See the monthly repayment, total interest and total cost of borrowing for a new roof with a personal loan or similar finance.
Use this calculator to compare ways of paying for a new roof: an unsecured or secured personal loan, a home loan top-up or redraw, or a contractor's finance offer. Enter the amount you would borrow, the annual interest rate, the term and any upfront fees.
How it works. The monthly repayment uses the standard amortising loan formula with monthly compounding: repayment = P × r ÷ (1 − (1 + r)^−n), where P is the amount, r the monthly rate and n the number of months. Total paid = repayments × n + upfront fees.
Worked example (illustrative). $25,000 over 5 years at 11.5% a year with a $250 fee gives a repayment of about $550 a month, total interest of about $8,000 and a total cost of about $33,250. The same $25,000 added to a home loan at a lower rate but repaid over 25 years can cost more in total interest, even though the monthly amount is much smaller.
Limits. Rates are examples, not offers. The calculator ignores monthly account fees, early repayment fees and rate changes. Compare the comparison rate on any credit offer, and read the finance guide before signing up to finance arranged at the door.
Worked Quotes and Checklists
The main ways Australians pay for a roof replacement, what each costs over time, worked repayment examples, and what to check before signing any finance offer.
