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Utility Bills  ·  Updated September 2026

TNB Change of Tenancy Malaysia: The One Step That Keeps You From Paying Your Tenant's Unpaid Electricity Bill

If the TNB account stays in your name after your tenant moves in, you're on the hook for every ringgit they don't pay — even with a signed tenancy agreement saying otherwise. Here's exactly how the Change of Tenancy process protects you.

9 min read Last updated September 2026 Verified by MyRentAssist

In this guide

  1. What Is a TNB Change of Tenancy (and Why It's Not Optional)
  2. Why Landlords Skip It — and What It Actually Costs Them
  3. Who's Liable If You Never Do a COT
  4. Documents You Need for a Change of Tenancy
  5. How to Do a TNB Change of Tenancy, Step by Step
  6. What Happens If Your Tenant Still Doesn't Pay After COT
  7. What About Water and IWK Accounts?
  8. FAQ
  9. Quick Summary: Are You Protected?
TNB Change of Tenancy Malaysia 2026 infographic — landlord liability shield against unpaid electricity bills

Handing over the keys feels like the finish line — deposit collected, agreement signed, tenant moved in. But there's one small government form that decides whether a runaway electricity bill six months from now becomes your tenant's problem or yours: the TNB Change of Tenancy, or COT. Skip it, and your tenancy agreement's electricity clause is worth nothing the moment TNB comes knocking, because TNB was never a party to that agreement in the first place.

Pendek kata, TNB doesn't read your tenancy agreement. TNB only looks at whose name is on the account. If that's still you, you're the one who pays — no matter what your contract says.

What Is a TNB Change of Tenancy (and Why It's Not Optional)

A Change of Tenancy is the formal process of transferring the electricity account at your rental unit from your name into your tenant's name for the duration of their stay — and then transferring it back to you (or to the next tenant) when they leave. It's a TNB administrative process, separate from your tenancy agreement, and it's the only thing that actually shifts TNB's billing relationship away from you.

Landlords often assume that because the tenancy agreement states "tenant is responsible for utility bills," that clause alone protects them. It doesn't — not with TNB. That clause is enforceable between you and your tenant in a civil dispute, but it means nothing to TNB, who will simply pursue whoever's name is registered on the account. If that's you, TNB comes after you, full stop.

Do It Before or On Move-In Day
The most common mistake isn't refusing to do a COT — it's putting it off. "We'll sort it out next week" turns into three months of usage racking up under your name. Complete the COT before or on the day your tenant moves in, no exceptions.

Why Landlords Skip It — and What It Actually Costs Them

Nobody skips the COT on purpose. It usually happens one of a few ways:

The cost of skipping it isn't hypothetical. A tenant running aircon around the clock, operating a home business, or — in more extreme but real cases — running unauthorised equipment, can quietly rack up an electricity bill far beyond what a normal household uses. If the account is in your name, that entire balance is yours to settle before TNB will reconnect supply for a new tenant, regardless of what your tenancy agreement says about who "should" have paid it.

Who's Liable If You Never Do a COT

No COT Done = 100% Landlord Liability
If the TNB account stayed in the owner's name because no Change of Tenancy was completed, the owner is 100% liable for the full outstanding amount — regardless of what the tenancy agreement's electricity clause says. TNB's contract is with the account holder, not with whoever is physically living in the unit.

This is the single fact that trips up most landlords. A tenancy agreement is a private contract between you and your tenant — it can absolutely say the tenant must pay all utilities, and you could sue them for reimbursement afterwards. But that's a separate civil claim, on top of the bill TNB has already collected from you or disconnected your unit over. A completed COT avoids that entire chain of events by making the tenant the account holder from day one, so TNB pursues them directly.

Documents You Need for a Change of Tenancy

The process is straightforward once you have the paperwork ready. Have these on hand before move-in day:

Document Who provides it Notes
Completed TNB application form Landlord & tenant, jointly Available via the myTNB app, myTNB portal, or at a Kedai Tenaga
Tenant's IC copy Tenant Must be marked "Untuk Kegunaan TNB Sahaja" (for TNB use only)
Signed and stamped tenancy agreement Landlord TNB may reject an unstamped agreement — see our stamp duty guide if yours isn't stamped yet
Security deposit for the account Tenant Refundable when the tenancy ends and the account reverts
RM10 stamp duty + processing fee Either party Nominal cost to complete the transfer

How to Do a TNB Change of Tenancy, Step by Step

  1. 1
    Gather the documents above before move-in day Chase this at the same time you're finalising the tenancy agreement, not after the tenant has already collected the keys.
  2. 2
    Submit via myTNB app, the TNB website, or a Kedai Tenaga Online submission is faster for most cases; a physical visit may be needed if the account has any existing arrears or irregularities.
  3. 3
    Pay the security deposit and processing fee The deposit amount depends on the tariff category and expected usage — TNB will confirm the exact figure during submission.
  4. 4
    Get confirmation and the new account details Keep a copy of the confirmation — this is your proof that the account changed hands on a specific date, useful if any dispute over usage timing ever comes up.
  5. 5
    Do a reverse COT when the tenant moves out The account needs to transfer back to your name (or straight to the next tenant) — don't assume this happens automatically when a tenant leaves.

