How to collect rent on M-Pesa without manual reconciliation

If you collect rent on M-Pesa, you know how month-end goes. SMS alerts pile up. Some say "House 4", some say "Mama Wanjiku", some say nothing. You open the M-Pesa statement, a notebook and a spreadsheet, and spend hours working out who paid what.

This guide shows how to collect rent on M-Pesa in a way that sorts itself out. Most of the work is in two places: how you set up your Paybill, and how you design the account numbers tenants type in. Get those right and software can match most payments for you.

Why manual reconciliation goes wrong

Reconciliation means checking that money received matches money owed, tenant by tenant. Done by hand, it fails for a few common reasons:

• Tenants pay to a personal number with Send Money, so there is no reference at all.
• Tenants type the account number in different ways each month.
• A relative or employer pays from a phone number you do not know.
• One tenant pays in two or three parts.
• Two units have similar names, so payments land on the wrong one.

Each of these turns into a phone call, a WhatsApp message or a wrong arrears figure. The fix is to remove the guessing.

Step 1: Use a Paybill, not a personal number or a Till

There are three common ways tenants pay rent on M-Pesa:

Method	Account number field?	Good for rent?
Send Money to a personal line	No	Poor - no reference, mixes with personal money
Till number (Buy Goods)	No	Weak - you still have to guess who paid
Paybill	Yes	Best - tenant types a reference you choose

A Paybill is a business number where the payer enters two things: the business number and an account number. That account number is what makes automatic matching possible.

You can get a Paybill directly from Safaricom, or use one linked to your bank account, where the bank gives you its Paybill and you use an account format it allows. Ask Safaricom or your bank what documents they need and what charges apply, as these can change.

Tips:

• Use one Paybill per business, not per building. Account numbers do the sorting.
• Keep rent money separate from your personal M-Pesa. It makes records cleaner and disputes easier.
• If you are an agency, decide early whether money goes into your account or each landlord's account. This affects how you report to landlords.

Step 2: Design account numbers tenants get right

This is the step most landlords skip, and it causes most of the mess. A good account number is:

• Unique - no two units or tenants share it.
• Short - easy to type on a phone.
• Stable - the tenant uses the same one every month.
• Clear - no characters that look alike.

Pick a simple pattern

A common pattern is a short property code plus the unit. For example:

• GV12 - Green View, unit 12
• GVB4 - Green View, Block B, unit 4
• MK07 - Mkubwa Court, unit 7

Stick to letters and numbers only. Avoid spaces, hyphens and slashes, because tenants will leave them out or add them in different places.

Avoid look-alike characters

People confuse these all the time:

• O (letter) and 0 (zero)
• I (letter), l (small L) and 1 (one)
• S and 5, B and 8

If you can, leave the letters O and I out of your codes completely. Use leading zeros the same way every time (always 07, never sometimes 7).

Unit-based or tenant-based?

You have two options:

• Unit-based (GV12): easy to remember and print on the door or lease. When a tenant leaves, the next tenant uses the same number, so your system must link the unit to whoever's lease is active.
• Tenant-based (a unique code per tenant): history never mixes between old and new tenants, but codes are harder to remember.

For most landlords, unit-based works best, as long as your records show who was renting the unit on each date. Good property software handles this for you.

Tell tenants clearly and often

• Put the Paybill and account number in the lease.
• Print it on the rent invoice or reminder SMS each month.
• Put a small sticker inside each unit.
• Say plainly: "Do not use Send Money. Payments without the correct account number may not show on your account."

Step 3: Turn on automatic matching

Once payments come in through a Paybill with a clean account number, a system can match them without you.

Here is how it works:

1. The tenant pays to your Paybill and types GV12.
2. Safaricom sends a payment notification to your property software. This is done through Safaricom's developer service, known as Daraja (an API, which is a way for two systems to talk to each other automatically).
3. The notification includes the transaction code, amount, phone number, time and account number.
4. The software finds unit GV12, sees who the current tenant is, and records the payment against what they owe.
5. The tenant gets a receipt by SMS. Your arrears report updates on its own.

No statement download. No spreadsheet. No guessing.

How payments get applied

Set clear rules so the system treats everyone the same:

• Oldest debt first. A payment clears old arrears before the current month. This keeps arrears figures honest.
• Partial payments. If rent is KES 8,500 and the tenant pays KES 5,000, the balance of KES 3,500 stays as arrears. (For context, KES 8,500 was the median bedsitter rent on ISHI Homes as of 25 Oct 2026.)
• Overpayments. Extra money is kept as a credit and used against next month.
• Other charges. Decide whether water, service charge or penalties are paid before or after rent, and write it in the lease.
• No double counting. Every M-Pesa transaction code is unique, so the system should reject the same code twice.

Step 4: Handle the payments that do not match

Even with a good setup, a few payments will come in with a wrong or missing account number. Do not let them disappear.

A good system will:

• Try the phone number. If GV21 does not exist but the phone number belongs to the tenant in GV12, it suggests that match.
• Spot near-misses. GVl2 or GV 12 is almost certainly GV12. The system can flag it for a quick yes or no.
• Put the rest in an "unmatched" list. You see each one with the amount, phone and time, and assign it in one tap.
• Learn. Once you confirm that a phone number belongs to a tenant (for example a parent who pays), future payments from it can match automatically.

Your job shrinks from checking every payment to checking a short list of exceptions, often just a handful a month.

Step 5: Do a quick check, not a full reconciliation

Automation does not mean you never look. It means you look less. Once a week or at month-end:

• Compare the total received in your software with the total on your M-Pesa or bank statement for the same dates.
• Clear the unmatched list.
• Review tenants with arrears and send reminders.

If the totals agree and the unmatched list is empty, you are done. That is a few minutes, not a whole weekend.

A simple setup checklist

• One Paybill for rent, separate from personal money
• A short, unique account number for every unit
• No spaces, symbols or look-alike letters in codes
• Paybill and account number in the lease, invoices and reminders
• Software connected to receive payment notifications automatically
• Written rules for partial payments, overpayments and other charges
• A weekly look at totals and unmatched payments

A note on tenant data

M-Pesa notifications include tenants' names and phone numbers. That is personal information. Only share it with people who need it, keep it in a secure system, and tell tenants how you use it. Ask your adviser what Kenya's data protection rules require of your business.

See ISHI in action

ISHI is property management software built for Kenyan landlords and agencies. It connects to your M-Pesa Paybill, matches rent to the right unit automatically, sends receipts, and keeps arrears up to date, so you only deal with the few payments that need a human.

Want to see it with your own properties? Book a free demo at www.ishi.digital/contact, call 0116888777, or email hello@ishi.digital.