Are all mortgage calculators the same?

Are all mortgage calculators the same?

June 26, 2011

Loan Market’s Lee Banh answers your burning questions about mortgage calculators.

Will using a mortgage calculator on two different sites yield the same results?
It should, as long as same variables are entered.

Do they all apply set formulas?
Most of them do. However some calculators may use net incomes instead of gross, so need to be careful what you enter.

What tips can you offer for those using a mortgage calculator?

  • Use a slightly higher rate (today’s rate + 1.5%) to see what repayments will be if rates go up and to make sure you can still afford your repayments.

  • Use 25 years as the loan term and compare the results with a 30-year loan term to see what is more comfortable for you, as all lenders offer these options.
  • Change the frequency to fortnightly and monthly to check repayments in line with your pay cycle.

Are there any risks involved?
Yes. If you enter the wrong variables you will either underestimate or, worse, overestimate your borrowing capacity.

Overall, are all mortgage calculators created equal?
The same formulas are used on the back end as almost all Australian lenders calculate interest on a daily basis and charge it a month in arrears. Lenders differ slightly in living expenses for adults and couples and children, and they also have different service loading rates. Almost all lenders have different calculators but they produce similar results.

To compare repayments and interest rates of real mortgage products, or compare home loans at RateCity.

 

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Learn more about home loans

How do I calculate monthly mortgage repayments?

Work out your mortgage repayments using a home loan calculator that takes into account your deposit size, property value and interest rate. This is divided by the loan term you choose (for example, there are 360 months in a 30-year mortgage) to determine the monthly repayments over this time frame.

Over the course of your loan, your monthly repayment amount will be affected by changes to your interest rate, plus any circumstances where you opt to pay interest-only for a period of time, instead of principal and interest.

How long should I have my mortgage for?

The standard length of a mortgage is between 25-30 years however they can be as long as 40 years and as few as one. There is a benefit to having a shorter mortgage as the faster you pay off the amount you owe, the less you’ll pay your bank in interest.

Of course, shorter mortgages will require higher monthly payments so plug the numbers into a mortgage calculator to find out how many years you can potentially shave off your budget.

For example monthly repayments on a $500,000 over 25 years with an interest rate of 5% are $2923. On the same loan with the same interest rate over 30 years repayments would be $2684 a month. At first blush, the 30 year mortgage sounds great with significantly lower monthly repayments but remember, stretching your loan out by an extra five years will see you hand over $89,396 in interest repayments to your bank.

How much are repayments on a $250K mortgage?

The exact repayment amount for a $250,000 mortgage will be determined by several factors including your deposit size, interest rate and the type of loan. It is best to use a mortgage calculator to determine your actual repayment size.

For example, the monthly repayments on a $250,000 loan with a 5 per cent interest rate over 30 years will be $1342. For a loan of $300,000 on the same rate and loan term, the monthly repayments will be $1610 and for a $500,000 loan, the monthly repayments will be $2684.

Which mortgage is the best for me?

The best mortgage to suit your needs will vary depending on your individual circumstances. If you want to be mortgage free as soon as possible, consider taking out a mortgage with a shorter term, such as 25 years as opposed to 30 years, and make the highest possible mortgage repayments. You might also want to consider a loan with an offset facility to help reduce costs. Investors, on the other hand, might have different objectives so the choice of loan will differ.

Whether you decide on a fixed or variable interest rate will depend on your own preference for stability in repayment amounts, and flexibility when it comes to features.

If you do not have a deposit or will not be in a financial position to make large repayments right away you may wish to consider asking a parent to be a guarantor or looking at interest only loans. Again, which one of these options suits you best is reliant on many factors and you should seek professional advice if you are unsure which mortgage will suit you best.

What is mortgage stress?

Mortgage stress is when you don’t have enough income to comfortably meet your monthly mortgage repayments and maintain your lifestyle. Many experts believe that mortgage stress starts when you are spending 30 per cent or more of your pre-tax income on mortgage repayments.

