The error occurs when the Number of months eligible for part-year tax-free threshold is entered, but the Australian residency start date and end date are missing.
To resolve:
Log in to HandiTax and Select the tax return.
Double-click on the Cover.
Check and enter the residency dates on the Cover page.
Note: Fixing this may trigger a new SBR error about the country where interest or dividends were paid. If that happens, ensure the country code box is populated at:
Item 10, Gross Interest.
Item 11, Dividends.