The interest rate is only part of the price. Budget for a valuation fee, bond registration and conveyancing costs, the once-off initiation fee and the monthly service fee that every credit agreement carries. The initiation and service fees are capped under the National Credit Act, but attorney and Deeds Office charges are not, and on a large registration they add up quickly. Ask for the full cost breakdown in writing, and ask specifically whether an early settlement penalty applies if you repay ahead of schedule.
Three situations where the answer should be no
Walk away when the money is meant to cover routine living costs: turning groceries and petrol into twenty-year secured debt is how over-indebtedness becomes permanent. Walk away when the budget only balances at today's prime rate, because prime-linked instalments rise the moment the Reserve Bank moves. And walk away when the amount is small relative to the setup costs, because a R60 000 need does not justify a full bond registration. If repayments are already unmanageable, debt counselling under the National Credit Act is the route designed for that situation, not another loan secured by the house.
Used well, released equity is genuinely productive: a renovation that raises the property's value, a qualification that raises your income, or consolidating credit priced far above prime into one cheaper instalment. Those uses leave you better off. Anything that is consumed within a year rarely does.