diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1054,6 +1054,7 @@ Supported by [Online Tools Collection](https://tools-collection.net)
 - [KuCoin](./pages/kucoin-api/README.md) - KuCoin's API supports spot, margin, and futures trading with market data, order management, and account endpoints 🆓
 - [Louis Dorrad](./pages/louis-dorrad/README.md) - Google’s product is quite similar to Amazon’s but it’s actually
 - [Music Machinery](./pages/music-machinery/README.md) - Here’s a categorized list of all the Music APIs
+- [MyPayslip.lk Sri Lanka Salary Calculator](./pages/mypayslip-lk/README.md) - Free read-only API for calculating a regular Sri Lankan monthly payslip, including APIT (PAYE), employee and employer EPF, employer ETF, stamp duty, net salary, annual figures and employer contributions 🆓
 - [NewStack](./pages/newstack/README.md) - Vendors offer a variety of methods and capabilities that allow devices to talk to each other and cloud/Web-based services
 - [OKX](./pages/okx-api/README.md) - OKX's API provides spot, futures, options, and DeFi trading with real-time market data and account management 🆓
 - [OpenCorporates](./pages/opencorporates/README.md) - World's largest open database of companies
diff --git a/collection/mypayslip-lk.yaml b/collection/mypayslip-lk.yaml
new file mode 100644
index 000000000..2d6e8a942
--- /dev/null
+++ b/collection/mypayslip-lk.yaml
@@ -0,0 +1,32 @@
+name: MyPayslip.lk Sri Lanka Salary Calculator
+slug: mypayslip-lk
+description: Free read-only API for calculating a regular Sri Lankan monthly payslip, including APIT (PAYE), employee
+  and employer EPF, employer ETF, stamp duty, net salary, annual figures and employer contributions. No API key is
+  required, CORS is enabled, and calculations use the current 2026/27 rules effective from 1 April 2025.
+categories:
+  - Finance & Economics
+type: REST
+is_free: true
+is_active: true
+auth_type: none
+tags:
+  - sri-lanka
+  - salary
+  - payslip
+  - tax
+  - apit
+  - epf
+  - etf
+specification:
+  type: OpenAPI
+  url: https://mypayslip.lk/openapi.json
+  version: 3.1.0
+links:
+  - name: Docs / Website
+    url: https://mypayslip.lk/methodology/
+  - name: API Endpoint
+    url: https://mypayslip.lk/api/calc?salary=200000
+  - name: OpenAPI Specification
+    url: https://mypayslip.lk/openapi.json
+  - name: Reference Implementation
+    url: https://github.com/Buddhima-JD3/sri-lanka-salary-calculator
diff --git a/pages/mypayslip-lk/README.md b/pages/mypayslip-lk/README.md
new file mode 100644
index 000000000..0d324f400
--- /dev/null
+++ b/pages/mypayslip-lk/README.md
@@ -0,0 +1,37 @@
+# 📦 [MyPayslip.lk Sri Lanka Salary Calculator](https://mypayslip.lk/methodology/)
+
+
+> **Free read-only API for calculating a regular Sri Lankan monthly payslip, including APIT (PAYE), employee and employer EPF, employer ETF, stamp duty, net salary, annual figures and employer contributions. No API key is required, CORS is enabled, and calculations use the current 2026/27 rules effective from 1 April 2025.**
+
+## 📝 Details
+- **Categories**: [Finance & Economics](https://github.com/tools-collection/apis-collection#finance--economics-)
+- **Type**: `REST`
+- **Auth**: `none`
+- **Free**: `Yes` 🆓
+- **Status**: `Active`
+
+## 🚦 Rate Limits
+*Not specified*
+
+## 📖 Specification
+- **Type**: `OpenAPI`
+- **URL**: [https://mypayslip.lk/openapi.json](https://mypayslip.lk/openapi.json)
+- **Version**: `3.1.0`
+
+## 🔗 Links
+- [Docs / Website](https://mypayslip.lk/methodology/)
+- [API Endpoint](https://mypayslip.lk/api/calc?salary=200000)
+- [OpenAPI Specification](https://mypayslip.lk/openapi.json)
+- [Reference Implementation](https://github.com/Buddhima-JD3/sri-lanka-salary-calculator)
+
+## 🧰 Libraries
+*No libraries available*
+
+## 📬 Contact
+*Not provided*
+
+## 💬 Discussion
+*Not provided*
+
+---
+[Back to README](../../README.md) | Supported by [Online Tools Collection](https://tools-collection.net)