Working Paper 185: Final “S4” Series mortality tables

CMI Working Paper 185 was published in February 2024.

The working paper, in conjunction with Working Paper 181, describes the final “S4” Series mortality tables.

The S4 tables are based on data for 2014 to 2019, to avoid years affected by the coronavirus pandemic, and have an effective date of 1 January 2017. We described the dataset, graduation methods, and proposed S4 tables in detail in the consultation in Working Paper 181 and have not reproduced that detail in this paper.

The paper summarises feedback on the consultation, discusses the Committee’s response to the feedback, and describes one planned change to the proposed tables.

We have previously released three series of mortality tables for Self-Administered Pension Schemes, with the latest being the S3 Series in 2018. 

The SAPS Committee hosted a webinar on 8 March 2024 to discuss the final “S4” Series tables. The webinar was presented by Matt Fletcher (Chair of the SAPS Committee). Instructions and information on how to view the webinar recording can be found by downloading this document.


We have released two spreadsheets to accompany this paper:

The paper and accompanying spreadsheets are available to Authorised Users only.


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