Announcement about Tax Updates Dependent on Cumulative Updates (CU) in Microsoft Dynamics NAV

This announcement describes upcoming changes around processes related to Tax Updates released for Microsoft Dynamics NAV.

1. Tax Updates to be Built with Cumulative Update as a Baseline

Effective July 15, 2014, all Tax Updates (commonly referred to as Regulatory Features) will be developed based on the latest Cumulative Updates as their baseline instead of the current practice of basing the same on an RTM release.

This move will provide an improvement in quality, because a Tax Update is built on the latest baseline and state of code compared to the previous process of building on an older RTM version.

This new process also now ensures that partners will have all Application level hotfixes in place. These were not included previously when a Tax Update was delivered, which meant that partners had to merge the hotfixes again while deploying the Tax Update.

Example Scenario

Version: Microsoft Dynamics NAV 2013/Country X

Cumulative Updates Released 


Release Date

Microsoft Dynamics NAV 2013 RTM Country X

September 2012

CU 12

March 2014

CU 13

April 2014

CU 14

May 2014

CU 15

June 2014


Tax Updates Released 

Tax Update

Release Date

Tax Update 1

March 2013

Tax Update 2

April 2014

Tax Update 3

Developed and released in July 2014


Current Model

Tax Update 3 for Country X on Microsoft Dynamics NAV 2013 is developed using the following baseline or has the following prerequisites for installation:

  • Microsoft Dynamics NAV 2013 RTM X     +
    • Tax Update 1 + 
      • Tax Update 2

New Model

Tax Update 3 for Country X on Microsoft Dynamics NAV 2013 is developed and has only the following prerequisite:

  • Microsoft Dynamics NAV 2013 CU 15

2. Tax Updates to be Released Only Through Cumulative Updates

Effective October 1, 2014, all Tax Updates for Microsoft Dynamics NAV will be developed on CU as described in section 1 of this announcement and will be released only through Cumulative Updates. Microsoft Dynamics NAV
will no longer release individual .fob or text files for a Tax Update.

Partners now benefit by having all regulatory features in sync with the latest application code, a single and one stop quality solution from Microsoft.


A. Applicable for all Microsoft Supported Countries where Cumulative Updates exist.

B. Applicable for versions Microsoft Dynamics NAV 2013 and higher.

Related Information


The Microsoft Dynamics NAV team