§ 80

If the landlord, due to an excusable error, has not included an expense item in the consumption account, the landlord may transfer the portion of the item that does not exceed 10% of the total expenses in the first completed account to the following consumption account. The landlord must inform the tenants of the amount transferred.

Stk. 2.In the event of an erroneous allocation of expenses among the tenants, the landlord must promptly correct the error by written notice to the affected tenants. Regarding additional payments and refunds resulting from the correction, § 78 and § 79, apply correspondingly.