A system for creating and editing mark up language forms and documents in a manner that is user friendly. The system dynamically generates a user interface that is customized to the particular form or document selected by the user. The user then enters information into the plurality of fields in the user interface for the form or document. Once the form or document is completed, the user can save the form or document in a document repository. The user can also transmit the form or document as an electronic filing document. Additionally, the data entry fields of the form or document can automatically expand or contract to accommodate data of varying length. Moreover, the user can create templates that include frequently used data.