diff --git a/src/Corporation/Actions.ts b/src/Corporation/Actions.ts
index 520d880cd..1ba08e444 100644
--- a/src/Corporation/Actions.ts
+++ b/src/Corporation/Actions.ts
@@ -348,10 +348,17 @@ export function PurchaseWarehouse(corp: ICorporation, division: IIndustry, city:
   corp.funds = corp.funds - CorporationConstants.WarehouseInitialCost;
 }
 
-export function UpgradeWarehouse(corp: ICorporation, division: IIndustry, warehouse: Warehouse): void {
-  const sizeUpgradeCost = CorporationConstants.WarehouseUpgradeBaseCost * Math.pow(1.07, warehouse.level + 1);
+export function UpgradeWarehouseCost(warehouse: Warehouse, amt: number): number {
+  return Array.from(Array(amt).keys()).reduce(
+    (acc, index) => acc + CorporationConstants.WarehouseUpgradeBaseCost * Math.pow(1.07, warehouse.level + 1 + index),
+    0,
+  );
+}
+
+export function UpgradeWarehouse(corp: ICorporation, division: IIndustry, warehouse: Warehouse, amt = 1): void {
+  const sizeUpgradeCost = UpgradeWarehouseCost(warehouse, amt);
   if (corp.funds < sizeUpgradeCost) return;
-  ++warehouse.level;
+  warehouse.level += amt;
   warehouse.updateSize(corp, division);
   corp.funds = corp.funds - sizeUpgradeCost;
 }
diff --git a/src/NetscriptFunctions/Corporation.ts b/src/NetscriptFunctions/Corporation.ts
index 97f6694c3..b193e558f 100644
--- a/src/NetscriptFunctions/Corporation.ts
+++ b/src/NetscriptFunctions/Corporation.ts
@@ -55,6 +55,7 @@ import {
   SetSmartSupplyUseLeftovers,
   LimitMaterialProduction,
   LimitProductProduction,
+  UpgradeWarehouseCost,
 } from "../Corporation/Actions";
 import { CorporationUnlockUpgrades } from "../Corporation/data/CorporationUnlockUpgrades";
 import { CorporationUpgrades } from "../Corporation/data/CorporationUpgrades";
@@ -316,12 +317,13 @@ export function NetscriptCorporation(
       checkAccess("getPurchaseWarehouseCost", 7);
       return CorporationConstants.WarehouseInitialCost;
     },
-    getUpgradeWarehouseCost: function (_divisionName: unknown, _cityName: unknown): number {
+    getUpgradeWarehouseCost: function (_divisionName: unknown, _cityName: unknown, _amt: unknown = 1): number {
       checkAccess("upgradeWarehouse", 7);
       const divisionName = helper.string("getUpgradeWarehouseCost", "divisionName", _divisionName);
       const cityName = helper.city("getUpgradeWarehouseCost", "cityName", _cityName);
+      const amt = helper.number("getUpgradeWarehouseCost", "amount", _amt);
       const warehouse = getWarehouse(divisionName, cityName);
-      return CorporationConstants.WarehouseUpgradeBaseCost * Math.pow(1.07, warehouse.level + 1);
+      return UpgradeWarehouseCost(warehouse, amt);
     },
     hasWarehouse: function (_divisionName: unknown, _cityName: unknown): boolean {
       checkAccess("hasWarehouse", 7);
@@ -382,12 +384,13 @@ export function NetscriptCorporation(
       const corporation = getCorporation();
       PurchaseWarehouse(corporation, getDivision(divisionName), cityName);
     },
-    upgradeWarehouse: function (_divisionName: unknown, _cityName: unknown): void {
+    upgradeWarehouse: function (_divisionName: unknown, _cityName: unknown, _amt: unknown): void {
       checkAccess("upgradeWarehouse", 7);
       const divisionName = helper.string("upgradeWarehouse", "divisionName", _divisionName);
       const cityName = helper.city("upgradeWarehouse", "cityName", _cityName);
+      const amt = helper.number("upgradeWarehouse", "amount", _amt);
       const corporation = getCorporation();
-      UpgradeWarehouse(corporation, getDivision(divisionName), getWarehouse(divisionName, cityName));
+      UpgradeWarehouse(corporation, getDivision(divisionName), getWarehouse(divisionName, cityName), amt);
     },
     sellMaterial: function (
       _divisionName: unknown,
diff --git a/src/ScriptEditor/NetscriptDefinitions.d.ts b/src/ScriptEditor/NetscriptDefinitions.d.ts
index 4d5ecaea0..7ff55fa17 100644
--- a/src/ScriptEditor/NetscriptDefinitions.d.ts
+++ b/src/ScriptEditor/NetscriptDefinitions.d.ts
@@ -6639,8 +6639,9 @@ export interface WarehouseAPI {
    * Upgrade warehouse
    * @param divisionName - Name of the division
    * @param cityName - Name of the city
+   * @param amt - amount of upgrades defaults to 1
    */
-  upgradeWarehouse(divisionName: string, cityName: string): void;
+  upgradeWarehouse(divisionName: string, cityName: string, amt: number): void;
   /**
    * Create a new product
    * @param divisionName - Name of the division
@@ -6679,9 +6680,12 @@ export interface WarehouseAPI {
   getPurchaseWarehouseCost(): number;
   /**
    * Gets the cost to upgrade a warehouse to the next level
+   * @param divisionName - Name of the division
+   * @param cityName - Name of the city
+   * @param amt - amount of upgrades defaults to 1
    * @returns cost to upgrade
    */
-  getUpgradeWarehouseCost(adivisionName: any, acityName: any): number;
+  getUpgradeWarehouseCost(adivisionName: any, acityName: any, amt: number): number;
   /**
    * Check if you have a warehouse in city
    * @returns true if warehouse is present, false if not