Currently default accounting basis for reports is accrual even if you happen to work on cash basis and you have configured that in GST settings. I would like to suggest that the GST settings should b...
Even if you have set the GST reporting to Accural in the settings the summary GST report - GST Report for Activity Statement will always automatically tick the Cash box. It should reflect your internal settings and be unticked if you are set for Accruals.