Your husband can check the status of his tax return if he has a myGov account that is linked to ATO online services and update any account details. Alternatively, you can contact to tax agent or agency you used to lodge your return.
We aim to process electronic tax returns within 12 days so if it's still within this timeframe you need to allow the return to process. You can check out our guide on Tax Time: Where’s my tax return? for more information on how your return is processed.