An offset account is a transaction or savings account linked to your home loan. The balance sitting in it is “offset” against your loan balance, so you’re only charged interest on the difference. For example, if you owe $500,000 and have $50,000 in your offset, you’re charged interest as though you owe $450,000 — while your money stays fully accessible.

Home loan interest is usually calculated daily on your outstanding balance. Because your offset balance reduces the amount interest is charged on, every dollar in there cuts your interest cost for as long as it stays put. Over time that can save you a significant amount of interest and help you pay your loan off years sooner — without locking your money away.

Generally no — your minimum repayment stays the same. The benefit is that a larger share of each repayment goes toward paying down the principal rather than interest, so the loan reduces faster. You get ahead on the loan rather than paying less each month.

An offset account is a separate account you can spend from like a normal bank account — your money stays your money. Redraw lets you pull back extra repayments you’ve already made into the loan. Both reduce interest, but offset funds are usually more accessible and flexible, while redraw can sometimes be restricted, capped, or have conditions attached. There can also be tax differences (see below).

Both reduce interest by a similar amount dollar-for-dollar. The main difference is access and flexibility: money in an offset stays available for emergencies or future plans, whereas money paid directly onto the loan is harder to get back. For many people the offset’s flexibility is the deciding factor, but the right choice depends on your goals — and, for investment loans, your tax situation.

There can be, particularly for investment properties. Money held in an offset account generally keeps the loan’s interest deductibility cleaner than paying down and redrawing, which can affect how much interest you can claim. This is general information only — tax treatment depends on your circumstances, so it’s worth speaking to your accountant or a tax adviser before deciding.

Often they come as part of a packaged or premium loan that charges an annual fee, or the loan may carry a slightly higher rate than a basic no-frills product. Whether it’s worth it depends on how much you keep in the offset — if your balance is large enough, the interest savings usually outweigh the fee. If you’d only ever hold a small balance, a cheaper loan without offset might suit you better.

There’s no fixed threshold, but the more you keep in it and the longer it stays, the greater the benefit. A useful way to think about it is that the interest saved should comfortably exceed any package fee or rate premium on the loan. Even your everyday cash flow — salary landing in the offset and sitting there before bills are paid — chips away at your interest.

Some lenders allow multiple offset accounts linked to a single loan, which can be handy for separating savings goals (for example, an emergency fund, a holiday fund, and everyday spending) while all of them work to reduce your interest. Availability and any extra fees vary between lenders.

Yes — it behaves like a normal everyday account. You can deposit and withdraw, use a linked card, pay bills, and receive your salary into it. Many people run their offset as their main transaction account precisely so every dollar works to reduce interest while remaining fully available.

Sometimes, but it’s less common and may be a partial offset rather than a full 100% offset. Offset accounts are most commonly paired with variable rate loans. If having an offset matters to you, it’s worth checking the specific product’s features before committing.

It tends to suit people who carry a reasonable cash balance, want flexible access to their money, and are happy to run their day-to-day banking through the account. If you’d rarely hold much in it, a lower-rate loan without the offset feature may save you more. The best way to know is to compare the numbers for your own situation.