Motley Fool Money Mailbag, incl: The pros and cons of an interest-only mortgage? March 8, 2026
10 snips
Mar 7, 2026 A lively mailbag delves into the trade-offs of interest-only mortgages and how leverage fits personal risk tolerance. Currency questions spark a debate on investing overseas while the Australian dollar is strong and when to hedge. A wide-ranging monetary chat covers how a shift to sound money or Bitcoin would affect mortgages, money roles, and the practical limits of rapid adoption.
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Use Interest Only Only If You Can Deploy Cash Better
- Consider paying interest only if you can earn more with the freed cash than your mortgage rate and you have an emergency fund in place.
- Andrew Page keeps debt for investment carry, pays more than required when comfortable, and stresses sleep-at-night risk tolerance.
Match Leverage To Your Sleep At Night Level
- Make decisions that let you sleep at night; emotional comfort is a valid input when choosing leverage levels.
- Andrew Page says his family keeps lower home leverage for emotional and practical reasons despite being comfortable taking other loans.
Interest Only Changes The Math Not Just Cash Flow
- Interest-only loans lower monthly repayments but raise total interest costs and change the present-value math of principal repayments.
- Scott Phillips warns the interest bill compounds against you while principal remains, so model wage growth versus house price and loan servicing over time.
