Canadian Payroll: recording tax obligations when there is no net pay

Canadian JDE Payroll expertise needed: is there a good practice (or any practice at all) at how to deal with recording tax contributions (employee and employer portions) in scenarios when there is no net pay.

Use case: processing non-cash taxable benefits for employees on mat leave. Taxable benefits, depending on the type, can be subject to CPP/QPP, EI, QPIP, income tax, etc. Currently when we record such taxable benefits (and we have to record them as the employees "enjoy" them, not when and if they come back to work), there are no CPP/QPP/EI or QPIP contributions that get triggered, however we still need to calculate and remit them in the reporting year. Any good tricks anyone knows?