Most online payment applications relate to buying something off the Internet so sometimes we tend to forget purchase and sale is not the only payment-related transaction. One of the most common payment transactions is the salary, which is a periodic payment paid by the employer to an employee and specified in an employment contract.

Another form of payment particularly common in the corporate world is the expenses claim. Expenses claims are claims for reimbursement of expenses incurred during the course of an employee's duties. Claim reimbursement payments are also paid periodically.

This mashup describes how an online payment system like PayPal can be used for these payment types and how a typical expense claims process can be automated through Google Docs and Spreadsheets and integrated into the payment process.