Mortgage stress can lead to people defaulting on their loans which can have serious long term repercussions.

The best way to avoid mortgage stress is to include at least a 2 – 3 per cent buffer in your estimated monthly repayments. If you could still make your monthly repayments comfortably at a rate of up to 8 or 9 per cent then you should be in good position to meet your obligations. If you think that a rate rise would leave you at a risk of defaulting on your loan, consider borrowing less money.

If you do find yourself in mortgage stress, talk to your bank about ways to potentially reduce your mortgage burden. Contacting a financial counsellor can also be a good idea. You can locate a free counselling service in your state by calling the national hotline: 1800 007 007 or visiting www.financialcounsellingaustralia.org.au.

What percentage of income should my mortgage repayments be?

As a general rule, mortgage repayments should be less than 30 per cent of your pre-tax income to avoid falling into mortgage stress. When mortgage repayments exceed this amount it becomes hard to budget for other living expenses and your lifestyle quality may be diminished.

What happens to my home loan when interest rates rise?

If you are on a variable rate home loan, every so often your rate will be subject to increases and decreases. Rate changes are determined by your lender, not the Reserve Bank of Australia, however often when the RBA changes the cash rate, a number of banks will follow suit, at least to some extent. You can use RateCity cash rate to check how the latest interest rate change affected your mortgage interest rate.

When your rate rises, you will be required to pay your bank more each month in mortgage repayments. Similarly, if your interest rate is cut, then your monthly repayments will decrease. Your lender will notify you of what your new repayments will be, although you can do the calculations yourself, and compare other home loan rates using our mortgage calculator.

There is no way of conclusively predicting when interest rates will go up or down on home loans so if you prefer a more stable approach consider opting for a fixed rate loan.

What happens to your mortgage when you die?

There is no hard and fast answer to what will happen to your mortgage when you die as it is largely dependent on what you have set out in your mortgage agreement, your will (if you have one), other assets you may have and if you have insurance. If you have co-signed the mortgage with another person that person will become responsible for the remaining debt when you die.

If the mortgage is in your name only the house will be sold by the bank to cover the remaining debt and your nominated air will receive the remaining sum if there is a difference. If there is a turn in the market and the sale of your house won’t cover the remaining debt the case may go to court and the difference may have to be covered by the sale of other assets.  

If you have a life insurance policy your family may be able to use some of the lump sum payment from this to pay down the remaining mortgage debt. Alternatively, your lender may provide some form of mortgage protection that could assist your family in making repayments following your passing.

Remaining loan term

The length of time it will take to pay off your current home loan, based on the currently-entered mortgage balance, monthly repayment and interest rate.

What is the best interest rate for a mortgage?

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.

What happens when you default on your mortgage?

A mortgage default occurs when you are 90 days or more behind on your mortgage repayments. Late repayments will often incur a late fee on top of the amount owed which will continue to gather interest along with the remaining principal amount.

If you do default on a mortgage repayment you should try and catch up in next month’s payment. If this isn’t possible, and missing payments is going to become a regular issue, you need to contact your lender as soon as possible to organise an alternative payment schedule and discuss further options.

You may also want to talk to a financial counsellor. 

How can I calculate interest on my home loan?

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.

Mortgage Calculator, Loan Purpose

This is what you will use the loan for – i.e. investment. 

What is an interest-only loan? How do I work out interest-only loan repayments?

An ‘interest-only’ loan is a loan where the borrower is only required to pay back the interest on the loan. Typically, banks will only let lenders do this for a fixed period of time – often five years – however some lenders will be happy to extend this.

Interest-only loans are popular with investors who aren’t keen on putting a lot of capital into their investment property. It is also a handy feature for people who need to reduce their mortgage repayments for a short period of time while they are travelling overseas, or taking time off to look after a new family member, for example.

While moving on to interest-only will make your monthly repayments cheaper, ultimately, you will end up paying your bank thousands of dollars extra in interest to make up for the time where you weren’t paying off the principal.