How to optimise cashflow for your e-commerce business

Quick answer

Use a business credit card with a bill pay service to pay suppliers, giving you 30-45 extra days before money leaves your account. This bridges the gap between purchasing stock and receiving marketplace payouts, effectively creating an interest-free working capital facility.

The e-commerce cashflow problem

E-commerce has a brutal cashflow cycle. You pay for stock upfront, wait for it to arrive (1-4 weeks if you're importing), list it, sell it, then wait for your marketplace or payment provider to release funds. That's potentially 6-8 weeks between money going out and money coming back in.

Meanwhile, your suppliers want paying in 14-30 days. Amazon pays every 14 days. Shopify pays in 2-3 business days, but you still need to buy your next batch of stock before the last batch has fully sold through.

This timing mismatch is why profitable e-commerce businesses fail. The business makes money on paper, but the cash isn't there when the bills are due.

Credit card float for stock purchases

The simplest fix: put stock purchases on a business credit card.

Most credit cards give you 30-56 days interest-free from the transaction date to the payment due date. If you buy stock on day 1 of your billing cycle, you won't need to pay for it for up to 56 days. By then, you should have sold at least some of it and received the payout.

For direct card payments to suppliers:

  • Capital on Tap — up to £250k limit, Visa so universally accepted
  • Funding Circle — up to £250k limit, 1% cashback, no FX fees for international suppliers

Using bill pay for supplier invoices

Many suppliers — especially international ones — only accept bank transfer. Bill pay services solve this by paying your supplier via bank transfer while you pay the bill pay service with your credit card.

This is especially useful for:

  • Chinese/Asian manufacturers who only accept wire transfers
  • UK wholesalers who invoice by bank transfer
  • Freight and logistics companies billing in different currencies

The 1.5-2.5% bill pay fee is almost always cheaper than the alternative (overdraft, invoice finance, or turning down an order because you can't afford the stock).

See our guide to paying invoices with a credit card for the full walkthrough.

Timing card cycles around marketplace payouts

This is where it gets clever. Align your credit card billing cycle with your marketplace payout schedule:

  1. Know your billing date — this is when your credit card statement closes
  2. Buy stock just after the billing date — maximises interest-free days
  3. Sell through before the payment due date — marketplace pays out before your card bill is due
  4. Pay your card bill from the payout — cash flow complete

Example timeline:

  • Day 1: Billing cycle starts, buy £5,000 of stock
  • Day 14-28: Stock arrives, listed, starts selling
  • Day 30: Billing cycle closes
  • Day 30-44: Marketplace payouts arrive (Amazon 14-day cycle)
  • Day 56: Card payment due — pay from marketplace revenue

You've effectively financed £5,000 of stock for free.

Stacking rewards on top

While you're using credit cards for cashflow, you might as well earn rewards on the spend. On £5,000/month in stock purchases:

Over a year, that's £600+ in rewards just for buying stock you were going to buy anyway.

Best cards for e-commerce businesses

Your choice depends on where your suppliers are:

Mostly UK suppliers:

International suppliers:

High-volume (£10k+/month):

See our full card comparison to find the right fit for your business.

Getting started

  1. Get a business credit card with a high enough limit for your stock purchases
  2. Sign up for a bill pay service for suppliers that don't take cards
  3. Note your billing cycle dates and align stock purchases accordingly
  4. Track your marketplace payout schedule
  5. Set up automatic card payments to avoid interest charges

The goal is simple: never pay for stock with your own cash when you can use 30-56 days of free credit card float instead.