Automating Apartment Installment Payments for Developers

What automating installments means

For a developer selling apartments on installment, every contract is its own payment schedule running months or years ahead. With a handful of contracts, Excel works. With hundreds, errors start: missed reminders, mismatches between sales and accounting, manual penalty recalculations and buyers calling to ask how much they still owe.

Automation fixes this with a single source of contract data, from which schedules, reminders, charges and reports are built. Staff handle exceptions instead of routine.

A payment schedule per contract

The schedule is generated from the contract terms at signing:

• apartment price and down payment;
• installment term and frequency (monthly, quarterly, custom);
• structure: equal payments, increasing payments, payments tied to construction stages;
• due dates and rules for shifting to a business day;
• currency and conversion rules, if the contract provides for them.

Make sure to support schedule changes: early repayment, restructuring, payment deferral by addendum. Every change is saved as a new schedule version with history, which matters in disputes.

Reminders to buyers

Reminders are the simplest part and have a visible effect on payment discipline. A typical flow:

1. A few days before the due date — a reminder with the amount and a payment link.
2. On the due date — a repeat if payment has not arrived.
3. After the due date — a notice of the debt and the penalty charged.
4. For long delays — a task for a manager to call.

Channels: SMS, a Telegram bot, mobile app push, email. Have lawyers review the texts, especially around penalties.

Online payment

The easier it is to pay, the fewer overdue payments. Options:

• A payment link in the reminder — the buyer pays by card without logging in anywhere.
• Payment in the buyer cabinet or bot.
• A bank transfer with a unique payment reference for automatic identification.

The key task is to match each payment to a contract automatically. For online payments this uses the order number; for transfers, the payment reference from the bank statement. Unidentified payments go to a separate queue for manual allocation.

Overdue penalties

Penalties follow the contract strictly, so the rules need to be formalized:

• from which day charging starts;
• the base: the overdue amount or the entire remaining balance;
• rate and charging period;
• a cap on the total, if any;
• allocation order: penalty first or principal first.

The system charges penalties daily or on a schedule, but a responsible employee must be able to waive or adjust them with a stated reason.

CRM and 1C sync

Usually sales work in a CRM while money is accounted for in 1C. To keep data consistent, agree on which system is the master for each data type:

Exchange is best done on events (new contract, new payment) plus a regular reconciliation that catches mismatches. Log every exchange operation.

The buyer cabinet

A cabinet removes most calls to the sales office. The buyer sees:

• their contract and apartment;
• the current schedule and the status of each payment;
• remaining balance and penalties charged;
• a pay button;
• payment history and receipts;
• documents and construction progress updates.

The cabinet can be a web page, a mobile app or a Telegram bot — what matters is that its data matches the CRM and 1C.

Rollout order

1. Describe all schedule types and penalty rules from existing contracts.
2. Migrate active contracts and reconcile balances with accounting.
3. Launch schedule calculation and reminders.
4. Connect online payment and automatic allocation.
5. Open the buyer cabinet.

Common mistakes

• Migrating contracts without reconciliation — the buyer sees the wrong amount in the cabinet and trust drops.
• Penalties that cannot be adjusted — disputed cases turn into conflicts.
• Two master systems — the CRM and 1C overwrite each other's data.