diff --git a/.env.example b/.env.example
index 7b8872b69..6190dfb03 100644
--- a/.env.example
+++ b/.env.example
@@ -13,6 +13,10 @@ NEXT_PRIVATE_ENCRYPTION_SECONDARY_KEY="DEADBEEF"
 # https://docs.documenso.com/developers/self-hosting/setting-up-oauth-providers#google-oauth-gmail
 NEXT_PRIVATE_GOOGLE_CLIENT_ID=""
 NEXT_PRIVATE_GOOGLE_CLIENT_SECRET=""
+# Find documentation on setting up Microsoft OAuth here:
+# https://docs.documenso.com/developers/self-hosting/setting-up-oauth-providers#microsoft-oauth-azure-ad
+NEXT_PRIVATE_MICROSOFT_CLIENT_ID=""
+NEXT_PRIVATE_MICROSOFT_CLIENT_SECRET=""
 
 NEXT_PRIVATE_OIDC_WELL_KNOWN=""
 NEXT_PRIVATE_OIDC_CLIENT_ID=""
diff --git a/apps/documentation/pages/developers/self-hosting/setting-up-oauth-providers.mdx b/apps/documentation/pages/developers/self-hosting/setting-up-oauth-providers.mdx
index 0ba359142..efebb4092 100644
--- a/apps/documentation/pages/developers/self-hosting/setting-up-oauth-providers.mdx
+++ b/apps/documentation/pages/developers/self-hosting/setting-up-oauth-providers.mdx
@@ -27,3 +27,33 @@ NEXT_PRIVATE_GOOGLE_CLIENT_SECRET=<your-client-secret>
 ```
 
 Finally verify the signing in with Google works by signing in with your Google account and checking the email address in your profile.
+
+## Microsoft OAuth (Azure AD)
+
+To use Microsoft OAuth, you will need to create an Azure AD application registration in the Microsoft Azure portal. This will allow users to sign in with their Microsoft accounts.
+
+### Create and configure a new Azure AD application
+
+1. Go to the [Azure Portal](https://portal.azure.com/)
+2. Navigate to **Azure Active Directory** (or **Microsoft Entra ID** in newer Azure portals)
+3. In the left sidebar, click **App registrations**
+4. Click **New registration**
+5. Enter a name for your application (e.g., "Documenso")
+6. Under **Supported account types**, select **Accounts in any organizational directory (Any Azure AD directory - Multitenant) and personal Microsoft accounts (e.g. Skype, Xbox)** to allow any Microsoft account to sign in
+7. Under **Redirect URI**, select **Web** and enter: `https://<documenso-domain>/api/auth/callback/microsoft`
+8. Click **Register**
+
+### Configure the application
+
+1. After registration, you'll be taken to the app's overview page
+2. Copy the **Application (client) ID** - this will be your `NEXT_PRIVATE_MICROSOFT_CLIENT_ID`
+3. In the left sidebar, click **Certificates & secrets**
+4. Under **Client secrets**, click **New client secret**
+5. Add a description and select an expiration period
+6. Click **Add** and copy the **Value** (not the Secret ID) - this will be your `NEXT_PRIVATE_MICROSOFT_CLIENT_SECRET`
+7. In the Documenso environment variables, set the following:
+
+```
+NEXT_PRIVATE_MICROSOFT_CLIENT_ID=<your-application-client-id>
+NEXT_PRIVATE_MICROSOFT_CLIENT_SECRET=<your-client-secret-value>
+```
diff --git a/apps/remix/app/components/forms/signin.tsx b/apps/remix/app/components/forms/signin.tsx
index a9b7000ea..3ce7a935b 100644
--- a/apps/remix/app/components/forms/signin.tsx
+++ b/apps/remix/app/components/forms/signin.tsx
@@ -70,6 +70,7 @@ export type SignInFormProps = {
   className?: string;
   initialEmail?: string;
   isGoogleSSOEnabled?: boolean;
+  isMicrosoftSSOEnabled?: boolean;
   isOIDCSSOEnabled?: boolean;
   oidcProviderLabel?: string;
   returnTo?: string;
@@ -79,6 +80,7 @@ export const SignInForm = ({
   className,
   initialEmail,
   isGoogleSSOEnabled,
+  isMicrosoftSSOEnabled,
   isOIDCSSOEnabled,
   oidcProviderLabel,
   returnTo,
@@ -95,6 +97,8 @@ export const SignInForm = ({
     'totp' | 'backup'
   >('totp');
 
+  const hasSocialAuthEnabled = isGoogleSSOEnabled || isMicrosoftSSOEnabled || isOIDCSSOEnabled;
+
   const [isPasskeyLoading, setIsPasskeyLoading] = useState(false);
 
   const redirectPath = useMemo(() => {
@@ -271,6 +275,22 @@ export const SignInForm = ({
     }
   };
 
