Some employers need to maintain multiple separate payrolls, but you can only lodge one Employer Monthly Schedule (IR348) with Inland Revenue per period. To get around this, you will need to combine the files before you submit them. In Ace Payroll this is called amalgamating your schedules.
You can combine monthly schedules for two or more companies and create a single file, using original monthly schedules produced by Ace Payroll or any compliant payroll software. This way you can keep your payrolls separate, and send a single file to Inland Revenue.
To amalgamate your Employer Monthly Schedules, follow our guide to combining multiple Employer Monthly Schedules.