diff --git a/src/features/auth/model/stores/authStore/authStore.spec.ts b/src/features/auth/model/stores/authStore/authStore.spec.ts
index 1398b53..eba0cc9 100644
--- a/src/features/auth/model/stores/authStore/authStore.spec.ts
+++ b/src/features/auth/model/stores/authStore/authStore.spec.ts
@@ -22,6 +22,20 @@ describe("authStore", () => {
   });
   afterAll(() => server.close());
 
+  describe("setEmail", () => {
+    it("should set the email in formData", () => {
+      useAuthStore.getState().setEmail(MOCK_NEW_EMAIL);
+      expect(useAuthStore.getState().formData.email).toBe(MOCK_NEW_EMAIL);
+    });
+  });
+
+  describe("setPassword", () => {
+    it("should set the password in formData", () => {
+      useAuthStore.getState().setPassword(MOCK_PASSWORD);
+      expect(useAuthStore.getState().formData.password).toBe(MOCK_PASSWORD);
+    });
+  });
+
   describe("reset", () => {
     it("should reset the store to default state", () => {
       useAuthStore.getState().reset();
diff --git a/src/features/auth/model/stores/authStore/authStore.ts b/src/features/auth/model/stores/authStore/authStore.ts
index 6b6d36f..ccda162 100644
--- a/src/features/auth/model/stores/authStore/authStore.ts
+++ b/src/features/auth/model/stores/authStore/authStore.ts
@@ -5,6 +5,10 @@ import { callApi } from "shared/utils";
 import { UNEXPECTED_ERROR_MESSAGE } from "shared/api";
 
 export const defaultStoreState: Readonly<AuthStoreState> = {
+  formData: {
+    email: "",
+    password: "",
+  },
   user: undefined,
   status: "idle",
   error: null,
@@ -12,7 +16,17 @@ export const defaultStoreState: Readonly<AuthStoreState> = {
 
 export const useAuthStore = create<AuthStore>()((set) => ({
   ...defaultStoreState,
-  reset: () => set(defaultStoreState),
+
+  setEmail: (email: string) => {
+    set((state) => ({ formData: { ...state.formData, email } }));
+  },
+  setPassword: (password: string) => {
+    set((state) => ({ formData: { ...state.formData, password } }));
+  },
+  reset: () => {
+    set(defaultStoreState);
+  },
+
   login: async (loginData) => {
     set({ status: "loading" });
     try {
diff --git a/src/features/auth/model/types/store.ts b/src/features/auth/model/types/store.ts
index e6e356a..5dc9606 100644
--- a/src/features/auth/model/types/store.ts
+++ b/src/features/auth/model/types/store.ts
@@ -3,6 +3,10 @@ import type { AuthData, AuthStatus } from "./service";
 import type { ApiError } from "shared/utils";
 
 export interface AuthStoreState {
+  /**
+   * Form data for login/register forms
+   */
+  formData: AuthData;
   /**
    * User's credentials
    */
@@ -17,16 +21,14 @@ export interface AuthStoreState {
   error: ApiError | Error | null;
 }
 
-export type ResetAction = () => void;
-export type LoginAction = (data: AuthData) => Promise<void>;
-export type RegisterAction = (data: AuthData) => Promise<void>;
-export type LogoutAction = () => Promise<void>;
-
 export interface AuthStoreActions {
-  reset: ResetAction;
-  login: LoginAction;
-  register: RegisterAction;
-  logout: LogoutAction;
+  setEmail: (email: string) => void;
+  setPassword: (password: string) => void;
+  reset: () => void;
+
+  login: (data: AuthData) => Promise<void>;
+  register: (data: AuthData) => Promise<void>;
+  logout: () => Promise<void>;
 }
 
 export type AuthStore = AuthStoreState & AuthStoreActions;