A virtual office in Thailand is a rented business address with mail and document handling, without a dedicated workspace. To register a Thai limited company with the Department of Business Development, the head office address needs a letter of consent from the owner or person entitled to the premises, a copy of the building's house registration and a location map. A provider that can issue these documents can be used as a registered address. VAT registration, work permits for foreign staff, BOI promotion and corporate bank accounts are different: the authority or bank may inspect the premises and may not accept an address without a real workspace. Ask the provider which uses its documents actually support before you sign.
Last reviewed: 2026-10-04 · General information only, not legal advice for your specific case
Virtual office, serviced office and co-working compared
The label virtual office covers several different products in Thailand. Some providers offer only a mailing address. Others include a consent letter for company registration, a local phone number with call answering, or meeting rooms by the hour. Prices and terms vary widely, so compare the documents each provider can actually issue and what those documents will be accepted for, not just the monthly fee.
A serviced office is a private furnished room under a lease, and co-working is a desk in a shared space. Both give you a real workspace that an officer can inspect, which is why they tend to work better than an address-only arrangement for anything that involves a site visit.
| Option | What you get | Typical fit |
|---|---|---|
| Address-only virtual office | Address, mail receipt, notification of arrivals | Companies with no staff in Thailand yet, or directors working elsewhere |
| Virtual office with registration documents | Consent letter, building house registration copy, map | Registering a new company or moving the head office |
| Co-working / dedicated desk | Shared workspace, sometimes with a lease | Small teams who need a real place to work |
| Serviced office | Private room under a lease | Companies hiring foreign staff or applying for BOI promotion |
Using a virtual office as the registered head office
When you register a limited company with the Department of Business Development, you state the head office address and normally attach proof of the right to use it: a letter of consent signed by the house owner or an authorised signatory of the owning company, a copy of the building's house registration, and a simple location map. Where the consenting party is a company, its own company affidavit is usually attached as well.
The address must have a house number on a house registration. A parcel locker or P.O. box cannot be used. Ask to see a sample consent letter before paying, and check that the person signing it has authority to sign for the building owner.
The head office address appears on the company affidavit and flows into almost every official document afterwards, including financial statement filings, tax returns and contracts. Moving later means registering an amendment and updating every agency, so choose a provider likely to stay in business for the long term.
1. Check the provider's documents
Ask for a sample consent letter, the building house registration copy and the provider's own company affidavit.
2. Review the contract
Look at the term, early termination charges and what happens when the contract ends.
3. Register
File the company registration through the DBD system with the premises documents attached.
4. Keep details consistent
Use the same address for the tax ID, bank account and social security registration.
Can you register for VAT at a virtual office address?
A business whose turnover exceeds the statutory threshold must register for VAT with the Revenue Department and declare a place of business. Revenue officers may inspect the premises to confirm the business operates there, and the outcome depends on the facts of each case. An address with no workspace, no company sign and nobody responsible on site carries a real risk of further questions or refusal.
Once registered, the business must display its VAT registration certificate (Por.Por.20) at the place of business and keep tax records as the law requires. If you choose a virtual office, ask whether other clients have registered for VAT at that address, whether you can put up a sign and store records there, and whether someone will coordinate if an officer visits.
- Ask whether the provider supports Revenue Department site inspections.
- Hold a lease or service agreement showing the same address as the company affidavit.
- Plan where the Por.Por.20 certificate and company sign will be displayed.
- If the risk is high, consider a dedicated desk or serviced office instead.
Work permits, visas and BOI: where a virtual office often falls short
A work permit application to the Department of Employment states where the foreign employee will work, and immigration officers may visit the workplace when considering business visa extensions. If the address is only a mail point with no desk for that employee, the application may be questioned or refused. Companies planning to hire foreign staff should have a real workspace before they apply.
For BOI promotion the requirements depend on the activity. Some activities require a factory or office as described in the project. Using a virtual office while setting up the company may be possible, but plan the move to real premises in line with the conditions on the promotion certificate.
Thai banks run know-your-customer checks on corporate accounts, and some ask for a lease or visit the premises, particularly where directors are foreign nationals. Policies vary by bank and branch, so ask the bank before settling on an address.
Official mail and deadlines you cannot miss
The risk people overlook is official mail: Revenue Department notices, court summonses, or DBD reminders about financial statement filings. These go to the registered head office and many carry response deadlines. If the provider is slow to tell you, the company can miss the deadline and face penalties.
Before signing, agree in writing how quickly mail will be scanned and notified, who may sign for registered mail, how long originals are kept, and how mail that keeps arriving will be forwarded after the contract ends.
- Set scan-and-notify times in working days.
- Name who may accept registered mail and court documents for the company.
- Agree how originals are forwarded and who pays for it.
- Check how scanned documents are protected under the PDPA.
Checklist for choosing a virtual office provider
The cheapest offer is not always the best value. The cost of amending the head office address later, and the risk of missing official mail, can outweigh the difference in rent. Use these questions to compare providers.
- Is the provider a Thai-registered company whose affidavit you can check?
- Does the provider own the building, or hold written rights to sublet from the owner?
- Will the consent letter be issued in your company's name and accepted by the DBD?
- Does it support VAT registration, site inspections and a company sign?
- Are meeting rooms available when you need to meet officials or clients?
- What are the exit terms, and how long will mail be forwarded after the contract ends?
How we help
We review premises documents before company registration, prepare and file the registration or head office amendment, update the Revenue Department and Social Security Office, and advise whether your plans call for staying with a virtual office or moving to a real workspace before a work permit or BOI application. Where foreign documents are involved, such as a power of attorney from a parent company, we arrange translation and certification.
We tell you plainly which uses an address is risky for. Approval of any application remains the decision of the receiving authority.
Frequently asked questions
Is it legal to register a Thai company at a virtual office?
Yes, if the provider can issue a consent letter from the person entitled to the premises and the address has a house number on a house registration. The DBD looks at the premises documents.
Can a P.O. box be the company address?
No. The head office must be premises with a house number and a consent letter from the person entitled to them.
Will VAT registration at a virtual office always be approved?
No. The Revenue Department may inspect the place of business and decides on the facts of each case. Ask whether the provider supports inspections and signage.
Can we apply for a foreign employee's work permit at a virtual office?
It is high risk. The application states where the employee actually works and the workplace may be inspected. Companies hiring foreign staff should have a real workspace.
What do we need to do if we leave the virtual office?
Register a head office amendment with the DBD and update the Revenue Department, Social Security Office, bank and counterparties so the new address is used everywhere.
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Send us the address you are considering
Tell us the address or provider, your type of business, and whether you plan to hire staff or register for VAT. We will reply with what the documents you receive will and will not support.
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