Rental Room, Dorm & Condo Electricity Cost 2026 + Your Tenant Rights
Many tenants get charged 7–10 THB/unit even though a new 2025 OCPB (สคบ.) law caps it at no more than 4.88 THB/unit and forbids any profit margin. This page gives the rate you should actually pay, your legal rights, how to check if you're overcharged, and what to do about it.
By law, dorm/rental electricity in Thailand 2026 is capped at 4.88 THB/unit (OCPB 2025 ceiling) with no profit margin — the fair rate you should actually pay is ≈ 3.95 THB/unit; 7–10 THB/unit is over the legal cap.
Under a new OCPB (สคบ.) law (the 2025 contract-control notification) a landlord of a rental room/dormitory/apartment may charge a tenant for electricity at NO MORE THAN 4.88 THB/unit — and may not profit on the power. The rate you should actually pay tracks the utility at about 3.95 THB/unit (Ft included — see what the Ft charge on your bill is (latest period)); the 4.88 THB/unit is the "legal ceiling" that must not be exceeded. If you're billed 7, 8 or 10 THB/unit, it's over the cap and the landlord is profiting on electricity, which is not allowed — a clause charging above it is void. You can complain to the Office of the Consumer Protection Board (สคบ./OCPB, 1166). See the correct rate at how many baht per unit 2026, the legal detail at the rental/dorm electricity law 2026, and the big picture in the Thailand electricity guide.
Condo Electricity: How Many Baht Per Unit?
How many baht per unit for condo electricity? A direct utility meter pays about 3.95 THB/unit, while a sub-meter read by the juristic person may charge no more than 4.88 THB/unit (OCPB 2025 ceiling) — anything above that is over the legal cap. How many baht per unit for condo/apartment electricity depends on which meter your unit uses: with a direct utility meter (MEA/PEA) in the resident's own name you pay the real residential electricity rate, averaging about 3.95 THB/unit (Ft 0.1623 included) — to put a meter in your own name, see the new electricity meter fees and steps or How to apply for an electricity / TOU meter for dorms & condos. But if the condo/apartment uses a sub-meter that the juristic person or owner reads and bills, the new 2025 OCPB (สคบ.) law sets an explicit ceiling of no more than 4.88 THB/unit, with no profiting on power. If your condo/apartment bills 7–10 THB/unit, it exceeds the legal cap; you have the same right as rental-room and dorm tenants to demand a reduction and complain to the OCPB (1166).
Dorm Electricity: How Many Baht per Unit in 2026?
Dorm, rental-room and apartment electricity in Thailand 2026 is legally capped at 4.88 THB/unit under the OCPB (สคบ.) 2025 law, with no profit margin allowed. The real utility rate is about 3.95 THB/unit (incl. Ft 0.1623). Being charged 7–10 THB/unit is over the legal cap — complain to the OCPB hotline 1166.
| Case | Rate (THB/unit) | Note |
|---|---|---|
| Direct utility meter (in tenant's name) | ~3.95 (home avg) | Cheapest — paid straight to the utility |
| Sub-meter read by landlord (OCPB legal cap) | ≤ 4.88 (OCPB cap) | OCPB 2025 law caps at 4.88 THB/unit + no profit margin |
| Over-charged (profiteering) | 7–10 (unlawful) | The excess is the landlord's profit — you can complain |
* The 4.88 THB/unit ceiling is the maximum the OCPB (สคบ.) 2025 contract-control notification allows a landlord to bill a tenant — no profit added. The rate you should actually pay tracks the utility at about 3.95 THB/unit (incl. Ft 0.1623). See the full all-type rate table at how many baht per unit.
Work out how much you overpay → Rental electricity checker (free)
The Law That Protects Tenants on Electricity (2025 OCPB Notification — 4.88 THB Cap)
In 2025 the Office of the Consumer Protection Board (สคบ./OCPB) issued the "notification of the Contract Committee — designating residential-building leasing as a contract-controlled business, B.E. 2568" (effective 4 Sept 2025) and moved to enforce it under the government "Quick Big Win" drive (Nov 2025). Its core rule: a landlord/dorm/apartment operator who installs a sub-meter and bills tenants for the units read must charge no more than the utility rate, subject to a hard ceiling of no more than 4.88 THB/unit, with no profit margin. They may collect only what the utility actually charges plus genuine service costs. A lease clause charging above the ceiling has no legal effect (void) even if the tenant signed it. Billing 7–10 THB/unit to make a margin therefore breaches this notification (the parallel กกร. price-control notification also remains in force). For the full legal detail and tenant rights, see the rental/dormitory electricity law 2026.
