A method of modifying an original transaction document of a computerized accounting system that includes a general ledger having original transaction postings corresponding to transactions contained in the original transaction document, a new transaction document is generated in response to a command to edit the original transaction document. Next, the new transaction document is modified and saved as a modified new transaction document. The original transaction postings in the general ledger are then nullified. Finally, transactions of the modified new transaction document are posted in the general ledger.