Taxes on the thai company has to be paid two times a year along with the accounting expenses. Maintenance should be calculated to maybe around roughly 100 000 a year.. That is for paint.. Repair of pipes.. , toilets.. , sprayers.. new tables.. revarnishing.. , oiling up doors.. , windows... Changing tiles.. etc.. It depends if you want to keep it spiffy or not. Gardeners... 2-5000 baht a month.. Pool same.. So there goes around 10k.. then a maid set you back around the same.. So then.. electric, maid, gardener, pool care, and maintenance funds... Around 50 a month or a little less hopefully.... Then there is the new land tax that is around 1-2-3% (depending on ownership and type of house, villa, hotel , business etc..) Then with a villa of this size.. Ecxpect electric pr. airconditioner to be around 1500 pr. month so with 5 airs blasting its 7500.. plus washing machines.. speakers.. tvs.. etc.. garden .., pumps.. all that.. Its easy 10k a month.. If you only use one aircondition 8 hours a night.. of course.. much less. This was a rant.. sorry about that.. , But its more or less.. Put off 200 000 for all expenses a year or a little more.. and you will be on the safe side ... Normally. Renting is cheaper.. but more expensive in the long rund since one normally gain value of the house and land over time.. However.. That is of course not a sure thing. Build and buy if you dare.. It normally comes out cheaper.. But i know people have different needs and different budgets.. and some simply dont care which is fine.. You have to weigh in your own personal requirements and needs.