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GST amounts are automatically calculated for General, Sales, and Purchase. These can be manually adjusted in Microsoft Dynamics 365 Business Central.  For example a manual GST adjustment maybe required when an invoice received from a vendor does not match to the GST amount calculated in Business Central.

The GST Difference can be activated in Journals, Sales, and Purchase transactions, and an amount threshold for the difference can be set. Let’s see how it’s done.

Step 1:

The amount threshold can be set in the MaxGST Difference Allowed in the General Ledger Setup.  Search using the button and select General Ledger Setup.  For this example, we will set the Max. GST Difference Allowed as 5.

Note: You may need to select Show More to show this field under the General group.

General Ledger setup for GST difference allowed

Step 2:

To enable the GST Difference, search and open Purchases & Payable Setup and put a check mark in the Allow GST Difference.

Allow GST Difference can also be found in the Sales & Receive Setup and General Journal Batches to enable the functionality in Sales and Journals respectively. 

STEP 3:

Once all the setups have been configured, users can enter a transaction and manually change the GST amount.  To do this, create a Purchase Invoice and go to Related > Invoice > Statistics then manually modify the GST Amount.  In the screenshot below, the GST Amount has been modified to 98.

Note: BC will display an error if the GST Amount that has been set is more than the maximum GST Difference Allowed.

STEP 4:

In this instance a Purchase Invoice has been posted. To see the GST Entries that have been recorded, on the Posted Purchase Invoice, go to Invoice > Find Entries > GST Entry > Show Related Entries and view the related GST Entries.

General Ledger setup for GST difference allowed

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