diff --git a/CHANGELOG.md b/CHANGELOG.md
index a06b0c8..09d5742 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 > Entries before 1.2.0 were not tracked in this file; see the git history for details.
 
+## [1.5.0] — 2026-10-06
+### Added
+- `FamisClient.getBillCodes(context)` — fetches `GET /billcodes`, with a new `BillCode`
+  model. (EY)
+
 ## [1.4.1] — 2026-08-14
 ### Fixed
 - Non-JSON error bodies (e.g. a plain-text `"Service Unavailable"` on a FAMIS 503) no
diff --git a/famis_client.ts b/famis_client.ts
index ea3e1c1..b78dacc 100644
--- a/famis_client.ts
+++ b/famis_client.ts
@@ -18,6 +18,7 @@ import {
   AccountSegment,
   AccountSegmentValue,
   ActivityGroup,
+  BillCode,
   AdjustmentTransactionResponse,
   AdjustmentType,
   Asset,
@@ -1076,6 +1077,13 @@ export class FamisClient {
 
   //#endregion
 
+  //#region bill codes
+  async getBillCodes(context: QueryContext): Promise<Result<BillCode>> {
+    return this.getAll<BillCode>(context, 'billcodes');
+  }
+
+  //#endregion
+
   //#region property bill code associations
   async getPropertyBillCodeAssociations(
     context: QueryContext,
diff --git a/model/famis_models.ts b/model/famis_models.ts
index ef51d57..9e16b8a 100644
--- a/model/famis_models.ts
+++ b/model/famis_models.ts
@@ -2459,7 +2459,7 @@ export interface ChargeType {
 export interface BillCode {
   Id: number;
   Description: string;
-  UpdateDate: Date;
+  UpdateDate: string;
   UpdatedById: number;
   UpdatedByExternalId: string;
   Active: boolean;
diff --git a/package.json b/package.json
index a113baf..380a310 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "facility360",
-  "version": "1.4.1",
+  "version": "1.5.0",
   "description": "A Node based 360Facility client SDK",
   "main": "dist/index.js",
   "files": [
diff --git a/tests/integration.test.ts b/tests/integration.test.ts
index 59ac159..b0e0b7a 100644
--- a/tests/integration.test.ts
+++ b/tests/integration.test.ts
@@ -55,6 +55,12 @@ describe('Lists', async () => {
     });
   });
 
+  it('should fetch all bill codes', async function() {
+    const resp = await famisClient.getBillCodes(baseContext);
+    expect(resp).toBeTruthy();
+    expect(resp.results).toBeTruthy();
+  });
+
   it('should fetch all account segments', async function() {
     const resp = await famisClient.getAccountSegments(baseContext);
     expect(resp).toBeTruthy();