Ask ten business owners how much working capital they need and you will get ten guesses — most of them either far too high (cash sitting idle that could be working) or dangerously low (one bad month from a crisis). The question sounds simple, but it hides the real one: how many weeks can you run the business if revenue hiccups, and what does each of those weeks cost you?
This guide gives you the cushion formula we walk owners through: your true weekly operating expenses, multiplied by a coverage number that depends on your trade. It is deliberately simple — one number you can compute tonight — and it is trade-specific, because a restaurant and a trucking company have nothing in common except the word "business."
The cushion formula, step by step
Step 1: total your TRUE weekly operating expenses. Add up everything the business pays to stay open for one week: rent or mortgage, payroll (including your own draw if you take one), supplier and vendor payments, utilities, insurance, fuel, and debt payments on existing obligations. Do not include one-off owner draws or growth spending — this is the keep-the-lights-on number. The honest way to get it: take last quarter's total operating expenses from your books and divide by 13.
Step 2: multiply by your trade's coverage weeks. This is where the formula gets trade-specific. Restaurants and trucking companies need longer runways than asset-light service businesses, because their costs arrive before their cash does. Use the table below to pick your number.
Worked example: a neighborhood restaurant spends about $38,000 a month to operate — rent, payroll, food suppliers, utilities. That is $38,000 × 12 ÷ 52 ≈ $8,770 a week. At 8 weeks of coverage (mid-range for restaurants), the target cushion is about $70,000. That is the number the owner should be able to reach — in cash, a line, or a funded product — before the slow season starts.
Coverage weeks by trade
Not all businesses burn cash the same way. Capital-heavy businesses — trucking fleets, contractors, restaurants — pay big costs before revenue arrives. Asset-light businesses — agencies, consultants, many service trades — carry mostly payroll and software, and their customers pay quickly. The heavier the business, the longer the runway it needs.
| Trade | Why it needs more (or less) | Coverage rule of thumb |
|---|---|---|
| Restaurant | Payroll runs weekly, inventory is perishable and cannot wait, suppliers invoice constantly — but there are no receivables smoothing things out. Customers pay today; everything else is due this week. | 6–8 weeks |
| Trucking company (per truck) | Fuel and repairs are paid before invoices settle on net-30 to net-60 terms, and a blown engine is a five-figure surprise. Each truck is its own cash-flow trench. | 8–12 weeks |
| Contractor / trades | Materials go in before milestone payments come out, retainage can sit 30–60 days past completion, and crews cannot wait for the check to clear. Project gaps are the killer. | 8–12 weeks |
| Asset-light services (agencies, consultants, professional services) | No inventory, low fixed costs, retainers or quick invoices. The main exposure is a late-paying client, not a supply chain. | 4–6 weeks |
What raises your number — and what lowers it
Your cushion should run above the table's baseline when: your customers pay on net-30 or net-60 terms; you are growing ahead of cash (new location, new truck, new crew); your margins are thin; one customer is a big share of revenue; your revenue is seasonal; or repairs and equipment costs arrive in unpredictable chunks.
Your cushion can run leaner when: most revenue arrives as daily card deposits; customers prepay or sit on retainers; you collect receivables fast; you already have an untapped line of credit in place; or your fixed costs are low because you own the property outright.
Term loan vs line of credit vs MCA: picking the vehicle
The cushion is the number; the product is how you hold it. The wrong vehicle turns a smart cushion into a liability. Here is the decision framework:
| Product | Best for | The discipline |
|---|---|---|
| Term loan | Building the cushion once — the start of your busy season, a new location, a fleet expansion. A lump sum on a fixed schedule. | Do not spend it twice. Payments do not pause when revenue does, so this is for planned needs, not surprises. |
| Line of credit | A cushion that lives on. Draw for the slow weeks, repay in the strong ones, pay only for what you use. | The best shape for ongoing working capital — and the hardest to qualify for. It rewards the established business with clean statements. |
| Merchant cash advance | The emergency patch: payroll is Friday, the customer's wire lands Monday. The fastest money in the building. | Never a cushion-building product. Daily debits against operating revenue erode the cushion you are trying to build — one obligation at a time, sprint only. |
Term loan: use it when the need is one-time and planned. You know the season, the expansion, the number. Size it to your revenue, fund it once, and protect the cushion afterward.
