Taxes and posting groups are the most critical setup area.
Setup Business Central Tax can create a base structure:
VAT business posting group
VAT0, VAT7, and VAT19
VAT posting matrix
General posting groups and shipping G/L account
Only run this in empty or intentionally prepared test tenants. Existing general ledger must be reviewed by the responsible parties.
Magento tax classes and rates are mapped to BC product posting groups. Review each Magento class from a business perspective.
VAT Business Posting Group
Gen. Bus. Posting Group
Gen. Prod. Posting Group
Shipping Cost G/L No.
VAT Difference Percent
VAT Tolerance %
The flags Prices Including Tax, Calculate Tax When Create Sales Order, and Calculate Tax on Shipping Cost affect lines and shipping costs.
Verify net/gross, multiple tax rates, shipping, discount, rounding, EU/international, and credit memos.
