Scenario: a tech startup needs a legal entity within two weeks to sign with a partner. “Fastest incorporation” sounds simple — but two questions must be separated: how long pure registration takes versus how long until real operation. The answers can contradict each other.
Pure registration: Singapore and Hong Kong count in days
Singapore: ACRA incorporation typically completes in 1–3 days with clean documents and no special name approval — 100% online. Hong Kong: Companies Registry + Business Registration (BR) usually takes a few days to a week. Neither has a general foreign-investment approval gate. Vietnam: for foreign investors, the IRC under the Law on Investment 143/2025/QH15 (effective 1 March 2026) takes about 15 working days by statute, then the ERC under the Enterprise Law 2020 (amended by Law 76/2025/QH15, effective 1 July 2025) adds about 3 working days — under a month in theory, but document preparation, seal carving, bank account opening and tax registration usually push reality to 1–2 months.
“Fast” — but enough to run a factory?
The point “fastest” rankings miss: fast incorporation does not mean immediate operation. Trading/services companies in Singapore/Hong Kong: once incorporated you can sign contracts and open accounts (though bank KYC for new companies can still take weeks). But manufacturing: Vietnam, though slower to register, wins on industrial-park ecosystems plus investment incentives; in Singapore/Hong Kong, space and labour costs make large-scale manufacturing nearly unviable — “fast” becomes meaningless if the business model does not fit.
First-year compliance costs: cheap to open, expensive to keep
Singapore/Hong Kong: low upfront registration fees but high annual compliance costs — mandatory company secretary (Singapore), audit, tax filing, registered address maintenance. Vietnam: higher upfront setup costs (advisory, translation, consular legalisation) but generally lower ongoing compliance costs (accounting, audit). Compare 3-year total cost of ownership, not just the registration fee.
Quick comparison
| Criterion | Singapore | Hong Kong | Vietnam (foreign-owned) |
|---|---|---|---|
| Legal-entity registration | 1–3 days (ACRA, 100% online) | Days to a week (Companies Registry + BR) | IRC ~15 days + ERC ~3 days (statutory); 1–2 months in practice |
| Foreign-investment approval | None (except special sectors) | None | Yes — IRC under Law 143/2025 |
| Bank account opening | KYC can take weeks for new companies | Similar to Singapore | 1–2 weeks after ERC + seal |
| Fit for large-scale manufacturing | Limited (high costs) | Limited | Strong (IPs, incentives, labour) |
Recommended actions
1. Need an entity urgently for contracting: choose Singapore/Hong Kong. 2. For manufacturing: do not let “registration speed” override “total operating cost”. 3. Model 3-year total compliance cost before deciding. 4. For Vietnam, prepare IRC/ERC dossiers in parallel to compress real-world time.
Frequently Asked Questions
How long does pure business registration (excluding sectoral licences) take in each place?
Singapore: 1–3 days via ACRA (100% online). Hong Kong: a few days to a week (Companies Registry + Business Registration). Vietnam (foreign-owned): IRC about 15 working days by statute + ERC about 3 working days; the full process usually runs 1–3 months including seal, bank account and tax registration.
Where can you incorporate 100% online, and where is paper still needed?
Singapore allows 100% online incorporation via ACRA. Hong Kong can also file most procedures online. Vietnam: foreign investors still need paper/consular-legalised documents for many items (passports, parent-company business licences and the like) — not fully online yet.
What do first-year compliance maintenance costs look like?
Singapore/Hong Kong: low setup fees but high annual compliance costs (mandatory company secretary in Singapore, audit, tax filing). Vietnam: higher upfront setup costs (advisory, translation, legalisation) but generally lower ongoing compliance costs. Model the 3-year total.
Fast — but enough to run manufacturing?
Not necessarily. Fast incorporation does not mean immediate operation: bank account KYC still takes weeks; and for large-scale manufacturing, Singapore/Hong Kong are constrained by space/labour costs while Vietnam offers industrial-park ecosystems and investment incentives.
What steps does a foreign investor follow to open a company in Vietnam?
Obtain the IRC under the Law on Investment 143/2025/QH15 (about 15 working days), then register the ERC under the Enterprise Law 2020 (amended by Law 76/2025/QH15, about 3 working days), then seal carving, bank account, tax registration and sectoral sub-licences.
When should you choose Vietnam despite slower registration?
When the goal is manufacturing, supply chains or the 100-million domestic market: IRC-linked investment incentives, competitive labour/space costs and the industrial-park ecosystem usually outweigh a few weeks of registration-speed difference.
