How Extra Mortgage Payments Can Save You Thousands
When it comes to managing a mortgage, one of the most powerful strategies to save money and reduce the time it takes to pay off your loan is by making extra payments. Whether it’s a lump sum payment, smaller regular contributions, or increasing your regular payments, putting extra money toward your mortgage can drastically reduce the amount of interest you pay over the life of the loan.
A mortgage calculator is an invaluable tool for planning these extra payments, allowing you to see exactly how much money you can save and how much sooner you can be mortgage-free. In this article, we’ll explore how extra payments work, why they can save you thousands, and how to use a mortgage calculator to plan your path to financial freedom.
Understanding How Extra Payments Work
When you make regular mortgage payments, your lender divides the payment into two parts: one portion goes toward paying down the principal (the amount you borrowed), and the other portion goes toward interest (the cost of borrowing the money).
In the early years of a mortgage, the bulk of your payments go toward interest because interest is calculated based on the remaining balance of the loan. However, by making extra payments, you reduce the principal balance more quickly. Since interest is calculated on a smaller loan balance, this reduces the total amount of interest you’ll pay over the life of the loan.
For example, if you have a 30-year mortgage and start making extra payments from year one, you’ll start paying down the principal much faster. This reduces the overall term of the loan and saves you a significant amount of money in interest payments.
The Benefits of Making Extra Payments
There are multiple benefits to making extra payments on your mortgage, some of which may surprise you. Let’s break down why this strategy is so effective:
1. Save Thousands in Interest
The most obvious benefit of making extra mortgage payments is the interest savings. Since the interest on your mortgage is calculated based on the outstanding loan balance, paying down the principal faster means you’ll be charged less interest over time. Even small extra payments made consistently can result in substantial savings.
2. Shorten the Loan Term
Making extra payments also reduces the length of your loan. For example, instead of taking the full 30 years to pay off your mortgage, you might be able to pay it off in 25 years or even sooner. This means you’ll own your home outright more quickly, and you’ll avoid paying interest for those extra years.
3. Increased Financial Security
Paying off your mortgage early can give you a greater sense of financial security. Without the burden of mortgage payments, you’ll have more disposable income each month, which can be put toward other financial goals such as retirement savings, investments, or even travel and lifestyle improvements.
4. Build Home Equity Faster
By reducing the principal faster, you also build equity in your home at a quicker rate. This is particularly beneficial if you ever want to refinance, sell the property, or take out a home equity loan. Having more equity in your home gives you more financial flexibility.
5. Reduce the Risk of Rising Interest Rates (for Variable Loans)
For those with variable-rate mortgages, extra payments can help protect you from future rate increases. If interest rates rise, your regular payments may become more expensive, but by paying down the loan earlier, you can shield yourself from the full impact of these increases.
Using a Mortgage Calculator to Plan Extra Payments
A mortgage calculator is an essential tool for planning extra payments and understanding their full impact. With just a few clicks, you can simulate different payment scenarios and see how much money and time you’ll save by making extra contributions. Here’s how to use a mortgage calculator to plan your strategy:
Step 1: Input Your Current Loan Details
Start by entering the basic details of your current mortgage:
- Loan amount: This is the total balance of your loan (e.g., $500,000).
- Interest rate: Input the interest rate your lender is charging (e.g., 4%).
- Loan term: Enter the length of your mortgage (e.g., 30 years).
- Repayment frequency: Select whether you make monthly, fortnightly, or weekly repayments.
Once you input this information, the mortgage calculator will display your regular repayment amount and the total amount of interest you’ll pay over the life of the loan.
Step 2: Add Extra Payments
Next, experiment with adding extra payments. You can input one-off lump-sum payments (such as a bonus or tax refund) or regular additional payments (such as an extra $200 per month). The mortgage calculator will update the repayment schedule to reflect these changes and show you the new total interest paid and how much sooner you’ll pay off the loan.
Step 3: Compare Different Scenarios
Try experimenting with different extra payment amounts to see how they affect your mortgage. For example, compare the impact of making an extra $100 per fortnight versus an extra $200 per month. The calculator will show you how each option changes the total interest you’ll pay and the loan term.
You can also test the effect of making a one-time lump-sum payment, such as using a windfall or savings, and see how much that payment reduces your loan balance and term.
