> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fincept.in/llms.txt
> Use this file to discover all available pages before exploring further.

# Test for Significant Increase in Credit Risk

> Determines whether a financial asset has experienced a Significant Increase in Credit Risk (SICR) under IFRS 9, which triggers the transition from Stage 1 (12-month ECL) to Stage 2 (lifetime ECL). Tests both absolute and relative thresholds: absolute threshold checks if PD increase exceeds a fixed amount (e.g., 0.5%), relative threshold checks if current PD is a multiple of origination PD (e.g., 2x). Either trigger results in SICR. Use this for loan staging decisions, ECL provisioning methodology, and audit documentation of stage transitions. [Tier: ENTERPRISE, Credits: 10]



## OpenAPI

````yaml api-specs/regulatory.json post /quantlib/regulatory/ifrs9/sicr
openapi: 3.1.0
info:
  title: FinceptQuantLib API - Regulatory
  description: >-
    Pro-tier regulatory compliance and capital adequacy endpoints covering Basel
    III capital ratios and RWA calculations, SA-CCR counterparty credit risk
    exposure metrics, IFRS 9 expected credit loss provisioning, liquidity
    coverage ratios (LCR/NSFR), and stress testing capital projections. All
    endpoints require Pro tier access and consume 5 credits per request.
  version: 3.0.0
  contact:
    name: Fincept API Support
    url: https://fincept.in
servers:
  - url: https://api.fincept.in
    description: Fincept API Production Server
security:
  - APIKeyHeader: []
tags:
  - name: quantlib-regulatory
    description: >-
      Regulatory compliance and capital adequacy calculations for Basel III,
      SA-CCR, IFRS 9, liquidity ratios, and stress testing. Pro tier required.
    x-displayName: Regulatory
paths:
  /quantlib/regulatory/ifrs9/sicr:
    post:
      tags:
        - quantlib-regulatory
      summary: Test for Significant Increase in Credit Risk
      description: >-
        Determines whether a financial asset has experienced a Significant
        Increase in Credit Risk (SICR) under IFRS 9, which triggers the
        transition from Stage 1 (12-month ECL) to Stage 2 (lifetime ECL). Tests
        both absolute and relative thresholds: absolute threshold checks if PD
        increase exceeds a fixed amount (e.g., 0.5%), relative threshold checks
        if current PD is a multiple of origination PD (e.g., 2x). Either trigger
        results in SICR. Use this for loan staging decisions, ECL provisioning
        methodology, and audit documentation of stage transitions. [Tier:
        ENTERPRISE, Credits: 10]
      operationId: ifrs9_sicr
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - origination_pd
                - current_pd
              properties:
                origination_pd:
                  type: number
                  description: Probability of Default at origination/initial recognition
                  minimum: 0
                  maximum: 1
                  example: 0.008
                current_pd:
                  type: number
                  description: Current Probability of Default
                  minimum: 0
                  maximum: 1
                  example: 0.022
                threshold_absolute:
                  type: number
                  description: >-
                    Absolute PD increase threshold (e.g., 0.005 = 0.5%). SICR if
                    current_pd - origination_pd > threshold
                  default: 0.005
                  example: 0.005
                threshold_relative:
                  type: number
                  description: >-
                    Relative PD increase threshold (e.g., 2.0 = doubling). SICR
                    if current_pd / origination_pd > threshold
                  default: 2
                  example: 2
            examples:
              sicr_triggered:
                summary: SICR triggered - PD more than doubled
                value:
                  origination_pd: 0.008
                  current_pd: 0.022
                  threshold_absolute: 0.005
                  threshold_relative: 2
              no_sicr:
                summary: No SICR - moderate increase within thresholds
                value:
                  origination_pd: 0.01
                  current_pd: 0.015
                  threshold_absolute: 0.005
                  threshold_relative: 2
              sicr_absolute_only:
                summary: SICR via absolute threshold
                value:
                  origination_pd: 0.002
                  current_pd: 0.01
                  threshold_absolute: 0.005
                  threshold_relative: 5
      responses:
        '200':
          description: SICR assessment completed successfully
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                    example: true
                  data:
                    type: object
                    properties:
                      significant_increase:
                        type: boolean
                        description: Whether SICR has occurred (triggers Stage 2)
                        example: true
                      origination_pd:
                        type: number
                        description: Origination PD used in assessment
                        example: 0.008
                      current_pd:
                        type: number
                        description: Current PD used in assessment
                        example: 0.022
              examples:
                sicr_true:
                  summary: SICR detected
                  value:
                    success: true
                    data:
                      significant_increase: true
                      origination_pd: 0.008
                      current_pd: 0.022
                sicr_false:
                  summary: No SICR
                  value:
                    success: true
                    data:
                      significant_increase: false
                      origination_pd: 0.01
                      current_pd: 0.015
        '401':
          $ref: '#/components/responses/UnauthorizedError'
        '402':
          $ref: '#/components/responses/InsufficientCreditsError'
        '422':
          $ref: '#/components/responses/ValidationError'
components:
  responses:
    UnauthorizedError:
      description: Authentication information is missing or invalid
      content:
        application/json:
          schema:
            type: object
            properties:
              detail:
                type: string
                example: Invalid API key
    InsufficientCreditsError:
      description: Insufficient API credits to complete request
      content:
        application/json:
          schema:
            type: object
            properties:
              detail:
                type: string
                example: Insufficient credits. This endpoint requires 5 credits.
    ValidationError:
      description: Request validation error
      content:
        application/json:
          schema:
            type: object
            properties:
              detail:
                type: array
                items:
                  type: object
                  properties:
                    loc:
                      type: array
                      items:
                        type: string
                    msg:
                      type: string
                    type:
                      type: string
          example:
            detail:
              - loc:
                  - body
                  - cet1_capital
                msg: field required
                type: value_error.missing
  securitySchemes:
    APIKeyHeader:
      type: apiKey
      in: header
      name: X-API-Key
      description: >-
        API key for authentication. Get your key at
        https://api.fincept.in/auth/register

````