Capitalised maintenance—Duxbury calculations

Published by a ÀÏ˾»úÎçÒ¹¸£Àû Family expert
Practice notes

Capitalised maintenance—Duxbury calculations

Published by a ÀÏ˾»úÎçÒ¹¸£Àû Family expert

Practice notes
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This Practice Note provides guidance on the basis and use of Duxbury calculations in relation to the calculation of capitalised spousal or civil partner maintenance/periodical payments, within financial remedy proceedings, including the assumptions made, limitations and the suitability of such calculations. It also considers the courts’ approach to rates of return generally.

The basis of Duxbury calculations

A Duxbury calculation was originally a calculation designed to identify the capital sum required to meet a periodical payment requirement at a fixed rate for the remainder of the recipient’s life (ie their actuarial life expectancy).

In November 2024, the Duxbury Working Group, which is self-selected, published a final report (following a provisional report in October 2024) addressing previous criticisms and putting forward proposals ‘to banish outdated concepts and generally to modernise the approach’, while confirming that ‘it will be a matter for the courts whether to adopt the recommendations’.

The Duxbury calculations are available via: At a Glance 2025–2026. From 2025 onwards, the calculations do not default to the lump sum required for the duration of the recipient’s life expectancy, reflecting

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Jurisdiction(s):
United Kingdom
Key definition:
Maintenance definition
What does Maintenance mean?

Payments made to a spouse or civil partner or a former spouse or civil partner for themselves or for a child of the family.

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