Data processing system in petty cash in PT. Doulton where petty cash financial system owned by PT. Doulton still using Microsoft Excel in the manual data processing. Neither of input expenses, petty cash receipts, as well as its use has not had the system up with statements that often cause problems. So this is an obstacle in finding data. This encourages technological advancement PT.DOULTON to exploit in order to know that money out as well as its use and needs as well as their respective number. a corporation all of the activities carried out can not be separated from the cash receipts and disbursements, one of which is petty cash turnover highest so easily diverted and transferable even if it amounted to a relatively small, but if such transactions are common and if the collected amount will be material, and often there is a problem of delay in the report. The purpose of this research is to design a small cash information system that can provide fast, timely and accurate. Step application development begins with a needs analysis system that analyzes the input, process and output, then the system design in the form of system design implemented into the programming language PHP (Hypertext Preprocessor), XAMPP for Windows Version 3.2.1, the MySQL software, tools YiiFramework, and testing methods used blackbox testing. From the research that has been done, it produced a software system design information petty cash. Information generated from this system so that no delays in providing reports and data search easier. Keywords: Small Cash, Revenue, Expenditure