The 38-year-old reality TV star has revealed in new court documents - filed as part of her complaint about Missguided USA clothing company - that she makes between $300 000 (about R4.3 million) and $500 000 (about R7.1 million) for a single Instagram post.
However, TMZ reports that Kim actually makes up to $1 million and it is likely that her "legal team will re-file the documents with an adjustment".
Kim has filed a lawsuit against the fashion company, claiming that it has been using her image to sell its clothes.
She is seeking $5 million in damages as she claims her brand is being damaged by the association.
Meanwhile, Kim's mother Kris Jenner - who acts as a manager for her famous children recently revealed her daughters charge a "six figure" sum for sponsored social media posts.
The 63-year-old Kardashian matriarch has daughters Kim, Khloé Kardashian, Kourtney Kardashian, Kendall Jenner, and Kylie Jenner, and has said each of the reality stars will charge a whopping sum in exchange for posting a picture on their Instagram account which promotes a certain product.
Although she wouldn't state exactly how much each star charges, she insisted the sums are "definitely six figures".
She added: "My daughters are constantly getting offers to post something for a company, or a brand, on social media. So they're - they have a fee for a post, or a fee for a story, a fee for Facebook, a fee for - you know - they have a fee schedule."
The 'Keeping Up with the Kardashians' star also revealed the likes of Kim and Kylie can charge more for their promoted posts, and each of her daughters hike the price up if the product in question is "pharmaceutical".
Speaking in an interview for 'CBS Sunday Morning' Kris added: "Sometimes, If it's Kim, or if it's Kylie, it depends on what it really is. [If it's] a pharmaceutical product, if it's something that you're going to drink, or ingest, or put on your body, [the price goes up]."
Kris' comments come after Kim stated that she only accepts endorsements for products she actually uses.
She said: "If there is work that is really easy that doesn't take away from our kids, that's like a huge priority, if someone was faced with the same job opportunities, I think they would maybe consider. You're going to get backlash for almost everything so as long as you like it or believe in it or it's worth it financially, whatever your decision may be, as long as you're okay with that."