Amazon said on Wednesday that it was adding a fuel and inflation surcharge to the fees it charges sellers whose inventory it warehouses and delivers to customers.
The surcharge will take effect on April 28.
In an email to sellers, the company said that it had absorbed increased wages for workers and the construction of more warehouses to reduce the impact on its selling partners.
The inflation rate in March was the fastest in 33 years. The price of gasoline was up from a year ago.
The fee increases went into effect in January. It told sellers that was not enough on Wednesday.
The company told sellers that they expected a return to normal in 2022.
FedEx andUPS both have fuel surcharge pegged to fuel cost indexes.
Most items that customers buy off Amazon are sold by third-party sellers who pay Amazon a referral fee for each sale and an additional fulfillment fee if they use Amazon's warehousing and delivery services. The primary way for products to be eligible for a Prime label is through Amazon's fulfillment services, which are not required by sellers.
About 22 percent of the company's revenue was paid by sellers last year.
The surcharge was reported earlier on Wednesday.