It is the acronym used to represent “Digital Tax Bookkeeping”, which is a digital file composed of several bookkeeping records of tax documents and other information of interest to the tax authorities. It is also composed of records containing the calculation of taxes related to the operations and services performed by taxpayers that should be generated for the EFD. The EFD aims to facilitate the work of the Internal Revenue Service to better organize and streamline to the information related to the collection of taxes, especially ICMS and IPI. Digital Tax Bookkeeping is one of the parts of the tripod that make up SPED – the other two are Digital Accounting Bookkeeping (ECD) and Electronic Invoice (NF-e).