Individual tax payer.
Purchased land on margin scheme on 01/02/2020. At the time of purchase tax payer was not registered for GST. Cost $330K (incl.GST).
Tax payer begun registering for GST on 01/05/2020.
Subdivide and built a dwelling during 2021, equally divided with land size, value of land etc. Cost $440K for the sold dwelling only.
Sold one of the two dwellings on 01/05/2022 on Margin Scheme at $990K (incl.GST).
What is the GST upon sale of this property by using Margin Scheme is still ($990-$330k)/11? Or $990 K/11 only since at the time of purchase the tax payer was not registered for GST?
Thanks.