diff --git a/formulas/functions/financial.js b/formulas/functions/financial.js
new file mode 100644
index 00000000..ca2df31f
--- /dev/null
+++ b/formulas/functions/financial.js
@@ -0,0 +1,58 @@
+const FormulaError = require('../error');
+const {FormulaHelpers: H, Types} = require('../helpers');
+const {DATEVALUE, YEARFRAC} = require('./date');
+
+const FinancialFunctions = {
+    /**
+     * https://support.microsoft.com/en-us/office/accrint-function-fe45d089-6722-4fb3-9379-e1f911d8dc74
+     */
+    ACCRINT: (issue, firstInterest, settlement, rate, par, frequency, basis, calcMethod) => {
+        issue = H.accept(issue);
+        firstInterest = H.accept(firstInterest);
+        settlement = H.accept(settlement);
+
+        // Parse date string to serial
+        if (typeof issue === "string") {
+            firstInterest = DATEVALUE(firstInterest);
+        }
+        if (typeof issue === "string") {
+            issue = DATEVALUE(issue);
+        }
+        if (typeof issue === "string") {
+            settlement = DATEVALUE(settlement);
+        }
+
+        rate = H.accept(rate, Types.NUMBER);
+        par = H.accept(par, Types.NUMBER);
+        frequency = H.accept(frequency, Types.NUMBER);
+        basis = H.accept(basis, Types.NUMBER, 0);
+        calcMethod = H.accept(calcMethod, Types.BOOLEAN, true);
+
+        // Issue, first_interest, settlement, frequency, and basis are truncated to integers
+        issue = Math.trunc(issue);
+        firstInterest = Math.trunc(firstInterest);
+        settlement = Math.trunc(settlement);
+        frequency = Math.trunc(frequency);
+        basis = Math.trunc(basis);
+
+        // If rate ≤ 0 or if par ≤ 0, ACCRINT returns the #NUM! error value.
+        if (rate <= 0 || par <= 0 )
+            return FormulaError.NUM;
+
+        // If frequency is any number other than 1, 2, or 4, ACCRINT returns the #NUM! error value.
+        if (frequency !== 1 && frequency !== 2 && frequency !== 4)
+            return FormulaError.NUM;
+
+        // If basis < 0 or if basis > 4, ACCRINT returns the #NUM! error value.
+        if (basis < 0 || basis > 4)
+            return FormulaError.NUM;
+
+        // If issue ≥ settlement, ACCRINT returns the #NUM! error value.
+        if (issue >= settlement)
+            return FormulaError.NUM;
+
+        
+
+
+    }
+};
diff --git a/package.json b/package.json
index 607c4423..4076ed79 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "fast-formula-parser",
-  "version": "1.0.18",
+  "version": "1.0.19",
   "description": "fast excel formula parser",
   "repository": "https://github.com/LesterLyu/fast-formula-parser",
   "main": "index.js",