PenFit / How it works
Methodology architecture

From retirement values to retirement design.

A questionnaire can tell you what people say matters. PenFit determines what those preferences mean for retirement design while keeping proprietary scoring and calibration detail under the bonnet.

1
12 retirement values

Paired comparisons capture relative importance, not a product choice.

2
Preference structure

The full pattern and strength of answers is interpreted rather than simply counted.

3
13 characteristics

Values are translated into product-neutral features a retirement design can deliver.

4
6 approaches

Static, mixed and staged designs are assessed consistently.

5
Fit & gaps

Alignment and remaining compromise are turned into individual and population insight.

The 12 retirement values

These describe what an individual may care about. Each appears twice in the connected questionnaire structure.

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Income

Having enough pension income to support the life you want.

Income certainty & stability

Knowing what income to expect and avoiding large unwanted changes.

Income for life

Income continuing however long you live.

Pension wealth, access & change

Retaining capital, getting at money when needed and preserving future choices.

+
Care, legacy, control, simplicity & growth

Resources for later life, family, personal control, manageable decisions and upside potential.

The 13 retirement characteristics

These describe what a retirement design can actually deliver. Similar-sounding values and characteristics are deliberately kept conceptually separate.

1
Income-generating capacity · Lifetime-income protection
2
Income predictability · Income smoothness · Inflation resilience
3
Capital retention · Liquidity and access · Reversibility
4
Growth participation · Downside resilience
5
Later-life reserve · Legacy transferability · Low individual management burden

The six design archetypes

They are generic retirement approaches used to make the value exchange visible — not individual products or recommendations.

Flexible Income

Retain invested capital and access, accepting investment and longevity risk.

Secure Income

Prioritise lifetime security and predictability, giving up much of the capital access and reversibility.

Target Income

Aim for a target lifetime income with pooling and growth participation rather than a fixed guarantee.

Flexible and Secure Income Mix

Combine some secure lifetime income with an accessible invested element.

Flexible Income then Secure Income Later

Keep flexibility earlier, then make a substantial securing decision later.

Flexible Income with Secure Income Build-Up

Retain flexibility while progressively increasing the secure-income component over time.

Timing and path dependency matter.

The same end position can have a different value depending on when decisions are made and whether they can be reversed. PenFit therefore treats staged choices and difficult-to-undo decisions explicitly rather than assuming retirement is a one-off choice at one date.

Model boundary: PenFit can explain the architecture, taxonomy, governance and validation approach without disclosing proprietary scoring coefficients, calibration parameters or calculation logic.