Begin with the amount you actually use
A business line of credit provides access to an agreed credit limit, but the limit is not the same as the outstanding balance. Cost planning should reflect the amount drawn and the time it remains outstanding. A business using a facility occasionally has a different interest pattern from one keeping it fully drawn throughout the year. Other fees and contractual conditions can still apply even where interest is based on the balance used.
When comparing proposals, write down the available limit, expected borrowing pattern and planned source of repayment. Explain whether the facility will bridge customer collections, fund seasonal inventory or support another recurring need. Do not treat revolving access as an unlimited entitlement to borrow indefinitely. The provider's agreement controls draws, payments, reviews and any restrictions. CBL offers educational comparisons and optional enquiries; it does not provide a credit limit or establish eligibility for a particular line of credit.
Identify the rate and its calculation basis
Ask whether the rate is fixed or variable, and whether a variable rate uses a named reference plus a margin. Confirm where that reference can be checked and when changes become effective. Also ask how interest is calculated and charged. A nominal annual percentage alone does not explain whether the agreement uses a particular daily convention, minimum charge or other calculation method. The actual contract and statements are the relevant sources.
Avoid copying a current-rate claim from an undated article into a business budget. A provider's reference rate and margin may differ from another provider's terms. CBL does not publish a universal business line-of-credit rate. For educational planning, you can enter an assumed annual rate into a calculator and clearly label it as an assumption. Check any result against the provider's own example before using it to interpret a real statement or make a financing commitment.
A simple constant-balance interest example
For a basic educational scenario, interest can be estimated as balance multiplied by annual rate multiplied by days divided by the chosen day basis. Assume a constant $20,000 balance, a 12% annual rate, 30 days and a 365-day basis. The estimated interest is about $197.26. This is arithmetic using selected inputs, not a provider quote, a current Canadian rate or a promise about the charges on your account.
The example assumes no balance changes, fees, compounding or minimum interest charge. If the agreement uses a different basis, the result changes. CBL's calculator allows an explicit day-basis assumption so the limitation is visible. This type of estimate helps explain what drives interest, but it cannot recreate a statement containing multiple draws and repayments without the actual transaction history. Ask the provider to clarify each element of its calculation rather than treating a small difference as proof of an error.
Changing balances need a transaction timeline
Suppose a business draws funds to buy inventory, makes another draw for freight and repays part of the balance after customer receipts arrive. A single month-end balance does not describe the amount outstanding during the entire month. Prepare a timeline showing each draw and repayment date. Group periods with the same balance, then apply the agreement's relevant calculation method to those periods. Use the real posting dates when reconciling a statement.
For forward planning, start with expected inventory purchases and collection dates rather than assuming the entire facility is drawn immediately. Test delayed sales and slower customer payments. If the balance stays high longer than planned, interest and available capacity can change. This exercise also highlights whether the proposed revolving facility is covering a temporary gap or a continuing operating shortfall. A line of credit is not a substitute for understanding the source of repayment and the reasons cash is repeatedly unavailable.
Look beyond interest to the full facility cost
Request a complete fee schedule. Depending on the agreement, costs may relate to establishment, administration, review, availability, transactions or other services. Do not assume that every facility has these charges, and do not assume that no charge exists because the headline mentions interest only. Identify which fees apply to your actual proposal and when they are payable. Distinguish a recurring fee from a one-time charge in the budget.
Compare scenarios using both interest and applicable fees. A lightly used facility may have a different total-cost profile from a heavily used one. Where a fee is based on the limit rather than the drawn balance, the distinction is especially important to explain. Ask whether the limit can be adjusted and what conditions apply. Keep calculations tied to the available written terms; unsupported industry-wide rate ranges are less useful than a clear worksheet for the proposals your business can actually consider.
Review the operating conditions
Understand the obligations attached to continued access. Ask about review dates, reporting, security, guarantees and situations in which draws can be restricted or the facility changed. If access depends on eligible receivables or inventory, request an explanation of the relevant borrowing-base rules. Do not infer these rules from another company's agreement. They belong to the provider's specific facility and the business it has assessed.
Make sure someone in the business is responsible for monitoring the facility and maintaining required records. A limit displayed in a banking interface does not replace the underlying terms. Clarify the process for requesting an increase and whether new assessment is required. For material guarantees or security obligations, seek appropriate professional advice. The educational interest calculation addresses only a narrow part of the decision; availability, contractual conditions and the business's repayment capacity can be equally important.
Compare a line of credit with a term loan
A revolving facility may be worth investigating for a repeated short-term gap, while a term loan may be worth considering for a defined expenditure and repayment schedule. Neither category is automatically better. Match the financing structure to the use of funds, expected cash generation and available agreement. Equipment with a long useful life may deserve a different conversation from a supplier invoice due before customer collections arrive.
Compare the expected amount used over time rather than placing a fully drawn term loan beside an almost unused line of credit and declaring one cheaper. Include applicable fees and the consequences of changes to access. BDC's working-capital information describes its own term-loan approach and is not evidence that it offers a revolving business line of credit. Editorial sources and provider products must be kept distinct. CBL's comparison resources help frame questions without promising that a particular provider or product will be available.
Prepare an informed enquiry
Before submitting an enquiry, summarize the size and duration of the cash gap, how often it occurs, the requested limit and the source of repayment. Explain any existing financing and whether the need concerns inventory, receivables or another operating expense. A simple cash-flow calendar can make this request more useful than a broad statement that the business needs credit. Ask only for a facility you can describe and compare coherently.
Use the CBL calculator for illustrative interest scenarios, then obtain the provider's actual rate, fees and terms. Keep any assumed rate clearly separated from a current offer. Canada Business Loan is a marketplace and referral platform, not a lender. An optional enquiry does not guarantee approval or a credit limit. The next useful step is a provider review based on accurate business information and explicit consent, followed by careful assessment of the agreement and its effect on operating cash.