An ROI-first framework for evaluating business debt. Equipment that earns its keep, expansion working capital, and the patterns that compound risk — separated by math, not by moralizing.
Debt for a small business is a tool, not a moral question. Good debt funds a use that returns more than its all-in cost. Bad debt funds operating losses or stacks on existing distress. The same dollar at the same price can be good or bad depending on what it funds — run the math, not the moralizing.
Brian's video above is his pushback against the all-debt-is-bad school of personal finance. This written companion translates the same idea to the SMB context. The question for a business owner is never "is debt good or bad" in the abstract. It's "does this specific dollar of debt, at this specific cost, fund a specific use that returns more than it costs?" Everything else is moralizing.
For any debt decision, four numbers matter:
1. All-in cost of capital, expressed as either APR or total dollars-of-interest over the term. Not the "rate" — the rate plus origination, plus closing, plus the time-value impact of the repayment schedule. 2. Expected incremental cash flow the borrowed dollar will produce, over the same timeframe. 3. The downside path — what happens if the cash flow comes in 20% below plan? 50% below? 4. *What's the cost of not doing this* — would the business be better, worse, or unchanged without the debt-funded action?
Debt is good when (2) materially exceeds (1) over a defensible time horizon, when (3) is survivable, and when (4) implies a real opportunity cost.
Debt is bad when (1) exceeds (2), when (3) is catastrophic, or when (4) is roughly zero (i.e., the debt funds something the business didn't really need).
A $45K equipment loan at 12% APR to buy a CNC machine for a contract shop. The new machine adds capacity, the operator is already in place, the shop has signed work that requires the additional capacity. Incremental gross profit is $36K/year on a 5-year machine life. Cost of capital is roughly $15K over the loan life. ROI is favorable, downside is "the machine has resale value at 60–70% of cost in year 2 if the work slows." Good debt.
A $120K SBA 7(a) at 10.5% APR to acquire the lease and equipment of an adjacent café when the seller is exiting. Acquired location adds $180K/year in revenue at ~22% margin — $40K of incremental annual cash flow. Loan service is roughly $1,600/month over 10 years. Five-year IRR comfortably exceeds the loan cost. Good debt.
A $30K revenue-based advance at 1.28 factor over 8 months to fund inventory for a known seasonal sales period. Inventory turns at a 38% gross margin; expected gross profit from the inventory is roughly $40K. Cost is $8,400 (1.28 × $30K – $30K) over the same 8 months. ROI is positive, the use is discrete and time-bound, and the repayment schedule aligns with the revenue the inventory is funding. Good debt for that specific use, even at MCA pricing.
A $250K bank line of credit at prime + 4 for a contractor with seasonal AR. Drawn during slow months, repaid as receivables come in. Total annual interest expense is roughly $7,000 on average $80K outstanding. The line lets the business take on jobs it would otherwise have to decline for cash flow reasons; incremental revenue per year is meaningfully larger than the interest cost. Good debt as long as the line is used as designed and not as permanent working capital.
A $40K MCA at 1.41 factor over 9 months to "cover payroll for the next few months." The implied capital cost is $16,400 plus the structural strain of daily ACH debits. The cash flow gap isn't bridging a defined revenue event; it's plugging a leak. The business doesn't have a revenue plan that will catch up with the daily debits. Within 60 days the owner is stacking a second MCA to keep the first one current. Classic bad debt — the use isn't producing returns; the cost is high; the downside is catastrophic. See our refinancing MCA into term loan playbook for the specific exit pattern when this has already happened.
A $25K personal credit card balance carried at 27% APR to fund a struggling business. Interest expense alone is roughly $6,750/year, none of it tax-deductible at the personal-card level. The business isn't producing the cash flow to cover the cards. The owner's personal FICO tanks from utilization, which closes off future business funding access. Bad debt and bad structure — personal credit cards are the wrong instrument for business funding even when the business is healthy.