Important: this rule applies to the "electricity charge" tied to actual metered usage. A clearly-stated "common-area fee" or "service fee" is a separate matter, but the landlord must itemise it transparently — not hide it inside an inflated per-unit electricity rate.
Update Jul 2026: an NEPC resolution makes utility bills charge the first 200 units at ≤3.00 THB/unit automatically from the Sep-2026 bill cycle, and extends the residential rate to dorms/apartments/rental houses — but do not compare that 3.00 THB with the 4.88 THB cap directly, because they are quoted on different bases: the announced 3.00 THB is an energy rate only, excluding Ft, the monthly service charge and 7% VAT, whereas 4.88 THB (the OCPB 2025 rental cap) and 3.95 THB (the system average) are all-in figures. A Type 1.2 household using exactly 200 units pays about 3.52 THB/unit all-in (down from about 4.04 THB/unit without the measure). The right also lands on the building's utility meter (the landlord's account), not your sub-meter. The landlord's cost falls; the ceiling on what tenants pay remains the OCPB rule above. What tenants actually get and how to check: does the first-200-units 3-THB right reach tenants?
Rental Water Survey of 400 Listings: Median 18 THB/Unit
18.0
Median advertised water price (THB/unit)
From 180 listings advertising a numeric price (45.0% of the 400 sampled) · P25–P75: 17.0–23.5 THB/unit
So what about water — how many baht per unit? The answer from real data: we sampled 400 rental listings across 46 provinces (Jul 2026) and found 180 that advertised a numeric water price (45.0% of the sample). The median is 18.0 THB/unit, with a P25–P75 middle range of 17.0–23.5 THB/unit, and the two most common prices are 18 THB (47 listings) and 20 THB (32 listings) — together 43.9% of priced listings. The mean is 20.86 THB/unit but is pulled up by a few extreme values (max 100 THB/unit), so the median, not the mean, is the figure to compare against. Full statistics tables, the regional split, the six water-charge forms and the CC BY 4.0 raw data file: rental water survey of 400 listings, median 18 THB/unit.
Why Provincial Water Costs More Than Bangkok
Rental electricity barely differs nationwide, but water flips the pattern: the advertised median is 18.0 THB/unit in Bangkok (n=87) versus 20.0 THB/unit outside it (n=93). The explanation sits in the official tariff structure itself — this is not a finding that provincial landlords overcharge. The PWA residential ladder starts at 10.20 THB/m³ against MWA's 8.50 THB/m³ under the current notifications (ex-VAT), and under the PWA notification a Type-1 (residential) customer who uses more than 50 m³ in a month is charged at Type-2 rates counting from the 51st m³ onward (the first 50 m³ stay on the Type-1 ladder) — a threshold a whole dorm building on one master meter exceeds in virtually every case. For a building using ~300 m³/month the blended cost works out at roughly 20.99–25.09 THB/m³ ex-VAT (our own estimate derived from the official tariff structure, not an official figure), so the provincial median of 20.0 THB/unit sits below that estimated range and cannot be read as a profit margin. Bangkok is the opposite case: its 18.0 THB/unit median is above what MWA charges at every usage tier (the residential ladder tops out at 14.45 THB/m³ ex-VAT). All three mechanisms, with the official rate-comparison table: why provincial water costs more than Bangkok.
Your rights: the same OCPB notification that governs electricity also governs water — a landlord may charge no more than what the waterworks authority (MWA/PWA) actually bills, with no profit margin, and must show the calculation (the building's total waterworks bill ÷ the units on that bill × the units your room's sub-meter actually used). Unlike electricity, the law sets no fixed baht-per-unit water ceiling, because official rates are volume-tiered ladders — so the correct benchmark is the building's actual waterworks bill for that month, not any single number. To be explicit: the 18 THB/unit median is an advertised market price, not a legal cap. Tenants have the right to see the real waterworks bill and can complain to the OCPB hotline 1166, exactly as with electricity.
Basis of these figures: prices advertised in rental listings (a 400-listing sample across 46 provinces, Jul 2026), not audited bills. Every water statistic here is computed from the 180 listings that advertised a numeric price; the rest charge flat per person, flat per month, include water in the rent, bill the real water meter, or ask you to call. And 85 of the 400 listings (21.3%) advertise neither an electricity nor a water rate — you have to call to find out.
