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Dues Late-Payment Interest Calculation

Enter the due date and cut-off date — see the current balance in seconds under Condominium Law Art. 20 (5% monthly late-payment interest).

Calculation

Results update instantly as any field changes.

%

This calculation is informational. Under KMK Art. 20, 5% per month applies unless the management plan or unit owners' assembly resolution sets a different rate. Interest accrues daily for the days the debt is unpaid.

Total balance
₺0,00
Delay period 0 days
Late-payment interest ₺0,00
Daily rate %0,000

How is dues late-payment interest calculated?

It is commonly called "late-payment interest," but the correct legal term is late-payment penalty. Condominium Law Art. 20 provides for a 5% monthly penalty for a unit owner who fails to pay their share of expenses and advances (dues) on time, for the days of delay.

This rate is not absolute: the management plan or the unit owners' assembly may set a different one. If they don't, the statutory 5% applies.

FORMULA
Daily compensation = (Amount × Rate ÷ 100) ÷ 30
Compensation = Daily compensation × Days overdue
Total debt = Amount + Compensation

Example

Dues balance₺1.500,00
Delay45 days
Monthly rate%5
Daily interest₺2,50
Total balance₺1.612,50

1,500 × 5 ÷ 100 = 75 ₺/month → 75 ÷ 30 = 2.50 ₺/day → 2.50 × 45 = 112.50 ₺ compensation.

Frequently asked questions

Is the late-payment rate always 5% in every complex?
No. 5% is the statutory default. If the management plan or unit owners' assembly resolution defines a different rate, enter that.
When does the interest start to accrue?
From the due date on which the dues should have been paid. The due date is usually set in the management plan; otherwise, the first of the month is assumed.
Late "interest" or "penalty"?
The legal term is "late-payment penalty" (KMK Art. 20). In practice most people say "late interest"; the calculation is the same.
Is this calculation legally binding?
The tool is for information only. For the final amount in enforcement or litigation, rely on your management plan and expert legal advice.
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