Help centre · Repricer

FBM repricing and postage

If you ship your own orders, the postage you charge can earn or cost you money. One switch on each rule lets you choose how postage is treated in your minimum price. It only affects FBM listings.

Change the setting

  1. Open the rule and go to the Minimums tab.
  2. Find FBM Postage. Use the Include postage profit in my minimum price switch. The app explains it.
  3. Update the rule. You can set this differently on each rule.

Check Amazon's current pricing policies before you decide.

Set your postage cost first

STK uses the FBM Shipping cost on each product's Cost of Goods. New products pick up your Default FBM Shipping Cost, which you set in Settings under Cost of Goods. Set that first, then check any product that shows no FBM Shipping cost. See default prep and shipping costs.

Your profit figures

The profit figures in STK don't change. This only affects the prices the Repricer works to.

For the matching settings on a rule, see offer types and matching settings. For your limits, see set a minimum ROI, margin or profit.

Related guides

See how the STK repricer helps

Need a hand? Email support@sellertoolkit.co.uk. Updated 5 November 2026.