父母申请类，担保人的入息证明

skaerna

从移民局网站看到的有关tier one子女担保父母的问题：

Sponsor’s income
To meet the minimum income requirements your sponsor or their partner must earn a minimum of NZ$65,000 per annum. Alternatively, your sponsor and their partner can earn a combined income of NZ$90,000 per annum.

The minimum income requirement can be met through any one or a combination of the following sources of personal income:
Sustained paid employment
Regular self-employment
Regular investment income.

请问，如果只有我老公工作，我老公的工资要是够$65000的话，他可以申请我父母吗？另外，要是他担保$65000不够，要家庭总收入来算的话，我们的房屋租金收入可以算是income，但没有pay GST的，所以IRD不会显示我们有租金收入，但可以提供bank statement., 最后一个疑问是，家庭总收入要扣除home loan吗？这个问题非常仲要，不知道tier one的个人收入要不要扣除home loan来算。