‘Principal and interest’ loans are the most common type of home loans on the market. The principal part of the loan is the initial sum lent to the customer and the interest is the money paid on top of this, at the agreed interest rate, until the end of the loan.

By reducing the principal amount, the total of interest charged will also become smaller until eventually the debt is paid off in full.

A variable rate home loan is one where the interest rate can and will change over the course of your loan. The rate is determined by your lender, not the Reserve Bank of Australia, so while the cash rate might go down, your bank may decide not to follow suit, although they do broadly follow market conditions. One of the upsides of variable rates is that they are typically more flexible than their fixed rate counterparts which means that a lot of these products will let you make extra repayments and offer features such as offset accounts.

A bad credit home loan is a mortgage for people with a low credit score. Lenders regard bad credit borrowers as riskier than ‘vanilla’ borrowers, so they tend to charge higher interest rates for bad credit home loans.

If you want a bad credit home loan, you’re more likely to get approved by a small non-bank lender than by a big four bank or another mainstream lender.

If you want to get a home loan with bad credit, you need to convince a lender that your problems are behind you and that you will, indeed, be able to repay a mortgage.

One step you might want to take is to visit a mortgage broker who specialises in bad credit home loans (also known as ‘non-conforming home loans’ or ‘sub-prime home loans’). An experienced broker will know which lenders to approach, and how to plead your case with each of them.

Two points to bear in mind are:

• Many home loan lenders don’t provide bad credit mortgages
• Each lender has its own policies, and therefore favours different things

If you’d prefer to directly approach the lender yourself, you’re more likely to find success with smaller non-bank lenders that specialise in bad credit home loans (as opposed to bigger banks that prefer ‘vanilla’ mortgages). That’s because these smaller lenders are more likely to treat you as a unique individual rather than judge you according to a one-size-fits-all policy.

Lenders try to minimise their risk, so if you want to get a home loan with bad credit, you need to do everything you can to convince lenders that you’re safer than your credit history might suggest. If possible, provide paperwork that shows:

• You have a secure job
• You have a steady income
• You’ve been reducing your debts
• You’ve been increasing your savings

You can calculate the total interest you will pay over the life of your loan by using a mortgage calculator. The calculator will estimate your repayments based on the amount you want to borrow, the interest rate, the length of your loan, whether you are an owner-occupier or an investor and whether you plan to pay ‘principal and interest’ or ‘interest-only’.

If you are buying a new home, the calculator will also help you work out how much you’ll need to pay in stamp duty and other related costs.

Home loans spanning 40 years are offered by select lenders, though the loan period is much longer than a standard 30-year home loan. You're more likely to find a maximum of 35 years, such as is the case with Teacher’s Mutual Bank. 

Currently, 40 year home loan lenders in Australia include AlphaBeta Money, BCU, G&C Mutual Bank, Pepper, and Sydney Mutual Bank.

Even though these lengthier loans 35 to 40 year loans do exist on the market, they are not overwhelmingly popular, as the extra interest you pay compared to a 30-year loan can be over $100,000 or more.

Your current home loan interest rate. To accurately calculate how much you could save, an accurate interest figure is required. If you are not certain, check your bank statement or log into your mortgage account.

Bad credit home loans can be dangerous if the borrower signs up for a loan they’ll struggle to repay. This might occur if the borrower takes out a mortgage at the limit of their financial capacity, especially if they have some combination of a low income, an insecure job and poor savings habits.

Bad credit home loans can also be dangerous if the borrower buys a home in a stagnant or falling market – because if the home has to be sold, they might be left with ‘negative equity’ (where the home is worth less than the mortgage).

That said, bad credit home loans can work out well if the borrower is able to repay the mortgage – for example, if they borrow conservatively, have a decent income, a secure job and good savings habits. Another good sign is if the borrower buys a property in a market that is likely to rise over the long term.

It’s no longer possible to get a no-deposit home loan in Australia. In some circumstances, you might be able to take out a mortgage with a 5 per cent deposit – but before you do so, it’s important to weigh up the pros and cons.

The big advantage of borrowing 95 per cent (also known as a 95 per cent home loan) is that you get to buy your property sooner. That may be particularly important if you plan to purchase in a rising market, where prices are increasing faster than you can accumulate savings.

But 95 per cent home loans also have disadvantages. First, the 95 per cent home loan market is relatively small, so you’ll have fewer options to choose from. Second, you’ll probably have to pay LMI (lender’s mortgage insurance). Third, you’ll probably be charged a higher interest rate. Fourth, the more you borrow, the more you’ll ultimately have to pay in interest. Fifth, if your property declines in value, your mortgage might end up being worth more than your home.

Fixed rate

A fixed rate home loan is a loan where the interest rate is set for a certain amount of time, usually between one and 15 years. The advantage of a fixed rate is that you know exactly how much your repayments will be for the duration of the fixed term. There are some disadvantages to fixing that you need to be aware of. Some products won’t let you make extra repayments, or offer tools such as an offset account to help you reduce your interest, while others will charge a significant break fee if you decide to terminate the loan before the fixed period finishes.

Variable rate

A variable rate home loan is one where the interest rate can and will change over the course of your loan. The rate is determined by your lender, not the Reserve Bank of Australia, so while the cash rate might go down, your bank may decide not to follow suit, although they do broadly follow market conditions. One of the upsides of variable rates is that they are typically more flexible than their fixed rate counterparts which means that a lot of these products will let you make extra repayments and offer features such as offset accounts.

Split rates home loans

A split loan lets you fix a portion of your loan, and leave the remainder on a variable rate so you get a bet each way on fixed and variable rates. A split loan is a good option for someone who wants the peace of mind that regular repayments can provide but still wants to retain some of the additional features variable loans typically provide such as an offset account. Of course, with most things in life, split loans are still a trade-off. If the variable rate goes down, for example, the lower interest rates will only apply to the section that you didn’t fix.

Yes, ANZ, Commonwealth Bank, NAB and Westpac all offer guarantor home loans. These mortgages are also offered by many other banks, credit unions and building societies.

The fastest way to find out what the lowest interest rates on the market are is to use a comparison website.

While a low interest rate is highly preferable, it is not the only factor that will determine whether a particular loan is right for you.

Loans with low interest rates can often include hidden catches, such as high fees or a period of low rates which jumps up after the introductory period has ended.

To work out the best value for money, have a look at a loan’s comparison rate and read the fine print to get across all the fees and charges that you could be theoretically charged over the life of the loan.

A guarantor is someone who provides a legally binding promise that they will pay off a mortgage if the principal borrower fails to do so.

Often, guarantors are parents in a solid financial position, while the principal borrower is a child in a weaker financial position who is struggling to enter the property market.

Lenders usually regard borrowers as less risky when they have a guarantor – and therefore may charge lower interest rates or even approve mortgages they would have otherwise rejected.

However, if the borrower falls behind on their repayments, the lender might chase the guarantor for payment. In some circumstances, the lender might even seize and sell the guarantor’s property to recoup their money.

If you want to take out a low-deposit home loan, it might be a good idea to consult a mortgage broker who can give you professional financial advice and organise the mortgage for you.

Another way to take out a low-deposit home loan is to do your own research with a comparison website like RateCity. Once you’ve identified your preferred mortgage, you can apply through RateCity or go direct to the lender.