Both a personal loan and a personal line of credit can fund the same purchase, but they are structured very differently. A personal loan gives you a fixed lump sum, a fixed rate and a fixed repayment schedule. A line of credit gives you an approved limit you can draw from, repay and redraw as needed. Which one actually suits you depends less on the rate and more on how predictable your spending is.
How a personal loan works
A personal loan pays out a single, fixed amount upfront, which you repay in equal instalments over an agreed term - typically one to seven years. The rate is usually fixed for the life of the loan, so the total cost is known from the day you sign.
- Fixed repayment makes budgeting straightforward
- Total cost is known upfront, for the full term
- Rate is often lower than a comparable line of credit
- Once drawn, you cannot access further funds without reapplying
- Early repayment or exit fees may apply on some products
- Not suited to costs that arrive gradually or unpredictably
How a line of credit works
A line of credit gives you an approved limit that you can draw on as needed, repay, and draw again - similar in principle to a credit card, but usually with a larger limit and a different rate structure. You generally only pay interest on the portion you have drawn, not on the full approved limit.
- Draw only what you need, when you need it
- Interest is charged only on the drawn balance
- No need to reapply each time a new cost comes up
- Rates are usually variable and often higher than a personal loan
- Flexible repayment can mean the balance lingers longer than planned
- The full approved limit may be counted as a liability by other lenders
The real difference: predictability vs flexibility
A personal loan suits a single, known cost - a car, a medical procedure, or consolidating existing debts into one fixed repayment. A line of credit suits costs that arrive in stages or unpredictably - ongoing renovations, gaps between irregular income, or having a buffer available without paying for funds you are not using yet.
The trade-off is discipline. Because a line of credit does not force a repayment schedule the way a personal loan does, it is easy for the balance to sit around longer than intended, quietly accruing interest.
Quick comparison
| Personal loan | Line of credit | |
|---|---|---|
| Access to funds | One lump sum, paid once | Draw, repay and redraw as needed |
| Rate | Usually fixed | Usually variable |
| Repayment structure | Fixed instalments | Flexible, interest on drawn balance |
| Best suited to | A single, known expense | Ongoing or unpredictable costs |
| Biggest risk | Extending the term too far | Balance lingering without a repayment deadline |
If you are weighing this up alongside business cash flow rather than personal spending, our guide to invoice finance vs. line of credit vs. overdraft covers the equivalent decision for a business.
The takeaway
Neither option is automatically cheaper or better - a personal loan trades flexibility for certainty, and a line of credit trades certainty for flexibility. The right choice comes down to whether you are funding one known cost or an ongoing, less predictable need, and how confident you are that you will repay a flexible facility as quickly as a fixed one.
Finance is subject to lender approval, lending criteria, terms, conditions, fees and charges. The information in this article is general and does not take into account your personal or business needs.
Last reviewed: 9 September 2026. This article was prepared using information available from the Australian Securities and Investments Commission and Moneysmart. This content provides general information only. It should not be treated as personal financial, tax, legal or credit advice.
Frequently asked questions.
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Not necessarily. A line of credit often carries a higher variable rate than a fixed-term personal loan, and you only pay interest on what you draw. Whether it costs less depends on how much you actually use and how quickly you repay it, not just the headline rate.
Generally no. A personal loan pays out a fixed amount once, on a fixed repayment schedule. A line of credit is revolving - you can draw, repay and draw again up to your approved limit without reapplying, which a standard personal loan does not offer.
A personal loan usually suits a single, known expense - a car, a wedding, debt consolidation - because the fixed term and fixed repayment make the total cost predictable from day one.
A line of credit tends to suit costs that come up periodically or unpredictably, such as ongoing renovations, medical costs, or covering gaps between irregular income, since you only draw and pay interest on what you actually need at the time.
Lenders generally assess your full approved limit as a liability when you apply for other credit, even if you have not drawn on it. This can affect borrowing capacity for something like a home loan, which is worth considering before taking a larger limit than you need.
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