diff --git a/src/PaymentTerm.ts b/src/PaymentTerm.ts
index a935a82..bde6051 100644
--- a/src/PaymentTerm.ts
+++ b/src/PaymentTerm.ts
@@ -28,6 +28,7 @@ export const SUPERPAY_TERMS = [
   '10_days',
   '15_days',
   '20_days',
+  '30_days'
 ] as const;
 
 export type SuperPayTerm = typeof SUPERPAY_TERMS[number];
diff --git a/src/__tests__/PaymentTerm.spec.ts b/src/__tests__/PaymentTerm.spec.ts
index 02344bb..6ce710c 100644
--- a/src/__tests__/PaymentTerm.spec.ts
+++ b/src/__tests__/PaymentTerm.spec.ts
@@ -141,6 +141,10 @@ it('formats superpay', () => {
         "20_days",
         "20 Business Days",
       ],
+      Array [
+        "30_days",
+        "30 Business Days",
+      ],
     ]
   `);
 });
diff --git a/src/__tests__/index.spec.ts b/src/__tests__/index.spec.ts
index c64b3f0..377be99 100644
--- a/src/__tests__/index.spec.ts
+++ b/src/__tests__/index.spec.ts
@@ -84,6 +84,7 @@ it('exports public api', () => {
         "10_days",
         "15_days",
         "20_days",
+        "30_days",
       ],
       "VEHICLE_TYPES": Array [
         "sedan",