Refund is neither bonus nor government subsidy.
It is only the difference between
- Total amount of tax withheld (prepaid tax)
- Tax liability on taxable income and
Where 1 is bigger than 1, you can get a refund as over paid tax. The refund amount is 1 - 2.Where 2 is bigger than 1, you get tax payable assessment for a shortage of tax paid. The payable amount is 2 - 1.
To increase your tax refund, 2 should be reduced. To reduce 2, deductions such as work related expenses can help reduce taxable income resulting in reducing 2.
Or where 1 is bigger, your refund is bigger. This however means that you received less weekly/fortnightly net wage as more tax is withheld. In contrast, less tax refund means that you receive more weekly/fortnightly wage as less tax is withheld. In short, you never get gain or loss.