Why this calculator is different
Most debt consolidation calculators show you one number: how much your monthly repayments drop. That number is almost always flattering, and on its own it is close to useless.
Rolling a four-year car loan and a credit card into a twenty-four year mortgage will cut what you pay each month. Of course it will — you have just given yourself two decades longer to pay it off. What it often does at the same time is increase what that debt costs you in total, sometimes by a great deal, because a lower rate over a much longer period can still add up to more interest.
So this one shows three outcomes side by side, and the third is usually the one worth having.
Leave it as it is
What you are paying now across everything, when each debt clears on its current repayments, and what the interest adds up to from here.
Roll it in and pay the new minimum
Everything folded into the home loan at the home loan rate, over the years you have left. Your monthly outgoing drops. Watch what happens to the total interest figure.
Roll it in and keep paying what you pay now
Same consolidation, but you don't take the monthly saving. You keep directing the same total at the loan. This is where consolidation genuinely works — lower rate, same effort, and the whole thing clears years early.
The part that decides it
Option three only works if the repayment is one you can actually sustain, month after month, once the pressure of the old debts is off. That is a question about your cashflow, not your loan, and it is the one thing this calculator cannot see.
It is also the most common reason consolidation goes wrong. The debts get cleared, the monthly pressure lifts, and within two years the credit card is back where it was — except now it sits on top of a bigger mortgage. If that pattern sounds familiar, the numbers are not the problem and a bigger loan is not the fix.
The Cashflow Drilldown exists for exactly that question.
What it assumes
- All repayments are monthly, made on time, with nothing missed.
- Every interest rate you enter stays the same for the whole period. Rates move, and that changes every figure shown.
- Your current repayment on each debt stays flat until that debt clears. Credit card minimums actually fall as the balance drops, which makes real-world card payoff slower and more expensive than shown here.
- The consolidated loan is principal and interest at your current home loan rate over your current remaining term. A lender may offer a different rate or reset the term to thirty years, which would change the result significantly.
- No costs are included — no break fees, discharge fees, application or settlement fees, valuation, or lenders mortgage insurance if consolidating pushes you past 80% of the property value. These can be substantial and they can change which option wins.
- Consolidating unsecured debt into a mortgage converts it to debt secured against your home. That is a genuine change in risk and no calculator can quantify it for you.
- Everything is rounded for display.
Important
The results from this calculator should be used as an indication only. Results do not represent either quotes or pre-qualifications for a loan. The specific details of your loan will be provided to you in your loan contract. It is advised that you get in touch with us before taking out a loan so that we can provide you with advice that is tailored to your situation.
This calculator does not state or offer any interest rate. Every figure it produces comes from numbers you enter yourself. It is not a recommendation to consolidate, and it is not credit assistance. Terms, conditions, fees and charges may apply. Normal lending criteria apply. Rates are subject to change. Approved applicants only.