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Work with Tax Codes in Jim2

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Tax codes in Jim2 are used to calculate GST and related taxes, and to calculate the relevant values required for a GST session. Tax codes are included in sections throughout Jim2, however the focus here is on the use of tax codes in general ledger accounts, cheque book entries, general journals, expense orders and debtor/creditor adjustments.


In Tools > Setups > Accounting > Tax Codes, Jim2 displays the tax codes and where and how they report in GST sessions:


setup tax codes


You may want to review these with your external accountant for further clarification.



Please do not add any tax codes to this master list without first consulting Happen Business.


It is important to ensure you have the correct tax code in each line of a transaction, prior to finishing the transaction.


General Rules for Commonly Used Tax Codes

Tax Code X is used on any accounts and/or transactions where there is no GST and no BAS reporting, such as:

Asset accounts, ie. bank accounts, prepayments, depreciation on fixed assets.

Liability accounts, ie. credit card accounts, liability accounts, ie. the gst collected and paid, superannuation payable, loan accounts and accruals.

Equity accounts, ie. capital, drawings, and retained earnings.

Income/other income/COGS/expenses/other expense accounts, ie. interest received or paid, stamp duty, import duty and stock adjustments.


Tax Code X is also used on:

All payments to the ATO.

General journals if you are moving balances between GL accounts.

Debtors/creditors adjustments, if you are moving balances between accounts.

The bank account side of all cheque book transactions – withdrawal or deposit – this is automated by jim2.


Tax Code N is used on accounts and/or transactions where there is no GST and there is BAS reporting such as:

Some expense accounts, ie. bank fees that do not incur GST (but some charges do incur GST).

Some staff amenities, ie. tea, coffee, milk, sugar, bottled water.

Invoices from suppliers who have an ABN but are not registered for GST.


Tax Code E is a sales only GST designation for export revenue only.


Tax Code G is used on all transactions which incur GST.


Tax Code C is used on the purchase of fixed assets (capital acquisitions).


Tax Code P is used for gross wages on payroll general journals so the figures report into W1 in GST Sessions.


Tax Code Q is used for PAYG withheld from wages on payroll general journals so the figures report into W2 in GST sessions, but should never be used when paying the ATO, or the amount will be deducted from W2.


Tax Code Y is used on bulk GST payments to your customs agents on imports.


Default Tax Codes in Jim2 General Ledger Accounts

Default tax codes can be set against individual general ledger accounts. This means whenever you record a transaction against a general ledger account, the tax code is automatically selected based on that default.


To set a default tax code for a general ledger account:

Go to Accounts > General Ledger and locate the required account.

Double click on the GL account to open in edit mode.

Click the down arrow in the Default Tax Code field, select the required tax code and click OK.

edit tax code


In all circumstances, it is important to ensure you have the correct tax code in each line of each transaction. If the default tax code is incorrect for a line in a particular transaction, please amend the tax code for that line.



Stock on hand, COGS and income accounts that are linked in a stock GL group do not need a default tax code set as the individual transactions (purchases and sales) determine the GST reporting.


Further information:

Tax Codes