OneStep Accounting Standard Edition 4.0 is an integrated accounting system. Modules include general ledger, sales processing (sales invoice, credit memo, and cash sales), purchase processing (purchase invoice, debit memo, and cash purchase), cash management, inventory management, and report designer. It features customizable document formats.

New features in version 4 include item categorization for management reporting, an enhanced report designing tool, and more than 100 new reports. Free licence keys can be obtained by registering at publisher's website.