Property Investment Category Rules

Speak to other property investors on this board. Talk about Buy-to-Let, compare strategies and boast about your portfolio.

Does anyone know the specifics on how your income is assessed with regards to which capital gains bracket a sale fall into?

We are selling a flat and the owner is currently a basic rate taxpayer but their income will increase in September and they will be paying higher rate through PAYE. The property sale will certainly complete after September.

Given that we pay CG within 30days, do we look at the total income for the 12 months prior to paying the tax, or the last tax return, or the income that is expected in the tax year of the sale? Or something else?