U.S. Sales Tax setup for Business Central
- Nov 9, 2018
- 2 min read
- Tax Posting Setup : Tax Business Posting Groups and Tax Product Posting Groups - Tax Calculation is based on: Tax Groups, Tax Areas (with Tax Jurisdictions) and, Tax Details (which are the %’s attached to the Tax Jurisdictions) - Assigning Tax Codes to Customers and Items
Tax Posting Setup
Tax Posting Setup is combo of Tax Business Posting Groups and Tax Product Posting Groups.
Each combination specifies the Sales Tax Liability (G/L) account tied to that combo.
Tax Business Posting Groups and Tax Product Posting Groups are just simple lists.
Don’t need to enter a Tax% in Tax Posting Setup, because that is done with Tax Areas, Tax Groups, and Tax Details



Tax Calculation
Tax Areas
Tax Areas are simple lists of geographical areas, including a Non-Taxable entry.
Each Tax Area may contain more than one jurisdiction (e.g.: State, County, City, etc)


Tax Groups
Tax Groups are simple lists, such as NON-TAXABLE and TAXABLE
Tax Groups have Tax Detail line called Tax Jurisdictions. Each Tax Jurisdiction in the list contains a specific % for the legal tax, based on the Tax Jurisdiction Code.
In the example below the State of Florida applies a 6% Sales Tax. Pinellas County 1%. City of Clearwater 0%.

Tax Details
Tax Details is where the Sales Tax rates are entered for the combination of Tax Jurisdiction Code and Tax Group Code
Notice there are 2 Tax Groups, so the Tax Jurisdictions appear twice, once for each Tax Group Code.
A zero percent Tax Group Code (NON-TAXABLE) is always necessary for those sales exempt.

Assigning Tax Codes
Tax rates are decided by the Tax Area assigned to the Customer Card and the Tax Group Code on the Item Card
If the Customer is Tax Liable and is assigned a Tax Area Code which has Tax Jurisdiction Rates greater than zero; and the Item has a Tax Group Code of TAXABLE, then tax is automatically calculated for the Sales line item.




























































Setting up U.S. sales tax in Microsoft Dynamics 365 Business Central can be complex, especially for businesses dealing with multiple states and varying tax rules. Proper configuration ensures accurate tax calculation, compliance, and smoother financial reporting, which is essential for avoiding costly errors.
While tools like Business Central help streamline financial operations, many growing SMEs also need flexible funding options to support their expansion and cash flow needs. Platforms like Grid Finance provide practical business finance solutions that help companies stay stable while scaling operations.
Struggling with compliance? Sales & Use Tax filing help is just a click away.