GST Inclusive Invoice Pricing

Currently, invoice line items can only be entered excluding tax, with GST added afterward in the totals section. I would love the option to enter line item prices as GST inclusive instead.
Example:
Session Price entered: $250.00 (GST inclusive)
Invoice total remains: $250.00
GST breakdown displayed separately: $32.61 GST included (15%)

Ideally, this could be an optional setting where users choose whether line items are entered as Tax Exclusive or Tax Inclusive

Thanks!