- Every company records a head office in its articles and on the registry; the tax office registers the business at a place of business supported by a lease.
- A registration address or non-resident office is usually enough to incorporate and obtain a business registration certificate.
- The D-8 investor visa expects independent premises where the business is actually run — a virtual office will not pass.
- A head office inside the Seoul overcrowding control region triples registration tax on incorporation.
- Trading companies, VAT refund claims and licensed activities attract inspections and building-use rules; choose the address for the business you will run.
In Seoul, as in every large city, an address is a product. Business centres sell everything from a line on a door and a mail service to a private lockable room with a reception desk. Korean has words for each — non-resident office (비상주 사무실, bisangju samusil) for an address without a desk, shared office (공유오피스) for a coworking membership, serviced office (서비스드 오피스) for a furnished private room — and the authorities treat them differently.
The question is never whether a virtual office is legal. It is whether it satisfies the particular institution that is looking at it: the court registry, the tax office, the bank, immigration, a licensing authority or the local tax office calculating your registration tax. This guide takes them one at a time.
Why the address matters in Korean law
The head office on the registry
Under Article 289 of the Commercial Act, the articles of incorporation must state the location of the head office (본점, bonjeom), and under Article 317 the registered head office appears on the corporate registry. The registry court with jurisdiction over that address keeps the company’s file. Moving it later is a change of registered matters that must be registered within two weeks under Article 183 as applied by Article 317(4) — at both the old and the new registry if the move crosses districts.
The place of business for tax
The tax system works with a different concept: the place of business (사업장, saeopjang). Under Article 6 of the VAT Act VAT is administered by place of business, and under Article 8 each place of business is registered within 20 days of starting business. The application is supported by documents set out in Article 11 of the Enforcement Decree of the VAT Act, which include a copy of the lease (임대차계약서) where the premises are rented. That is the provision behind the tax office’s first question: where is your lease?
The question is never whether a virtual office is legal. It is whether it satisfies the institution looking at it.
What each institution expects
| Institution | What it looks at | Virtual office? |
|---|---|---|
| Court registry | A head office address in the articles and the filing | Usually fine |
| Tax office | A lease for the place of business; may inspect | Usually fine for services; questions for trading and refunds |
| Bank | Registry extract, lease, business purpose | Usually fine with a credible business |
| Immigration (D-8) | Independent premises where the business is run | No |
| Licensing authorities | Premises meeting sector and building-use rules | Often no |
| Local tax office | Whether the head office is in the overcrowding region | Same rules for any address |
Court registry
The registry records what the articles say. It does not inspect premises. A virtual office address with a valid lease or use agreement is, in practice, accepted for incorporation.
Tax office
The tax office registers the place of business and, for most service businesses — consulting, software, design, marketing — accepts a business-centre lease without fuss. It looks harder at businesses with a fraud history in the VAT system: trading companies, especially those that will claim VAT refunds; businesses dealing in gold, scrap, mobile phones and similar goods; and companies whose activity does not seem to fit the address. It may visit the premises before issuing the certificate or later, and it can refuse, defer or cancel a registration where there is no real place of business.
Bank
The bank sees the lease as part of customer due diligence: does this company exist where it says it does? A business-centre address is common and accepted if the rest of the story — contracts, invoices, a website — holds together.
Immigration
For the D-8-1 investor visa, the Ministry of Justice’s guidance expects the foreign-invested company to have independent business premises (독립된 사업장). A non-resident address, a mail service or a hot desk in a coworking space does not meet that test; a serviced office with its own lockable room, leased in the company’s name, usually does. Officers may visit.
Licensing authorities
Many activities need a licence or registration that comes with premises requirements — food, cosmetics manufacturing, medical devices, travel agencies, recruitment, education, construction. Some also depend on the building use (건축물 용도) recorded for the premises under the Building Act: an office building may not be usable for a workshop or a shop. Check this before signing anything.
The Seoul tax question
The address also decides the registration tax. Under Article 28(2) of the Local Tax Act, registration licence tax on incorporating a company is charged at three times the normal rate when the head office is in the overcrowding control region (과밀억제권역) defined under Article 6 of the Seoul Metropolitan Area Readjustment Planning Act — which covers all of Seoul and several surrounding cities. The normal rate is 0.4% of capital with a minimum of KRW 112,500; inside the region it becomes 1.2% with a minimum of KRW 337,500, plus 20% local education tax in both cases.
