Rent or purchase price is only half the story of what a Thai condo costs each month. Electricity, water and internet add a meaningful, and sometimes surprising, amount on top, and how much you pay depends as much on the way your building bills you as on how you actually live. This guide breaks down what each utility really costs per month in 2026, explains why two near-identical condos can produce very different bills, and lists what to check before you sign anything.
Electricity is almost always the largest utility bill, and air conditioning is by far the biggest factor in it. The official residential rate in 2026 sits at roughly 3.88 baht per unit for the first part of the year and about 3.95 baht for the middle months, billed on a progressive scale, plus a small fixed service charge and 7 percent VAT. Your provider depends on your address: the Metropolitan Electricity Authority (MEA) serves Bangkok, Nonthaburi and Samut Prakan, while the Provincial Electricity Authority (PEA) covers the rest of the country.
In real terms, a single 12,000 BTU bedroom air conditioner running ten to twelve hours a day can use around 1,800 baht of electricity by itself. At the government rate, a one-bedroom condo with moderate AC use typically lands between 1,200 and 2,500 baht a month, while heavy use, a work-from-home routine or a sun-facing unit with floor-to-ceiling glass can push it to 3,000 to 5,000 baht in the hot season.
Here is the detail that catches most newcomers out. Many condos, serviced apartments and older buildings do not bill you the government rate at all. The building buys electricity in bulk on one meter and resells it to residents at a private flat rate, commonly 6 to 9 baht per unit, sometimes more. That can easily double a heavy-AC bill. The markup is widespread and helps cover common-area power and admin, but rates above the official tariff are legally contestable for buildings managing several units, so it is worth questioning. Costs and billing practices also vary a lot by building and area, which our overview of the best areas to buy in Thailand can help you weigh up.
This cuts both ways. As a tenant or buyer, you want a unit on a direct MEA or PEA meter so you pay the government rate. As an owner letting your condo out, you will need to decide how to pass utilities on to tenants fairly, which is part of running a rental well, something we cover in our guide to maximizing income from rental property.
Water is the easy one. On the government rate it is genuinely inexpensive, usually only about 100 to 300 baht a month for a typical household, and often less for one person. As with electricity, though, some buildings rebill it at a private rate of 18 to 25 baht per unit, which can lift the bill to 200 to 500 baht. Because water should be cheap, an unusually high water charge is a useful red flag that the building marks up its utilities.
Home internet is straightforward and good value. A solid fibre plan of 300 to 500 Mbps from a provider like True, AIS, 3BB or NT costs roughly 350 to 700 baht a month, with entry plans cheaper and premium packages higher. Some condos bundle a basic connection into the rent or common fee, so it is worth asking; if not, installation is quick and a cheap mobile-data SIM makes a handy backup. Here is how the pieces fit together each month:
| Utility | Typical monthly cost | What to watch |
|---|---|---|
| Electricity (your AC use) | ~1,200-3,000+ baht | Air conditioning is the biggest factor |
| Electricity at a marked-up building | Often 6-9 baht/unit, much higher | Ask if it is a direct MEA/PEA meter |
| Water | ~100-300 baht | Cheap; a high bill signals a markup |
| Internet (home fibre) | ~350-700 baht | 300-500 Mbps from True, AIS or 3BB |
| Combined, typical | ~2,000-6,000 baht | Mostly driven by electricity |
One thing these bills do not include is the condo's common-area maintenance fee, charged separately by the juristic office at roughly 40 to 60 baht per square metre per month, along with any sinking-fund contribution. Keep that as a separate line in your budget so the utility figures above are not mistaken for your total monthly cost.
Most of your bill is within your control, because most of it is air conditioning. A few habits make a real difference:
Most utility surprises are avoidable with a few direct questions before you commit. Always ask the exact electricity rate per unit, the exact water rate per unit, and crucially whether you pay the government rate or a building-set rate. Ask whether you can have a direct MEA or PEA meter, and request a recent real bill rather than a vague verbal estimate. Finally, check the contract for meter minimums, water-pump or service fees, and penalties for late payment, since these small clauses can matter almost as much as the rate itself.
How much is electricity in a Thai condo per month?
Typically 1,200 to 3,000 baht at the government rate, mostly depending on how much air conditioning you use.
Why is my condo's electricity rate higher than the government rate?
Many buildings buy power in bulk and rebill residents at a private rate of 6 to 10 baht per unit instead of around 4 baht.
Is the condo markup on electricity legal?
It is common, but rates above the official tariff are contestable for buildings managing several units, so it is worth checking your meter type.
How much is water in a Thai condo?
Usually only about 100 to 300 baht a month, so an unusually high water bill is a sign of a markup.
How much does home internet cost in Thailand?
Fibre plans of 300 to 500 Mbps from providers like True, AIS and 3BB run roughly 350 to 700 baht a month.
What should I check before signing a lease?
Ask the exact electricity and water rates, whether they are government or building rates, and ask to see a recent real bill.
What is the biggest factor in my monthly bill?
Air conditioning, by far; the rate per unit and your AC habits together decide most of the total.
Once you know the rates and your own air-conditioning habits, utilities in a Thai condo are easy to budget: electricity is the big variable, water is cheap, and internet is modest and predictable. The real surprises come from building markups, not from the bills themselves, so checking the meter and the fine print before you sign is what saves money. If you are choosing a condo to rent or buy, DDA Real Estate can walk you through the essential things to check when buying a condo in Thailand and help you find a building whose running costs fit your budget.
