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Foreign AI tools and Korean tax invoices — how billing actually works
What most often blocks adoption of a foreign AI tool in practice is neither features nor price but the invoice. Without a Korean tax invoice, accounting has to find a treatment — and at scale that burden exceeds the licence cost.
What to confirm Three alternatives Judgement by scale
The short answer
Paying a foreign tool usually takes one of three forms: card payment to the foreign entity (no Korean tax invoice), payment through a Korean entity or reseller (tax invoice issued), or direct issuance by a foreign company registered locally.
Which one applies can be confirmed before adopting, and if you do not, it comes back from accounting after the first payment. Small amounts can be absorbed; team-level spend cannot.
Five things to confirm before adopting
Three alternatives when no tax invoice is available
| Alternative | How | Limitation |
|---|---|---|
| Buy through a Korean reseller or partner | Contract via a local entity that resells it | Unit price can rise, and not every product has a reseller |
| Switch to a Korean product | Move the job to a domestic equivalent | Features differ, so fit has to be re-evaluated |
| Keep it small and manage the evidence | Pay abroad and evidence with card statements and invoices | Management load rises sharply with scale |
The judgement changes with scale
At individual or small-team scale, this is often not a practical obstacle. Card statements plus invoices carry it.
At team scale it changes. Payment counts rise, renewal dates scatter, and administration becomes real work — the point at which a reseller route or a domestic alternative starts winning on total cost.
For a company-wide rollout, put billing terms into the selection criteria from the start. Choosing on features and then walking back from billing is the most expensive order.
Frequently asked questions
Can we expense it with only an invoice?
The treatment depends on the facts and on tax judgement, so confirm with your tax agent. This post covers what to check at selection stage; it does not determine your tax treatment.
Is a reseller always more expensive?
Not necessarily. Where a local contract, KRW billing and Korean support come with it, total cost can be lower. Compare more than the unit price — include the administrative load.
How do we know which products issue tax invoices?
Asking the vendor directly is most accurate. Product pages state the tax invoice position, but vendor policies change, so re-confirm just before contracting.
Does staying on free tiers avoid this?
With no payment there is no billing question. But free tiers bring training-use and missing-control problems, so handling company data eventually forces a paid tier.
Filter on it
Start from products that issue tax invoices
Every product page in the AI product directory states tax invoice availability, so you can narrow candidates on Korean adoption conditions.