A merchant cash advance calculator multiplies the advance amount by the factor rate to find the total payback, then uses the holdback percentage or fixed daily payment to estimate how much the merchant pays each day, how long repayment takes, and what the advance costs as an annualized rate. Those four outputs turn a short offer summary into numbers a business owner can compare.
For MCA brokers and ISOs, the same math sits behind every offer you present. This guide from ConvergeHub walks through each formula with a worked example, shows why two offers with the same factor rate can cost very different amounts, and explains how to keep those numbers organized across deals.
A merchant cash advance calculator is a tool that estimates the total cost, payment size, and repayment timeline of an MCA from a handful of inputs. It exists because MCAs are priced with a factor rate rather than an interest rate, and a factor rate on its own says nothing about how fast the money is repaid.
Most MCA calculators ask for five inputs:
You calculate a merchant cash advance in four steps: find the total payback, find the daily payment, estimate the repayment period, and convert the cost to an annualized rate. The example below uses one set of numbers throughout.
| Input | Example value |
|---|---|
| Advance amount | $50,000 |
| Factor rate | 1.30 |
| Holdback | 15% of daily card sales |
| Average daily card sales | $3,000 (about 21 business days a month) |
Total payback = Advance amount x Factor rate. In the example, $50,000 x 1.30 = $65,000. The cost of capital is the difference, $65,000 – $50,000 = $15,000. This figure, often called the RTR (right to receive), is fixed the moment the agreement is signed.
Daily payment = Average daily sales x Holdback percentage. With $3,000 in daily card sales and a 15% holdback, the funder collects $450 per business day. If sales rise or fall, the daily payment moves with them.
Some agreements use a fixed daily or weekly remittance instead. In that case the calculator simply uses the fixed amount, for example $500 per business day, and many agreements allow a reconciliation request if actual sales fall well below the estimate.
Repayment days = Total payback ÷ Daily payment. Here, $65,000 ÷ $450 = about 145 business days, or roughly 6.9 months. With a holdback, this is always an estimate, because the payback total is fixed but the pace depends on sales.
An estimated APR expresses the $15,000 cost as a yearly rate so the advance can be compared with loans and other offers. Calculators use one of two methods, and they produce very different answers.
The simple method understates the cost of most MCAs. When comparing offers, use the amortizing figure or a calculator that states which method it uses.
Two MCAs with the same factor rate cost different amounts because the factor rate fixes the dollar cost, while the repayment speed determines the annualized cost. The faster the merchant repays, the higher the effective rate, even though the total dollars paid stay the same.
Here is the same $50,000 advance at a 1.30 factor rate and 15% holdback, modeled at three sales levels:
| Daily card sales | Daily payment | Estimated term | Estimated APR (amortizing) |
|---|---|---|---|
| $2,400 (sales down 20%) | $360 | About 181 business days (8.6 months) | About 76% |
| $3,000 (base case) | $450 | About 145 business days (6.9 months) | About 95% |
| $3,600 (sales up 20%) | $540 | About 121 business days (5.7 months) | About 114% |
Fees push the rate higher still. If the same advance carries a $1,500 origination fee deducted from funding, the merchant receives $48,500 but still repays $65,000, and the estimated APR rises to about 107%.
Paying off an MCA early usually does not save money, because the total payback is fixed at signing rather than accruing over time. Unless the agreement includes an early payoff discount, the merchant owes the full RTR whether it is repaid in four months or ten. Some funders do offer prepayment discounts, so a good calculator lets you enter one, and brokers should note any discount terms on the offer.
Brokers use MCA calculations to compare funder offers, explain terms to merchants, and track their own compensation. Three calculations come up on almost every deal.
When a file returns two or three approvals, the broker needs each offer’s advance, factor rate, payment structure, term, fees, and estimated APR in one view. An offer with a lower factor rate but a much shorter term can cost more on an annualized basis than one with a slightly higher factor rate and a longer term.
The buy rate is the factor rate a funder offers the broker, and the sell rate is the rate presented to the merchant. When a broker is permitted to mark up the rate, the difference increases the RTR and is typically shared as commission under the funder’s ISO agreement. For example, on a $50,000 advance, a 1.25 buy rate produces $62,500 in RTR, while a 1.30 sell rate produces $65,000, a $2,500 difference. Some funders instead pay commission as points on the funded amount. Terms vary by funder, so record them on each deal.
Clear cost disclosure is now a legal requirement in several states, including New York and California, which require commercial financing providers to show an estimated APR and other terms for sales-based financing. It is also an industry standard: the Small Business Borrowers’ Bill of Rights, launched by Accion and the Responsible Business Lending Coalition, includes a right to see an annualized rate and all fees before accepting financing.
An MCA CRM keeps calculations organized by storing every offer’s terms on the deal record, so the numbers are there when the merchant calls, when the file is funded, and when the renewal comes up. A spreadsheet calculator works for a single quote, but it breaks down once a team is handling dozens of merchants and several offers per file.
A merchant cash advance CRM built for brokers lets you track:
In ConvergeHub, those values live in custom fields on the deal (5 on Professional, 50 on Premium, and unlimited on Enterprise), with offer letters, document checklists, and renewal reminders tied to the same record. ConvergeHub’s custom field types are text, list, date, radio, and checkbox fields, with no formula fields, so the CRM stores these numbers rather than calculating them. Run the figures through the formulas above or a calculator, then record the results on the deal, or push values in from an outside calculator through ConvergeHub’s REST API and webhooks. Payment tracking and invoicing sit in ConvergeHub’s billing tools, and teams funding revenue-based financing or term products alongside MCAs can configure the same pipeline as an alternative lending CRM.
An MCA calculator gives an estimate, not an offer. Actual terms depend on the funder’s underwriting, and several factors can change the real numbers:
For a broader look at software that handles these workflows, see our guide to the best merchant cash advance CRMs for brokers and funders.
An MCA calculator estimates the total payback, daily payment, repayment period, and annualized cost of a merchant cash advance from the advance amount, factor rate, holdback or fixed payment, and average sales.
Multiply the advance by the factor rate to get total payback, multiply average daily sales by the holdback to get the daily payment, divide total payback by the daily payment to estimate the term, then annualize the cost to get an estimated APR.
A factor rate is a decimal multiplier, usually 1.1 to 1.5, applied once to the advance to set the total payback. A $50,000 advance at a 1.30 factor rate has a total payback of $65,000.
The holdback is a fixed percentage of daily card sales, commonly 10% to 20%. A 15% holdback on $3,000 in daily sales produces a $450 daily payment.
Divide the cost of capital by the advance, then annualize it over the repayment period. The simple method divides by the term in years; the amortizing method accounts for the declining balance and gives a more accurate, higher figure.
Lower-risk merchants with steady sales and longer time in business typically see factor rates toward the low end of the 1.1 to 1.5 range. Always compare the estimated APR and fees too, since term length changes the true cost.
Usually not. The total payback is fixed at signing, so early payoff saves money only if the agreement includes a prepayment discount.
The buy rate is the factor rate a funder offers the broker, and the sell rate is the rate presented to the merchant. Where markups are allowed, the difference typically becomes part of the broker’s commission.
Running the math once is easy. Keeping every offer, commission, and renewal accurate across a full pipeline is where brokers lose time. See ConvergeHub in a free demo and walk a real merchant deal from calculation to funded offer.
