Does the rent include property fees?

According to the usual or standard rental contract, the rent includes the property fee, but some landlords or intermediaries tell the tenants to pay the property fee separately when signing the contract in order to set an attractive rent price. From the perspective of tax avoidance, because the landlord needs to pay taxes according to the amount of the rental agreement, it is good for the landlord to write down the amount of the rental agreement, that is, don't write down the amount of the property fee in the agreement, just indicate that the tenant needs to pay the property fee separately, but you can pay.