The "cheap and tax-free" era of small imports is over — re-cost everything, and build the FX buffer into your price

This article is internal cost-planning guidance, not case-specific tax or customs advice — verify current rates and thresholds against official announcements and with your broker.

The rules changed — in two steps

For years, low-value goods entered Thailand carrying almost no tax — the root of the pre-order-from-China business model and thousands of small import shops. That rulebook has been dismantled in two steps:

1. July 2024 — low-value imports (previously under the threshold) became VAT-liable, levelling the field with domestic sellers who always had to charge it.
2. 1 January 2026 — the de-minimis duty exemption ended: low-value goods are now assessed for duty at their tariff line like everything else.

Together they mean the game priced at "list price × rate" no longer exists — a business still costing the old way is pricing against a world that has ended.

The new costing has to be complete

Under the new rules, one unit's true cost builds in compounding layers — CIF (goods + freight + insurance) → duty at the tariff line × CIF → VAT on the CIF-plus-duty base, not on the goods price alone → every Thai-side charge (D/O, port, clearance, trucking) → allocated per unit.

Three questions every small importer now has to answer per shipment:

• Which products are still worth importing — items that were profitable only because they were tax-free may lose money once duty + VAT are counted; that must be known before ordering, not on arrival
• Do minimum prices need to move — true per-unit cost is the base of the lowest price that still meets target margin (cost ÷ (1 − target GM))
• How much does FTA preference help — much of what comes from China/ASEAN can clear at 0% duty with a Form E/D; now that duty bites again, that right is worth real money

FX risk: the variable SMEs carry without choosing to

Between order day and transfer day the rate can move several percent — and most small firms do not hedge (the EFIGE survey in Europe found only about one in ten using real financial instruments against currency risk). Thai SMEs are no different: full exposure is the default.

The workable playbook without touching financial markets:

1. Use your bank's SELLING rate for the transfer you will actually make — not the news mid-rate — and date-stamp it.
2. Split the cost in two — the FX-linked part (CIF, duty, VAT on CIF) and the fixed-baht part (Thai-side charges). When the rate runs, only the first part moves; stressing the whole cost produces a buffer too fat to price competitively.
3. Pre-compute "per unit at ±5% / ±10%" before quoting — and price against the risky side (a weaker baht = costlier goods) from day one.

The survivors of the new rules see their real costs first

This rule change does not kill small import businesses — it kills the ones that do not know their own true cost. With taxes back in the equation, the gap between complete costing and rough costing becomes several points of margin on every order — and the complete-costing side also learns first which products to stop ordering and which to move to a supplier with Form D/E.

A tool built for the new rules

Landed Cost Per Unit — Import Costing (Thailand Edition) was built for exactly this: one shipment header plus SKU lines in, true to-warehouse cost per unit out — every layer included (with the cascaded VAT-on-duty that manual calculations miss most), a VAT-registration switch, an FTA switch, per-unit columns at rate −10% to +10% with the FX-linked part already separated from fixed baht, and the minimum selling price at your target GM on every line. One purchase includes both the Thai edition and the English (Thailand) edition.

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