What Happens If Your Tenant Still Doesn't Pay After COT

COT Redirects the Debt, Not the Disconnection Risk
With a completed COT, TNB pursues the defaulting tenant directly for the arrears — you are not personally liable for their unpaid balance, and you are not required to settle their debt in order to reconnect supply for a new incoming tenant. That said, the unit itself can still sit with disconnected supply until the debt is cleared by the tenant (or you choose to pay it yourself to speed up re-letting) — so it's still worth knowing early if a tenant's usage or payment pattern looks off.

This is exactly the gap that catches landlords out even after doing everything "right." COT protects your personal liability, but it doesn't alert you the moment a bill starts climbing — you'd typically only find out when the tenant complains about a warning letter, or when you're trying to re-let the unit and discover an unresolved balance sitting on the account.

What About Water and IWK Accounts?

The same underlying principle — whoever's name is on the account is who the utility provider chases — applies to Air Selangor and other state water operators, though the transfer process and documentation differ slightly from TNB's. Sewerage charges under IWK follow their own quieter rules again, and are easy to lose track of since bills rarely draw attention the way a disconnection notice does. We'll cover both in a dedicated guide soon — for now, treat every utility account attached to your unit, not just TNB, with the same "change it before move-in" discipline.

Frequently Asked Questions

Q Do I need to do a COT every single time I get a new tenant?
Yes. Each new tenancy needs its own Change of Tenancy — you can't reuse a previous tenant's COT, and you shouldn't leave the account under a tenant's name after they've moved out either, since that creates confusion (and risk) for whoever moves in next.
Q What if my tenant refuses to complete the Change of Tenancy?
Make it a condition of handing over the keys, not an optional favour. Since you're the one legally exposed if it's skipped, it's reasonable to require the COT be completed — with your assistance — before or on the move-in date, and to build this into your tenancy agreement as a clear obligation.
Q How long does a TNB Change of Tenancy take?
Online submissions are typically processed within a few working days, though timing can vary if the account has existing arrears or if additional verification is needed. Start the process a few days before move-in so it's settled by the time the tenant collects the keys.
Q Is there a cost to the landlord for doing a COT?
The main costs — the security deposit and the RM10 processing fee — are typically borne by the incoming tenant, since they become the account holder. Landlords generally aren't out of pocket for the transfer itself.
Q What happens to the tenant's deposit when they move out?
It's refunded once the account is settled and transferred back out of the tenant's name, assuming there's no outstanding balance. This is separate from the rental security deposit held under your tenancy agreement.
Q Can the whole process be done online, or do I need to visit a TNB office?
Most straightforward cases can be done entirely through the myTNB app or website. A visit to a Kedai Tenaga is usually only needed if the account has unresolved arrears, discrepancies, or if online submission is rejected for some reason.

Quick Summary: Are You Protected?

Your situation Are you liable for tenant's unpaid bill? What to do
COT completed before move-in No TNB pursues the tenant directly — you're covered
Account still in your name, no COT done Yes — 100% Do a COT immediately, even mid-tenancy, to stop further exposure
COT done, but you never monitor usage No personal liability, but re-letting can be delayed Keep an eye on consumption patterns so surprises don't surface at move-out
Tenant moved out, account not reverted Unclear — creates confusion for the next tenancy Complete the reverse COT before your next tenant moves in
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What To Do Next?

A completed Change of Tenancy stops you from being personally liable for a tenant's unpaid electricity — but it's a one-time form, not an ongoing safety net. The gap it leaves is exactly what MyRentAssist's utility monitoring is built to close: catching unusual usage or unpaid bills early, across every utility account tied to your unit, not just after something's already gone wrong.

Catch What COT Alone Can't

Try it free for 3 months, or WhatsApp us and we'll walk you through it — no pressure, no credit card.

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This article is for general guidance only and does not constitute legal advice. TNB procedures, required documents, and fees can change — confirm current requirements with TNB directly (myTNB app, website, or your nearest Kedai Tenaga) before relying on any step described here.