The exact figure is specified in the lease but can change during the lease term. At such, there would be a clause in the agreement allowing Landlord to recover from tenant any increase of the service charge.
Property Tax
Landlord is responsible to pay property tax. Presently, 10% of the annual assessed value is taxable and payable half yearly in advance.
There is usually a provision in the tenancy agreement to allow landlord to recover from tenant any increase in property tax attributable to the premises, which may be levied by Inland Revenue Authority of Singapore during the lease term.