What is co-financing, and are there any rules to follow? Co-financing is a direct financial contribution in the form of a donation or non-commercial payment to encourage companies to propose initiatives that aim to achieve specific impact results in line with the objectives set out in the call for projects. Co-financing can only be used when the initiative originates from the private sector and the results of the action financed are the property of the recipient of the co-financing; Co-financing is subject to the non-profit rule. This means that on the one hand, co-financing may not have the purpose or effect of generating a profit from the project, and on the other, the creation of reserves is not permitted through the project. Any profit margins obtained as a result of setting up the co-financed project and collected during project execution must be reinvested in project execution; Double-funding of project costs and expenditure on actions that took place before a co-financing agreement was signed are not permitted (principle of non-cumulative allocation and non-retroactivity).