Over-charged rental electricity: where to report it 2026 — from collecting evidence to filing
Knowing you are being over-charged but not knowing where to start is where most people stop. This page does not re-explain the law — it puts the actual work in order: what evidence you need, which door to knock on, and what happens after you file.
You can report over-charged rental electricity to the OCPB on hotline 1166 or online at complaint.ocpb.go.th, and in parallel to the Damrongdhama Center on 1567 or the Public Service Center on 1111 — all free of charge. What decides how far the complaint travels is not which number you call but whether your evidence is complete. You need four things at minimum: the lease clause stating the electricity rate, meter photographs from two consecutive months with visible dates, the bills or receipts the landlord issued, and your own computation of the difference. To make it concrete: a room using 120 units a month costs the utility about 466 THB (3.88 THB/unit); at 8 THB/unit the landlord's bill is 960 THB, a difference of 494 THB a month, and at the 4.88 THB/unit ceiling in the 2025 OCPB notification it would be 586 THB. That difference is the number an officer works from. Before filing, read the legal basis at rental and dorm electricity law and check your own rate at rental electricity per unit.
The four pieces of evidence to have before you file
Most complaints that go nowhere fail not because they lack merit but because the numbers cannot be proved. These four take under an hour in total and you can collect all of them yourself without anyone's permission.
1. The lease clause stating the rate
Photograph the page that states the per-unit price. If there is no written lease, a notice on the wall, a LINE message, or a receipt with the rate written on it all serve the same purpose and all count as evidence.
2. Meter photos from two consecutive months
Capture the whole row of digits and keep the file's date. The difference between the two readings is the units actually consumed — the single most direct way to rebut a bill whose unit count does not match.
3. The bills or receipts the landlord issued
Keep as many months back as you have — the more months, the clearer the pattern. If the bill does not separate electricity from water or common-area charges, say so, because that is itself a contract-transparency issue.
4. Your own computation of the difference
Write a short note: units used, rate charged, total charged, and what the utility rate would have produced. The step-by-step method is at how to calculate a rental electricity bill, or let the rental electricity checker do it for you.
All four can live as files on your phone; nothing needs printing. Officers accept image files, and having them also helps when you raise it with the landlord directly first.
Which channel matches which problem
Calling the wrong place does not kill a complaint, but it slows it down, because each agency owns a different part of the same problem. This table matches them up.
| Agency | Contact | Use it when |
|---|---|---|
| OCPB (Consumer Protection Board) | 1166 · complaint.ocpb.go.th | The main door — charging above the ceiling, unfair lease terms, or opaque billing |
| Damrongdhama Center | 1567 | When you want the provincial authorities to inspect on site, or prefer to file in person at the provincial hall |
| Public Service Center | 1111 | The government's general line — use it when you are unsure which agency owns the issue and want it routed for you |
| Electricity authority (MEA / PEA) | MEA 1130 · PEA 1129 | To confirm the correct residential rate for comparison, or to have the building's main meter checked — they do not regulate your landlord |
| Dormitory registrar (provincial / local office) | Provincial or district social development office | A dormitory registered under the Dormitory Act that is breaching its registration conditions |
You may file with more than one channel at once; it is not treated as duplication and you do not have to choose. If you are unsure what the correct rate is, the reference points are the system-wide average of about 3.95 THB/unit and the 4.88 THB/unit resale ceiling — where both come from is set out at electricity price per unit 2026.
Filing, in four steps
Work through these in order. The first step matters more than it looks — a good number of cases end there without a complaint ever being filed.
Step 1 — put it to the landlord in writing first
A short LINE message or email is enough: state the units, the rate charged, and note that under the 2025 OCPB notification electricity charged to tenants must carry no profit margin and must not exceed 4.88 THB/unit. This does two jobs — many cases end here, and if yours does not, the message becomes evidence that you tried to resolve it first.
Step 2 — file with the OCPB
Call 1166 or file online at complaint.ocpb.go.th. Enter the lessor's name and address, the building's location, the rate charged, and attach the four evidence files. There is no fee, and if you would rather the landlord not know who complained you can say so to the officer.
Step 3 — expect contact, and be ready to answer
An officer will typically make contact to request more information or to mediate between the two sides. Keep the evidence files ready to resend and note the date of every contact. This page does not put a number on timelines or penalties, because they depend on the case and should not be guessed at.
Step 4 — while you wait, keep paying the correct portion
Withholding the entire bill turns the matter into your own breach of the lease. The safer route is to pay the amount you have computed as correct, keep every transfer slip, and state in writing that the difference is under complaint.
Three mistakes that stop a complaint going anywhere
Stopping payment on the whole bill. The most common mistake and the fastest to backfire, because it turns you from complainant into the party in breach. Pay the portion you believe correct and claim the difference back afterwards.
No dated meter photograph. Without proof of the units actually used, the dispute collapses into one person's word against another's. Photograph the meter at the start of every month, including months when nothing is wrong.
Folding water or common-area charges in and dividing by units. The resulting figure is inflated and weakens the complaint the moment it is checked. Separate the line items from the start and the number will hold up.
One more thing worth knowing: if your unit has a utility meter of its own the case is far simpler, because there is no intermediary adding a margin, and the correct monthly service charge is 24.62 THB for households above 150 units — not a figure the landlord sets. If you cannot tell which arrangement a condo is on, the test is at condo electricity cost per unit. One case to keep separate: if the landlord accuses you of stealing power, or you suspect the room's meter has been tampered with, that is a different matter from over-charging and carries its own criminal exposure — see an electricity-theft accusation and the meter-tampering penalty.
Who wrote this
Frank Lee, Founder of CapSolar — a commercial solar design-and-build company in Thailand with 80+ MWp installed across 150+ projects, 100+ clients served and 85K+ tons of CO₂ avoided. We read real building electricity bills every week, so this page concentrates on what a bill and a meter can prove. It is not case-specific legal advice; if your situation is complicated, speak to an OCPB officer directly.
FAQ
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