The book "Slicing Pie" delves into the topic of how to split equity before receiving any outside funding in detail: https://www.amazon.com/Slicing-Pie-Funding-

The book "Slicing Pie" delves into the topic of how to split equity before receiving any outside funding in detail: https://www.amazon.com/Slicing-Pie-Funding-Company-without/dp/B00MFXJJYS https://www.amazon.com/Slicing-Pie-Funding-Company-without/d... https://slicingpie.com/ https://slicingpie.com/ The idea is to dynamically adjust equity based on how much everyone is contributing. Some people report good experience using this dynamic split method: https://cofounderslab.com/discuss/has-anyone-used-the-slicing-pie-method-of-managing-equity-allocations-through-a-grunt-fund https://cofounderslab.com/discuss/has-anyone-used-the-slicin... With that said, I am sure there are a lot of different methods that could work depending on the people involved, it's not as if there is only one "right" way to do it.