Aussie tax per-transaction

For business owners who want to calculate the income tax they should put aside for each transaction that comes in, with the context of the history of transactions.

Problem

Calculating tax as a sole trader goes as follows:

• Earn heaps of money.
• Spend all of it.
• Realize you need to pay tax.
• Use coming year's income to cover the last tax bill.

This one-file Python script (app/app.py) simplifies that by letting you input each transaction and calculate the income tax before and after it. As you input transactions, the estimated tax to allot is printed out.

Note:

• Tax calculations are using ATO's 22/23 rates (https://atotaxrates.info/individual-tax-rates-resident/ato-tax-rates-2023/).
• This is not financial advice, and the estimates are just estimates. Any use is on your own.