Should You Self‑Fund Working Capital Or Borrow? A Clear Test

If covering wages, BAS or stock would still be manageable from cash reserves after a bad month, you should usually self‑fund working capital instead of borrowing more. New debt makes sense only when it can be cleared from normal trading within 12–24 months, doesn’t push repayments above about 10–15% of stable revenue, and doesn’t undermine home loan or investment plans.

In other words: if a facility is plugging a one‑off timing gap and you have buffers, borrow carefully. If it’s masking a thin or risky business, walk away and build reserves.

Weigh up the real cost of borrowing against the strength of your cash buffers.

1. What “self‑funding working capital” actually means

Self‑funding working capital means you run day‑to‑day cashflow from:

• Your cash buffer and retained profits
• Tight debtor and stock management
• Controlled owner drawings and dividends

…rather than relying on overdrafts, merchant cash advances or daily‑debit loans for routine expenses.

You might still use facilities occasionally, but the default is: wages, BAS, rent and core stock come from your own cash.

For a refresher on structures and pricing, see Working Capital Basics: Structures, Costs And Safe Limits For SMEs.

When self‑funding is usually better

You’ll typically be better off self‑funding when:

• The cash need is under, say, one month of expenses
• You have at least 3–6 months of expenses in cash reserves
• The issue is timing (late payers, seasonal dip), not profitability
• You also care about keeping strong home loan borrowing power

2. Quick tests: walk away or take the money?

Use these three tests before saying yes to any working capital loan, especially high‑cost options like merchant cash advances.

Test 1: Can normal trading clear this in 12–24 months?

Borrowing for working capital is safer when the facility could be paid back from business profits within 1–2 years without:

• Cutting your own drawings below what you realistically need
• Missing BAS, super or supplier payments

If the answer is no, you’re likely using debt to cover a structural problem, not a timing gap. That’s when to walk away.

See Safe Working Capital Debt: A Simple Leverage Checklist for SMEs for more on these coverage ratios.

Test 2: Do repayments stay under ~10–15% of steady revenue?

As a rule of thumb, keep total working capital repayments under about 10–15% of stable monthly revenue.

If a new facility would push you beyond that band, you’re at risk of:

• Cutting tax and super to make repayments
• Leaning on personal credit cards or home‑loan redraw

Both are red flags for business resilience and future home loan applications.

Test 3: Will this hurt your next property move?

Lenders load business debts with APRA’s 3% buffer when testing home loans. Even if you “clear it later”, they look at:

• Total limits (overdrafts, lines, credit cards)
• Actual repayments and utilisation

If you’re planning to buy, upgrade or refinance property in the next 12–24 months, taking on chunky working capital debt can significantly cut borrowing power. See Will Your Working Capital Facility Kill Your Home Loan Borrowing Power?.

If the debt risks derailing a key home or investment goal, self‑fund instead, even if it means slower growth.