Koh Samui isn't a backpacker's island any more — it's a base for digital nomads, remote workers, and expat families. But the "island tax" is real: compared with Chiang Mai or Bangkok, limited logistics push some costs up, and a couple of them — private electricity markups, dry-season water trucks — catch new residents out. This is a plain-numbers breakdown of what a long-term month here actually costs, and how to estimate your own.
We're Arthur and Grace, and we manage two long-term townhouses at Park Samui in Plai Lem — so the rental figures here come from running real long-term leases, not a listings page.
Two rough budgets to start from
- Single nomad — about THB 43,000–54,000/month. A modern studio or shared townhouse, a scooter, and a mix of local and Western food.
- Expat family of four — about THB 97,000–125,000+/month. A three-bedroom villa, a car, international-school fees, and regular shops at the premium supermarkets.
The monthly cost breakdown
These are 2025–2026 market ranges for the Plai Lem, Bophut, and Bang Rak areas. Treat them as a worksheet — run your own numbers down the list to estimate a monthly total.
- Base rent (long-term): THB 20,000–60,000 — watch for high-season markups (Dec–Feb).
- Electricity: the government (PEA) rate is about THB 4–5 per unit, but some private developments bill THB 8–10 per unit.
- Water: THB 100–500 a month; a dry-season water-truck delivery runs THB 500–800.
- Fibre internet: THB 600–1,200, plus possible installation fees at remote villas.
- Scooter or car rental: THB 3,000–20,000, before fuel and insurance.
- Pool / garden maintenance: THB 3,000–5,000, often not included in villa rent.
At Park Samui, fibre internet, weekly cleaning, and a dedicated workspace are already in the base rent — so a few of those lines are covered before you start adding them up.
Housing and rent
Housing is your biggest monthly line. The Samui market splits between short-stay holiday rentals and long-term residential leases; for a one-to-twelve-month stay, negotiating a fixed monthly rate is what keeps it affordable.
Where long-term residents tend to look:
- Plai Lem & Choeng Mon — upscale, quiet, and close to the airport. Where Park Samui sits. Best for families and professionals.
- Bophut (Fisherman's Village) — the island's social hub, great for dining, but noisier and pricier.
- Maenam — a more old-school feel with cheaper beachfront, though internet can be patchy in pockets.
One thing to plan around: rent swings 30–50% between low season (May–October) and peak (December–January). Sign a 12-month contract and you lock in a lower average. We offer flexible stays from one to twelve months — a rare middle ground for nomads — and you can see the full seasonal calendar on our pricing and availability page.
The "AC tax": utilities
Electricity is the most volatile line in any Samui budget. Modern rentals run powerful air-conditioning, and many landlords resell power as a middleman. The government (PEA) rate is roughly THB 4–5 per unit; some private villa developments charge THB 8–10, which can double your bill — a THB 3,000 month at the government rate becomes THB 6,000. Always ask the per-unit rate before signing.
Water is the other dry-season surprise. When wells or the government supply run low, you pay for a water truck at THB 500–800 a delivery. Ask whether the property has a large storage tank or a reliable government line.
Food, lifestyle, and remote work
Your lifestyle decides whether the "extras" come to THB 15,000 or THB 50,000 a month.
- Groceries: local fresh markets can be around 40% cheaper than Tops or Makro. Budget THB 6,000–10,000 per person for a mix of local and imported food.
- Dining out: a street Pad Thai is THB 50–70; a sunset dinner in Bophut with a glass of wine is THB 1,200+. Most nomads settle around THB 400 a day.
- Coworking and internet: coworking spaces run THB 3,000–5,000 a month — a cost you avoid where workspace and fibre are included, as they are at Park Samui.
Transport and visas
Public transport (songthaews) is pricey on Samui, so you'll want your own wheels.
- Scooter: THB 3,000–4,500/month — fine solo, less so in the rain.
- Car: THB 15,000–25,000/month — effectively essential for families.
- The Destination Thailand Visa (DTV): the new standard for remote workers, allowing long stays without constant border runs. We cover it in detail in our DTV visa Koh Samui accommodation guide.
Renting direct: what's already included
The figures above assume you're piecing services together yourself. Renting an owner-managed townhouse folds several of them into one predictable monthly rate. At Park Samui that means fibre internet, a dedicated workspace, weekly cleaning, two shared pools, a gym, gardens, and 24-hour security — with no agency markup and a one-month deposit on clear terms. Owner-managed payments can also go via Wise or Revolut to save on bank fees.
Frequently Asked Questions
Is electricity included in long-term rent on Koh Samui?
Rarely. In almost all long-term rentals, electricity and water are billed separately by usage, which keeps the base rent lower — so always confirm the per-unit electricity rate before you sign.
What's the most family-friendly area?
Bophut and Bang Rak are popular with families: easy access to international schools (such as ISS or Panyadee) and close to supermarkets and calm, kid-friendly beaches like Choeng Mon.
How reliable is the internet for video calls?
Fibre is now standard in developed areas like Plai Lem, though Wi-Fi coverage inside large concrete villas can be patchy. Our Park Samui townhouses are set up for remote work, with strong signal in the dedicated workspace areas.
Do I need to pay a deposit for a long-term stay?
Yes — typically one month's rent as a security deposit. With owner-managed properties you can often pay via Wise or Revolut to avoid high bank fees.
More guides
- The 7 best beaches of Koh Samui
- Day trips by boat from Koh Samui
- DTV visa Koh Samui accommodation guide
Ready to simplify the move?
Skip the hidden costs and agency fees. Our owner-managed townhouses at Park Samui start at THB 45,000/month with fibre internet, a workspace, and weekly cleaning already included — in Plai Lem, five minutes from Choeng Mon Beach. Check availability and book direct, or read more about the townhouses.