Compensation from Sources within Pennsylvania
If services are performed within Pennsylvania, the compensation for the services constitutes income from Pennsylvania sources, regardless of the following:
Whether the services were performed as an employee;
Whether the compensation is received in a taxable year after the year in which the services were performed; and/or
Whether the compensation is received by someone other than the person who performed the services.
Some items of compensation may be based upon services relating to a single transaction or piece of work while other items may be based upon multiple transactions or piecework. Some may be based upon services of a continuing nature or services that are frequently recurring; and some constitutes prepaid income. Accordingly, different rules for allocating income to Pennsylvania sources may apply. They are explained below.