Quick answer
Indah Water Konsortium (IWK) sewerage charges are billed to the registered property owner, not the tenant. The IWK account does not transfer to a tenant's name. The landlord pays IWK and usually recovers the cost through the rent price or a specific tenancy agreement clause.
Unlike electricity or water, IWK does not offer a routine change-of-tenancy process that puts the bill in the tenant's name. The sewerage service account follows the property — so even when a tenant occupies the unit, the IWK bill arrives at the owner's address or is linked to the owner's account. Understanding this prevents the most common dispute: a tenant who assumes IWK is their bill, and a landlord who assumes the tenant will pay it without a clause in the agreement.
How much is the IWK bill, and how often does it arrive?
IWK bills every 6 months (bi-annually), not monthly. From 1 January 2026 the standard domestic sewerage rate is RM15/month — so a typical 6-month bill is RM90. In 2024–2025 the rate was RM12/month (RM72 per cycle). Many guides still cite the pre-2024 figure of RM8/month, which is outdated.
The single most common reason tenants and landlords argue over IWK is a billing expectation mismatch: IWK bills arrive every six months, and someone expecting a monthly statement is surprised by what looks like a large lump sum. Normalised to a monthly figure, the math is straightforward:
| Period | Monthly rate | Per 6-month bill |
|---|---|---|
| Pre-2024 (outdated — do not cite) | ~RM8/month | ~RM48 |
| 1 Jan 2024 – 31 Dec 2025 | RM12/month | RM72 |
| From 1 Jan 2026 | RM15/month | RM90 |
Low-cost houses or premises with Annual Value below RM600 pay RM4.09/month; village/estate dwellings pay RM5.12/month. These rates are set by the Water Services Industry (Sewerage Services Charges) Regulations 2022, Fifth Schedule, and confirmed by IWK's official domestic charges page.
Source: dim03 §4.1, §4.2; IWK Official; Last verified: 26 June 2026.
How does IWK billing work in a rental property?
IWK bills the property owner directly. The tenant is not a party to the IWK service account, so the provider looks to the landlord for payment — not to the tenant.
| Utility | Whose name is the account in | Who does the provider chase | How to handle it in a rental |
|---|---|---|---|
| TNB electricity | Can be transferred to tenant name (Change-of-Tenancy process) | Account holder — landlord or tenant depending on whose name | Transfer to tenant at move-in; record meter reading |
| Air Selangor / water | Can be transferred to tenant name | Account holder | Transfer to tenant at move-in via provider service centre |
| IWK sewerage | Property owner — does not routinely transfer to tenant | Property owner (landlord) | Landlord pays IWK; TA clause determines whether tenant reimburses |
| Internet/broadband | The subscriber — can be landlord or tenant | Subscriber | Agree in the TA who subscribes and who pays early-exit penalty |
This is not just a billing convention — it is a statutory position. Under Water Services Industry Act 2006, s.67(1), the owner, management corporation, or occupier of the premises is liable to pay sewerage charges. This differs from electricity, where the Electricity Supply Act 1990 framework places liability on the registered account holder (typically the tenant once a Change-of-Tenancy is completed). Different statutes, different outcomes — which is why a tenancy agreement clause and active monitoring are the landlord's only practical protection on IWK.
The practical implication for landlords: if the IWK bill goes unpaid — whether because the landlord forgot, because the tenant was meant to reimburse but did not, or because there is no clause in the tenancy agreement — the debt sits with the property owner, not with the outgoing tenant.
For tenants: IWK is not your direct bill. If your landlord asks you to reimburse IWK charges, check the TA. If there is no clause, you have no obligation to pay it. If there is a clause, pay and keep receipts.
For a full picture of how all utilities are handled in a Malaysian rental, read the managing utility bills guide for tenants and landlords.
What should the tenancy agreement say about IWK?
A clear TA clause should name IWK sewerage charges specifically, state who is responsible for the amount, and set out how reimbursement works if the landlord pays first.
Because IWK bills the owner, the most common landlord approach is one of three options:
- Absorb IWK into rent — the landlord prices the rental to cover IWK charges. The tenant pays no separate IWK amount. Simple and clean.
- Tenant reimburses landlord — the TA states that the tenant must reimburse IWK sewerage charges monthly or quarterly, on production of the bill. Keep receipts both ways.
- Landlord retains full IWK responsibility — the TA makes no IWK obligation on the tenant. The landlord simply manages this bill as a property cost.
A vague clause — or no clause — usually means the landlord absorbs IWK, because the account stays in the landlord's name and there is no statutory mechanism to shift liability to the tenant without a written agreement.
What about a vacant property — does IWK still charge?
Yes. If a property is unoccupied, IWK charges a minimum of 50% of the prevailing rate — but only if the owner gives proper written notice of the vacancy to IWK. Without written notice, the full rate applies even to a vacant property.
At the 2026 rate of RM15/month, the vacant minimum charge is RM7.50/month (RM45 per 6-month billing cycle). In 2024–2025, at RM12/month, the minimum was RM6/month (RM36 per cycle).
| Situation | Monthly charge |
|---|---|
| Property occupied — full rate (2026) | RM15/month |
| Property vacant, written notice given to IWK (2026) | RM7.50/month (50% minimum) |
| Property vacant, no written notice given | RM15/month (full rate applies) |
Landlords who leave a property empty between tenancies should send written notice to IWK to qualify for the reduced minimum. The basis is the Water Services Industry (Sewerage Services Charges) Regulations 2022, Fifth Schedule.
