Published on and written by Cyril Jarnias
Setting up in Mongolia to work or invest in real estate means entering a fairly structured tax system, where resident or non‑resident status changes everything. Between progressive income tax, withholding at source, real estate sales tax, and an actual annual property tax on built assets, an expatriate can quickly get lost. However, the rules are relatively clear once you examine them point by point.
This article details the two pillars of taxation for expatriates in Mongolia: income tax and real estate taxation (property tax, taxation of rents and sales). The information is based on official texts and specialized summaries, presented in a clear and practical manner.
Becoming a Mongolian tax resident: the 183-day rule and beyond
In Mongolia, the cornerstone of the system is tax resident status. It does not depend on nationality, but on the length of stay and the source of income.
A person is considered a Mongolian tax resident if they meet at least one of these criteria: a stay of 183 days or more (not necessarily consecutive) over any 12‑month consecutive period, including prospecting trips and business travel; more than 50% of their taxable income coming from Mongolian sources; or being a Mongolian civil servant posted abroad.
There is also a concept of “anticipated” residence: a foreigner arriving with a work visa and a clearly established intention to live and work 183 days or more can request to be registered as a tax resident upon arrival. This is often the case for expatriates sent on long‑term assignments.
During the first year of arrival in Mongolia, tax law provides for a split residence period. The expatriate is considered a non‑resident taxpayer for the first 183 days. From the 184th day (or an earlier registration date), they acquire tax resident status for the rest of the year. Upon departure, any subsequent stay in Mongolia during the same calendar year must be included when calculating the total days of presence to check whether the 183‑day threshold is exceeded.
Finally, a non‑resident, in the Mongolian sense, is any person who does not meet any of the above criteria but nevertheless receives taxable Mongolian‑source income. This is typically the case of a foreign consultant coming for a few months or a non‑resident owner receiving rents from an apartment in Ulaanbaatar.
Scope of taxation: worldwide income for residents, Mongolian income for non‑residents
Once the status is determined, the extent of taxation becomes relatively simple.
A Mongolian tax resident is taxable on all of their worldwide income. This includes salaries paid by a foreign employer, dividends from companies outside Mongolia, rents from properties held abroad, etc. An expatriate who becomes a resident must therefore anticipate possible double taxation, offset, where applicable, by tax credits for taxes paid abroad.
A non‑resident is only taxed on their Mongolian‑source income. This concept notably includes: remuneration for work performed in the country (services, management), income from the sale of assets located in Mongolia, rents from locally built buildings, dividends and interest paid by Mongolian companies or banks, royalties and insurance premiums related to risks covered in Mongolia, as well as profits from shows or sporting or artistic events organized in the territory.
When two non‑residents carry out a transaction between themselves involving a Mongolian asset without a local intermediary (for example, the overseas transfer of shares in a company owning a building in Mongolia), the obligation to calculate and pay the Mongolian tax may fall on the non‑resident seller themselves.
Foreign agents posted in embassies, consulates, or UN agencies in Mongolia, as well as their families, are expressly considered non‑residents. Their salaries and benefits related to these functions are exempt from tax.
Income tax for resident expatriates: progressive rate and income categorization
Since the 2023 tax year, Mongolia has abandoned the flat rate of 10% on residents’ salaries for a progressive rate schedule. This change applies to employment income, including fringe benefits.
The current schedule for annual employment income for a resident is as follows:
| Annual Employment Income Bracket (MNT) | Tax Due | Marginal Rate |
|---|---|---|
| 0 to 120,000,000 | 10% | 10% |
| 120,000,001 to 180,000,000 | 12,000,000 + 15% on amount over 120M | 15% |
| Over 180,000,000 | 21,000,000 + 20% on amount over 180M | 20% |
The following are considered taxable employment income: base salary; overtime and bonuses; assignment, expatriation or hardship premiums; paid leave; employer contributions to a pension plan (including foreign) for the benefit of the employee; housing allowances, children’s school fees, plane tickets for home leave, family support, company car with driver, and, more generally, the majority of cash or in‑kind benefits. Remuneration paid to members of boards of directors, committees, or working groups also falls into the taxable base.
Default tax rate on self‑employment income for residents in France.
