In the sales invoice, the item rate is by default inclusive of GST. How do I make it exclusive of GST?

To update the tax preference for your items:

1. Click the Settings icon at the top right corner of the page.
2. Go to Preferences and choose General.
3. Scroll down until you find the Do you sell your items at rates inclusive of Tax? and choose the Tax Exclusive option. Also, choose the Round Off Tax preference.
4. Click Save.