Understanding cost of capital.
In this guide, cost of capital refers to the economic cost and operating impact of obtaining commercial financing. In corporate finance the term can also carry a broader meaning that includes the cost of both debt and equity; that is a different subject. This one matters to every operating business: different financing structures measure and express cost differently, and no single number compares them all.
Every financing structure contains the same economics
A line of credit, a term structure, an SBA-supported transaction, an equipment agreement, a factoring facility, and a working capital structure price themselves in different languages. Underneath the languages, every one of them can be read through the same questions: how much capital is available, how much is deployed, how much cash actually arrives, how the cost is calculated, how many dollars may ultimately be paid, for how long, on what rhythm, against what collateral, with what flexibility, and toward what business objective.
The question is never which financing has the smallest number. It is what the complete economic effect of the structure is on the business. This guide builds that reading skill one structure at a time.
Cost, payment burden, and capital availability are different questions
Most financing confusion collapses three separate questions into one. Keeping them apart is the single most useful habit in evaluating capital.
Cost is what obtaining and using the capital economically costs: interest or factor-based repayment, fees, discount charges, facility and closing costs, and prepayment economics.
Payment burden describes how scheduled repayment interacts with the business's operating cash flow while the financing is outstanding: the size of each payment, its frequency, and its relationship to the rhythm of collections.
Capital availability is how much financing is actually usable, and it hides more distinctions than any other question: an approval amount is not a funded amount, a credit limit is not a draw, and gross proceeds are not net proceeds. As a simple illustration of that last distinction: an approved $100,000 financing with an illustrative disclosed fee of $2,000 deducted at funding delivers $98,000 of net proceeds. Gross funding describes the size of the transaction; net proceeds describe the usable cash that reaches the business. Not every financing product deducts fees from proceeds, which is exactly why the question is worth asking.
A worked example: reading a factor rate
Factor-based working capital is one structure among many, and its pricing is the most frequently misread, so it earns the one fully worked example in this guide.
- Funded amount
- $75,000
- Illustrative factor rate
- 1.18
- Contractual repayment
- $88,500
- Illustrative duration
- 12 months
A factor rate is a contractual repayment multiplier: $75,000 × 1.18 = $88,500. It is not an interest rate. A 1.18 factor does not mean 18% APR, 18% annual interest, 18% monthly cost, or 18% of revenue. The factor establishes the repayment calculation; it does not by itself express the annualized cost of the financing.
Illustrative financing example only. This is not an offer, indication of available terms, pricing range, or representation of what any particular business may qualify for. Actual terms vary by product, business profile, underwriting, transaction structure, capital provider, and market conditions.
Cadence is a separate concept from the factor. Depending on the financing product and agreement, the $88,500 contractual repayment in this illustration may be scheduled monthly, weekly, or on scheduled business days. The factor explains the repayment amount; the cadence explains how repayment reaches the business's cash flow. Certain revenue-based structures may also contain adjustment or reconciliation provisions, and certain structures involve the purchase of future receivables rather than conventional interest-bearing debt; the agreement controls.
Payment burden can then be illustrated, carefully. Spreading the $88,500 evenly across twelve months gives a $7,375 monthly equivalent. Against an illustrative business collecting $150,000 of monthly revenue, that is an illustrative payment-to-revenue measure of approximately 4.9%. That figure is not the factor rate, not an interest rate, not an APR, and not a qualification threshold of any kind. It offers one simple view of burden, and actual repayment capacity depends on far more than topline revenue: margins, operating expenses, existing obligations, liquidity, timing of collections, and seasonality. Revenue is not cash flow.
Monthly, weekly, and scheduled business-day payments
Depending on the financing product and agreement, payments may be scheduled monthly, weekly, or on scheduled business days. The cadences are not interchangeable experiences, and none of them is universally better.
Monthly payments are fewer and larger, and are commonly associated with many conventional term, equipment, SBA, and real estate structures, depending on the agreement. Weekly payments distribute repayment across the month, which may align with businesses whose operating cash arrives in a steady weekly rhythm. Scheduled business-day payments are smaller and more frequent, following the payment calendar established in the financing agreement, which ordinarily excludes weekends and applicable banking holidays. The same contractual repayment, distributed on different cadences, produces a different cash-flow experience: cadence belongs in every comparison, next to cost, never merged with it.
How different structures express cost
Each family of commercial capital prices in its own language. Each entry below teaches one: what the structure is, how its cost is calculated, and what belongs in its comparison. Describing how a structure works is education about the market, not a statement of availability or terms for any particular business.
One business, multiple capital needs
The reason all of these structures exist becomes obvious the moment one business needs capital for more than one thing.
An $8M-revenue manufacturer. Same company, same balance sheet, five different objectives.
The economics beyond dollars
Two dimensions of cost never appear as a number on any document, and both belong in every comparison.
The first is structure. Depending on the product, financing may involve a blanket or specific-asset UCC lien, real property collateral, personal or corporate guarantees, deposit or receivables arrangements, covenants, or reporting requirements. None of these is cash, and all of them are economics: a lower nominal rate may come with a greater collateral commitment, and a more flexible structure may carry different security requirements. Prepayment provisions belong here too. Depending on the product, early repayment may produce interest savings, an early-payoff discount, no change to a fixed contractual payback, a prepayment premium, or, in more sophisticated financing, yield-maintenance-style provisions. What happens when capital is repaid early can materially change the economics, and it is written in the agreement.
The second is opportunity. Consider an illustrative contractor offered a project with $175,000 of gross expected collections that requires roughly $100,000 of materials and mobilization and an immediate start. The gap between those figures is not profit: labor, subcontractors, overhead, taxes, execution risk, collection risk, and the financing cost itself all come out of it. But if lower-cost capital arrives after the project is awarded to someone else, it was not the better financing choice. Faster, more expensive capital is rational only when the expected economic return comfortably exceeds the financing cost and the business can carry the repayment.
The opposite case deserves equal weight. A business that wants $100,000 simply to hold a larger bank balance, with no defined use, no immediate revenue opportunity, no cost saving, and no specific liquidity event, gains little from paying a premium for rapid capital. Speed has economic value only when timing does. Financing is justified by what the capital accomplishes, not by its availability.
How to compare commercial financing properly
Every financing proposal, in any structure, can be read through the same thirteen questions. This framework is the article: everything above taught one part of it.
How much is approved, or how large is the facility?
How much is actually borrowed or drawn?
How much cash actually reaches the business?
Interest, factor, discount fee, facility pricing, or another method?
How many dollars does the financing ultimately cost under the applicable assumptions?
How long is the capital outstanding?
Monthly, weekly, scheduled business days, or another facility-specific schedule?
How does the repayment schedule interact with operating cash flow?
What changes if the financing is repaid early?
What supports the obligation, monetarily and structurally?
Can capital be redrawn? Is the financing one-time? Does availability fluctuate?
What happens if the business does not obtain the capital, or obtains it too late?
What economic result is the capital intended to produce?
Rate matters, and rate alone is incomplete. The best comparison is not one number against another. It is one complete financing structure against another, evaluated in the context of what the business needs the capital to accomplish.
Understanding the framework is the first step. Applying it to a specific business depends on the financial profile, the objective, and the timing. For how the market itself is organized, start with Commercial Financing, Explained, and for why two providers price the same file differently, see Why Financing Offers Differ.