where you are and we will tell you what is involved.
Common questions
How do I register for GST in Jersey?
You register with Revenue Jersey through the online services on gov.je. You will need your business details, your trading start date, the turnover figures that took you over the threshold, and your bank details. Revenue Jersey confirms your registration and the return frequency you have been given.
When must a Jersey business register for GST?
Registration is compulsory once your taxable turnover exceeds £300,000 in a rolling 12-month period. Below that you can register voluntarily. The test is rolling, not tied to your financial year, so it can be crossed part way through a year.
Can I register for GST voluntarily in Jersey?
Yes. Voluntary registration below £300,000 lets you reclaim GST on your costs and can suit a business selling mainly to other registered businesses. The trade-off is charging 5% to customers who cannot reclaim it, plus the ongoing returns.
How long does GST registration take in Jersey?
Timescales vary with how complete your application is and how busy Revenue Jersey are. Apply as soon as you can see the threshold approaching rather than after you have crossed it, and check the current guidance on gov.je.
What happens after I am registered for GST?
You start charging GST at 5% on your standard-rated sales, issue compliant invoices, keep the underlying records for at least six years, and file returns to Revenue Jersey on the frequency you were given at registration.
General guidance for Jersey businesses, not advice on your own position. Thresholds, forms and deadlines are set by Revenue Jersey and change, so confirm the current position on gov.je or ask us to handle the registration with you.