Source: dim03 §4.4; IWK Fifth Schedule Regulations 2022; Last verified: 26 June 2026.
What happens if IWK charges go unpaid in a rental?
If IWK charges are unpaid, the debt accumulates against the property owner. IWK may take enforcement action against the owner — the tenant has no direct IWK account and is not IWK's primary debtor.
A landlord cannot legally cut sewerage service, block access, or take self-help action against a tenant to recover IWK reimbursement that the tenant owes under the TA. The lawful route for recovering a TA debt from a tenant is civil court action, not utility disruption. Under the Specific Relief Act 1950 s.7(2), a landlord cannot lawfully recover possession or pressure a tenant by cutting utilities — that applies whether the utility is electricity, water, or sewerage.
If the TA included a reimbursement clause and the tenant has not paid, document the outstanding amount, send a written demand, and if needed pursue it as a civil debt. Do not let IWK charges accumulate silently — an unpaid IWK account can affect future property dealings.
For landlords managing this risk across multiple properties, read the landlord's guide to preventing unpaid utility bills and the advice on whether a landlord can cut electricity or water.
The SPEEDHOME angle — utility clarity built into the tenancy
SPEEDHOME's managed tenancy framework includes a standard tenancy agreement that covers utility responsibility, including IWK. The landlord does not need to draft a bespoke clause from scratch.
On SPEEDHOME, the tenancy agreement template addresses who handles which utility — so the IWK question is answered before the tenancy starts, not discovered during a dispute. The rental security deposit is separate from IWK charges. If the tenant leaves without reimbursing outstanding IWK amounts covered by the TA, the deduction must be tied to a provable, quantified loss — not a blanket holdback. For the wider set of utility bills beyond IWK — TNB, water, and how to split them fairly — see managing utility bills as a tenant or landlord.
Zero Deposit is a managed rental-risk system, not a financial guarantee product. It replaces the upfront cash deposit; in the rare case of severe end-of-tenancy damage the recoverable amount can be limited, so it is not a blanket guarantee. Utility reimbursement disputes — including IWK — are handled through the normal TA and, if needed, civil channels.
Browse rental homes on SPEEDHOME to find listings where the utility and tenancy framework is already in place.
FAQ
Does the tenant pay Indah Water in a Malaysian rental?
Not directly. IWK bills the property owner. The tenant may be required to reimburse the landlord under a TA clause, but the IWK account stays in the owner's name. Without a clear clause, the landlord is liable for the bill.
Can the IWK account be transferred to the tenant's name?
IWK does not offer a routine residential change-of-tenancy account transfer the way TNB does. The sewerage account follows the property owner. If you need confirmation of IWK's current process, contact IWK directly at iwk.com.my — do not rely on undated guides.
Can a landlord use the deposit to cover unpaid IWK charges?
Only if the tenancy agreement includes a clause requiring the tenant to reimburse IWK charges and the tenant has not done so. Any deposit deduction must be tied to a proven, documented shortfall — not an assumed entitlement.
Can a landlord cut sewerage if the tenant refuses to pay IWK reimbursement?
No. Cutting utilities as a pressure tactic is not a lawful remedy. A landlord cannot lawfully evict or pressure a tenant by self-help (changing locks, removing doors, or cutting utilities) under the Specific Relief Act 1950 s.7(2). Recover unpaid TA debts through the civil courts.
What is the IWK sewerage charge rate?
The standard domestic sewerage rate from 1 January 2026 is RM15/month (RM90 per 6-month billing cycle). In 2024–2025 it was RM12/month (RM72 per cycle). The pre-2024 figure of RM8/month cited in many older guides is outdated. Low-cost houses (Annual Value below RM600) pay RM4.09/month; village/estate dwellings pay RM5.12/month. Source: IWK Official; dim03 §4.1; Last verified: 26 June 2026.
Does a vacant property still get an IWK bill?
Yes. For a vacant property, IWK charges a minimum of 50% of the prevailing rate — provided the owner gives written notice of vacancy to IWK. At the 2026 rate of RM15/month, this means RM7.50/month (RM45 per 6-month cycle). If no written notice is given, the full rate applies. Source: IWK Fifth Schedule Regulations 2022; dim03 §4.4; Last verified: 26 June 2026.
Can I pay IWK via JomPAY or get an e-bill instead of a paper bill?
IWK does offer online and e-billing payment options, but since the account stays in the property owner's name, it is the landlord — not the tenant — who registers for and manages that payment channel. IWK's own site (iwk.com.my) is the only reliable place to confirm current payment methods and e-billing/e-statement sign-up, since portals and bill-payment apps change their supported billers over time. If a landlord wants a tenant to reimburse IWK charges under a TA clause, agreeing on e-bill access or forwarding each statement is simpler than waiting for the physical 6-month bill to arrive.
Why does the IWK bill seem so large?
IWK bills every 6 months, not monthly. At RM15/month from 2026, a standard 6-month bill is RM90. The billing frequency — not an error — is the reason a "large" amount arrives twice a year. If you see a guide citing RM8/month or a total of RM48/cycle, those figures are pre-2024 and no longer apply.