Paying for inventory and ads weeks before the platforms pay you

Written for online stores in the US selling on their own site or on marketplaces: direct-to-consumer brands, private-label and FBA sellers, dropshippers and subscription sellers.

The short version

1. Forecast 13 weeks on real payout dates.Put each platform's money in the week it actually lands, less any reserve or hold the platform keeps back.
2. Put every bill in its real week.Include supplier deposits and balances, freight and duty at entry, ad charges, warehouse fees, sales tax and payroll. Flag any week below your minimum balance.
3. Turn any advance fee into an APR.A fixed fee repaid within a few months costs far more a year than it sounds. Compare it with a bank line before signing.

In an online store the cash goes out long before it comes back. You pay the supplier's deposit and balance, then ocean freight, duty and broker fees at entry. The ad platforms charge you daily or at billing thresholds. Only then do orders arrive, and the platforms pay you on their own timetable, less whatever they hold. A profitable store can still run short in the weeks before peak.

The 13-week cash flow

1. Start with the bank.Your opening balance, and the minimum balance you never want to go below.
2. Receipts by channel, on payout timing.Amazon pays disbursements about every 14 days, less its delivery-date reserve. Shopify Payments, Stripe and PayPal pay on their own schedules. Put each receipt in the week it actually lands.
3. Purchase orders and landing costs.Deposit and balance dates, then ocean freight, duty and broker fees at entry.
4. Ad spend.Charged daily or each time you hit a billing threshold.
5. Everything else.3PL invoices, sales tax remittances by state and filing frequency, payroll and payroll taxes, and loan and advance remittances. Then flag every week below your minimum.

Peak and January

Black Friday falls on November 27, 2026 and Cyber Monday on November 30. Peak inventory is paid for before those sales are paid out, and it costs more to hold and ship: FBA capacity limits and October to December storage rates apply, and carriers add peak surcharges. Holiday returns peak in early January, so refunds on December sales come out of January's cash. As of Oct 2026.

What the platforms hold back

Stripe, PayPal, Shopify Payments and the marketplaces may hold a rolling reserve or delay payouts after a jump in refunds or disputes. Amazon holds funds until 7 days after the expected delivery date, and funds are usually held while an account is deactivated. Put each hold in the forecast.

'Item not received' claims on parcels scanned to a porch are a common pattern. For example, on a $260 order, answer with the tracking, the delivery photo and the address match, and from then on require a signature on orders above a set value, such as $200.

Pricing an advance against your sales

Platform capital and revenue-based finance charge a fixed fee repaid as a share of sales. Convert every fixed fee to an APR before signing, and compare it with a bank line of credit against inventory and receivables, or an SBA 7(a) loan, which goes up to $5 million for working capital, inventory and acquisitions, subject to SBA ownership and citizenship eligibility rules that SBA has tightened. A non-citizen owner should get the lender's written eligibility answer before applying. As of Oct 2026.

A fixed fee repaid within a few months costs far more per year than its headline percentage suggests.

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