Tenant & Sub-Meter Electricity Bill Splitter 2026 – Fair Discom Bill Sharing
Fair, dispute-free electricity bill calculation for landlords and tenants. Calculate bills using legally sound proportional blended slab rates or agreed flat charges with instant WhatsApp receipt.
1. Primary DISCOM Electricity Bill Details
2. Tenant Sub-Meter Readings & Room Cards
3. Building Summary & Common Area Metering
How to Use the Tenant & Sub-Meter Electricity Bill Splitter
Enter Main DISCOM Bill Amount & Units
Enter the official net bill amount (₹) and total monthly units recorded on the primary electricity meter.
Add Tenants or Rooms
Click "+ Add Another Tenant" and specify room names (e.g. Room 101, Room 102).
Input Previous & Current Sub-Meter Readings
Input previous and current meter digits to automatically deduct units consumed per room.
Generate WhatsApp Shareable Receipt
Instantly copy or send a formatted WhatsApp message and printable rent-split slip to each tenant.
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Tenant & Sub-Meter Billing Science: The Proportional Fair Sharing Law
In multi-tenant rented homes and commercial apartments across India, electricity billing frequently leads to severe disputes. Landlords often arbitrarily demand flat charges of ₹10 to ₹14 per unit without accounting for government lifeline subsidies, slab tiers, or common area meters. Under the Electricity Act 2003 (Section 12), landlords are consumer-distributors, not licensed electricity resellers, and cannot legally earn commercial profit on domestic utility power. This guide establishes two legally defensible, mathematically exact billing frameworks.
Averages high slab tariffs and low lifeline subsidies proportionally among everyone based on their actual consumption.
Units are measured from sub-meter: Current Reading minus Previous Reading, multiplied by the building's blended rate.
Accounts for water pump motors, staircase and corridor lights, parking sensors, or owner's personal floor consumption.
Comparison: Proportional Fair Sharing vs Arbitrary Flat Rate Exploitation
| Billing Method | How It Works | Tenant Consuming 120u | Landlord Fairness | Legal Standing |
|---|---|---|---|---|
| Proportional Fair Share (Recommended) | Total DISCOM Bill ÷ Total Main Units gives blended rate applied to sub-meters | ₹600.00 (@ ₹5.00/u) | 100% of bill recovered without deficit | 100% Legal |
| Agreed Flat Rate + Fixed Share | Written agreement rate (e.g. ₹7.50/u) + equal division of fixed meter rent | ₹950.00 (120×7.5 + ₹50 fixed) | Predictable rate, protects from slab surges | Contractual |
| Arbitrary Flat ₹12/u Mark-up | Landlord imposes inflated rate to profit off residential connection | ₹1,440.00 (Overcharged +₹840) | Unfair profiteering from tenants | Illegal Resale |
Sub-Meter Calibration & ISI Digital Standard
Never use outdated mechanical rotating-disc meters for sub-tenants. Mechanical meters develop friction over time and can under-read or over-read by up to 25%. Always install ISI-certified digital LCD static energy meters (Class 1.0 accuracy) for each tenant room to prevent meter calibration disputes.
Instant WhatsApp Record & Printable Audit Slip
Always share verifiable digital receipts. By clicking the green WhatsApp button on this calculator, both the landlord and tenant receive an immutable timestamped message detailing previous reading, current reading, blended rate, and total payable amount, establishing complete trust.