How do u report income to centrelink when self employed (for FTB and Parenting payment partnered)?

My partner just started working as a sub contractor under his ABN again, (paying his own tax) and we arent sure how steady the work is going to be and pays are fortnightly too, so we still want to be recieving at least base rates for Family Tax Benefits and Parenting Payments. We were reporting income fortnightly as he was casual and had varied hours. What sort of arrangement will they have us on now? Will they only pay us FTB at the end of the financial year next year?