US Company Formation from Mongolia (2026): US LLC or C-Corp for Mongolian Exporters, Tech Teams and Mining Services Firms

Mongolia sells a handful of things to the USA, and sells them well: cashmere and wool goods from Ulaanbaatar's mills and design studios, specialist services from a mining sector used to working with international partners, and, more recently, software and creative work from a young tech community. Add students and professionals who have studied in the USA and come home, and a US company becomes a practical tool for many Mongolian businesses. It can be a seller of record on US marketplaces, a contracting party for American clients, or a vehicle for investors.

A US company can be formed from Mongolia without travelling. This guide explains what Mongolian owners need to know: there is no US–Mongolia income tax treaty, Mongolia taxes its residents on worldwide income, and a broad Mongolian tax reform is scheduled for 2027. It then compares US LLC formation and US C-Corp formation, with examples for an exporter and a service business.

In short: Mongolian citizens and residents can own 100% of a US LLC or C-Corporation, formed remotely. There is no US–Mongolia tax treaty, so dividends, royalties and related-party interest from a US corporation to Mongolia carry 30% US withholding. A single-member LLC with no US operations usually pays no US income tax and no withholding on distributions. Mongolia taxes residents on worldwide income. Property income, including dividends, is taxed at 10% for residents, and companies pay corporate income tax at tiered rates. Reforms to corporate and personal income tax were submitted in December 2025 for 1 January 2027. With UCB, a Wyoming LLC with EIN is $249 and a Delaware corporation with EIN is $358, all-in.

Who can form a US company from Mongolia

US states impose no nationality or residence requirement. A Mongolian citizen, a foreign resident of Mongolia, or a Mongolian company (an ХХК, limited liability company) can own a US company outright, and an individual owner can be its sole manager or director. No US visa, SSN or US address is required, and no trip. The company needs a registered agent in its state, which is included for the first year in every UCB formation (see registered agent explained), and an EIN from the IRS, which needs no SSN or ITIN (see EIN for non-residents).

For identity, use your passport. The Mongolian ID card is not accepted by US banks. Mongolian names follow a patronymic pattern (father's name followed by given name), and US forms ask for "first" and "last" name. Copy the order and Latin spelling exactly as your passport shows them, and use them the same way on every document. For proof of address, use a utility bill or bank statement with an English translation.

No treaty: what it means

The USA has no income tax treaty with Mongolia. US domestic withholding rates therefore apply to payments from a US company to Mongolia:

• Dividends from a US corporation: 30%.
• Royalties, for example for a brand or design licensed by a Mongolian company to its US subsidiary: 30%.
• Interest on a loan from a shareholder owning 10% or more: 30%. Interest to unrelated lenders can qualify for the portfolio interest exemption.

Corporate profits paid out to Mongolia therefore bear about 44.7% US federal tax: 21% corporate tax, then 30% of the rest. For most individual Mongolian owners, that makes a disregarded LLC more attractive than a corporation, unless the business needs a corporation for other reasons.

How Mongolia taxes a US company and its owner

Mongolia taxes resident individuals and companies on their worldwide income, with a credit for foreign tax paid, up to the Mongolian tax on the same income.

• Individuals. Salary income is taxed at progressive rates. Income from property, including dividends, interest and royalties, is taxed at 10% for residents. Business income of individuals has its own rules and simplified regimes for small businesses.
• Companies. Corporate income tax is tiered, with a lower rate on income up to a set threshold and 25% above it. A reduced turnover-based regime applies to small companies.
• Reform. The government submitted a package of amendments to corporate and personal income tax to Parliament on 30 December 2025, scheduled to take effect on 1 January 2027. Reported proposals include a lower headline corporate rate and changes to dividend taxation. Plan 2026 on the current law, and check the final 2027 rules once enacted.

Mongolia does not have the detailed CFC regimes of countries such as Japan or Korea. A resident's US company is still part of their worldwide income picture: what you receive from it is taxable, and work you do in Mongolia is Mongolian income whoever invoices it. A Mongolian tax adviser should confirm how a US LLC, which is a separate legal person under US law but ignored by the IRS, is treated in your filings.

US LLC formation from Mongolia

The US side

A single-member LLC owned by a non-resident is disregarded for US federal income tax. With no US office, US employees or US agents who conclude contracts, its income is generally not effectively connected with a US trade or business, so no federal income tax is due (see effectively connected income explained). Distributions are not US dividends, so the missing treaty does not matter for them. The LLC files Form 5472 with a pro forma Form 1120 every year, and missing it carries a $25,000 penalty (see Form 5472 explained).

A tugrik example: a design studio

These are illustrative figures, not a client case, at MNT 3,450 to the dollar.

