Business Line of Credit Sizing for the EOFY Squeeze (2026)
EOFY Business Line of Credit Sizing | Switchboard Finance
Business Owners Hub
Line of Credit · Limit Sizing · EOFY 2026
Business Line of Credit Sizing for the EOFY Squeeze (2026)
The 7-week EOFY window decides whether your facility carries you through August. Here is how underwriters actually size the limit, how the stress test changes the number, and why the call you make in May is the one that matters.
Quick Answer
A business line of credit limit is what the underwriter agrees to make available, sized against turnover and stress-tested as fully drawn. The limit set today decides August cashflow capacity, so the call needs to be made before EOFY pressure compresses the file. Talk to a broker about line of credit sizing early.
The 7-week EOFY window is a sizing window, not a rate window
The Reserve Bank of Australia publishes the cash-rate environment that frames every facility you take on, but for a self-employed business owner heading into 30 June, the lever that actually changes August cashflow is not the rate. It is the limit. From the underwriter's seat, the question on a business line of credit file in May and June is not "what will this cost." It is "how much capacity can we justify on these numbers, today, before the next BAS lands."
That gives you a 7-week EOFY window where the limit you negotiate is the limit the facility carries forward. Get the sizing right and the facility absorbs the BAS, super and ATO event stack in July without strain. Get it wrong and you are back at the lender's door in August asking for an unscheduled limit increase, which reads to underwriting as a different kind of file altogether.
How a line of credit limit is actually calculated
Lenders do not pick a limit out of the air. The math runs in four steps, and each one moves the final number. The first anchor is turnover, sized against the last 4 BAS or 12 months of trading. The second is the working capital cycle, the gap between when you invoice and when you get paid. The third is the stress test, where servicing is run as if the limit is drawn in full. The fourth is the buffer, the headroom the lender wants left over once everything else is loaded onto the file.
Sized against turnover, indicative ranges vary by lender, but the working logic is consistent. A clean file with stable BAS, low existing drawn debt, and current ATO accounts moves faster through the limit decision. A file with lumpy revenue, recent missed payments, or unresolved ATO balances takes longer and frequently lands at a smaller number. The first read on a sizing file is the rhythm of the cashflow, not the headline turnover figure.
Faster limit decision
- 4 consecutive BAS lodged on time
- Existing drawn debt under control
- ATO accounts current or on a paid plan
- Director loan accounts clean
- Last 90 days of bank data shows working cycle, not stress
Slower limit decision
- BAS gap or late lodgement in last 12 months
- High drawn balance across existing facilities
- Outstanding ATO debt with no payment plan
- Director loan moving in unexplained directions
- Recent month showing repeated dishonours
The card pair above is not theoretical. The file on the left, going by patterns this batch, lands a limit decision in roughly half the file time of the one on the right, and at a higher number, with the difference almost entirely sitting in BAS rhythm and ATO position rather than turnover scale.
The stress test that decides your real number
Once the indicative limit is on the table, servicing is run on the assumption that the entire facility is in use. This is the part of the math owners most often miss. A $500k indicative limit is not serviced against the drawn balance you expect to carry, it is stress-tested as fully drawn (typically) at a buffered rate above the headline pricing. If the business serviceability does not hold at that fully-drawn buffered number, the limit comes down until it does.
| Stress-test input | What lifts the serviced number | What reduces it |
|---|---|---|
| Turnover anchor | 4 BAS consistent and lodged on time | Gap or material drop in last 12 months |
| Drawn balance assumption | Existing limits utilised under 30% | Persistent draw above 70% of available limits |
| Buffered rate position | Strong gross margin and clean opex line | Thin margin once the buffer is applied |
| ATO position | Current accounts or paid plan meeting on time | Outstanding debt with no engagement |
| Director loan accounts | Clean and well-explained on the file | Moving in unexplained directions |
Two things change the stress-test outcome more than anything else. The first is how much of the existing debt stack is already drawn, because a fully-drawn buffer on a clean balance sheet is not the same conversation as a fully-drawn buffer on a balance sheet already carrying a working capital facility, an equipment lease and a director's loan. The second is the choice between treating the new facility as additional capacity or as a refinance of cluttered shorter-term debt. The refinance path often unlocks a larger workable limit because the servicing line gets cleaner before the stress test is run.
Why the limit you set in May decides August
The limit decision feels operational. It is actually strategic. Drawn balance interest only (illustrative) means you do not pay for unused capacity, so there is no penalty in negotiating headroom you will not draw against in July. The penalty arrives the other way, when the limit set in May turns out to be too tight for the BAS, super, and ATO load that hits in late July and August, and the lender's response to a mid-year limit increase is slower than the response to a clean facility approval in the first place.
The 7-week EOFY window is the cleanest window of the year for this conversation. Year-end financials are not yet in play, the latest BAS rhythm is visible to the lender, and the working capital cycle has not yet been disrupted by July funding events. After 30 June, the file looks different. Last 12 months becomes last financial year. The conditional approval pathway becomes a different conversation once the year is closed and the new figures are being prepared.
Limit review at 6 to 12 months (varies by lender) means the May decision is not permanent. It is, however, the number the facility carries into the heaviest cashflow weeks of the year. The owners I see most comfortable through July and August are the ones who treated the May limit conversation as a capacity-planning exercise, not a cost-of-funds exercise. If the choice is to start that conversation, the business owners hub walks through where a line of credit fits relative to working capital loans and other senior cashflow facilities, and the business loan definitions guide sets the language a lender will use back at you.
A business line of credit is sized against turnover, stress-tested as fully drawn, and reviewed at 6 to 12 months. In the 7-week EOFY window the limit decision matters more than the rate, because the limit set today decides August cashflow capacity. Clean BAS, controlled drawn debt, and current ATO accounts move the limit decision faster and frequently larger. A prepared loan pack compresses the file time further still.
Key takeaway: Negotiate the EOFY line of credit limit on capacity, not need, because the limit set in May is the limit the facility carries into August.Frequently Asked Questions
A business line of credit limit is calculated by sizing turnover against the working capital cycle, then stress-testing servicing as if the entire limit is fully drawn. The underwriter typically anchors to the last 4 BAS or 12 months of turnover, applies an indicative ratio that varies by lender, and tests whether the business can service the facility at a buffered rate. See our credit limit glossary entry for the underlying concept and how it differs from a drawn balance.
How big a line of credit your business can get depends on turnover, consistency of cashflow, and serviceability when the facility is treated as fully drawn. Indicative sizing typically lands at a percentage of annual turnover, with the exact ratio varying by lender. The line of credit vs working capital loan comparison walks through how lenders read the same numbers differently across facility types.
The difference between a credit limit and a drawn balance is that the limit is the maximum the lender will allow you to access, while the drawn balance is what you have actually used. Interest is charged on the drawn balance only (illustrative), but servicing is stress-tested as fully drawn. Our credit limit glossary covers how this changes the real cost of carrying a facility versus the headline rate.
How long it takes to set up a business line of credit depends on lender, file completeness, and security. Approval typically lands in 8 to 14 days through major banks with a clean file (indicative), with non-bank specialists often faster where the document set is in order. The cashflow facility conditional approval explainer walks through what speeds the senior cashflow path up and what slows it down.
A business line of credit typically needs to be reviewed at 6 to 12 months (varies by lender), with the lender refreshing servicing data and reconfirming the facility remains appropriate. Limit reviews can move up, down, or stay flat depending on turnover trends and how the facility has been used. See servicing for what the lender re-checks at review and why a facility that has run hot at the limit reads differently to one used in cycles.
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