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

# Calculate 403b retirement projections

> Calculates multi-year 403b retirement savings projections based on contribution rates and return assumptions. Returns array of yearly projection data (30 years).



## OpenAPI

````yaml /cbs/api-reference/cbs-api.yaml post /calculators/403b/data
openapi: 3.1.0
info:
  contact:
    name: Symmetry Software
    url: https://www.symmetry.com
  description: CBS API Documentation for Calculators by Symmetry
  license:
    name: Terms of service
    url: https://www.symmetry.com/terms
  title: CBS API
  version: 1.201.1
servers:
  - url: https://calculators.symmetry.com/api
security: []
tags:
  - description: List of available paycheck calculators
    name: Calculators
  - description: Salary-based paycheck calculations
    name: Salary Calculator
  - description: Hourly-based paycheck calculations
    name: Hourly Calculator
  - description: Reverse paycheck calculations
    name: Grossup Calculator
  - description: 401k retirement contribution calculations
    name: 401k Calculator
  - description: 403b retirement contribution calculations
    name: 403b Calculator
  - description: Final paycheck calculations
    name: Final Pay Calculator
  - description: Stock option exercise income calculations
    name: Stock Option Calculator
  - description: Tuition reimbursement calculations
    name: Tuition Calculator
  - description: Hourly with tips calculations
    name: Tax Tip Calculator
  - description: Flat bonus calculations
    name: Flat Bonus Calculator
  - description: Aggregate bonus calculations
    name: Aggregate Bonus Calculator
  - description: Batch processing and API data objects
    name: Data
  - description: Deduction configuration
    name: Deductions
  - description: PDF report generation
    name: Print
  - description: State-specific tax parameters
    name: State Parameters
  - description: API documentation
    name: Documentation
  - description: Postman collection and environment
    name: Postman
paths:
  /calculators/403b/data:
    post:
      tags:
        - 403b Calculator
      summary: Calculate 403b retirement projections
      description: >-
        Calculates multi-year 403b retirement savings projections based on
        contribution rates and return assumptions. Returns array of yearly
        projection data (30 years).
      operationId: analyze401kData
      requestBody:
        content:
          application/json:
            examples:
              403b Data Request:
                description: 403b Data Request
                summary: Example 403b retirement planning request
                value:
                  annualSalaryIncrease: '500'
                  checkDate: 1676962800000
                  contributionLimit: '6000'
                  currentSavings: '10000'
                  employeeContribution: 60
                  employerContribution: 30
                  olderThan50: 'false'
                  payFrequency: WEEKLY
                  returnRates:
                    - '1'
                    - '5'
                    - '9'
                  yearsToRetirement: '30'
            schema:
              $ref: '#/components/schemas/_401KData'
        description: 403b data configuration
        required: true
      responses:
        '200':
          content:
            application/json:
              examples:
                403b Projection Response:
                  description: 403b Projection Response
                  summary: Multi-year 403b retirement savings projections
                  value:
                    _links:
                      self:
                        href: >-
                          https://calculators.symmetry.com/api/calculators/403b/data
                    content:
                      - employeeContribution: 3120
                        employerContribution: 1560
                        rates:
                          - 14801.48
                          - 15300.88
                          - 15816.03
                        total: 4680
                        year: 2023
                      - employeeContribution: 18720
                        employerContribution: 6000
                        rates:
                          - 39782.71
                          - 41379.22
                          - 43065.29
                        total: 24720
                        year: 2024
                      - employeeContribution: 22500
                        employerContribution: 6000
                        rates:
                          - 68811.2
                          - 72660.79
                          - 76810.62
                        total: 28500
                        year: 2025
          description: Calculation successful
        '400':
          content:
            application/json:
              example:
                content: Invalid request parameter
          description: Bad Request (validation errors)
        '401':
          content:
            application/json:
              example:
                message: No api key found
          description: No API key
        '403':
          content:
            application/json:
              example:
                message: Invalid api key
          description: Invalid API key
        '404':
          content:
            application/json:
              example:
                error: Not Found
                path: /api/calculators/403b/data/badpath
                status: 404
                timestamp: 1641573466465
          description: Not Found
        '405':
          content:
            application/json:
              example:
                error: Method Not Allowed
                path: /api/calculators/403b/data
                status: 405
                timestamp: 1641572607838
          description: Method Not Allowed
        '422':
          description: Unprocessable Entity
        '500':
          description: Internal Server Error
      security:
        - pcc-api-key: []
components:
  schemas:
    _401KData:
      description: >-
        401k retirement planning projection data including current savings,
        years to retirement, salary increase, and return rates
      properties:
        annualSalaryIncrease:
          type: number
        checkDate:
          format: date-time
          type: string
        contributionLimit:
          type: number
        currentSavings:
          type: number
        employeeContribution:
          type: number
        employerContribution:
          type: number
        olderThan50:
          type: boolean
        payFrequency:
          enum:
            - Annual
            - Bi-weekly
            - Bi-weekly-27
            - Daily
            - Monthly
            - Quarterly
            - Semi-Annually
            - Semi-monthly
            - Weekly
            - Weekly-53
          type: string
        returnRates:
          items:
            type: number
          type: array
        yearsToRetirement:
          format: int32
          type: integer
      type: object
  securitySchemes:
    pcc-api-key:
      description: API key for CBS API authentication
      in: header
      name: pcc-api-key
      type: apiKey

````