Merchant Funding Payback Estimator for eCommerce Stores
Whether you're stocking up before peak season or scaling ad spend, see what your online card sales could support and how much each day's settlement would go to repayment. Check the math before a funder makes you an offer.
Your estimate
Estimates are based on published industry averages and are not a quote. Actual rates depend on card mix, ticket size, industry, and underwriting.
A payments specialist can walk through your funding options and what an actual application would look at. This estimate is not an offer of credit or an approval decision.
How eCommerce stores should fill in the estimator
Almost every sale an online store makes is card-not-present, so the funder will look at the card volume that settles through your processor or gateway. Enter the average monthly card sales that settle there, after refunds and chargebacks, not gross revenue from your storefront dashboard. If some checkouts run through a separate digital wallet or buy-now-pay-later provider that settles outside your merchant account, leave that volume out. A funder taking a percentage of settlements usually can't collect from money that never reaches your processor.
Your store takes orders seven days a week, so 7 days open is usually the right starting point. Some processors batch and settle only on business days, which changes when the holdback is collected but not the monthly total. Use a 12-month average if you have one. Using only your best quarter will overstate both the funding range and how fast you'd repay.
The "What is the money for?" field matters more for online sellers than most. Inventory for a seasonal spike, a paid-ads push, and covering a cash gap after a supplier price increase all have very different payback timing. Write down what you expect the money to earn and when.
Worked example: a hypothetical eCommerce store
These numbers are hypothetical and are not an offer. Picture an online home-goods store with $50,000 in average monthly card sales, 18 months in business, open 7 days. It wants $40,000 for holiday inventory and is considering a 12% holdback with a 1.25 factor rate.
The estimator works out about 30.33 selling days a month and daily card sales of about $1,648. At 18 months, the estimated range is $37,500 to $62,500, so the full $40,000 is used. The daily holdback is about $198, which means $12 of every $100 in card sales goes to repayment. Total payback is $50,000, so the cost of capital is $10,000. At flat sales, that's about 253 selling days, roughly 8.3 months or 36 weeks, at about $6,000 a month.
The gated breakdown goes further. A 12% term loan over 9 months would run about $4,670 a month with about $2,027 in interest. If sales came in 20% below average, payback would stretch to about 10.4 months. The dollar cost stays the same, but you'd carry the balance longer.
Estimates are based on published industry averages and are not a quote. Actual rates depend on card mix, ticket size, industry, and underwriting.
What's different about funding for eCommerce stores
Seasonality is the big one. Many online stores do a large share of their year in a few peak weeks, then slow down. A percentage-based holdback flexes with that. You pay more during the rush and less in the lull. A fixed daily ACH debit does not flex. Find out which one you're being offered before you compare factor rates.
Returns and chargebacks shrink the settlements a holdback is taken from. After a big promotion, refunds can arrive weeks later, and they reduce net card volume just as repayment is underway. If your processor already holds a rolling reserve because of card-not-present risk, that money is also unavailable. Factor both into how much daily cash you really have.
Look at your processing statement before you borrow. Card-not-present transactions often carry higher costs, and junk fees add up quietly: per-transaction gateway fees, PCI non-compliance fees, chargeback fees, batch fees, and monthly minimums. Cutting those can sometimes free up cash that reduces how much you need to fund.
What a good result looks like for an eCommerce store
A healthy result for an online seller means the monthly repayment fits inside what's left after cost of goods, shipping, platform fees, and ad spend, with room to spare in a slow month. If the payment only works at your peak-season run rate, the deal is probably too large or the holdback too high.
Timing matters too. Ideally, payback finishes before your next big inventory buy, so you aren't stacking a second advance on the first. If the funding pays for stock that sells through in about 60 days but payback runs 10 months, you'll be paying for inventory you've already sold and need to replace. Run the slow-sales scenario and the term loan comparison so you can see the full cost, not just the factor rate.
Frequently asked questions
Do sales through my storefront's built-in wallet or buy-now-pay-later checkout count toward my card volume?
Only if they settle through the merchant account the funder would withhold from. Volume paid out by a separate wallet or installment provider usually isn't visible to the funder or collectible by them, so leave it out of the estimator. Ask any funder exactly which deposits they count.
Should I use my holiday-season sales or my yearly average?
Use a trailing 12-month average, or a slow-month figure if you want a conservative view. Peak-month numbers will overstate the range and understate the payback time. A percentage holdback will collect faster during peak season either way, so you don't need to plan around it.
How do refunds and chargebacks affect the daily holdback?
Holdbacks are usually taken from net settlements. Refunds and chargebacks lower the amount settled, which lowers repayment that day and stretches payback. Ask the funder how they treat refunds, and whether a spike in chargebacks could trigger a review or a change to your terms.
My processor already holds a reserve on my account. Can I still get funding?
Possibly. Underwriting decisions vary by funder, and a reserve doesn't automatically rule you out. Treat reserved funds as unavailable when you check whether the daily holdback is affordable, and ask whether the funder requires you to move processing as part of the deal.
Is merchant funding a good fit for inventory I'll pre-order months before it sells?
It can work, but compare the payback window to your sell-through timeline. If repayment starts the day after funding and the inventory won't sell for 90 days, you'll pay from existing sales in the meantime. The term loan comparison in the full breakdown shows whether a fixed-payment option would cost less for that timeline.