Deavo
Due diligenceExpert answer · 1 min read

How do I check an online store’s shipping costs against what customers pay?

Compare what customers paid for shipping with what the store paid carriers over the same orders. Include packaging, free-shipping promotions, reshipments and return labels. Then see where those costs sit in the books, in cost of goods or in expenses, so margins are read the same way each time.

Ask for two sets of data for the same period: shipping income collected at checkout and carrier invoices. Match them order by order for a sample, then in total. If the store offers free shipping above a set cart size, check whether the product margins actually absorb the cost. Many stores subsidize shipping without noticing.

Look at the extras. Packaging, labels, insurance, handling time and lost or damaged parcels add up. Ask how the store handles reshipments and who pays for return labels. Look for unusual items, such as carrier discounts that depend on volume the store may not keep, or rates that changed recently.

Then follow the numbers into the financial statements. Some businesses record shipping in cost of goods sold, others list it as an expense. Neither is wrong, but you need to know which is used before comparing margins with other stores. Ask your accountant to restate the figures in one consistent way. Also ask whether the shipping setup depends on an agreement with a single carrier or fulfilment partner. Finally, ask whether the store has changed its shipping rates lately and how customers reacted. A recent increase may have cut orders, and an overdue one may mean margins are weaker than the current reports suggest.

Key takeaways

  • Match shipping income to carrier invoices for the same orders.
  • Include packaging, reshipments and return labels in the cost.
  • Find out where shipping sits in the financial statements.
  • Ask whether carrier rates depend on volume or a single agreement.

Sources

This answer is checked against primary sources. Links were last confirmed on the dates shown.

  1. 01
    Business Development Bank of CanadaGovernment
    What is the cost of goods sold (COGS)
    bdc.ca·Checked Oct 24, 2026
  2. 02
    Business Development Bank of CanadaGovernment
    How to conduct due diligence when buying a business
    bdc.ca·Checked Oct 21, 2026
  3. 03
    Business Development Bank of CanadaGovernment
    What are the steps to buying a business?
    bdc.ca·Checked Oct 21, 2026

Deavo is an advertising and listings platform, not a brokerage, law firm or valuation firm. This page is general information, not legal, tax, accounting or valuation advice, and rules differ by province. Confirm anything you rely on with a qualified professional before you act on it.