Investment income (dividends, interest, royalties, rental income, capital gains on securities) is, for a resident, generally subject to a flat rate of 10%. A notable exception concerns certain interest and dividends from securities (bonds, shares, debt instruments) issued by a resident taxpayer and traded on organized markets: this type of income may benefit from a reduced rate of 5%.
Capital gains are taxed differently depending on the nature of the asset sold. For non‑real estate gains (such as the sale of shares or equity stakes), residents are subject to a 10% tax rate. Regarding real estate sales, there is no classic capital gains tax, but a proportional tax of 2% is applied to the gross proceeds of the sale, with no allowance or exemption, even for the primary residence.
Income tax for non‑residents: flat rate of 20% and withholding at source
For non‑residents, Mongolia has chosen simplicity: a flat rate of 20% on all Mongolian‑source income, regardless of its type (employment, rents, dividends, interest, services, gain from the sale of Mongolian real estate or securities).
In Mongolia, a 20% tax rate in the form of withholding at source applies to non‑residents’ income. For example, when an employer pays a salary to a non‑resident expatriate, they must withhold 20% and remit it to the tax authorities. Likewise, the payment of fees to a foreign consultant by a Mongolian company is subject to the same deduction. For dividends and interest, the standard withholding is also 20%, although this rate may be reduced by an international tax treaty.
The table below summarizes the main rates according to expatriate status:
| Type of Mongolian‑Source Income | Tax Resident | Non‑Resident |
|---|---|---|
| Salary / employment benefits | 10–20% (progressive schedule) | 20% (flat rate) |
| Business / operating income | 10% (or optional 1%) | 20% |
| Dividends and interest (general regime) | 10% | 20% (reducible by DTT) |
| Interest / dividends on certain listed securities | 5% | 5% or 20% depending on case |
| Rents (real estate in Mongolia) | 10% on net | 20% on gross (WHT) |
| Sale of real estate (tax on proceeds) | 2% of sale price | 20% of sale price (according to some sources) or 2% withheld at source according to texts; practice often imposes a specific 2% withholding for all, but the non‑resident remains under the general 20% regime on Mongolian‑source income |
| Artistic, sports income | 5% | 20% (unless special provision) |
| Games, betting, lotteries | 40% | 40% |
The detailed texts sometimes distinguish, for non‑residents, between the personal income tax regime and the corporate income tax regime (when foreign providers are legal entities). In both cases, the logic remains the same: withholding at source at 20%, with possible application of a reduced treaty rate.
Deductions and tax credits: a limited scope for expatriates
Mongolia is sparing with personal deductions. For resident employees, the only significant deduction is for social security contributions paid by the employee, capped at 7,590,000 MNT per year. These contributions, borne by the employee, amount to 11.5% of salary, up to a limit of 632,500 MNT per month.
Non‑residents do not benefit from this deductibility of social contributions, which mechanically increases their effective tax rate on salaries.
Residents receiving employment income from Mongolian sources benefit from a fixed standard tax credit, which directly reduces the amount of tax due. This credit decreases as annual income increases and disappears entirely when that income exceeds 36 million MNT.
The indicative scale, as it appears in the texts, can be summarized as follows: The indicative scale.
| Annual Employment Income (MNT) | Maximum Tax Credit Amount (MNT) |
|---|---|
| 0 to 6,000,000 | 240,000 |
| 6,000,001 to 12,000,000 | 216,000 |
| 12,000,001 to 18,000,000 | 192,000 |
| 18,000,001 to 24,000,000 | 168,000 |
| 24,000,001 to 30,000,000 | 144,000 |
| 30,000,001 to 36,000,000 | 120,000 |
| 36,000,001 and above | 0 |
Alongside this standard credit, various measures target mainly Mongolian citizens: credit for tuition fees (first university degree or equivalent), credit related to the first purchase of a residence financed by a mortgage loan or by already taxed income, partial credit for people living in remote regions, or credits favoring certain agricultural production. In practice, the vast majority of these provisions do not directly concern expatriates, either because they are reserved for citizens, or because they presuppose a fairly specific situation (for example, agricultural operations in the provinces).
