Home loan repayments

Introductory Rate Loan Calculator

See the repayment during an introductory rate, the repayment when it reverts, and whether the discount is worth it.

Cost: Free
Your figures: Stay in your browser
Method: Set out below

Loan amount

Loan term

years

Repayment frequency

Introductory term

years

How long the introductory rate lasts.

Introductory rate

% p.a.

Revert rate

% p.a.

The ongoing rate once the introductory term ends.

Monthly repayment

$3,402.97

At the introductory rate for the first 2 years, then $3,677.10 a month once the rate reverts.

Repayment after the introductory term: $3,677.10
Total interest: $717,177
Total interest at the revert rate throughout: $728,545
Saving from the introductory rate: $11,368

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Estimate only, based on the figures entered and the assumptions listed below. It is not a quote, an offer of credit or personal advice.

Loan balance over time

What you would still owe at the end of each year, with the introductory rate and at the revert rate from the start.

Revert rate throughout
With the introductory rate

Show the figures as a table

Loan balance at the end of each year, at the revert rate throughout and with the introductory rate
Point	Revert rate throughout	With the introductory rate
Start	$600,000	$600,000
End of year 1	$592,956	$591,903
End of year 2	$585,460	$583,349
End of year 3	$577,482	$575,400
End of year 4	$568,992	$566,941
End of year 5	$559,957	$557,938
End of year 6	$550,341	$548,357
End of year 7	$540,108	$538,161
End of year 8	$529,218	$527,311
End of year 9	$517,629	$515,763
End of year 10	$505,295	$503,474
End of year 11	$492,170	$490,396
End of year 12	$478,201	$476,478
End of year 13	$463,336	$461,666
End of year 14	$447,516	$445,903
End of year 15	$430,680	$429,128
End of year 16	$412,763	$411,275
End of year 17	$393,695	$392,276
End of year 18	$373,403	$372,057
End of year 19	$351,808	$350,540
End of year 20	$328,826	$327,641
End of year 21	$304,369	$303,271
End of year 22	$278,340	$277,337
End of year 23	$250,641	$249,737
End of year 24	$221,162	$220,365
End of year 25	$189,791	$189,107
End of year 26	$156,405	$155,841
End of year 27	$120,875	$120,439
End of year 28	$83,063	$82,764
End of year 29	$42,824	$42,669
End of year 30	$0	$0

Introductory rate against the revert rate

The same loan at the revert rate for the whole term shows what the introductory period is worth.

Repayments, total interest and total repaid with the introductory rate and at the revert rate throughout
Measure	With the introductory rate	Revert rate throughout
Repayment for the first 2 years	$3,402.97	$3,690.40
Repayment once the rate reverts	$3,677.10	$3,690.40
Total interest	$717,177	$728,545
Total repaid	$1,317,177	$1,328,545

How this calculator works

An introductory rate lowers the repayment for the first year or two. When it ends, the rate reverts and the repayment is recalculated on whatever is left.

Comparing against the same loan at the revert rate from day one shows what the introductory period is really worth.

Assumptions

Interest is charged at the repayment frequency: the annual rate divided by 12, 26 or 52 each period. A year is taken as 52 weeks or 26 fortnights.
Repayments are principal and interest, made at the end of each period.
During the introductory term the repayment is worked out at the introductory rate over the full loan term.
At the end of the introductory term the repayment is recalculated at the revert rate over the remaining term.
The revert rate does not change after it starts.

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