WhatIf
Pay down the mortgage, or invest?
Compare putting money on the mortgage against investing it, over the years ahead, with an honest sensitivity range instead of a single winner.
“Should I put spare money on the mortgage or invest it?”
- See both paths side by side, not a green “winner” — the honest answer depends on a return no one can promise.
- A sensitivity range shows how the picture shifts if the investment return is higher or lower.
- Interest avoided is certain; investment growth is illustrative — the comparison keeps them apart.
Model the trade-offFree, no account needed.
WhatIf gives illustrative, educational scenario estimates from the figures you provide. It is a decision simulator, not personalised financial advice, and it does not recommend a specific product. See how the numbers are worked out.