Is a researcher, employed through a H2020 MSCA COFUND, entitled to a family allowance if their family status changes after they were recruited?

A COFUND project can be designed in many different ways and it is up to the beneficiary to decide how the researchers are funded. If the beneficiary wants to include a family allowance after the recruitment, it is OK, but it is not a formal requirement from the EC/ REA. It can of course be evaluated positively by the evaluators as clear support to offer the best conditions to the fellows. In addition, this would be unlikely, as in H2020 the MSCA rules did not foresee changes in the eligibility for family allowance during the fellowship duration.