Enkhjin runs a small motion-design studio in Ulaanbaatar. Her clients are US game studios and advertising agencies. She forms a Wyoming LLC so they can contract with a US company and pay by ACH, and it bills US$85,000 a year. After paying two freelancers, the LLC's profit is US$65,000, about MNT 224 million.

In the USA, the LLC files Form 5472 and a pro forma 1120 and pays no federal income tax: all the work is done in Mongolia, with no US office or staff.

In Mongolia, her adviser reports the income in her Mongolian return as income from her own services, performed in Mongolia. The LLC's statements, invoices and US filings support it.

US C-Corp formation from Mongolia

The US side

A C-Corporation pays 21% federal tax on its profits, plus state tax where it does business, and files Form 1120 and Form 5472 every year (see the 21% corporate tax explained and the C-Corp guide for non-residents). With no treaty, its dividends to Mongolia are withheld at 30%.

When to choose it

• Selling physical goods from US stock. Take an illustrative case: a Mongolian cashmere label that sells sweaters, scarves and blankets through its own Shopify store, Amazon and boutiques, from a fulfilment warehouse in New Jersey. Holding inventory in the USA and selling to US customers is very likely a US trade or business. A corporation keeps that US tax inside the US company, rather than making the Mongolian company or owner a US taxpayer directly. The US company is the importer of record and pays US customs duty and any tariffs that apply to Mongolian goods. It buys from the Mongolian manufacturer at arm's-length prices and keeps a distribution margin taxed in the USA. Profits are usually reinvested in marketing and stock rather than paid to Mongolia at 30% withholding.
• Mining services and engineering firms with US contracts or partners, where the US partner wants a Delaware corporation.
• Start-ups raising investment, for which US investors require a Delaware C-Corporation (see raising US investment as a foreign founder).

For e-commerce sellers more generally, see LLC for e-commerce sellers and state taxes for a foreign-owned LLC. The second explains US sales tax, which is separate from income tax and collected state by state.

Which state

• Wyoming or New Mexico for a service business run from Mongolia, with no US premises.
• Delaware for a corporation raising investment or partnering with US firms.
• The state of your US warehouse or office, for a product business. New Jersey, California and Texas are common for fulfilment.

See best state for non-residents and the state selector.

What it costs

State fees and the first-year registered agent are included. See what a US LLC costs every year.

Banking and payments

Mongolia left the FATF grey list in 2020. US banks and fintechs generally accept Mongolian owners after standard due diligence, with somewhat fewer providers than for larger economies. What gets applications through:

• A specific business description.
• An English website showing real products or work.
• Name order and spelling that match the passport on every document.
• A US business address with your own suite number.
• For a company owner, the Mongolian company's state registration certificate and shareholder details.

Transfers from the US account to Mongolian banks such as Khan Bank, Golomt or TDB are ordinary international wires. Keep the company's invoices and statements for the bank's questions about incoming funds. See US business bank accounts for non-residents, why banks reject non-resident applications and Stripe for non-residents.

Common mistakes

• Paying regular dividends from a US corporation to Mongolia, at 30% withholding with no treaty.
• Selling from US stock through a disregarded LLC, which makes its Mongolian owner the US taxpayer on the US business.
• Mismatched name order between passport, EIN letter and bank forms.
• Assuming US income is outside Mongolian tax. Residents are taxed on worldwide income.
• Skipping Form 5472 because the LLC owed no US tax.

Frequently asked questions

Can a Mongolian citizen own 100% of a US company? Yes, without visiting the USA or holding a US visa.

Is there a US–Mongolia tax treaty? No. US dividends, royalties and related-party interest paid to Mongolia are withheld at 30%.

Will my US LLC pay US tax? Usually not, with no US office, staff or agents. It files Form 5472 and a pro forma 1120 every year. Selling from US inventory changes this.

How does Mongolia tax what I receive from the US company? Residents are taxed on worldwide income. Dividends are property income at 10% under the current law, with a credit for US tax, and income for your own work in Mongolia is taxed as such. A reform is scheduled for 2027.

Should my cashmere brand use an LLC or a corporation? If it holds stock in the USA and sells to US customers, usually a corporation, so the US tax stays in the US company.

Do I need an ITIN? Not to form the company or obtain its EIN. See what is an ITIN and who needs one.

How UCB can help

We handle US company formation from Mongolia remotely: the state filing, EIN, registered agent, US business address and bank application. Each year we file the federal return through our US tax filing service. Your Mongolian adviser handles Mongolian tax, and we supply the US records they need. See our formation, EIN and bank account package and the country guide.

Setting up a US company from Mongolia? WhatsApp us at +1 315 961 2956 or email enquiries@ucbsolutions.com.