Request for additional decimal in tax calculation

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Posted on by DB-08101538-0

We are configuring tax calculations in our D365 Finance environment, where we handle transactions between multiple currencies. In particular, we are billing a customer in USD while accounting in the local currency (COP). We noticed that tax calculation only considers two decimal places when converting between transactions and accounting/reporting currencies.

For example, a tax amount calculated as $45.45 USD would be more accurate if the system considered a more precise value, as $45.448, based on the exchange rate (e.g., 4168). Is there a standard parameter or configuration in D365 Finance that allows for more decimal places in tax calculations during currency conversion or is there any recommended approach or customization for this scenario?

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BillurSamdancioglu 20,521 Most Valuable Professional on at

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Hi,

OOB, there isn't decimal parameter for only tax calculation.

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Bharath jain 1,501 Super User 2026 Season 1 on at

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Hi,

There is no parameter in the standard to extend the decimals. However, you can extend EDT up to 6 decimal places through customization.

Link: https://learn.microsoft.com/en-us/dynamics365/fin-ops-core/dev-itpro/extensibility/decimal-point-precision

Regards,

Bharath Jain

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Anton Venter 20,635 Super User 2026 Season 1 on at

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In addition to what the others have mentioned already. Without knowing any further context of your situation, I think a possibility to solve this requirement, is to have a customisation that calculates the differences for you. You can then easily handle those differences as required and you don't have to change the way the standard calculates the tax, which is very hard or probably impossible to do.

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