Line of credit: the best long-term shape for working capital that breathes in and out. It is harder to qualify for than an advance — funders want to see the clean statements to prove you can manage it — which is why comparing it honestly against an MCA matters before you apply.
MCA: speed has real value when payroll is Friday. But an advance with daily debits is the wrong shape for a permanent cushion — and stacking a second advance to service the first is how healthy businesses end up in a hole. One obligation, for genuine time pressure, repaid and done.
What typically gets funded: the broker's view
Funders size working capital to your actual deposits and monthly revenue — the cushion formula tells you what you need; your statements tell them what you can support. As a rough map of where funded cushions commonly land by trade:
- Restaurants: $25,000–$150,000
- Trucking (small fleets): $50,000–$250,000
- Contractors and trades: $50,000–$300,000
These are common landing zones we see in the market, not promises — your file's statements, time in business, and existing obligations set the actual number. If you want the fuller picture of how funders size an offer to revenue, that is the companion read.
The four mistakes that kill cushions
Borrowing the maximum and spending it like revenue. A cushion you spend in month one is not a cushion. Fund the target number, then leave it alone until the business actually needs it.
Buying fixed assets out of the cushion. The new truck, the kitchen rebuild, the CNC machine — those are equipment financing, matched to the asset's useful life, not money pulled from the account that covers payroll.
One product for everything. The business that funds the slow season, the new truck, and Friday payroll with the same advance is paying the most expensive price for all three. Match the product to the use.
Treating the cushion as profit in the first good month. The cushion is spent last and rebuilt first. The month you feel richest is the month the discipline matters most.
Getting ready to apply: the checklist
Funding-ready checklist
- Last three months of bank statements from the company's operating account — the standard ask
- Your true weekly operating-expense number, computed from the books (not guessed)
- Trade coverage weeks applied to it — your target cushion, with the math written down
- Clean banking history: no recent NSFs, consistent deposits, balances that don't scrape zero
- Time in business and monthly revenue figures you can back up with the statements
- Existing debts listed honestly — funders size around them, and surprises kill files
- Photo ID and a voided check available if a specific product's verification asks — not required upfront
Frequently asked questions
How much working capital does a small business need?
Use the cushion formula: your true weekly operating expenses multiplied by your trade's coverage weeks. Most small businesses land between 4 and 12 weeks of expenses — roughly $25,000 to $300,000 depending on the trade and monthly revenue. The formula is a planning tool, not an approval: your statements, time in business, and existing obligations determine what you can actually fund.
How many weeks of operating expenses should I keep in reserve?
It depends on the trade. Asset-light service businesses generally need 4 to 6 weeks; restaurants need 6 to 8 weeks; trucking companies and contractors typically need 8 to 12 weeks. Capital-heavy businesses with costs that arrive before revenue — fuel, materials, payroll — need the longer runway.
Does a restaurant need more working capital than other businesses?
Yes, compared with asset-light businesses. A restaurant pays weekly payroll, buys perishable inventory that cannot wait, and has no receivables to smooth things out — but customers pay the same day. The standard rule of thumb is 6 to 8 weeks of operating expenses, versus 4 to 6 for a service business with low fixed costs.
Should I get a term loan or a line of credit for working capital?
A term loan fits a one-time cushion build — the start of your busy season, a new location, a fleet expansion — because you get a lump sum on a fixed schedule. A line of credit is the better shape for ongoing up-and-down working capital: draw for slow weeks, repay in strong ones, pay only for what you use. Lines are harder to qualify for, so they reward established businesses with clean statements.
Can I use a merchant cash advance for working capital?
For a genuine emergency — payroll is Friday and a customer wire lands Monday — an advance is the fastest money available. It is not a cushion-building product: daily debits against operating revenue erode the very cushion you are trying to build. Keep it to one obligation at a time, for the sprint, never the marathon — and never stack a second advance to service the first.
Do I need a voided check or photo ID to apply?
No. Applications run on bank statements — the last three months of the company's operating account are the standard ask. A voided check or photo ID is sometimes requested for verification on specific products, but neither is a universal requirement, and anyone demanding them upfront before showing you terms is a red flag.
Know your cushion number? See what you qualify for
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