---
title: "Creates a Supplement"
method: POST
path: "/api/2026-07-01/resources/payroll/supplements"
tags: ["Payroll > Supplement"]
---

# Creates a Supplement

`POST /api/2026-07-01/resources/payroll/supplements`

Creates a Supplement

## Request body

- object
  - `amount_in_cents` integer, required — Supplement amount in cents
  - `employee_id` string, required — The employee id of the suplement
  - `effective_on` string, required — Supplement effective on date following the format YYYY-MM-DD
  - `contracts_taxonomy_id` string, required — Supplement contract taxonomy id
  - `contracts_compensation_id` string — Supplement contract compensation id
  - `payroll_policy_period_id` string, required — Supplement payroll policy period id
  - `unit` string — Supplement unit
  - `worked_days` integer — Supplement worked days

## Response `201`

CREATED

- PayrollSupplement
  - `id` string, required — The identifier of the supplement
  - `employee_id` string, required — The identifier of the employee associated with the supplement
  - `company_id` string, required — The identifier of the company associated with the supplement
  - `contracts_compensation_id` string — The contract compensation identifier associated with the supplement
  - `contracts_taxonomy_id` string — The taxonomy identifier associated with the supplement
  - `amount_in_cents` integer — The amount of the supplement in cents
  - `unit` 'money' | 'units' | 'time', required — The unit of the supplement
  - `effective_on` string — The date on which the supplement becomes effective
  - `created_at` string — The created at date when the supplement was created
  - `updated_at` string — The last updated at date when the supplement was last updated
  - `description` string — The description of the supplement
  - `payroll_policy_period_id` string — The payroll policy period identifier associated with the supplement
  - `employee_observations` string[] — Observations on the employee made by the admin or manager
  - `raw_minutes_in_cents` integer — The raw value of minutes in cents associated with the supplement
  - `minutes_in_cents` integer — The value of minutes in cents after adjustments
  - `equivalent_minutes_in_cents` integer — The equivalent value of minutes in cents for payroll processing
  - `currency` string — The currency used for the supplement, typically in ISO 4217 format
  - `legal_entity_id` string — The legal entity identifier associated with the supplement

---

[API](https://skmtc.net/factorialhr/apis/factorial-api.md) · [All operations](https://skmtc.net/factorialhr/apis/factorial-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/factorialhr/factorial-api/revisions/1a6bffb20f7d/schema)