Change of affiliation after acceptance of a paper? I will change my affiliation from University X to University Y in mid February, and I have got a paper accepted just before I move. The proofs will be sent back to the journal just a week before I change my affiliation.
Is it valid to use my new affiliation in the paper? This would be useful as it will count towards my publications in my new institution.
I have already signed a contract and will receive my new email address soon, however, my start date in my new affiliation is just a week after I submit the final version of the accepted paper.
Different journals may have different rules, however, in general:
Affiliations indicate where the work was done (to be precise, where a (co-)author has been working while doing the work presented in the paper).
If you change institutes while working on a paper (including writing up and revising) you should enter both affiliations. When you are affiliated to multiple institutes while working on a paper (simultaneously), add both as well.
However, in a case like yours, assuming that the paper is now accepted (no more revisions), only the old affiliation should be added (unless your journal of choice suggests something else). No work has been done while you are working in the new position.