ลงทุนซื้อคอนโดเพื่อปล่อยเช่า: คุ้มไหมในปี 2026

You have been eyeing that new condo launch near On Nut BTS for months now. The developer promises 6% rental yield, the showroom smells like money, and the sales rep keeps calling you every other day. But here is the real question: if you buy a condo in Bangkok to rent out in 2026, will the numbers actually work? Or will you end up with a half-empty unit, paying monthly fees out of pocket while the condo slowly depreciates? Let us break it down with real numbers, real locations, and zero sales pitch fluff.

The Current State of Bangkok's Condo Rental Market

Bangkok's condo market has been shifting steadily since the post-pandemic recovery. According to CBRE Thailand's latest market reports, the average occupancy rate for condos in prime Bangkok areas sits around 85 to 90 percent as of late 2025. That sounds decent, but it masks a huge gap between well-located units and poorly positioned ones.

The reality is this: condos near BTS and MRT stations with strong expat tenant demand are doing fine. Think Thong Lo, Phrom Phong, Ari, and sections of Silom. Meanwhile, oversupplied corridors like certain parts of Bearing, Bang Na, and outer Rama 9 are struggling with vacancy rates above 20 percent.

For example, a one-bedroom condo at Life Sukhumvit 62, right next to Bang Chak BTS, can pull in roughly 15,000 to 18,000 THB per month. But a similar-sized unit five kilometers further down Sukhumvit, away from any train station, might sit empty for months or fetch only 8,000 to 10,000 THB. Location is not just king in Bangkok rental investment. Location is the entire royal family.

Here is a key data point to remember: according to DDproperty's Property Index, the average asking rent for a one-bedroom condo in central Bangkok ranges from 15,000 to 35,000 THB per month, with gross rental yields typically falling between 3.5% and 5.5% depending on the neighborhood and building age.

Running the Numbers: What Realistic Yield Looks Like

Developers love to throw around "guaranteed rental returns" of 6 to 8 percent. Let us be honest about what actually happens. Say you buy a 35-square-meter one-bedroom condo near Ekkamai BTS for 4.5 million THB. A realistic monthly rent would be around 18,000 to 22,000 THB.

Take 20,000 THB as your monthly rent. That gives you 240,000 THB per year in gross rental income. Your gross yield is about 5.3 percent. Not bad on paper. But now subtract the real costs that developers never mention in those glossy brochures.

Common area fees run around 2,500 to 3,500 THB per month for a building like this. Property tax, even with Thailand's relatively low rates, adds a few thousand per year. You will also face income tax on rental earnings, which the Thai Revenue Department expects you to declare. Factor in one month of vacancy per year, occasional maintenance, and agent fees, and your net yield drops to somewhere between 3 and 4 percent.

Is 3 to 4 percent net yield worth it? That depends on your alternative investments and your appetite for dealing with tenants, repairs, and the occasional midnight call about a broken air conditioner. But it is honest, and honest numbers are what you need before signing anything.

Best Bangkok Neighborhoods for Rental Investment in 2026

Not all neighborhoods are created equal when it comes to rental demand. Some areas attract a steady flow of expat tenants willing to pay premium rents. Others are flooded with new supply and compete on price alone. Here is how the key areas stack up for buy-to-rent investors.

Neighborhood	Nearest BTS/MRT	Avg. Purchase Price (1-Bed)	Avg. Monthly Rent (1-Bed)	Estimated Gross Yield	Tenant Profile
Thong Lo / Ekkamai	Thong Lo BTS, Ekkamai BTS	5.5 to 8 million THB	25,000 to 40,000 THB	4.5 to 5.5%	Japanese expats, professionals
Ari / Saphan Khwai	Ari BTS, Saphan Khwai BTS	4 to 6 million THB	18,000 to 28,000 THB	4.5 to 5%	Thai professionals, young expats
On Nut / Phra Khanong	On Nut BTS, Phra Khanong BTS	3 to 4.5 million THB	13,000 to 20,000 THB	4.5 to 5%	Budget expats, digital nomads
Silom / Sala Daeng	Sala Daeng BTS, Si Lom MRT	5 to 9 million THB	22,000 to 38,000 THB	4 to 5%	Corporate expats, embassy staff
Rama 9 / Ratchadaphisek	Phra Ram 9 MRT, Thailand Cultural Centre MRT	3 to 5 million THB	12,000 to 20,000 THB	4 to 5%	Chinese expats, Thai professionals
Bearing / Samrong	Bearing BTS, Samrong BTS	1.8 to 3 million THB	7,000 to 12,000 THB	3.5 to 4.5%	Students, budget tenants

