For foreign founders, Korea is no longer just a market to enter after product-market fit abroad. Seoul is increasingly positioning itself as a place where international entrepreneurs can build the company, validate technology, secure immigration status, and connect with local support programs in one sequence. The latest example is Seoul’s expanded OASIS 2.0 support structure for foreign entrepreneurs.
OASIS stands for Overall Assistance for Startup Immigration System. It is a startup and immigration support pathway designated by Korean authorities for technology-based foreign entrepreneurship. In Seoul, it is operated through the Seoul Global Center and now includes a broader set of courses and services, from intellectual property education to mentoring, startup education, incubation, and corporation establishment support.
Below is a 2026 legal and operational guide to using OASIS 2.0 as part of a Korea company formation plan.
Table of Contents
Open Table of Contents
- What Changed Under Seoul OASIS 2.0
- Who Should Consider the OASIS Route
- How OASIS Connects to Korea Company Formation
- Main OASIS Programs Foreign Founders Should Understand
- Incorporation Steps After OASIS Preparation
- Visa, Tax, IP, and Banking Issues to Plan Early
- Practical Checklist for Foreign Entrepreneurs
- Common Mistakes to Avoid
- When to Get Legal Help
- Key Takeaway
What Changed Under Seoul OASIS 2.0
Seoul’s OASIS program has existed in different forms for years, but the 2026 expansion is important because it fills several gaps that foreign founders often face before incorporation. According to Seoul Metropolitan Government materials, the Seoul Global Center has supported hundreds of aspiring foreign entrepreneurs and helped foreign founders establish incorporated entities across areas such as tourism, platform services, employment, healthcare, translation, and startup ecosystem services.
The most practical change is that the program is no longer only about basic startup orientation. Seoul is expanding a more complete pipeline that includes intellectual property courses, startup management education, trade-focused education, mentoring, an invention and startup exhibition, incubation office support, and corporation establishment support.
For a foreign founder, this creates a staged pathway:
| Stage | Practical question | Why it matters |
|---|---|---|
| Idea and IP | Is the idea protectable or technology-based? | Startup visa and commercialization planning often depend on credible technology or IP. |
| Education and mentoring | Does the founder understand Korean business operations? | Tax, labor, real estate, and consumer issues can appear immediately after launch. |
| Incorporation | What legal entity should be formed? | Most founders choose a Korean corporation, but timing and capital structure matter. |
| Immigration | Which visa path fits the founder? | Startup visa planning should begin before the company is formed. |
| Operations | Can the company open a bank account and issue tax invoices? | A registered company still needs tax, banking, and compliance setup. |
Who Should Consider the OASIS Route
The OASIS route is most relevant for foreign entrepreneurs who want to launch a technology-based or innovation-oriented business in Korea, especially where the founder may need immigration support. It can be useful for solo founders, early-stage teams, student founders, and overseas entrepreneurs who want to test Korea as a base for Asian expansion.
Common examples include:
- SaaS or AI startups seeking Korean customers or partners
- healthcare, education, translation, travel, or platform businesses
- import/export and trade businesses needing Korea-specific operations training
- founders who need D-8-4 startup visa planning
- founders who want to build IP documentation before incorporation
- entrepreneurs who need incubation space or mentoring before leasing an office
However, OASIS is not a substitute for legal structuring. It does not automatically solve foreign investment reporting, shareholder documentation, employment compliance, tax registration, or bank onboarding. It is best viewed as a founder-support and visa-readiness track that should be combined with a proper incorporation plan.
How OASIS Connects to Korea Company Formation
A foreign founder can form a Korean company without OASIS. Likewise, a founder can attend OASIS programs before forming a company. The key is sequencing.
For many founders, the safer sequence is:
- clarify the business model and Korean regulatory risks;
- prepare founder identity documents and apostilled corporate documents if an overseas parent company will invest;
- use OASIS education, IP, mentoring, or incubation programs where relevant;
- decide whether the shareholder will be an individual founder or a foreign parent company;
- complete foreign investment notification if the investment qualifies as foreign direct investment;
- remit capital through the correct bank channel;
- incorporate the Korean company at the court registry;
- obtain business registration from the tax office;
- open the corporate bank account and activate operations;
- align visa, payroll, accounting, and tax filings.
The danger is forming the company first and discovering later that the business purpose, office arrangement, paid-in capital, or shareholder documents do not match the founder’s immigration or banking plan. That can create avoidable delays.
Main OASIS Programs Foreign Founders Should Understand
Seoul’s expanded OASIS structure includes several programs. Founders do not necessarily need every program, but they should understand which pieces support their company formation plan.
OASIS-1 and OASIS-2: Intellectual Property Education
These courses focus on intellectual property basics and more advanced IP topics. For technology founders, this can be useful because startup visa and support-program evaluations often look for a credible technology or innovation basis. Even when the founder does not yet have a patent, understanding patentability, design rights, copyright, and IP documentation can help prepare a stronger business plan.
OASIS-3: IP Application and Prototype Support
OASIS-3 can support patent or related IP application steps for promising ideas, subject to eligibility and budget. This is especially relevant where the founder wants to show technology substance before applying for a startup visa or investment program.
OASIS-4 and OASIS-4+: Startup and Trade Education
OASIS-4 covers startup operations, taxation, real estate practices, marketing, government support policies, and laws related to business management. OASIS-4+ is trade-focused and covers import/export procedures, online trade, trade taxation, documentation, payment settlement, and trade contracts.
These programs are especially useful for founders entering Korea for ecommerce, consumer products, distribution, import/export, or platform businesses. The legal issues are not limited to incorporation. Product labeling, customs, consumer protection, personal data, payment processing, and refund policies can all matter from day one.
