Lincolnshire LEA still has a process for in year applications:
In-year applications
Lincolnshire County Council operates non-statutory coordination of these applications. Those who would like a school place in Lincolnshire may apply online using the Lincolnshire parent portal on the LCC website or obtain a paper form from 01522 782030. Those who would like places in schools outside of Lincolnshire should apply to the LA in which the school is situated.
All Lincolnshire schools may choose to accept direct applications from parents. If the school do refuse or accept a child directly, they must provide the details of the child to the Local Authority. If a school is contacted by the parent/carer and they are unable to offer a place to a child without a school place, the parent/carer must be advised to contact the school admission team who will co-ordinate a central in-year admission application.
If Lincolnshire have a duty to educate the child and they are not attending a school within a reasonable distance of their home, then the admissions team will allocate a place at the closest school with spaces available if none of the parental preferences can be met. It is for the parent to provide information which establishes the duty to educate the child. Information about what is required to establish this duty will be clearly communicated to parents.
Details of schools operating within Lincolnshire County Council co-ordination will be displayed on the Lincolnshire County Council Website.
https://www.lincolnshire.gov.uk/downloads/file/7595/secondary-co-ordinated-scheme-2024-25