Common Landlord Lines vs Your Correct, Law-Based Response
When you're overcharged, it's hard to know what to say. This table pairs the lines a landlord/dorm operator commonly uses with what you can calmly reply — grounded in the กกร. notification and real tenant rights (not an argument, just citing the law that already exists):
| The landlord says | You can reply (law-based) |
|---|---|
| "It's 8 THB/unit because it already includes the common-area electricity." | Electricity must be billed on actual units at the utility rate, and any common-area fee must be a separate line item. Under the กกร. notification you can't bury profit or shared costs inside an inflated per-unit price — please itemise the electricity and the common-area fee separately. |
| "You signed the lease, so you have to pay what you agreed to." | A clause that charges above the utility rate conflicts with the กกร. notification governing residential lease contracts, so it has no legal effect even if you signed it (see the rental-law page for detail). |
| "The meter is mine/the dorm's — you don't get to see the utility bill." | A tenant may ask to see the MEA/PEA invoice to confirm the rate charged matches what the utility actually bills. Refusing while charging 8–10 THB/unit is a red flag for over-collecting profit. |
| "Everywhere charges 7–8 THB/unit, it's completely normal." | Many places doing it doesn't make it legal. The real residential rate is about 3.95 THB/unit, and the 2025 OCPB (สคบ.) law caps the charge at no more than 4.88 THB/unit — so 7–8 THB/unit clearly exceeds the ceiling. If it's not adjusted, a tenant can complain to the OCPB on 1166 or the Department of Internal Trade on 1569. |
Note: the point of this table is to help you communicate with facts, not to confront. Many cases resolve simply by pointing out what the law requires. See the full complaint steps below.
How to Check If You're Being Overcharged
Do these 3 simple steps to find out whether your rental electricity is fair:
1. Find the per-unit rate on your bill/receipt — divide the electricity charge ÷ the units used. If it's above the 4.88 THB/unit legal ceiling it's clearly unlawful, and anything above ~3.95 THB/unit (the real utility rate) already signals profiteering.
2. Compare with the real utility rate — the 2026 residential average is about 3.95 THB/unit (incl. Ft). See the full tiered rates at how many baht per unit. If yours is much higher, ask the landlord how it's calculated.
3. Ask to see the building's actual utility bill — a tenant may request the MEA/PEA invoice to verify the real rate. If the landlord refuses and charges 8–10 THB/unit, that's a clear sign you're being taken advantage of.
Worked Example: A Rental Room Using 200 Units/Month
Suppose a rental room uses 200 units/month. At the rate you should actually pay (the utility ~3.95 THB/unit, Ft included) = 200 × 3.95 = about 790 THB/month; even at the maximum 4.88 THB/unit legal ceiling it's only 200 × 4.88 = 976 THB/month. But if the landlord charges 8 THB/unit = 200 × 8 = 1,600 THB/month. The 810 THB/month gap over the fair rate (about 9,720 THB/year) is the "electricity profit" the landlord over-collects — over the 4.88 ceiling and forbidden by law — which is exactly why checking your per-unit rate is so worthwhile.
Tip: keep every monthly electricity receipt/slip, photograph the meter at move-in and move-out, and note the meter reading at each month-end (not sure how to read it? see how to read your electricity meter, dial/digital). This evidence proves your actual usage and helps a lot if you need to file a complaint.
What to Do If You're Overcharged
If you've confirmed you're charged above the utility rate, follow these steps:
Talk to the landlord first — point out that under the กกร. notification they can't charge above the utility rate, and ask them to bill at the actual rate. Many cases resolve through a conversation.
Complain to the OCPB (hotline 1166) — the Office of the Consumer Protection Board handles unfair rental-electricity charges. Bring your bills, lease and meter photos.
Notify the Department of Internal Trade (hotline 1569) — for controlled goods/services, including rental electricity above the cap, you can complain to the Department of Internal Trade directly.
Keep complete evidence — past bills, the lease, your messages with the landlord, and meter photos. The clearer the evidence, the faster your case moves.
About this page
Compiled by the CapSolar team, led by Frank Lee (Founder). The tenant-rights content references the Central Committee on Prices of Goods and Services (กกร.) notification and OCPB guidance; rates are checked against MEA/PEA and kept current to the latest Ft period. This page is general information, not personal legal advice — confirm the latest notification and consult the relevant authority before acting.
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