Tourism & Business Travel: You do not need a visa if visiting for fewer than 90 days, but your passport must be valid for at least six months beyond your date of arrival. For stays for more than 30 days, register with Mongolian Immigration within seven days of arrival. Failure to register will result in a fine of $100-$300 – even if you extend your stay due to circumstances beyond your control.
Work, Study, Reside: If you plan to visit, work, study, or reside in Mongolia for more than 90 days, apply for a visa at the Mongolian Embassy in Washington, DC, the Mongolian Consulate General in San Francisco, or the Mongolian Mission to the United Nations in New York.
Overland Travel to/from China or Russia: If you plan travel overland to China or Russia, you should carefully research Chinese and Russian travel restrictions and obtain all required visas before coming to Mongolia. It has become increasingly difficult to obtain visas at the Chinese or Russian embassies in Ulaanbaatar.
Even with an onward visa, overland travel into and out of Mongolia is not always possible. Most of Mongolia’s overland border crossings are closed to foreign travelers. However, the country’s most widely used overland ports of entry and exit–the Zamiin Uud border crossing in the south and the Sukhbaatar/Altanbulag border crossing in the north–are always open to foreign travelers. See the Country Specific Information pages on China and Russia for additional information on the entry, exit, and transit requirements for those countries.