For a company with KRW 1 million of capital the difference is about KRW 270,000. For a foreign-invested company with KRW 100 million it is nearly KRW 1 million, and it grows with the capital. The surcharge also applies, for five years after incorporation, to capital increases and to moving the head office into the region — so a company that starts outside and moves in soon after may pay the difference later.
How Korean commercial leases work
Anyone moving from a business centre to their own office meets the Korean commercial lease, which has its own logic. Rent is typically split into a substantial deposit (보증금, bojeunggeum), held by the landlord and returned at the end, and a monthly rent (월세, wolse), plus a separate maintenance fee (관리비, gwallibi) for the building. The deposit can be many months’ rent, which is why young companies prefer serviced offices with small deposits.
Tenants are protected by the Commercial Building Lease Protection Act. Under Article 3, a tenant who has taken possession and applied for business registration at the premises can assert the lease against a later buyer of the building; under Article 10, the tenant generally has a right to renew, subject to exceptions, for a total of up to ten years. The Act’s protections depend partly on the size of the deposit and the region, so check how they apply to your lease.
What a good business-centre contract says
A business centre usually rents its own premises and lets space to you, so your contract is a sub-lease or a service agreement. To work for registration and tax, it should do four things.
- Name the company as the tenant or user, not the director personally.
- State the exact address — building, floor and room number — that will go on the registry and the business registration certificate.
- Permit registration of the head office and place of business at that address, ideally with the building owner’s consent to sub-lease (전대동의서, jeondae dongeuiseo) attached, which some tax offices ask to see.
- Cover the period of at least a year, with clear notice terms, so the address does not disappear before the first renewal.
The options, side by side
| Registration address | Shared office | Serviced office | Own lease | |
|---|---|---|---|---|
| Korean term | 비상주 사무실 | 공유오피스 | 서비스드 오피스 | 임대 사무실 |
| What you get | Address, mail handling, lease or use agreement | A desk in a shared space | A private, furnished room | Your own premises |
| Registration and tax ID | Yes | Yes | Yes | Yes |
| D-8 visa | No | Usually no | Yes, if independent | Yes |
| Contract | 1 year | Monthly | Monthly or yearly | Usually 2 years |
| Typical cost | Lowest | Low | Medium | Market rent plus deposit |
Korean commercial leases traditionally involve a large deposit (보증금, bojeunggeum) plus monthly rent; serviced and shared offices replace the deposit with a smaller one and an all-inclusive fee, which is why foreign founders often start there.
Online sellers: the address on your website
A company selling online to Korean consumers registers as a mail-order business (통신판매업, tongsin panmaeeop) with its local district office under Article 12 of the Act on Consumer Protection in Electronic Commerce, and must display its business details — including its address — on the website under Article 10. The address therefore becomes public, and consumers use it for returns and complaints. A registration address works legally, but a returns address that cannot receive parcels creates a different kind of problem; many online sellers combine a business-centre head office with a fulfilment partner for returns.
Choosing a business centre
Seoul has hundreds of business centres, from global chains to single-floor operators. For a foreign-owned company the differences that matter are not the coffee.
- Experience with registrations. Ask how many tenant companies are registered at the address and whether the tax office has visited.
- Paperwork. A contract in the company’s name, the exact room number and the owner’s consent to sub-lease, available before you file.
- Mail. Same-day scanning and forwarding of official post, with notice of registered letters.
- Upgrade path. The option to move from an address to a private room in the same building, so the head office does not have to change when you need the D-8.
- Location. If the visa or customers matter, a business district; if only the tax bill matters and the business genuinely operates there, outside the overcrowding region.
Choose the address for the business you will run in a year, not the filing you need next week.
Which address for which business
Remote service business
A consultant, developer or agency selling to Korean clients from abroad, with no staff in Korea: a registration address is the efficient choice. It satisfies the registry, the tax office and usually the bank.
Founder moving on a D-8
A serviced office with a private room, leased in the company’s name before the visa application. It costs more than a registration address and less than a traditional lease, and it passes the independence test.
Trading or e-commerce company
Goods, customs and VAT refunds mean the tax office may visit. At minimum a serviced office; if stock is held in Korea, a warehouse or a fulfilment partner whose address can be explained.
Team on the ground
With several employees, a proper lease is cheaper per desk and removes every doubt — and the deposit is recovered at the end.
