How to Convert an MB to a UAB in Lithuania

As businesses grow in Lithuania, many entrepreneurs eventually reach a point where a small and flexible company structure is no longer enough for their long-term goals. One of the most common transitions is converting an MB, also known as a Small Partnership, into a UAB (private limited liability) company.

This change is especially common among businesses that begin as small service-based or online companies and later expand into larger operations, attract investors, hire employees, or enter international markets.

While the MB structure remains one of the most popular legal forms in Lithuania due to its flexibility and relatively simple administration, many companies eventually outgrow it. Converting an MB into a UAB can provide a more scalable structure, stronger credibility, and better opportunities for future expansion.

Understanding how the conversion process works, when it makes sense, and what changes after the transition is important for any business owner operating in Lithuania.

Why Businesses Often Start as an MB

The MB structure was designed specifically for smaller businesses. One of its biggest advantages is simplicity. Unlike a UAB, an MB does not require share capital, which makes it easier and cheaper to establish.

For many entrepreneurs, especially those launching digital businesses, the ability to start quickly with lower administrative requirements is a major advantage. A significant number of Lithuanian online businesses begin this way. Marketing agencies, e-commerce stores, software development projects, dropshipping companies, consultants, designers, and freelancers frequently choose MB because it allows them to begin operating without unnecessary complexity.

The structure also works particularly well for founders who initially operate alone or with a very small team. During the early stages of business, flexibility is often more important than corporate formalities, and this is exactly where the MB structure shines.

However, business needs tend to change over time.

Why Companies Eventually Convert to a UAB

As revenue grows and operations become more structured, entrepreneurs often begin looking for a more scalable corporate model. This is where the UAB structure becomes attractive.

A UAB is generally considered a more traditional and internationally recognized company structure. Investors, financial institutions, payment providers, and foreign partners are usually more familiar with the private limited company model because it resembles structures used across most European countries.

This becomes particularly important when businesses start expanding beyond Lithuania.

For example, many SaaS companies or international e-commerce brands initially operate successfully as an MB. But once they begin negotiating with investors, opening more advanced banking solutions, or working with larger international partners, the UAB structure often provides stronger credibility.

The transition is not necessarily about replacing a “bad” structure with a “better” one. Rather, it reflects the fact that different stages of business growth require different legal frameworks.

An MB is often excellent for starting lean and moving quickly. A UAB is often more suitable for structured scaling.

The Conversion Process in Lithuania

Lithuanian law allows companies to reorganize and convert from one legal form into another relatively smoothly. An MB can be reorganized into a UAB without shutting down the business completely, which is one of the reasons this process is so common.

During the conversion, the legal structure of the company changes, but the business itself usually continues operating. Existing contracts, clients, invoices, VAT registration, and business activities can often remain active throughout the transition.

The process generally begins with a formal decision by the MB members to reorganize the company into a UAB. After that, new incorporation documents for the UAB are prepared, including updated governance structure and shareholder information.

One of the biggest differences between the two legal forms is the existence of share capital. Unlike an MB, a UAB requires authorized share capital. Under Lithuanian law, the minimum share capital requirement for a UAB is EUR 1,000.

During the reorganization, MB members become shareholders in the newly converted UAB. Ownership percentages are typically transferred into shares according to the agreed structure.

The company’s registration information is then updated in the Lithuanian Register of Legal Entities.

Although the legal process itself is usually straightforward, businesses still need to ensure that accounting, taxes, contracts, and internal company documentation are properly adjusted during the transition.

Does the Company Need to Start From Zero?

One of the biggest advantages of conversion instead of closing and reopening a new company is continuity.

In many cases, the company itself continues existing after the reorganization, meaning the business does not lose its operational history. This can be extremely important for businesses that already have:

long-term clients, VAT registration history, supplier agreements, payment processing accounts, banking relationships, or established reputation.

For growing businesses, preserving operational continuity is often one of the most important reasons to convert rather than establish an entirely new entity.

This is particularly valuable for online businesses and SaaS companies that rely heavily on trust signals, financial history, and established infrastructure.

Taxation After Converting to a UAB

One common misconception is that converting from an MB to a UAB automatically leads to higher taxes. In practice, this is not necessarily true.

Both MBs and UABs in Lithuania may qualify for reduced corporate income tax rates if they meet the requirements for small businesses.

From 2026, Lithuania applies a standard corporate income tax rate of 17%, while qualifying smaller businesses may apply a reduced 7% rate if annual revenue does not exceed EUR 300,000 and other conditions are met.

This means that a smaller UAB may still benefit from reduced taxation in a similar way to an MB.

Because of this, the decision to convert is usually driven more by business growth strategy than by taxation alone.

When Is the Right Time to Convert?

There is no exact revenue number or specific stage at which every company should convert to a UAB. The right timing depends heavily on the nature of the business and its future plans.

However, there are several situations where entrepreneurs commonly begin considering the transition.

For example, many companies convert once they begin attracting investors or external shareholders. Others do so when entering international markets or seeking stronger corporate positioning.

In some cases, financial institutions or payment providers may also prefer working with a UAB structure for larger-scale operations.

For businesses planning long-term growth, the conversion often becomes part of a broader scaling strategy rather than simply an administrative change.

Lithuania Remains Flexible for Growing Businesses

One of Lithuania’s biggest strengths as a business jurisdiction is flexibility. Entrepreneurs can begin with a lean and efficient structure like an MB and later transition into a more scalable corporate model without relocating operations or rebuilding the company from scratch.

This flexibility is one of the reasons Lithuania remains attractive for technology companies, online businesses, SaaS projects, digital agencies, and international entrepreneurs.

The country combines relatively efficient company administration with EU market access, modern fintech infrastructure, and competitive corporate taxation.

For many entrepreneurs, the ability to start small and scale gradually is extremely valuable.

Final Thoughts

Converting an MB into a UAB in Lithuania is a natural step for many growing businesses. While the MB structure remains an excellent option for smaller operations and early-stage companies, a UAB often becomes more suitable as the business expands, attracts partners, or enters international markets.

The transition itself is generally manageable and allows businesses to continue operating while upgrading to a structure that is often better suited for long-term growth.

For entrepreneurs building scalable companies in Lithuania, the possibility to evolve from an MB into a UAB creates a practical and flexible pathway from startup phase to larger corporate operations.