Loan repayments generally depend on four things:
Term of the loan
As a guide, terms of 25-30 years are common for home loans. The longer the term of the loan, the more time you have to pay it back so your regular repayments may be lower. Bear in mind however, that the longer you take to repay a loan, the more interest you will ultimately have to pay.
Those who can afford to, often choose to make higher regular repayments to pay their loan off sooner. Their intention is to reduce the total interest payable over the life of the loan. Note that some loans (for example, fixed rate loans) have ‘early repayment’ penalties, which apply if you pay the entire loan off within the first few years of the loan term.