Consider a concrete scenario. A friend of mine bought a one-bedroom at The Line Ratchathewi near Ratchathewi BTS for around 5.2 million THB three years ago. He consistently rents it out at 23,000 THB per month to expats working in the Siam area. His gross yield sits at about 5.3 percent, and after all costs, he nets around 3.8 percent. The building is well-maintained, the location is walkable to major offices, and he rarely has vacancy beyond two weeks between tenants. That is what a solid rental investment looks like.

The Hidden Costs That Kill Your Returns

This is where most first-time condo investors in Bangkok get burned. They calculate gross yield and assume that is what they will pocket. The hidden costs are real and they add up fast.

Sinking fund contributions are a one-time payment at purchase, usually 400 to 600 THB per square meter. For a 35-sqm unit, that is 14,000 to 21,000 THB upfront. Common area maintenance fees are monthly and typically range from 50 to 80 THB per square meter. For that same 35-sqm condo, expect 1,750 to 2,800 THB every month whether the unit is rented or not.

Air conditioning units need servicing or replacement every few years. Water heaters break. Washing machines die. Budget at least 15,000 to 25,000 THB per year for maintenance and unexpected repairs. Then there are agent commissions if you use one to find tenants, usually one month's rent per lease.

Here is a real scenario that catches people off guard. A colleague bought a condo at Aspire Sukhumvit 48 near Phra Khanong BTS. Great location, decent price. But the building's common area fees jumped by 30 percent after two years because the juristic committee decided the building needed a major lobby renovation. That extra 800 THB per month ate directly into his rental profit. Always check the building's financial health and reserves before buying.

Resale Value: The Other Side of the Investment

Rental yield is only half the equation. Capital appreciation matters too, and Bangkok condos have a mixed record on this front. New condos from major developers like Ananda, Sansiri, and AP Thai tend to drop in resale value by 10 to 15 percent once they become "secondhand," especially if there are newer projects in the same area.

However, condos in truly supply-constrained locations can hold or gain value over time. A unit at Ashton Asoke near Asoke BTS and Sukhumvit MRT interchange, for instance, has held its value relatively well because there simply is not much new land to develop in that specific spot. The combination of strong rental income and stable resale value is what separates a good investment from a mediocre one.

On the other hand, if you bought in an area where ten new projects launched in the same year, good luck selling for what you paid. Supply matters enormously in Bangkok, and developers have not slowed down their launch pipelines in corridors like outer Sukhumvit and Ratchadaphisek.

Tax Implications You Cannot Ignore

Rental income in Thailand is taxable. If you are a Thai tax resident, your rental income gets added to your personal income and taxed at progressive rates that can go up to 35 percent for high earners. If you are a foreigner, you may also have tax obligations in your home country, depending on your tax residency status.

There are legitimate ways to reduce your tax burden. You can deduct actual expenses or opt for a flat 30 percent deduction on rental income for buildings, as outlined by the Thai Revenue Department. Keeping proper records of all maintenance costs, common fees, and depreciation can make a meaningful difference to your after-tax returns.

A practical example: if your condo earns 240,000 THB per year in rent and you claim the 30 percent flat deduction, your taxable rental income becomes 168,000 THB. At a marginal tax rate of 20 percent, that is about 33,600 THB in tax. Not a dealbreaker, but it is another real cost that many investors forget to include in their calculations.

So, is buying a condo in Bangkok for rental income worth it in 2026? The honest answer is: it can be, but only if you buy in the right location, at the right price, and go in with realistic expectations of 3 to 4.5 percent net yield. It is not a get-rich-quick play. It is a slow, steady way to build wealth, and it works best when you treat it as a business rather than a passive income dream. Do your homework, run the numbers with real costs included, and always prioritize proximity to mass transit over flashy developer promises.

If you are looking for tenants or want to understand what renters in Bangkok are actually willing to pay for a condo like the one you are considering, check out superagent.co. The platform tracks real rental data and connects landlords with verified tenants across Bangkok, which makes it a lot easier to ground your investment decisions in reality rather than developer fantasy.