Owner occupied duplex, trying to buy SFH

[Christopher Drotzur]

I’m sure this is constantly asked, but maybe I am not searching correctly for an answer.

Currently owner occupy a duplex (4 years), with the current rent covering the mortgage. Current tenant agreed to a new lease increasing the rent about 30%. We would like to move and rent out both units. Do banks consider this as income when looking to purchase a new primary, or only what has shown up previously on filed taxes? Would my unit that I currently reside in be considered into future income in any way?

thanks in advance