You have 7 years from last IR entered on your EASA License to get ATPL.
I fell foul of this rule and have to resit all ATPL exams except IFR/VFR Comms.
I now only have CPL/IR until I resit the exams and do a Skill Test
FCL.025 Theoretical knowledge examinations for the issue of licences and ratings
(b) Pass standards
(1) A pass in a theoretical knowledge examination paper will be awarded to an applicant achieving at least 75 % of the marks allocated to that paper. There is no penalty marking.
(2) Unless otherwise determined in this Part, an applicant has successfully completed the required theoretical knowledge examination for the appropriate pilot licence or rating when he/she has passed all the required examination papers within a period of 18 months counted from the end of the calendar month when the applicant first attempted an examination.
(3) If an applicant has failed to pass one of the theoretical knowledge examination papers within 4 attempts, or has failed to pass all papers within either 6 sittings or the period
mentioned in paragraph (2), he/she shall re-take the complete set of examination papers.
Before re-taking the theoretical knowledge examinations, the applicant shall undertake further training at an ATO. The extent and scope of the training needed shall be determined by the ATO, based on the needs of the applicant.
(c) Validity period
(2) The completion of the airline transport pilot licence (ATPL) theoretical knowledge examinations will remain valid for the issue of an ATPL for a period of 7 years from the last
validity date of:
(i) an IR entered in the licence;
You must also transfer your EASA Medical to the member state, (UK)which could put your current job at risk, if no one can sign your LPC