Step 4: Assess Your Financial Flexibility
Finally, consider how these extra payments fit into your overall financial plan. While making extra payments is an excellent strategy to save on interest, it’s important to balance this with other financial priorities, such as building an emergency fund, contributing to retirement savings, or paying off high-interest debt. The mortgage calculator helps you visualise the long-term benefits of extra payments while keeping your current budget in mind.
How Much Can You Save with Extra Payments?
Let’s break this down with an example:
Example Scenario
- Loan amount: $500,000
- Interest rate: 4%
- Loan term: 30 years
- Regular monthly payment: $2,387
Without making any extra payments, you would pay approximately $359,000 in interest over the life of the loan, with a total repayment amount of $859,000.
Now, let’s see how extra payments can change this outcome.
Scenario 1: Adding $100 per month
If you add just $100 per month to your regular payment, the mortgage calculator will show:
- New total interest paid: Approximately $336,000 (a savings of $23,000).
- Loan term shortened by 2.5 years: You’ll pay off the mortgage in approximately 27.5 years instead of 30.
Scenario 2: Adding $200 per month
By increasing your extra payments to $200 per month, you’ll see even greater savings:
- New total interest paid: Approximately $314,000 (a savings of $45,000).
- Loan term shortened by 5 years: You’ll pay off the mortgage in approximately 25 years.
Scenario 3: One-time lump sum payment of $10,000
If you receive a windfall or save up for a one-time $10,000 lump-sum payment:
- New total interest paid: Approximately $342,000 (a savings of $17,000).
- Loan term shortened by 1.5 years: You’ll pay off the mortgage in approximately 28.5 years.
As these scenarios show, even modest extra payments can have a significant impact on the total interest paid and the loan term. The earlier in your mortgage you make these payments, the more you stand to save.
Choosing the Right Extra Payment Strategy
There are several ways to incorporate extra payments into your mortgage strategy, and the right approach will depend on your financial situation and goals. Here are a few popular strategies:
1. Round Up Your Payments
A simple way to make extra payments without feeling the pinch is to round up your regular repayments. For example, if your monthly repayment is $2,387, round it up to $2,400 or $2,500. These small, consistent overpayments can accumulate over time and help you pay off your loan faster.
2. Make Biweekly Payments
Instead of making one monthly payment, consider switching to fortnightly payments. This strategy works because there are 26 fortnights in a year, meaning you’ll make the equivalent of one extra monthly payment per year. This reduces the loan term and saves interest over time.
3. Use Bonuses and Tax Refunds
If you receive an annual bonus or tax refund, consider putting some or all of it toward your mortgage. Even a one-time lump-sum payment can significantly reduce your loan balance and save you interest in the long term.
4. Automate Extra Payments
If you’re serious about paying off your mortgage early, consider automating your extra payments. Set up a direct debit for an extra amount on top of your regular repayment. This way, you won’t have to think about it, and the extra payments will consistently reduce your loan balance.
Extra Payments: Things to Watch Out For
While making extra payments can save you thousands, there are a few things to keep in mind:
1. Check for Fees or Restrictions
Some lenders impose restrictions or fees for making extra payments, especially on fixed-rate loans. Check with your lender to ensure that you can make extra payments without incurring penalties.
2. Keep an Emergency Fund
While it’s great to pay off your mortgage early, don’t forget to maintain a healthy emergency fund. It’s important to have enough liquid savings to cover unexpected expenses, so don’t funnel all your extra cash into your mortgage.
3. Balance with Other Financial Goals
Consider how your mortgage fits into your broader financial plan. While saving on interest is beneficial, you should also prioritise high-interest debt repayment, retirement savings, and other financial goals.
How Extra Payments Can Unlock Financial Freedom
Making extra payments on your mortgage is a simple yet powerful strategy that can save you thousands of dollars in interest and help you pay off your loan years earlier. By using a mortgage calculator, you can easily see the impact of different extra payment amounts, plan your repayment strategy, and take control of your financial future.
Whether you’re adding a small amount to each repayment, making lump-sum contributions, or rounding up your payments, these small efforts add up over time. With the right strategy, you’ll be on your way to financial freedom and a mortgage-free life sooner than you thought possible.

