Jersey, Channel Islands runs GST at 5% rather than VAT, and the return that comes with it is short. That is the trap. A short form invites a rushed submission, and the numbers on it come straight out of your bookkeeping. If the books are wrong, the return is wrong, and the form gives you nothing that would tell you so.
The mechanics are worth understanding even if someone else files for you, because the review takes ten minutes once you know what each figure represents.
What the return actually asks for
Three things, in substance. The value of your sales for the period and the GST charged on them. The GST you paid on business purchases. And the net figure that falls out of the two.
Everything difficult happens before the form. Deciding which sales are standard-rated, which are not, and which purchase GST you are entitled to reclaim is the real work. The typing is five minutes.
Your filing frequency was set when Revenue Jersey registered you. Most businesses are quarterly. Take yours from your registration confirmation rather than assuming, and check the current deadlines on gov.je.
A worked return, line by line
Here is a full quarter for an illustrative Jersey trading company. Every figure below is made up for the example. Use the structure, not the numbers.
| Line | Net | GST at 5% | What it is |
|---|---|---|---|
| Standard-rated sales | £82,000 | £4,100 | Output tax charged to customers |
| Zero-rated sales | £11,000 | £0 | Taxable, but at 0%. Still reported |
| Exempt income | £4,000 | — | Outside the GST charge entirely |
| Total output tax | — | £4,100 | GST you owe on sales |
| Stock and materials purchased | £38,000 | £1,900 | Input tax on goods for resale |
| Overheads and services | £12,000 | £600 | Input tax on running costs |
| Import GST paid at the frontier | £6,000 | £300 | Input tax on imported goods |
| Entertaining a client | £800 | £0 | Commonly blocked, so not reclaimed here |
| Total input tax | — | £2,800 | GST you can reclaim |
| Net GST payable | — | £1,300 | Output tax £4,100 less input tax £2,800 |
Two lines in that table do the teaching. The zero-rated sales carry no GST but still belong on the return, because a zero-rated supply is taxable at 0% rather than outside the system. The entertaining cost went through the bank with GST on it and is still not reclaimed in this example. Both are coding decisions made months before the return, in the bookkeeping.
Had the import and stock purchases been larger, total input tax would have exceeded output tax and the same return would produce a reclaim instead. That is normal in a quarter with heavy buying, and it is one reason cash-hungry businesses register voluntarily.
What you can and cannot reclaim
Input tax is reclaimable when the cost is a genuine business cost, you hold an invoice showing the GST, and the purchase supports taxable supplies you make. Fail any of the three and the reclaim does not stand up.
- No invoice, no reclaim. A bank line on its own is not evidence of GST paid.
- Private use has to come out. A phone or vehicle used half personally is not fully reclaimable.
- Some costs are blocked regardless of the business purpose. Business entertaining is the example most often raised, and the current list sits on gov.je.
- Costs tied to exempt income do not carry a reclaim, which matters if you have a mix of income. The split is set out in standard-rated, zero-rated and exempt supplies.
- Import GST counts as input tax when you are registered and the goods are for the business. GST on imports covers the frontier side.
If output tax and input tax are new terms, the Jersey bookkeeping glossary defines them alongside the rest of the vocabulary.
The records behind the numbers
A GST return is a summary of your books, and Revenue Jersey can ask to see what it summarises. Keep records for at least six years: sales invoices, purchase invoices and receipts showing GST, bank statements, and the GST control account in your accounting software.
The practical test is whether you could rebuild the return from the underlying documents a year from now without remembering anything. If not, the record-keeping needs tightening before the next quarter, not after a query arrives.
Where GST returns go wrong
- Leaving zero-rated sales off. They belong on the return even though the GST is nil.
- Reclaiming GST on costs that never carried any. A supplier who is not registered does not charge GST, so there is nothing to reclaim.
- Missing import GST. It is real input tax and is often sitting unclaimed in a courier invoice.
- Filing from an unreconciled bank. If the bank is not reconciled, the sales figure is a guess.
- Treating a nil period as no obligation. A quiet quarter still needs its return.
- Spending the GST. The output tax you collect is not your money. Move it out of the trading account as it comes in.
Most of these are bookkeeping problems that only become visible at filing time. We prepare and file Jersey GST returns as part of our monthly bookkeeping service, so the coding is right all quarter rather than reconstructed in the last week. Send us your details for a fixed quote.
Common questions
How do I file a GST return in Jersey?
You file to Revenue Jersey through the online services on gov.je. The return reports the GST you charged on sales for the period, the GST you paid on business costs, and the difference between the two. Most businesses file quarterly, but the exact frequency depends on how Revenue Jersey registered you.
How often are Jersey GST returns due?
Most Jersey businesses file quarterly. Your own frequency is set when Revenue Jersey register you, so take it from your registration confirmation rather than assuming. Check the current deadlines on gov.je.
What is output tax and input tax?
Output tax is the GST you charge your customers on standard-rated sales. Input tax is the GST you pay suppliers on business purchases. Your return nets one against the other: output tax minus input tax gives the amount payable to Revenue Jersey, or reclaimable from them.
Can I get a GST refund in Jersey?
Yes. If the GST you paid on business costs in the period exceeds the GST you charged on sales, the return produces a net reclaim rather than a payment. It is common in a period with heavy equipment or stock purchases.
What records do I need to support a GST return?
Sales invoices, purchase invoices and receipts showing the GST, bank records and your GST account in the books. Keep them for at least six years, because the return is only as defensible as the records behind it.
What happens if I file a Jersey GST return late?
Late returns and late payments can attract penalties and interest from Revenue Jersey. The amounts and the rules change, so check the current position on gov.je and file on time rather than relying on a nil-return assumption.
General guidance for Jersey businesses, not advice on your own return. Deadlines, penalties and the reclaim rules are set by Revenue Jersey and change, so confirm the current position on gov.je before you file.