My tenant is running a crypto rig — can I be held liable for a RM5,000 TNB bill?
SPEEDHOME Editorial Team · Updated June 2026 · Source-checked against TNB account responsibility and landlord/tenant operating practice.
A crypto-mining tenant is not just a high-usage tenant. For a landlord, the risk is abnormal electricity consumption, possible misuse of the premises, possible electrical safety changes, and a bill that may still sit under your name if the TNB account was never transferred. The correct response is evidence first, not panic and not self-help disconnection.
Quick answer
| Question | Practical answer |
|---|---|
| Can the landlord be stuck with the TNB bill? | Yes, if the TNB account remains under the landlord’s name. Supplier liability normally follows the registered account holder. |
| Does crypto mining automatically make the tenant liable to TNB? | Not automatically from the landlord’s side. You still need account-name evidence, tenancy terms, usage records and breach documentation. |
| Can the landlord cut electricity? | Do not use utility cutoff as pressure. Treat it as breach/recovery, not self-help eviction. |
| What should have been done before move-in? | Use Change of Tenancy where appropriate, record the meter reading and make utility responsibility explicit in the tenancy agreement. |
Why crypto mining changes the risk profile
Mining equipment can run for long hours and create a sudden jump in electricity usage. It may also involve extra wiring, heat, noise or commercial-style use of a residential unit. The landlord’s strongest position is not “I think he mined crypto”. It is a file showing the account name, the before-and-after meter readings, the unusual usage pattern, photos or inspection evidence, and the tenancy clauses breached.
First 24-hour checklist
- Download recent TNB bills and note the account holder.
- Photograph the meter and any visible equipment or electrical alteration, if you have lawful access.
- Compare usage before tenancy, during normal months and during the suspected mining period.
- Check the tenancy agreement for residential use, illegal use, nuisance, electrical alteration and utility clauses.
- Ask for an explanation in writing and keep the conversation factual.
- Escalate through notice, inspection and recovery routes instead of switching off supply.
How to recover the bill
If the account is in the tenant’s name, your main job is to preserve tenancy evidence and handover records. If the account is in your name, you may need to protect the account first, then recover from the tenant using the bills, meter readings, tenancy clauses and deposit reconciliation. A claim is stronger when the amount is itemised and tied to the tenancy period.
What to put in the next tenancy agreement
- Utilities must be paid on time and evidence of payment must be provided on request.
- The property is for residential use unless written approval is given.
- No high-load equipment, commercial operation, rewiring or electrical modification without written consent.
- Final meter readings and final bills must be settled before handover is closed.
Prevention is cheaper than recovery
TNB’s Change of Tenancy process exists for exactly this type of landlord risk: the account should sit with the person responsible for day-to-day consumption. Pair that with move-in photos, meter readings and a clear TA. Once the bill has already exploded, you are no longer doing prevention; you are doing evidence recovery.
Bottom line: if crypto mining caused the bill but the account is under your name, handle the account exposure first and recover from the tenant with documents. For the next tenancy, fix account responsibility before handing over the keys.
