Billing tenants for water: meter readings without the arguments

Updated 7 November 2026

Decide your rate and tell tenants up front

Put the rate per unit and any standing charge in the tenancy agreement or listing. If your water company changes its tariff, tell tenants before the month you apply the new rate, not after.

Read every meter on the same days each month

Pick a short window before the invoice it goes on is due and read every meter in it. Readings taken on the same days are comparable month to month, and tenants learn when to expect the charge. A photo of each meter settles most disputes before they start.

Work out the charge the same way every time

• Units used = this reading − the previous reading.
• Charge = units used × rate per unit, plus any standing charge.
• A reading lower than the last one is a mistake or a replaced meter — check it before billing.
• Usage far above the tenant's normal is worth a look for a leak before the bill goes out.

Put it on the rent invoice

Add the water charge as a line on the tenant's rent invoice, showing the two readings and the units used. One total, one due date, one reminder. Tenants pay what they can see and understand.

Handle move-ins and move-outs

Record the meter reading on move-in day as the new tenant's starting point, so they never pay for water used before they arrived or while the unit stood empty. On move-out, take a final reading and bill it on the last invoice or settle it from the deposit.

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Common questions

How do I work out a tenant's water bill from the meter?

Subtract last month's reading from this month's to get the units used, multiply by your rate per unit, then add any fixed standing charge. For example, 1,248 − 1,236 = 12 units; at KES 150 a unit that is KES 1,800, plus a KES 100 standing charge is KES 1,900.

Should water go on the same invoice as rent?

Yes. One invoice with one total is easier for tenants to pay and for you to chase. A separate water bill is the one that gets forgotten.

When should meters be read?

On the same few days every month, shortly before the invoice it goes on is due — so the tenant sees the charge with time to pay it alongside their rent. Once a month's readings are billed, lock them so they can't be changed after the tenant has seen them.

What about a tenant who moves in or out mid-month?

Take a reading on the day they move in — that is their starting point — and a final reading when they move out, billed on their last invoice or against their deposit.