To bid on a Professional Services contract, you must register with eContract Philly. To register, you'll need: Your tax ID number.Download Pennsylvania Independent Contractor Agreement template, modify and send for signing using BoloForms Signature. Payment – Payment terms are essential to forming a complete agreement. The contract should specify the payment amount, schedule, and any contingencies (e.g. Construction Invoice – For a contractor to request payment from their client for services rendered. Download: PDF, MS Word, OpenDocument. eForms. Once the work is complete, Subcontractor may receive the balance of the payment specified above, less any expenses Contractor incurred to complete the work. B. Contractor will pay all expenses associated with the performance of his duties under this Agreement including, without limitation, applicable taxes. Create a legally-binding subcontractor agreement for Pennsylvania using our attorney-drafted template that lets you customize your contract.