Guide

Buying shares in a Vietnamese company: when M&A registration is required

A foreign investor buying into a Vietnamese company asks two questions: do I need a new IRC, and must the deal be registered before closing? The answer to the first is usually no. The answer to the second depends on three tests in Article 21(3) of the 2025 Investment Law.

Legal status as of 18 September 2026. Based on the Vietnam Foreign Investment Navigator 2026.

The three triggers for prior M&A registration

The acquisition (or subscription for new shares or capital) must be registered with the investment registration authority before closing if any one of these applies:

  1. the target operates in a conditional market-access sector AND the transaction increases the total foreign ownership percentage. Both limbs are needed;
  2. total foreign ownership moves from 50% or less to more than 50%, or increases while already above 50%;
  3. the target holds a land-use right certificate for land in an island, border or coastal commune, or another area affecting national defence and security.

If none applies, the deal follows route R5. If one applies, it follows route R6. M&A registration is not an IRC: it is a prior confirmation that the foreign investor meets the conditions to become a member or shareholder.

Worked examples

Foreign ownership always means all foreign investors in the target together, before and after the deal.

SituationForeign ownershipResult
Foreign investor A sells its stake to foreign investor B; target in a conditional sector30% before, 30% afterNo increase, so trigger 1 is not met. R5 (if no other trigger)
A foreign fund subscribes for new shares; target in a conditional sector0% before, 30% afterConditional sector and an increase: trigger 1. R6
Foreign buyers take control of a company in an activity classified as not restricted30% before, 60% afterCrosses above 50%: trigger 2. R6
A foreign investor buys a minority stake in a company that holds coastal land0% before, 20% afterSensitive land: trigger 3. R6
A foreign investor buys a minority stake; activity not restricted; no sensitive land10% before, 25% afterNo trigger. R5

Whether the sector is "conditional" for market access is a legal classification for counsel. Check every business line of the target, not just its main business: a restricted secondary line is a common miss. The Route Finder applies these tests to your facts.

Other approvals that run in parallel

Each of these is a separate regime. None replaces another, and a deal that needs no M&A registration may still need one of them:

  • Economic concentration (merger control) notification to the National Competition Commission, if thresholds are met.
  • Securities-law steps if the target is a public or listed company: foreign ownership room, trading code and custody, tender offer, disclosure.
  • Sector regulator approval of the new owner for banking, insurance, securities and some other sectors.
  • State-capital rules if the seller is the State or a State-owned enterprise.

Steps that apply either way

  • Confirm the payment route with the bank before signing. Depending on the target's status, the price moves through the target's DICA or the investor's indirect investment account. See capital and FX.
  • The seller's transfer tax filing may apply even where there is no gain (confirm with counsel).
  • Register the change of members or shareholders with the Business Registration Office, and update beneficial owner information.
  • Check whether existing IRCs and licences of the target need updating. No new IRC is needed merely because a foreigner becomes a shareholder.

Check which of this applies to your own plan.

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General orientation only, not legal advice. Confirm your position with a lawyer licensed in Vietnam before acting.