lifelib: Actuarial models in Python

lifelib is an open-source Python package featuring practical actuarial models, tools, and examples. Contribute your excellent work to lifelib and share it with actuaries from all around the world!

Gallery

Gallery

Selecting model points by cluster analysis

Spyder Plugin for modelx

Last Updates

Note: Follow lifelib on LinkedIn for more frequent updates.

• 13 September 2026: lifelib v0.17.0 is released. frlib, a new library of nine reference liability cash flow projection models for French individual life, savings and retirement products, including assurance vie on both of its supports and the creditor insurance sold with a mortgage, is added. The library is in its draft stage. The uslib, uklib and jplib models move onto the same 0-based monthly grid, and the eight models that stepped annually are renamed from _A to _S.

• 29 August 2026: lifelib v0.16.0 is released. jplib, a new library of nine reference liability cash flow projection models for Japanese individual life products, including the three third-sector products of medical, cancer and nursing care, is added. The library is in its draft stage.

• 22 August 2026: lifelib v0.15.0 is released. uklib, a new library of seven reference liability cash flow projection models for UK individual life products and the pension annuity, is added. The library is in its draft stage.

• 17 August 2026: lifelib v0.14.0 is released. uslib, a new library of twelve reference liability cash flow projection models for U.S. individual life and annuity products, is added. The library is in its draft stage.

• 9 Aug 2026: New download available on the Download page.

… See more updates

About

• What is lifelib?

• How lifelib works

• Contributing to lifelib

• Module Index

• Index

• Search Page

• Past Documents

Quick Start

• Getting lifelib

• Using lifelib with Spyder

• Running Notebooks

• FAQ and How-Tos

Libraries

• The annuallife Library

• The basiclife Library

• The savings Library

• The uslib Library

• The uklib Library

• The jplib Library

• The frlib Library

• The appliedlife Library

• The assets Library

• The ifrs17a library

• The economic Library

• The economic_curves library

• The cluster Library

Past Libraries

• Project fastlife

• Project simplelife

• Project nestedlife

• Project ifrs17sim

• Project solvency2

• Project smithwilson

• Development Guide

Gallery

• savings Examples

• economic Examples

• annuallife Examples

• fastlife Examples

• nestedlife Examples

• ifrs17sim Examples

• solvency2 Examples

• smithwilson Examples

Notebooks

• basiclife Notebooks

• savings Notebooks

• ifrs17a Notebooks

• economic Notebooks

• economic_curves Notebooks

• cluster Notebooks

• annuallife Notebooks

• fastlife Notebooks

• ifrs17sim Notebooks

• smithwilson Notebooks

Videos

• Getting Started with lifelib

Download

Download lifelib with WinPython from here. No installation is required. Just unzip the file and it’s all set.

lifelib sites

Submit an issue on lifelib development site on GitHub to report a bug. Start a discussion on the Discussions site to ask a question about lifelib, propose a new feature, or share your experience with lifelib. Follow lifelib’s LinkedIn page to receive updates.

Development site	lifelib-dev/lifelib
Discussions	lifelib-dev/lifelib#discussions
lifelib on PyPI	https://pypi.org/project/lifelib/
LinkedIn page	https://www.linkedin.com/company/lifelib/

modelx sites

modelx is a Python package to use Python like a spreadsheet. modelx provides the foundation of lifelib. Find out more about modelx on the following sites.

Home page & Blog	https://modelx.io
Documentation site	https://docs.modelx.io
Development site	fumitoh/modelx
modelx on PyPI	https://pypi.org/project/modelx/