How to calculate the late fee for property fees?

(1) Whether to collect the late payment fee for property fees depends on the stipulations of the property service contract. If the contract contains the clause of collecting late fees, the property company can collect late fees according to the proportion agreed in the contract. The specific levy amount is different according to the requirements of each property company, and it is necessary to refer to the signed property service contract. If there is an agreement in the contract, it shall be implemented according to the contract, which is generally three thousandths. If there is no agreement, it can be calculated according to the bank's interest for the same period.

(II) Calculation formula of overdue fine for property fees: 50 yuan should be paid this month, but the owner delays to pay 14 months, then the daily 5% penalty is calculated as 50 yuan ×5%=2.5 yuan/2.5 yuan ×30 (30 days per month) × 1050 yuan, but there is one problem that must be clarified. That is to say, is the liquidated damages for the property company's inadequate service agreed in the property service contract equal to the liquidated damages for the owner's delayed payment of property fees? That is to say, if the property company's services are not in place, is it also agreed to compensate the owner for the liquidated damages at a daily rate of 5%? If the property service contract only stipulates the liquidated damages for the owner's late payment of property fees, but there is no stipulation on the liquidated damages for the property company's poor service (this situation is common in previous property service contracts), or the proportion of liquidated damages for the owner's late payment of property fees is obviously higher than that of the property company's poor service, resulting in unequal compensation amounts between the two parties, which violates the basic principles of contract law.