Working Capital Loan Calculator

A working capital loan calculator estimates what a short-term business advance or loan will cost and how much it draws from your daily or weekly cash flow, using three inputs: the amount you want, your average monthly revenue, and either an interest rate (for a term loan) or a factor rate (for a revenue-based advance). For most small businesses funding on deposits rather than perfect credit, the number that matters is not a single APR — it is the periodic payment (daily, weekly, or monthly) measured against the revenue that has to cover it. A good calculator answers one question in plain terms: after this payment comes out, is there enough left to run the business?

Below is how to use a working capital calculator the way a funder does, worked examples with realistic figures, a decision framework for when this financing fits and when to avoid it, and where a revenue-based advance or MCA makes sense versus a fixed term loan.

What a working capital loan calculator actually estimates

Working capital is the cash a business needs to cover day-to-day operations — payroll, inventory, rent, supplier invoices — between the money going out and the money coming in. A working capital loan or advance bridges that gap. A calculator translates a funding amount into the three numbers you use to decide:

• Periodic payment — the amount debited daily, weekly, or monthly. This is the figure that hits your account and the one your cash flow has to absorb.
• Total cost of capital — expressed as an interest rate and APR for a term loan, or a factor rate (for example 1.15 to 1.49) for a revenue-based advance. Factor-rate financing is fixed-cost, not amortizing, so it does not carry an interest rate in the traditional sense.
• Cash-flow load — the payment as a percentage of your revenue. Underwriters watch this closely; so should you. A payment that eats too large a share of deposits is the single most common reason a good business gets into trouble with short-term financing.

The reason we lead with the payment and the cash-flow load rather than a total-payback dollar figure is simple: a business does not repay a loan out of a lump sum, it repays out of the money that moves through its bank account. The right question is never only "what does it cost" — it is "can the weekly payment coexist with payroll and rent in a slow week."

How to use the calculator: the three inputs that drive the estimate

Enter these three things and the rest follows:

1. Funding amount. How much working capital you need. Revenue-based programs typically start around $10,000 and are commonly sized to roughly 50%–150% of one month of revenue, because the payment has to fit inside future deposits.
2. Average monthly revenue (from bank deposits). This is what real approval is built on. Funders read 3–6 months of business bank statements and size the offer to your deposit history, not to a hoped-for projection. Use your actual average, not your best month.
3. Rate or factor rate, and term. For a term loan, enter an interest rate and the number of months. For a revenue-based advance, enter a factor rate and an estimated repayment window; the calculator derives a daily or weekly payment from the amount, the factor, and the number of business days in the term.

Then read the outputs against a fourth number you supply yourself: your typical operating cushion. If the estimated payment leaves too little between deposits and obligations, the answer is a smaller amount or a longer term — not a bigger leap of faith.

Term loan math vs. factor-rate math (why the two look different)

A working capital term loan amortizes: each payment covers interest plus a slice of principal, and the interest is calculated on the declining balance. Its cost is quoted as an interest rate and an APR, and paying it off early usually saves interest.

A revenue-based advance or MCA uses a factor rate. You agree to remit a fixed total in exchange for the funded amount, and repayment is collected as a set daily/weekly debit or as a percentage of card sales (a holdback). The cost is fixed up front, so early repayment does not reduce the agreed amount unless the funder offers an early-payoff discount — always ask.

Two consequences matter when you read a calculator:

• APR is not a clean comparison across the two. A factor rate converted to APR looks very high on short terms because the fixed cost is spread over few months. That does not automatically make it a bad tool — it makes it a short-duration tool. Judge it by fit and payment load, not by APR alone.
• The factor rate is not the payment. A 1.30 factor and a 1.30 factor over different terms produce very different daily debits. The term length, and therefore the daily/weekly payment, is what determines whether the financing is survivable.

Realistic example estimates

The table below shows how the same funding amount produces different cash-flow loads depending on structure and term. These are illustrative figures for example only — your actual offer depends on your bank statements, industry, and time in business. Payments are rounded and stated as ranges to reflect how remittance is estimated, not promised.

Notice what changes the payment: the term stretches the same cost over more days and lightens each debit; the card-split ties repayment to how the business is actually doing that week. Both are cash-flow levers a calculator lets you test before you sign.

How funders size and approve a working capital offer

For revenue-based and MCA-style funding through a marketplace, approval leans on bank deposits and revenue consistency far more than on credit score. A typical profile that gets offers:

• Revenue: steady monthly deposits, usually at least $10,000–$15,000/month, read from 3–6 months of statements.
• Time in business: commonly 6+ months operating.
• Credit: FICO around 500+ is often workable, because the deposit history carries the decision.
• Banking health: few negative days, no pattern of returned payments, no large existing debits already consuming the deposits.

Funding commonly lands in 24–48 hours after a complete file. No legitimate funder can guarantee approval or a specific rate before reading your statements — anyone who does is a red flag. A marketplace matches your file to multiple funders, which usually surfaces a better payment and term than pursuing one lender at a time. For the mechanics of factor rates and holdbacks, see the merchant cash advance overview.

Decision framework: when a working capital advance fits, and when to avoid it

Use the calculator to test fit, then use this framework to decide.

Works best when:

• The cash need is short-term and self-liquidating — inventory that will sell, a slow-paying invoice that will land, a seasonal ramp with a known payoff.
• Speed matters and a bank timeline would cost you the opportunity.
• Your credit is imperfect but revenue is steady — deposits can carry an approval a credit score can't.
• The estimated daily/weekly payment sits comfortably inside your real deposit history, including a slow week.

Avoid or pause when:

• You'd use it to cover a structural, ongoing loss rather than a timing gap — short-term financing does not fix a business that loses money every month.
• The payment only works in your best-case week. Model the slow week; if it breaks there, the amount is too big or the term too short.
• You're already carrying advances and the new debit would stack on top of existing ones until deposits can't breathe.
• A cheaper, slower option (SBA, a bank line, a card) fully covers the need and timing — use it.

If you already hold one or more advances, do not simply add another. Look at restructuring the daily load first; stacking is the fastest route to a cash-flow squeeze.

Reduce your cost and payment before you accept

The calculator is a negotiating tool, not just an estimator. Levers that move your real cost:

• Take the right amount, not the biggest. The largest approval is not a target. Borrow to the need; a smaller amount is a smaller debit.
• Ask for a longer term. Stretching repayment lowers each payment and eases the cash-flow load, even at a similar total cost.
• Ask about early-payoff or renewal discounts. On factor-rate products, some funders reduce the balance for early payoff or improve pricing on a second position once you've performed.
• Clean up the deposits first. A month of steady banking with no negative days can meaningfully improve the offer you're calculating against.
• Compare offers side by side. Same amount, same term, then look at the payment. A marketplace does this in one file instead of many applications and many hard pulls.