---
title: iAdjustedRateFactor
summary: API reference for iAdjustedRateFactor.
status: draft
owner: Technical Writer
last_reviewed: 2026-07-31
library: SAIF.Business.Policy
reference_type: package
---

# iAdjustedRateFactor

`iAdjustedRateFactor` is the interface implemented by individual adjusted-rate-factor strategies that contribute to a cumulative premium rate adjustment. Each implementation computes (or looks up) a decimal multiplier for a given `iAdjustedRateProvider`, and returns `AdjustedRates.NonApplicableAdjustedRateFactor` (the value `1`) when the factor does not apply, so the value can be folded into a running multiplication without altering the result.

## Purpose
- Define a common contract for pluggable rate-adjustment factors that operate against an `iAdjustedRateProvider`.
- Guarantee that non-applicable factors contribute the neutral value rather than zero, per [BR-POL-017](../../../../business-rules.md#br-pol-017-non-applicable-adjusted-rate-factors-contribute-the-neutral-value-one).

## Context
- Namespace: `SAIF.Business.Policy`
- Assembly/package: `SAIF.Business.Policy`

## Public members
| Member | Signature | Purpose |
| --- | --- | --- |
| `Factor` | `Property Factor(ByVal inAdjustedRateProvider As iAdjustedRateProvider) As Decimal` | Computes the adjustment multiplier for the supplied `iAdjustedRateProvider`; implementations must return `AdjustedRates.NonApplicableAdjustedRateFactor` (`1`) when the factor does not apply to that provider, per [BR-POL-017](../../../../business-rules.md#br-pol-017-non-applicable-adjusted-rate-factors-contribute-the-neutral-value-one). |


## Behavioral notes
- Source declaration: `Business\SAIF.Business.Policy\CodeMaps\iAdjustedRateFactor.vb`.
- Related operations, rules, and SQL are cross-referenced from the library-level documentation.

## Constraints and usage notes
- Consumers should rely on the declared public surface rather than internal implementation details.

> **Note:** Statements marked with * were inferred from code structure, naming conventions, or
> contextual evidence where direct confirmation was not available in source artifacts. Statements
> marked with ** could not be confirmed; treat as unknown until verified.

## Sources
- `Business\SAIF.Business.Policy\CodeMaps\iAdjustedRateFactor.vb`