Business Line of Credit and Overdraft in Canada: How They Differ
In Canada, a business line of credit and an overdraft are both ways to borrow money you’ll pay back, rather than a fixed lump sum you take once. That’s where the similarity stops being useful, because the two work differently in practice, and confusing them can leave a new business owner with the wrong tool for the wrong problem.
This is a different question from where a term loan comes from — banks, credit unions or the federal small business financing programme — which is its own topic. This one is about the tool for day-to-day cash flow rather than startup capital.
A loan versus a line of credit
A loan is a fixed amount, disbursed once, repaid on a set schedule with interest calculated on the full balance from day one. A line of credit is closer to a standing offer — the lender approves a maximum limit, and you draw against it as needed, paying interest only on what you’ve actually borrowed rather than on the full approved amount. For a business with uneven, unpredictable cash flow, that difference matters enormously: a line of credit lets you cover a short gap without paying for money you’re not using.
How a business overdraft actually works
An overdraft is attached directly to a business chequing account, letting the account go negative up to an agreed limit rather than bouncing a payment. It’s typically used for very short-term timing gaps — a supplier payment due before a customer’s payment clears, for instance — rather than as an ongoing source of working capital. Overdrafts tend to carry a smaller limit than a dedicated line of credit and are meant to be cleared quickly, not carried as a running balance. In short, how does a business overdraft work in Canada? As a buffer against timing gaps rather than a standing source of working capital.
Where a line of credit is the better fit
A revolving line of credit suits recurring, somewhat predictable gaps — inventory purchases ahead of a busy season, payroll during a slower month, or bridging the time between delivering work and actually being paid for it. Because you only pay interest on what’s drawn, it’s a more efficient tool than a loan for exactly this kind of on-and-off need, and it doesn’t require reapplying every time a gap comes up.
The seasonal pattern
So how do seasonal businesses use a line of credit? A business with a strong season and a quiet one — tourism, agriculture, retail with a holiday peak — often draws heavily on it in the lean months to cover fixed costs, then pays it back down once the busy season’s revenue arrives. Used this way, it functions as a cash-flow smoothing tool rather than debt in the ordinary sense, provided it’s actually paid back down each cycle rather than allowed to grow.
How much working capital is enough?
There’s no single figure that applies across businesses — it depends on the specific costs a business needs to carry through its leanest stretch, and that’s a calculation particular to each business’s own numbers rather than something a general article can state as a rule. A conversation with an accountant, working from your actual cost structure, will give you a far more useful answer than any general rule of thumb.
What to actually check before applying
Interest rates, limits and qualifying criteria for both products vary by lender and change over time, and a newcomer without an established Canadian credit history should expect more limited options at first than a business with years of local banking behind it. Compare current offers directly from at least two lenders — a major bank and a credit union — rather than assuming either type of product costs the same everywhere.
Cape2Canada’s guide, Your First 90 Days in Canada, covers the credit-building groundwork that makes qualifying for either of these easier down the line.