CDR deployments could affect soil carbon stocks through a variety of mechanisms. If a CDR project results in soil carbon loss, for example by disturbing the soil during the construction of a carbon storage site, we recommend this loss be incorporated into the calculation of net carbon removal. Conversely, if a CDR project results in increasing soil carbon stocks, for example by adding ammendments like minerals or biochar that could potentially induce positive changes to soil carbon, we recommend that these changes not be included in the calculation of durable carbon removal due to the impermanence of soil carbon storage. Soil carbon varies by site and depth, and quantifying soil carbon stock changes should rely on rigorous soil sampling.