Cost Excludes:
Hotel in Kathmandu/ sightseeing
Porters for trekking( add on) 250$ sharing with two trekkers
International airfares
Travel/trekking insurance
Kathmandu sightseeing Entrance fees
Nepal entry visa fees.
Khumbu Tax Worth 20$
Mountain rescue charges or insurance
Bottled drinks on trek (cold and alcoholic) and Hot Drinks
Lunch and dinner during your stay in Kathmandu.
Additional food or drink on trek in addition to three standard meals
Personal expenses, Emergency Expenses, road blocked, snakes, desert.etc
Tips, Hot Showers
Which is not mentions in Cost Included Section.