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Savings Goal Calculator

What does this savings goal calculator do?

This tool estimates the number of regular deposits needed to reach a target balance. It combines the money you already have, future contributions and modelled compound interest. You can use it to explore a home deposit, an emergency fund or another cash savings target.

It is a planning tool rather than an account recommendation. The projection assumes the entered interest rate stays unchanged and that every contribution is made on time. Your real balance can differ if rates, deposit dates or account conditions change.

How to use the calculator

Enter your current balance and the total amount you want to have saved. Next, enter an illustrative annual interest rate and the amount you intend to deposit each time. Select monthly, fortnightly or weekly to match your proposed saving routine.

Results update when the inputs are valid. Calculate also refreshes the projection, while Reset restores the example. Use the period slider to inspect the balance, then download the full schedule if you want to review it in a spreadsheet.

Example: growing $10,000 towards $50,000

Starting with $10,000, adding $1,000 at the end of each month and earning an unchanged nominal 6% annually, compounded monthly, reaches the target after 35 deposits: 2 years and 11 months. Total contributions, including the starting balance, are $45,000.

The final balance is approximately $50,053, with about $5,053 in interest. The full final $1,000 contribution is included, so the result slightly exceeds the target. The 6% rate is an example, not a current savings-account offer.

How deposit frequency changes the timeline

A $1,000 monthly contribution means $12,000 contributed over a complete year. The same $1,000 contributed fortnightly means $26,000 a year; weekly means $52,000. Changing frequency without changing the amount therefore changes your annual saving commitment substantially.

For a similar annual contribution, divide your annual budget by 12, 26 or 52. For example, $12,000 annually is $1,000 monthly, approximately $461.54 fortnightly or $230.77 weekly. Small timing and compounding differences can still affect the result.

How interest is calculated

At each period, the model multiplies the opening balance by the annual rate divided by the selected frequency. It adds this interest, then adds your regular deposit. This repeats until your target is reached or the projection limit is reached.

The annual rate is treated as a nominal rate, with 12, 26 or 52 compounding periods. Daily interest, calendar dates and bank-specific crediting rules are not modelled. Deposits are assumed to arrive at the end of each period and begin earning interest in the next period.

Read the savings balance chart

The blue portion of each bar represents your starting balance plus subsequent deposits. The navy portion represents interest earned. Together, they equal the projected savings balance at that point. The last projected period is included, even when it falls partway through a year.

The chart samples long projections to remain readable. The period control provides each period’s figures, while the table summarises complete years and the final partial year. The CSV includes every deposit period, including a starting-balance row at period zero.

Using the calculator for a home deposit

Set a cash target that reflects what you want available, rather than treating a deposit percentage as the complete savings plan. You may also want to allow for purchase costs, moving expenses and money retained after settlement. Enter your combined cash target as the savings goal.

Reaching a savings target does not establish loan eligibility. Borrowing capacity and the source of funds require separate consideration. Use your projection as a starting point for a conversation with Capital Connections about your property plans.

Build a plan you can review

Start with a deposit amount you expect to maintain. Save a schedule, increase or decrease the contribution and compare the new timeline. This makes the effect of a change visible without requiring you to assume a higher interest rate.

You can also run a zero-interest scenario to see how much of the plan depends on contributions alone. Revisit the projection when your income, expenses, goal or account rate changes. A regular review is more useful than treating a long-range estimate as a guaranteed date.

Understand the limits

This model excludes tax, account fees, withdrawals, inflation, bonus-rate conditions and changes in the interest rate. It uses equal periods rather than calendar dates. Amounts retain full precision internally and are displayed or exported to cents, so rounded rows may differ slightly when added together.

If your target is already met, the time required is zero. If deposits and interest cannot grow the balance, no achievable date is shown. Other projections stop at 100 years; “not reached” means not reached within that modelled horizon, not necessarily impossible forever.

Frequently asked questions