If you currently live in Sweden with a British citizen but without your own residence status, in exceptional cases you can apply for residence status even though the application period has expired (on 31 December 2021).
When you do so, please submit a written explanation of why you were prevented from applying on time together with your application. It is then the Swedish Migration Agency that assesses whether your explanation provides reasonable reasons for why you are applying too late. The fact that you had a residence card or were registered in Sweden with a civic registration certificate that showed that you had a right of residence is not an adequate explanation. It is also not enough that it is stated in your civic registration certificate from the Swedish Tax Agency that you had the right of residence, or to claim that as a British citizen, you did not know that you needed to apply for residence status.
You must also have lived in Sweden with your family member before the end of the transition period on 31 December 2020.
How to submit your explanation
Write your explanation for your late application in the Other information field or in a separate document.