There is currently no general derogatory regime for expatriates in France. This means: no exemption on part of foreign salary, no rate reduction for posted workers, and no generalized housing allowance. Although incentives for ‘digital nomads’ or passing foreigners are sometimes mentioned, the law currently provides no specific and systematic concession.
Exempt income: diplomats, disabled persons, government bonds
A few types of income are completely exempt from Mongolian income tax. Among them: pensions, indemnities, benefits, compensation, and remissions provided for by law; income of disabled persons; assistance provided by international organizations or foreign governments in the event of natural disasters; prizes awarded by the State, certain scientific awards; remuneration of foreigners employed in diplomatic missions, consulates, or UN offices in Mongolia, as well as income of their families from abroad; interest and penalties related to government bonds.
For an expatriate employee in the private sector, tax exemptions in Mongolia generally do not apply. An exception exists in the case of official secondment to an international organization recognized by Mongolian law.
Social contributions: mandatory participation for foreign employees
Beyond income tax, expatriates working in Mongolia are subject to the local social security system. Participation is mandatory for all employees working in Mongolia, regardless of nationality.
Percentage of gross salary paid by the employee to social security, capped at 632,500 MNT per month.
For an expatriate who is a national of a country that has not signed a totalization agreement with Mongolia, these contributions are added to any contributions possibly due in their home country. This is notably the case for US citizens: in the absence of a bilateral agreement, US independent contractors operating in Mongolia may be subject to double social security contributions (US system and Mongolian system).
Returns and payments: calendar and responsibilities
Mongolia operates on a self‑assessment system. The taxpayer ultimately remains responsible for the accuracy of their returns, even if the employer handles the withholding at source on salaries.
The tax year corresponds to the calendar year. For individual taxpayers, the annual income tax return must be filed no later than February 15 of the year following the income year. The same date applies for payment of any balance due. There is no official extension mechanism for individuals.
For an expatriate paid solely by a Mongolian employer with withholding at source, filing an annual return is not systematically mandatory. However, since 2022, the tax authorities strongly encourage all taxpayers, even in this situation, to file one. For non‑residents, the legal obligation remains imprecise, but in practice, the withholding at source carried out by the Mongolian employer is often considered to settle the tax due.
On the other hand, as soon as a resident expatriate receives other income not subject to withholding at source—for example, rents on an apartment, capital gains on the sale of securities, or foreign‑source income—they must file a return and pay the corresponding tax themselves.
Employers in Mongolia must file a quarterly withholding return no later than the 20th of the first month following the quarter, and an annual return before February 15. They are also required to remit the withheld tax monthly, no later than the 10th of the month following salary payment.
Mongolian payers who pay income to non‑residents (fees, dividends, rents, etc.) must also withhold the tax and remit it within 10 working days of the payment. Quarterly and annual withholding returns must be filed.
Penalties and non‑compliance risks
The Mongolian penalty regime is deterrent. In case of late payment, a late payment interest of 0.1% per day applies on the unpaid tax amount. Government resolutions also mention a second level of daily penalty, calculated as a percentage of the average bank lending rate, which can increase the bill.
The maximum proportional fine rate applicable in case of repeat offense after a tax audit for under‑reporting.
Non‑compliance with filing obligations (return not filed or late) can result in a fine between three and five times the monthly minimum wage, currently set at 192,000 MNT. Finally, when a foreigner’s tax debt exceeds 20 million MNT and they do not have sufficient assets to settle it, the administration may request a ban on leaving the territory until the debt, including penalties, is fully paid.
Property tax in Mongolia: an annual tax on buildings
Mongolian tax taxonomy distinguishes two types of taxation related to real estate: on the one hand, an annual property tax on real estate (a true property tax), and on the other hand, an income or profit tax related to transactions (sale, rental). An expatriate owning a property in Mongolia may therefore be subject to both.
The Mongolian property tax is governed by the Law on Property Tax on Real Estate, in effect since the early 2000s. It applies to all owners of built buildings or registered constructions in Mongolia: individuals, companies, NGOs, Mongolian citizens as well as non‑citizens. This refers to any real estate registered in the land registry.
The tax base is determined by the value of the property recorded in the national real estate register. If the property is not registered there, its insured value is generally used. As a last resort, for companies, the book value is used.
