---
id: object/codeunit/20291
type: object
title: Codeunit 20291 "Tax Rate Computation"
summary: Codeunit 20291 "Tax Rate Computation" in INTaxEngine (Microsoft.Finance.TaxEngine.UseCaseBuilder). 5 public procedures. Introduced in BC29, still in BC30.
tier: official
language: en
tags:
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  - intaxengine
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object_type: codeunit
object_id: 20291
name: Tax Rate Computation
namespace: Microsoft.Finance.TaxEngine.UseCaseBuilder
app: INTaxEngine
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---

# Codeunit 20291 "Tax Rate Computation"

> Codeunit 20291 "Tax Rate Computation" in INTaxEngine (Microsoft.Finance.TaxEngine.UseCaseBuilder). 5 public procedures. Introduced in BC29, still in BC30.

INTaxEngine · Microsoft.Finance.TaxEngine.UseCaseBuilder · BC29-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/W1/INTaxEngine/app/TaxEngine-UseCaseBuilder/src/UseCase/codeunit/TaxRateComputation.Codeunit.al) · facts from BC29

## Procedures

- `GetTaxAttributes(var SymbolStore: Codeunit "Script Symbol Store"; var SourceRecordRef: RecordRef; CaseID: Guid)`
- `GetTaxColumns(var SymbolStore: Codeunit "Script Symbol Store"; var SourceRecordRef: RecordRef; CaseID: Guid)`
- `CalculateTaxComponent(var SymbolStore: Codeunit "Script Symbol Store"; var SourceRecordRef: RecordRef; CaseID: Guid; CurrencyCode: Code[20]; CurrencyFactor: Decimal)`
- `RoundAmount(Amount: Decimal; Precision: Decimal; Direction: Enum "Rounding Direction"): Decimal`
- `UpdateComponentPercentages(var SymbolStore: Codeunit "Script Symbol Store"; var SourceRecordRef: RecordRef; CaseID: Guid)`

Plus 23 local procedures.

## Calls

From the extracted call graph of BC29 (graphify-al on the snapshot checkout): calls whose target is known from a declared type or an `Object::"Name"` argument. Interface dispatch and calls through events are not counted, so the list is not complete.

- [Codeunit 20134 "Script Symbol Store"](../codeunit/20134.md) (12 calls: `ExecuteComponentExpression → GetConstantOrLookupValue`, `ExecuteComponentExpression → SetSymbol2`, `GenerateTransactionRateID → GetSymbolOfType`, …)
- [Codeunit 20132 "Script Data Type Mgmt."](../codeunit/20132.md) (4 calls: `ExecuteComponentExpression → EvaluateExpression`, `GenerateTransactionRateID → Variant2Text`, `UpdatComponentPercentSymbols → Text2Number`, …)
- [Codeunit 20234 "Tax Attribute Management"](../codeunit/20234.md) (4 calls: `ModifyAttributeTaxTransactionValue → GetAttributeOptionText`, `UpdateTaxAttributeValue → GetAttributeName`, `UpdateTaxColumnValue → GetAttributeOptionIndex`, …)
- [Codeunit 20283 "Switch Statement Execution"](../codeunit/20283.md) (2 calls: `UpdateTaxAttributeValue → GetActionID`, `UpdateTaxColumnValue → GetActionID`)
- [Codeunit 20235 "Use Case Data Type Mgmt."](../codeunit/20235.md) (1 call: `UpdateRateColumnSymbols → GetAttributeDataTypeToVariableDataType`)
- [Codeunit 20298 "Use Case Variables Mgmt."](../codeunit/20298.md) (1 call: `UpdateTaxAttributeValue → GetTaxAttributeValue`)

## Called by

- [Codeunit 20293 "Use Case Execution"](../codeunit/20293.md) (4 calls: `ExecuteUseCase → CalculateTaxComponent`, `ExecuteUseCase → GetTaxAttributes`, `ExecuteUseCase → GetTaxColumns`, …)
- [Codeunit 20232 "Tax Type Object Helper"](../codeunit/20232.md) (2 calls: `GetComponentAmount → RoundAmount`, `GetComponentAmountFrmTransValue → RoundAmount`)
- [Codeunit 20343 "Tax Posting Buffer Mgmt."](../codeunit/20343.md) (2 calls: `DivideComponentAmount → RoundAmount`, `UpdateFormulaComponent → RoundAmount`)

## Across versions

- Present in: BC29-30
- Changed (declaration) in: none

Source: AL metadata extracted from the code (names, ids, signatures, properties); no code bodies (D10).

## Ask your agent

Procedure bodies are not stored here (D10). The call sections above are our own, per object, from the BC29 call graph. For a procedure body or the calls of one procedure, ask bc-code-atlas (external, by Stefan Maron, MIT; default corpus w1-28), which the bc-observatory plugin connects: `bcatlas_resolve_node(object_type: "codeunit", object_name: "Tax Rate Computation")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.