The return leg: declaring, shipping and getting it home.

The principle, stated once

Declare what you bought. That single instruction resolves almost every question in this guide. Customs authorities in the Gulf are not hostile to travellers arriving with shopping; they process it constantly, the duty on most goods is modest, and a declared item moves through in minutes. What creates a problem is an undeclared high value item found in a bag, an invoice that does not match the goods, or a traveller who has clearly been advised to be clever. The penalties for that are out of proportion to any saving, and they attach to the person, not the purchase.

We are asked, occasionally, how to stay below a threshold: to split a purchase across several invoices, to have a shop write a lower value, to spread items among family members' bags, or to carry cash rather than use a card. We do not give that advice and no adviser worth retaining will. Beyond the legal exposure it is practically self defeating, because it destroys the documentation you need for a VAT refund, an insurance valuation, a warranty claim and any future sale. The lawful route is also the convenient one.

Leaving Thailand

Three things happen on the Thai side. The VAT refund, if you are claiming it, requires the forms issued at the point of sale, the goods available for inspection, and time at the airport; jewellery, gold and watches must be presented to customs officers before check in, so keep them out of the checked bags. Export restrictions apply to a narrow but important set of goods: antiques and Buddha images require a licence from the Fine Arts Department, agarwood and other CITES listed material may require permits, and wildlife products including ivory are prohibited outright. And Thailand, like every country, sets a threshold above which currency must be declared on exit.

On that last point the guidance is simply to comply. Both Thailand and every Gulf state require declaration of currency and bearer instruments above a set figure, in both directions, and the figures change. Find out the current number from the customs authority concerned and declare if you are near it. Better still, do not carry meaningful sums: pay by card or bank transfer, which is what the shops in this guide expect, and which leaves you with the paperwork you will want anyway.

Arriving in the Gulf

The GCC states operate a common customs union with a shared external tariff, commonly 5 percent on most goods, and each state then applies its own value added tax where it levies one, its own personal and gift allowances, and its own prohibitions. The practical consequences for a returning family are that a modest quantity of personal effects and gifts generally passes within the allowance, that high value single items such as watches and jewellery frequently do not, and that the details differ enough between Riyadh, Dubai, Doha, Kuwait City, Manama and Muscat that no guide should state them as settled.

Some categories carry rules beyond duty. Gold and precious metals above a threshold attract declaration requirements in several states. Medicines, including ordinary items bought at a Thai pharmacy, are controlled and some common preparations are restricted or prohibited; check before packing. Alcohol is prohibited in some Gulf states and restricted in others. Food products may require compliance with import rules if the quantity looks commercial. And anything derived from protected species is prohibited everywhere and treated as a serious offence.

The paperwork to keep

Assemble a single folder for the trip, physical or on a phone, and put everything in it as you go rather than at the airport. It should hold the original tax invoices, not card slips, in the buyer's name; the VAT refund forms; laboratory reports for any gemstone; warranty cards and serial numbers for watches; the gold shop's receipt stating weight, purity and price; export licences where required; and shipping documents. Photograph the folder. If the family is travelling in several parties, keep the documents with the person carrying the goods, which sounds obvious and is the most common failure.

• Original tax invoices in the purchaser's name, matching the goods exactly.
• VAT refund forms, stamped, with the goods accessible in hand luggage.
• Independent laboratory reports for stones, and the gold receipt showing baht weight and 96.5 purity.
• Warranty cards, boxes and serial numbers for watches.
• Export licences for antiques or Buddha images, and permits for CITES listed material.
• Shipping paperwork with the declared value equal to the price actually paid.

Shipping the large purchases

Anything bulky, fragile or heavy should be shipped rather than carried, and Thailand does this well. Furnishing fabric by the roll, furniture, large porcelain and multiple hampers are all straightforward. Three routes exist. The shop's own export department is the simplest where the shop is large enough to have one, and the established silk and craft houses do. A licensed international freight forwarder is right for volume or for furniture, and will handle export declarations, packing and insurance. An express courier suits small high value items and is expensive but fast and well tracked.

Whichever route, settle four points in writing before anything leaves the shop. Insurance: is the shipment insured for full replacement value, and by whom. Terms: is the price quoted delivered duty paid, in which case the shipper handles the import duty at the far end, or delivered unpaid, in which case you will be invoiced by the carrier and cannot budget for the amount in advance. Documentation: the commercial invoice must state the true value and match your receipt. And the consignee: shipping to a residential address in the Gulf frequently requires the recipient's identity documents for customs clearance, so name someone who is actually in the country and tell them it is coming.

How our office handles the last week

For clients on a long stay we run the return leg as a task list in the final week rather than as an airport problem. Purchases are collected and consolidated at the hotel and checked against receipts. Anything being shipped goes early, with the paperwork copied to the client and to whoever will receive it. The VAT refund forms are collated into one file with the passports they were issued against. The high value items are separated into hand luggage with their documents. And we tell the client, plainly, what will need to be declared on arrival, because that conversation belongs in a suite in Bangkok and not at a counter in an arrivals hall.

Import allowances, duty rates, prohibited goods and currency declaration thresholds are set by each country and change; verify them before you travel with your own customs authority, for example the Zakat, Tax and Customs Authority in Saudi Arabia, Dubai Customs or the federal authority in the UAE, the General Administration of Customs in Kuwait, the General Authority of Customs in Qatar, Customs Affairs in Bahrain, or the Directorate General of Customs in Oman. On the Thai side, verify export restrictions with the Thai Customs Department and, for antiques and Buddha images, with the Fine Arts Department.

This briefing is general information, not legal, tax or investment advice. Thai rules change frequently and individual cases differ. Verify current requirements with the relevant authorities, including the Immigration Bureau, the Board of Investment, the Land Department, the Department of Business Development and the Revenue Department, and take advice on your own facts before acting.