OASIS-5: Coaching and Mentoring
Mentoring can reduce avoidable mistakes in Korea because local practice often differs from what founders expect. A foreign founder may also underestimate how long bank onboarding can take.
OASIS-6: Invention and Startup Exhibition
Seoul’s 2026 expansion includes an invention and startup exhibition for foreign entrepreneurs, with participant recruitment expected around July and August and pitching activity after that. This is important for founders who need visibility, feedback, or potential connections before formal fundraising.
Founders should prepare early: pitch deck, Korean one-page summary, founder profile, IP status, company formation plan, and visa roadmap should be consistent.
OASIS-7 and OASIS-8: Incubation and Corporation Establishment Support
OASIS-7 provides incubation office support for eligible participants. OASIS-8 supports corporation establishment procedures needed for startup visa and settlement in Korea.
These two programs are closest to the actual incorporation process. Still, founders should separately confirm corporate governance, shareholder structure, foreign investment reporting, articles of incorporation, representative director authority, and post-incorporation tax obligations.
Incorporation Steps After OASIS Preparation
Once the founder is ready to form the Korean company, the usual process includes the following.
1. Choose the shareholder and entity structure
A Korean corporation can be owned by a foreign individual or by a foreign company. Individual ownership can be simpler for early founders. Parent-company ownership may be better for established overseas businesses, brand control, consolidated accounting, or investment planning.
2. Confirm whether FDI reporting applies
Foreign direct investment treatment generally requires proper reporting and capital remittance procedures. If the founder wants the company recognized as a foreign-invested company, the capital flow and documents must be handled correctly. Do not casually transfer funds from a personal account without checking the reporting sequence.
3. Prepare incorporation documents
Typical documents include articles of incorporation, shareholder and director documents, appointment consents, corporate seal arrangements, and foreign identity or corporate documents. Overseas documents may need notarization, apostille, translation, or legalization depending on the country and document type.
4. Register the company and obtain business registration
Court registration creates the legal entity. Tax office business registration allows the company to receive its business registration number and conduct practical operations such as contracts, tax invoices, banking, payroll, and VAT filings.
5. Open and activate the corporate bank account
Banks will review the shareholder, representative director, business model, office address, source of funds, and expected transactions. Foreign-owned startups should prepare a clean explanation of customer flows, payment flows, and any cross-border transactions.
Visa, Tax, IP, and Banking Issues to Plan Early
OASIS can support startup immigration readiness, but visa approval depends on the founder’s facts. A founder should not assume that incorporation alone guarantees visa approval. The business plan, technology basis, points, education history, IP status, investment, and actual Korean operations may all matter.
Tax planning also starts earlier than many founders expect. The company may need VAT registration, bookkeeping, payroll withholding, four major social insurance enrollment for employees, year-end tax settlement, corporate income tax filings, and transfer-pricing support if it transacts with related foreign parties.
Banking is another bottleneck. Korean banks increasingly ask detailed questions about beneficial ownership, source of funds, expected transactions, and why the company needs a Korean account. If the founder’s visa, address, shareholder documents, and business registration do not align, onboarding can slow down.
IP ownership should also be documented before fundraising. If the founder created software, designs, or patentable ideas before incorporation, the company may need assignment documents. If a foreign parent owns the IP, the Korean company may need a license agreement and transfer-pricing review.
Practical Checklist for Foreign Entrepreneurs
Before forming a company in Korea through or alongside OASIS, prepare the following:
- founder passport and residence status information;
- business model summary in English and, ideally, Korean;
- planned shareholder structure;
- capital amount and source-of-funds explanation;
- Korean office or incubation address plan;
- IP ownership summary and patent/design/copyright status;
- visa target, such as D-8-4 startup visa or another applicable status;
- foreign investment reporting plan, if applicable;
- corporate name candidates in Korean and English;
- expected revenue model, customer type, and payment flows;
- tax, VAT, payroll, and bookkeeping setup plan;
- contracts needed before launch, such as founder agreements, service terms, privacy policy, employment contracts, and vendor agreements.
Common Mistakes to Avoid
The most common mistake is treating OASIS participation as the same thing as company formation. It is not. OASIS can strengthen the founder’s readiness, but incorporation still requires legal documents, registry filings, tax registration, and banking.
A second mistake is ignoring the shareholder decision. A founder may incorporate personally and later realize the overseas parent company should have owned the Korean subsidiary. Fixing this can require share transfers, tax review, and reporting updates.
A third mistake is waiting too long to plan immigration. If the founder needs a startup visa, the company structure, IP evidence, business plan, and OASIS records should be aligned before filing.
A fourth mistake is using a weak office address. Some business models can use flexible office solutions, but regulated industries, banks, tax offices, or visa authorities may require stronger evidence of actual business presence.
When to Get Legal Help
Foreign entrepreneurs should consider legal support when:
- the founder needs D-8-4 or D-8 visa planning;
- a foreign parent company will own the Korean entity;
- the business involves regulated products, data, payments, healthcare, finance, food, cosmetics, or imports;
- there are multiple founders or investors;
- IP was developed before incorporation;
- the company will hire employees soon after launch;
- the founder wants to apply for Korean government support programs or pitch events.
Key Takeaway
Seoul OASIS 2.0 is a useful signal for foreign entrepreneurs in 2026: Korea wants more international founders, but the path still requires careful structuring. The founders who benefit most will be those who connect the support program to a real legal and operational roadmap.
If you are planning to launch a startup or incorporate a foreign-owned company in Korea, SMA Lawfirm can help you structure the company, prepare foreign investment filings, review visa strategy, and coordinate post-incorporation compliance.
📩 Contact us at sma@saemunan.com