Stacking a second MCA on top of an existing one. The math gets brutal fast. Two 1.35-factor advances with overlapping daily debits often consume 25–40% of daily deposits before any operating cost. The second advance is by definition not funding something profitable enough to outrun the daily debit; it's funding the daily debit of the first advance. See our second-position MCA explainer for the structural reasons stacking compounds risk.
Borrowing $100K to buy out a co-founder who isn't blocking growth. The business doesn't gain incremental cash flow from the buyout; the equity simply rebalances. Service cost on the debt comes straight out of operating cash flow without an offsetting revenue gain. Sometimes the right thing for non-financial reasons; rarely good debt in the ROI sense.
A few patterns owners convince themselves are good debt that often aren't:
See our line of credit vs MCA decision framework and our short vs long term financing resource for the product-match angle on these mistakes.
The practical implication for an owner about to apply: be ruthless about the use of funds before you go through the application. Some questions to answer in writing before applying:
1. What specifically does this money fund? A line item, a piece of equipment, a discrete project — not "growth" or "operations." 2. What's the incremental cash flow this money produces, monthly, over what timeframe? 3. What's the all-in cost of capital, expressed in dollars? Compute the dollar amount, not the rate. 4. If revenue comes in 30% below plan, can the business service this debt without breaking? 5. What's the next-best alternative to this use of funds? If there's a cheaper or faster path that doesn't involve borrowing, take it.
If the answers to those questions point at a real opportunity with an honest payback, it's likely good debt. If the answers are vague or the downside is unsurvivable, the most useful thing this article can do is keep you from signing.
We're a funding platform. We don't tell you whether to take a specific debt — that's your decision after running the ROI math. What we do is take in your application and route it to the lender partner most likely to fund the right product for the use you've defined.
If you've run the math and the answer is "yes, this debt funds a use with a positive return," start an application. If you're still working through the decision, run the funding calculator to see which products typically fit your file, and review the short-vs-long-term financing resource to match product structure to use of funds.
For deeper reading: our step-by-step small business loan guide, the term loan vs MCA resource, and the APR vs factor rate explainer all cover the cost-of-capital math you need to run before signing anything.
Is all debt bad for a small business? No. Debt that funds a use with a positive expected return greater than its all-in cost is a productive tool. The question is always specific — this dollar, this cost, this use — not abstract.
Is an MCA always bad debt? No. An MCA at 1.28 factor over 8 months funding inventory for a known seasonal sales period at 38% gross margin can be perfectly rational. The same MCA funding ongoing operating losses is ruinous. The product is neutral; the use determines whether the math works.
How do I tell good debt from bad debt before signing? Write down four numbers: all-in dollar cost, expected incremental cash flow, downside scenario survivability, and the cost of not doing this. If you can't fill in those four numbers with specifics, you're not ready to sign.
Does paying off "bad debt" with a business term loan turn it into good debt? Sometimes. Consolidating high-cost short-duration debt into a lower-cost amortizing term loan can be a smart structural move if the underlying use of funds that produced the original debt is fixed. If it isn't, you've just repackaged the problem with more runway.
If you're going deeper on this topic, these are the next stops:
No. Debt that funds a use with a positive expected return greater than its all-in cost is a productive tool. The question is always specific — this dollar, this cost, this use — not abstract. Run the 4-number ROI test before signing anything.
No. An MCA at 1.28 factor over 8 months funding inventory for a known seasonal sales period at 38% gross margin can be perfectly rational. The same MCA funding ongoing operating losses is ruinous. The product is neutral; the use determines whether the math works.
Write down four numbers: all-in dollar cost, expected incremental cash flow over the term, downside scenario survivability, and the cost of not doing this. If you can't fill in those four numbers with specifics, you're not ready to sign. Use the Good Debt Calculator above to run the math.
It can. A term-loan consolidation that drops your effective APR from 50%+ to 22-35% and replaces daily MCA debits with a single monthly payment is one of the strongest term-loan use cases. The new debt is 'good' to the extent the cash-flow improvement is material and survivable.