The property tax rate is set locally, generally in a range between 0.6% and 1% (some texts extend up to 2%), depending on several factors: location, intended use (residential, commercial, industrial), surface area, market pressure (supply and demand). The assemblies of provinces and the capital city determine each year the rates applicable in their territory.
Companies and other legal entities pay the property tax in quarterly installments, before the 15th of the last month of each quarter. Individuals, including expatriate owners, must in principle pay the tax once a year before February 15.
Certain properties are exempt from this tax. This includes: property belonging to public entities funded by the state or local authorities; a large part of the residential park, notably housing for public use or certain apartments (according to local rules and number of properties); buildings and equipment in industrial or technological zones benefiting from incentives; as well as constructions located in free zones and, under conditions, in special zones of the capital.
For expatriates, the key question is to check whether their apartment or house falls into an exempt category. In practice, a home held as a rental investment is more often taxable than exempt, especially if it is a high‑end property in a sought‑after neighborhood of Ulaanbaatar.
Rental income: tax regime for rents for expatriates
Rental income from real estate located in Mongolia is classified as property income. It is taxable in the country, whether the owner is a resident or non‑resident.
For a tax resident, taxable income is gross rent minus documented rental expenses: charges, management fees, possible repairs, etc. The net result is then taxed at 10%. VAT generally does not apply to residential rental housing, which is exempt, but VAT considerations may arise for commercial rentals through a company.
For a non‑resident owner, a 20% withholding at source is applied to the gross rent (without deduction of expenses). This withholding, carried out by the tenant or a resident paying agent, in principle settles the Mongolian tax due on this income. The application of an international tax treaty may, in some cases, modify this tax regime.
The table below illustrates the difference in treatment:
| Status of Expatriate Owner | Taxable Base | Applicable Rate | Payment Method |
|---|---|---|---|
| Tax resident | Gross rent – justified expenses | 10% | Annual self‑assessment |
| Non‑resident | Gross rent | 20% | Withholding at source by payer |
In a context where the rental market in Ulaanbaatar attracts foreign investors, this differential treatment highlights the interest, for an expatriate considering a significant real estate investment and a prolonged presence, in considering their tax residence status and the legal structure of ownership (direct ownership in own name, via a Mongolian company, etc.).
Sale of real estate: proportional taxation without primary residence exemption
Mongolia does not have an exemption for the primary residence like some European countries. Any sale of a building—personal residence, rental apartment, commercial premises—is subject to proportional taxation on the total sale amount, not on the net gain.
For residents (individuals), a tax of 2% is calculated on the gross sale price. Companies are also subject to this levy, in addition to corporate income tax on their profits. For non‑residents, a rate of 2% also applies to the gross proceeds as income tax, and the general principle is taxation of 20% on Mongolian‑source income. In practice, a specific 2% withholding is made when the transaction is registered. The administration may apply other mechanisms in the event of structuring through a vehicle or profit reclassification.
The central point for an expatriate seller is that there is no allowance for holding period nor consideration of the purchase price. The rate applies to the sale amount, which can represent a significant tax burden when the margin is slim or when the property was acquired at a high price.
The total cost of real estate transactions in Mongolia can reach up to 5.6% of the property price, including taxes, commissions, and legal fees.
VAT and real estate: limited impact for individual expatriates
Mongolia applies a VAT of 10% on most goods and services. However, residential rental housing is generally exempt from VAT, which limits the impact of this indirect tax on individual investors. Real estate acquisitions themselves are not, in practice, subject to VAT for individuals, although specific mechanisms may apply to commercial operations carried out by developers or taxable companies.
Individuals with a Mongolian bank account can benefit from a refund equivalent to 2% of the value of their purchases (i.e., 20% of the VAT paid, the standard rate being 10%) when the merchant issues a compliant fiscal receipt. This measure aims to encourage the use of official invoices, but its impact on personal real estate taxation remains marginal.
Treatment of foreign income and international tax credits
For an expatriate who becomes a Mongolian tax resident and continues to receive income from abroad (salary, dividends, rents, etc.), this income is in principle taxable in Mongolia. However, if the same income has already been taxed in another country, the risk of double taxation is mitigated in two ways.
