How to Create Tax Formula in Oracle Fusion Tax

Tax Formula Overview

Tax formulas are used in the tax calculation process. They help to determine the taxable basis of a
transaction line and the calculation methodology that must be applied to obtain the tax amount.
When the parameters available on a transaction do not satisfy the rule conditions, the default tax
formulas defined for the tax are applicable.
There are two types of tax formulas:

Taxable basis tax formula
Tax calculation tax formula

Taxable Basis Tax Formula

The taxable basis tax formula is used in the tax calculation process. They help to determine the
amount or quantity that should be considered as the taxable basis of a transaction line. The tax rate
is applied on the taxable basis amount to derive the basic tax amount on a transaction line.
The taxable basis type, defined in the taxable basis formula, decides the characteristics of the
taxable basis amount.
The various taxable basis types are:

Line amount
Assessable value
Prior tax
Quantity
The following standard predefined taxable basis tax formulas are available:
STANDARD_QUANTITY
STANDARD_TB
STANDARD_TB_DISCOUNT

Line amount

Use line amount when the transaction line amount is to be treated as the taxable basis to
calculate tax.
By Default, Taxable Basis is Line Amount (STANDARD_TB) in tax setup

Step 1: Search “Manage Tax Formulas” task

Step 2: Select the Tax Formula Type

Step-3 Search the Tax Formula Code

Scenario: STANDARD_TB
Taxable Basis is Line Amount (STANDARD_TB)

Example:
Line Amount = 1000
Tax Calculation = Taxable Basis *Rate%
Tax Calculation = Line Amount *10%
Tax = 1000 *10%
Tax =100

Base Rate Modifier
The transaction line amount is increased or decreased based on the percentage value given.

Scenario 1: Taxable Basis = Line Amount + Base Rate Modifier
Step 1: Creating Taxable Basis Formula:
Navigation: Manage Tax Formulas →Create Taxable Basis Formula

Step 2-Assign the user defined taxable basis formula in the tax setup.

Example:
Line Amount = 1000
Base Rate Modifier = 50% of line amount = 500
Taxable Amount = Line Amount + Base Rate Modifier
= 1000 + 500
= 1500
Tax Calculation = Taxable Amount * Rate%
= 1500*10%
Tax = 150

Step 3: Create transaction and check the taxable amount

Scenario 2: Taxable Basis = Line Amount – Base Rate Modifier

Another example of Base Rate Modifier: Calculate two taxes on a transaction.
Tax1 should be 3% of line amount and Tax2 should be (Line Amount – Tax1) X 0.1%
Example:
Line amount = 20000
Tax1 = 200003% Tax1 = 600 Taxable amount for Tax2 is (Line Amount –Tax1) i.e. 20000-600= 19400 Tax2 = 194000.1% = 19.4

Step 1: Create Tax1 and select STANDARD_TB as taxable basis formula