What is principal and interest vs interest only?
Principal and interest (P&I) requires repayment of both the loan balance and accrued interest, while interest-only (IO) payments cover only the interest charged, leaving the principal unchanged.
These two repayment structures determine how your regular payments are split between reducing the loan balance and covering the interest charge. With principal and interest repayments, each payment is divided between both components, steadily reducing the amount owed. With interest-only repayments, your payments cover only the interest accruing on the loan, so the principal remains the same.
Investment lending in Sydney often offers both options, particularly for investment property loans. The mechanical difference matters because it affects your cash flow and the total interest paid over the loan term. Principal and interest payments are higher monthly but build equity immediately and fully repay the loan by maturity. The team-only payments are lower each month but do nothing to reduce what you owe. Most interest-only loans have a set term (commonly five to ten years), after which you must either refinance or switch to principal and interest repayments.
Investment property borrowers choose interest-only when cash flow is tight or during renovation phases, since lower repayments preserve liquidity. However, lenders typically restrict interest-only terms and may require higher deposits or stronger serviceability to qualify. The choice depends on your strategy, income position, and how long you plan to hold the property.