There is a Halachic prohibition of Onaah, overcharging the price of a commodity in a market above market price (Choshen Mishpat 227). Halacha does permit setting a high pricing on new types of goods that you create and sell. My question is, is it Onaah to charge higher than market rate for a commodity that exists already but is a unique and innovated version of it, for example a new type of iphone with different features, designs, models etc. even though iPhones already exist.

  • Can you source the claims in your first two sentences
    – Double AA
    Commented Dec 25, 2023 at 1:18
  • @kirk be to precise (and you might mean that!), that answer refers to items with no market value because of the lack of other sellers, regardless of who invented it
    – AKA
    Commented Dec 25, 2023 at 6:11

1 Answer 1


Rav Yoel Schwartz writes in Mammon Kasher (page 90) that one may charge a price higher than market price of an item, given he has a unique variating until everyone else copies him.

Manufacturing it by oneself does not allow one to overcharge for the same product already available on the market. I think you're confusing your second assertion with the prohibition to hoard produce from the market at the end of Choshen Mishpat 231.

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