That is completely confusing. Since when has an outside entity (tax authority, superannuation, union) been the equivalent to an internal P&L account.
And therein lies the problem, if the Payroll Deduction Item could be posted directly to the P&L account then the Journal wouldn’t be required, therefore only one entry required not the two as forced by Manager.
The employees total compensation has absolutely nothing to do with - the employee earns 1000 per month regardless of any deductions. He has the choice of renting onsite or offsite - the rent payment (private landlord or boss) is a completely separate unrelated transaction to their earnings. Same with the car, use their own or a company car, the payment is unrelated to their to their earnings.
These deductions are not something which have been added into a package up front and then subsequently adjusted out - they are stand alone independent transactions. Why does Manager not recognise the existence of such deduction types and allow them to be posted directly.
For an extensive discussion on this subject read this topic