If the tax office visits
A premises check is short and practical. An officer — sometimes announced, sometimes not — comes to the address on the application and looks for signs that the business exists there: a nameplate with the company’s name, a desk or room it can use, documents or equipment, someone who can answer questions about the business. For a serviced office, the business centre’s reception confirming the tenancy usually suffices; for a non-resident address, the officer may ask where the business is actually run.
If the check is not satisfactory, the tax office can postpone the registration until it is, or, for an existing registration, cancel it ex officio where no business is carried on at the place of business. For a trading company waiting on a VAT refund, an unsatisfactory visit also delays the refund. The fix is the same in every case: a real place where the business can be seen.
More than one place of business
A company with a head office and a separate warehouse, shop or branch has more than one place of business (사업장). Each is registered with the tax office, and a branch of the company is also registered with the court. VAT is administered by place of business, though companies can apply to consolidate filing and payment at the head office or to be taxed as a single business unit. For foreign-owned companies the common case is a small head office plus a logistics partner’s warehouse; the warehouse arrangement should be explained in the registration so stock in an unexpected place does not prompt questions.
A worked example
A founder from Australia sets up a Seoul consulting company with KRW 20 million of capital and no staff in Korea. She takes a registration address in a Gangnam business centre with a one-year contract naming the company and the sub-lease consent attached. The registry accepts the address; registration tax is charged at the tripled Seoul rate on KRW 20 million. The tax office issues the business registration certificate without a visit. A year later she decides to move to Korea, forms a foreign investment of KRW 150 million and needs a D-8. She moves into a private serviced-office room in the same building, registers the change of head office within two weeks, updates the tax office and bank, and pays the additional registration tax on the capital increase at the Seoul rate. The new room, leased in the company’s name, is in her D-8 file.
Beyond Seoul
Seoul is the default, not the only choice. Busan suits shipping, logistics and trade with Japan; Daejeon, research and deep-tech; Pangyo, just south of Seoul in Gyeonggi Province, is Korea’s software and gaming cluster. Korea’s free economic zones (경제자유구역) — in Incheon, Busan-Jinhae and elsewhere — and its free trade zones offer incentives and infrastructure for qualifying foreign investment, though mainly for manufacturing, logistics and larger projects rather than one-person companies.
Two cautions apply. Parts of Gyeonggi Province and Incheon fall inside the overcrowding control region, so ‘outside Seoul’ is not automatically ‘outside the surcharge’ — check the specific city or district. And the address must still be where the business genuinely operates: a founder who lives and works in Seoul and registers in Busan to save tax has created a mismatch that the tax office, the bank and immigration are all trained to notice.
Moving later
Upgrading from a registration address to a real office is common and straightforward: sign the new lease, register the change of head office with the court within two weeks, and update the tax office, the bank and — for a foreign-invested company — the foreign investment registration. Two things deserve planning: the overcrowding-region surcharge if you move into Seoul within five years of incorporation, and the visa, if the new premises are what makes the D-8 possible.
Mistakes we see
- Applying for the D-8 on a registration address. The most common reason for a premises-based refusal.
- A lease in the director’s personal name. The tax office and immigration want a lease in the company’s name.
- Activity codes that do not fit the address — wholesale trade registered at a mail address invites a visit.
- Ignoring building use for food, manufacturing or retail premises.
- Registering outside Seoul on paper for a business run from Seoul.
- Forgetting to register the move within two weeks.
Korean terms you will meet
Questions readers ask
Can I register a Korean company at a virtual office?
In most cases yes — for incorporation and the business registration certificate, supported by a lease or use agreement.
Is a virtual office enough for the D-8 visa?
No. Immigration expects independent business premises where the business is actually conducted.
How much is a business address in Seoul?
Our registration address costs USD 2,000 a year.
Does the address affect tax?
Yes. Under Article 28(2) of the Local Tax Act, a head office in the Seoul overcrowding control region triples the registration tax on incorporation.
Will the tax office inspect my office?
It may, particularly for trading companies, VAT refund claims and activities that do not fit the address.
Can I move from a virtual office later?
Yes. Register the change of head office within two weeks and update the tax office, bank and FDI registration.
Alexander Baranov
Founder of the BCA Group · cross-border corporate and tax adviser since 2008
Alexander advises foreign founders and groups on company formation, tax structuring and corporate law in more than 40 jurisdictions across Europe, the Gulf, Asia and Latin America. He is the author of nine books on international business and tax and writes regularly for professional finance and tax journals. He works in English, German, Spanish and Russian.
This guide is based on the Korean statutes cited in the text and on our own filings. It is reviewed when the law or official rates change.