Sublease forms are official legal documents used to formalize sublease arrangements. The specific information included in sublease forms may vary, but generally a sublease will specify the start date and end date of the sublease, as well as how much monthly rent the subtenant must pay and who it should be paid to. Sublease forms may also include information regarding who is responsible for paying utility costs and other costs associated with the subleased property. Details regarding the amount of any security deposit may also be included. Sublease forms are usually attached to a tenant's original lease, and both leases then collectively apply as a rental contract. Sublease forms can be obtained from office supply stores or downloaded from Internet websites. In some cases, a landlord may provide their own sublease form, and in other cases a landlord may leave it up to the tenants to obtain the proper forms.