Searches for “mortgage stress” and “mortgage help” have hit record highs this year — higher than the 2008 financial crisis, higher than the depths of COVID. If you’ve ever quietly Googled what a term in your loan contract actually means, you’re not alone, and you’re not behind. Most of these words are never actually taught anywhere. You’re expected to just know them.
So here’s the plain-English version of the terms people are searching for most right now — no jargon explaining jargon, just what they actually mean and why they matter.
Mortgage
A loan used to buy property, where the property itself is the security for the loan. If repayments stop, the lender has the legal right to take the property back and sell it to recover what’s owed. That’s the whole concept in one sentence — everything else about mortgages is really just variations on this.
Interest
The cost of borrowing money, expressed as a percentage of what you owe. It’s what the lender charges you for the privilege of using their money now rather than saving up and paying cash later. Everything else on this list — interest rates, comparison rates, compound interest — is really just a variation on this one basic idea.
Interest Rate vs. Comparison Rate
The interest rate is just the cost of borrowing the money itself, expressed as a percentage. The comparison rate rolls in most of the fees and charges on top of that rate, giving you a single number that reflects the loan’s real cost. This is exactly why two loans can advertise similar interest rates but have noticeably different comparison rates — one has quietly stacked more fees underneath it. Always compare the comparison rate, not the headline number.
Fees and Charges
The extra costs layered on top of the interest rate itself — things like an application fee, an ongoing account-keeping fee, or a fee for paying the loan off early. Individually these can look small, which is exactly why they’re worth checking carefully: a loan with a slightly lower interest rate but higher fees can end up costing more overall than one with a slightly higher rate and minimal fees. This is precisely what the comparison rate is designed to catch.
Repayment
The regular payment you make back to the lender, covering both a portion of what you originally borrowed (the principal) and the interest charged on it. Most home loans are set up as “principal and interest” repayments, meaning each payment chips away at both. Some loans offer an “interest only” period, where repayments cover just the interest for a set time — useful in some situations, but worth knowing the principal isn’t shrinking at all during that period.
Default
Failing to meet the terms of your loan — most commonly, not making repayments as agreed. It’s not the same as being a day late once. A default is a genuine, ongoing failure to pay, and it’s what triggers the more serious consequences: fees, credit report damage, and ultimately the risk of losing the secured asset.
Compound Interest
Interest calculated not just on what you originally borrowed, but on the interest that’s already accumulated on top of it. This is exactly why debt can grow faster than people expect — each period’s interest becomes part of the balance that next period’s interest gets calculated on. It works the same way in your favour with savings and investments, which is the one piece of good news buried in this term.
Lenders Mortgage Insurance (LMI)
This is the one that catches people out the most, because the name makes it sound like it protects you. It doesn’t. LMI protects the lender if you default on a loan taken out with a smaller deposit (typically under 20%). You’re the one who pays the premium, but the payout, if it’s ever needed, goes to the bank, not to you. It’s a genuinely reasonable trade-off if it gets you into a property sooner — just go in knowing exactly who it’s actually protecting.
Creditor and Debtor
A creditor is owed money. A debtor owes money. They get mixed up constantly because they sound similar, but the easiest way to keep them straight: a creditor extends “credit,” a debtor carries “debt.” If you have a mortgage, your bank is the creditor and you’re the debtor on that specific loan.
Why This Actually Matters Right Now
None of these terms are complicated once someone actually explains them. The confusion isn’t a reflection of your financial literacy — it’s a reflection of how rarely anyone bothers to explain this stuff in plain language before handing you a 40-page loan contract to sign.
If you’re feeling the pressure of rate rises right now, understanding these terms properly is genuinely the first step to having a real conversation with your lender about your options — not just nodding along while they explain something you already half-understood.
