The 90-day Visa on Arrival (USD 125) is designed for extended stays in Nepal — ideal for volunteers, yoga retreat and meditation centre participants, language school students, expedition climbers acclimatising before high-altitude ascents, or independent travellers on open-ended Himalayan itineraries. Available at the same entry points as the 15- and 30-day VOA categories. At USD 125 for 90 days (approximately USD 1.39 per day), this is excellent value for a long-stay visa. The annual cap of 150 cumulative days within a single calendar year still applies: a 90-day VOA used in full leaves only 60 days remaining under the cap. Extensions are available at USD 3 per day. Common long-stay activities include multi-circuit trekking (combining Annapurna, Everest, and Langtang regions), volunteering at schools or orphanages, intensive language and cultural immersion programmes in Kathmandu or Pokhara, and participation in Vipassana or other extended meditation retreats.

The 30-day Visa on Arrival (USD 50) is the most popular option for visitors to Nepal and the standard choice for most trekking itineraries. Available at Tribhuvan International Airport (Kathmandu), Pokhara International Airport, and all major land border crossings. Thirty days is sufficient for the classic Annapurna Base Camp trek (7–12 days), the Everest Base Camp trek (12–16 days), the Langtang Valley trek (7–10 days), a Chitwan National Park safari, and comfortable sightseeing in the Kathmandu Valley including Swayambhunath, Boudhanath, Pashupatinath, and Patan. Payment is in cash (USD, EUR, GBP, AUD, CNY) or by card. The visa can be extended inside Nepal at any Department of Immigration office at USD 3 per additional day (minimum 15-day extension at USD 45). The maximum cumulative stay in a single calendar year is 150 days. Pre-registration at nepalimmigration.gov.np is recommended to avoid filling out paper forms at the airport.

Nepal offers a Visa on Arrival at Tribhuvan International Airport (Kathmandu), Pokhara International Airport, and all major land border crossings with India (Birgunj/Raxaul, Bhairahawa/Sonauli, Kakarbhitta/Panitanki, Dhangadhi, Nepalgunj, and others). The 15-day tourist VOA costs USD 30 and is valid for a single entry. Payment is accepted in cash (USD, EUR, GBP, AUD, CNY) or by card at most booths. Bring one passport-size photo or use the digital photo kiosk at the airport — Tribhuvan has a well-organised VOA processing area with multiple kiosks. The Nepal VOA is one of Asia's most straightforward: forms are available in print and digital formats, queues move quickly, and the process typically takes under 30 minutes even at peak times. Pre-registration at nepalimmigration.gov.np speeds up the process further. The visa is extensible inside Nepal at any Department of Immigration office (Kathmandu, Pokhara, Chitwan) at USD 3 per additional day, minimum 15-day extension (USD 45). The maximum cumulative stay within a single calendar year (January to December) is 150 days across all visa categories combined. For trekking in restricted areas (Upper Mustang, Upper Dolpo, Manaslu Circuit, Tsum Valley, Kangchenjunga, Humla, Dolpa) additional restricted area permits are required regardless of visa type and must be arranged through a registered trekking agency.