In the presence of a double tax treaty (DTT or DTA) between Mongolia and the source country of the income, the treaty determines which state has the right to tax a given income and, where applicable, provides mechanisms for tax credits.
Since 2020, Mongolia applies a foreign tax credit calculated on a source‑by‑source basis, subject to a tax information exchange agreement with the other state. The foreign tax paid is creditable against the Mongolian tax due on the same income, up to the amount of the latter. If the foreign tax is lower, the difference is due locally; if it is higher, the excess is not refundable.
Important point: this bilateral credit mechanism is reserved for Mongolian tax residents. Non‑residents, taxed in Mongolia only on their Mongolian‑source income, cannot benefit from it.
Mongolia has about twenty tax treaties, notably with France, Belgium, Canada, and other countries, which generally reduce withholding tax rates on dividends, interest, and royalties (between 5% and 15%). However, there is no treaty with the United States. American expatriates must therefore prevent double taxation by using US tax law mechanisms (Foreign Tax Credit, foreign earned income exclusion) and Mongolian tax credits if they are residents.
Interactions with home country tax obligations: the case of Americans
For US citizens and green card holders, the situation is particularly sensitive. As a matter of principle, the United States taxes its citizens on their worldwide income, regardless of their place of residence. An American working in Mongolia must therefore fulfill not only their obligations to the Mongolian tax administration, but also those to the IRS.
The thresholds for filing a federal return are low and vary according to status and age. To limit US tax on foreign income, mechanisms such as the Foreign Earned Income Exclusion and the Foreign Tax Credit exist. In the absence of a tax treaty, it is up to the taxpayer to use them correctly to avoid double taxation.
Added to this are foreign bank account reporting obligations (FBAR from $10,000 cumulative over the year, FATCA/Form 8938 from higher thresholds) and heavy penalties for non‑compliance. For an American expatriate in Mongolia, coordination between local tax advisor and US advisor is therefore essential.
In practice: tax itinerary of a typical expatriate in Mongolia
An expatriate arriving in Mongolia for a long‑term assignment will generally follow this path: within 48 hours, if staying more than 30 days, electronic registration with immigration authorities; within the month following the start of receiving taxable income, registration with the tax administration to obtain a tax number, the unique 13‑digit identifier issued by immigration also serving for tax purposes; start of withholding at source by the Mongolian employer on salaries and payment of mandatory social security contributions; possibly, at year‑end, filing a personal return before February 15, particularly in case of income other than salary or foreign income.
The buyer of a property must register it with the cadastre, check the local property tax rate, and pay it annually on time. In case of rental, a resident owner must keep simplified accounts of rents and expenses. A non‑resident owner must ensure that the tenant or their agent carries out a 20% withholding on rents.
When selling the property, they will need to take into account the 2% withholding on the sale price, which will occur at the time of registration of the transfer of ownership, and verify whether, in their case, other tax obligations may arise from the structuring of the transaction.
In case of definitive departure, no specific tax procedure is required beyond the annual return. However, the taxpayer must absolutely settle all their taxes, fines, and interest due. A tax debt exceeding 20 million MNT may result in a ban on leaving the territory.
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Mongolian taxation applied to expatriates is neither the heaviest nor the most complex in the world, but it has particularities to understand well, notably the absence of preferential treatment for foreigners, the central role of residence status, and the combination of worldwide income tax (for residents) with a real annual property tax and proportional taxation on real estate sales. For a posted employee as well as for a real estate investor, the key remains to anticipate these elements from the preparation of the expatriation project, and to rely on a precise reading of local rules to avoid both unpleasant surprises and the risks of double taxation.
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Cyril Jarnias is an independent expert in international wealth management with over 20 years of experience. As an expatriate himself, he is dedicated to helping individuals and business leaders build, protect, and pass on their wealth with complete peace of mind.
On his website, cyriljarnias.com, he shares his expertise on international real estate, offshore company formation, and expatriation.
Thanks to his expertise, he offers sound advice to optimize his clients' wealth management. Cyril Jarnias is also recognized for his appearances in many prestigious media outlets such as BFM Business, les Français de l’étranger, Le Figaro, Les Echos, and Mieux vivre votre argent, where he shares his knowledge and know-how in wealth management.