+  const onSignInWithMicrosoftClick = async () => {
+    try {
+      await authClient.microsoft.signIn({
+        redirectPath,
+      });
+    } catch (err) {
+      toast({
+        title: _(msg`An unknown error occurred`),
+        description: _(
+          msg`We encountered an unknown error while attempting to sign you In. Please try again later.`,
+        ),
+        variant: 'destructive',
+      });
+    }
+  };
+
   const onSignInWithOIDCClick = async () => {
     try {
       await authClient.oidc.signIn({
@@ -363,7 +383,7 @@ export const SignInForm = ({
             {isSubmitting ? <Trans>Signing in...</Trans> : <Trans>Sign In</Trans>}
           </Button>
 
-          {(isGoogleSSOEnabled || isOIDCSSOEnabled) && (
+          {hasSocialAuthEnabled && (
             <div className="relative flex items-center justify-center gap-x-4 py-2 text-xs uppercase">
               <div className="bg-border h-px flex-1" />
               <span className="text-muted-foreground bg-transparent">
@@ -387,6 +407,20 @@ export const SignInForm = ({
             </Button>
           )}
 
+          {isMicrosoftSSOEnabled && (
+            <Button
+              type="button"
+              size="lg"
+              variant="outline"
+              className="bg-background text-muted-foreground border"
+              disabled={isSubmitting}
+              onClick={onSignInWithMicrosoftClick}
+            >
+              <img className="mr-2 h-4 w-4" alt="Microsoft Logo" src={'/static/microsoft.svg'} />
+              Microsoft
+            </Button>
+          )}
+
           {isOIDCSSOEnabled && (
             <Button
               type="button"
diff --git a/apps/remix/app/components/forms/signup.tsx b/apps/remix/app/components/forms/signup.tsx
index 9502e44ce..0dbd7cc67 100644
--- a/apps/remix/app/components/forms/signup.tsx
+++ b/apps/remix/app/components/forms/signup.tsx
@@ -66,6 +66,7 @@ export type SignUpFormProps = {
   className?: string;
   initialEmail?: string;
   isGoogleSSOEnabled?: boolean;
+  isMicrosoftSSOEnabled?: boolean;
   isOIDCSSOEnabled?: boolean;
 };
 
@@ -73,6 +74,7 @@ export const SignUpForm = ({
   className,
   initialEmail,
   isGoogleSSOEnabled,
+  isMicrosoftSSOEnabled,
   isOIDCSSOEnabled,
 }: SignUpFormProps) => {
   const { _ } = useLingui();
@@ -84,6 +86,8 @@ export const SignUpForm = ({
 
   const utmSrc = searchParams.get('utm_source') ?? null;
 
+  const hasSocialAuthEnabled = isGoogleSSOEnabled || isMicrosoftSSOEnabled || isOIDCSSOEnabled;
+
   const form = useForm<TSignUpFormSchema>({
     values: {
       name: '',
@@ -148,6 +152,20 @@ export const SignUpForm = ({
     }
   };
 
+  const onSignUpWithMicrosoftClick = async () => {
+    try {
+      await authClient.microsoft.signIn();
+    } catch (err) {
+      toast({
+        title: _(msg`An unknown error occurred`),
+        description: _(
+          msg`We encountered an unknown error while attempting to sign you Up. Please try again later.`,
+        ),
+        variant: 'destructive',
+      });
+    }
+  };
+
   const onSignUpWithOIDCClick = async () => {
     try {
       await authClient.oidc.signIn();
@@ -227,7 +245,7 @@ export const SignUpForm = ({
             <fieldset
               className={cn(
                 'flex h-[550px] w-full flex-col gap-y-4',
-                (isGoogleSSOEnabled || isOIDCSSOEnabled) && 'h-[650px]',
+                hasSocialAuthEnabled && 'h-[650px]',
               )}
               disabled={isSubmitting}
             >
@@ -302,7 +320,7 @@ export const SignUpForm = ({
                 )}
               />
 
-              {(isGoogleSSOEnabled || isOIDCSSOEnabled) && (
+              {hasSocialAuthEnabled && (
                 <>
                   <div className="relative flex items-center justify-center gap-x-4 py-2 text-xs uppercase">
                     <div className="bg-border h-px flex-1" />
@@ -330,6 +348,26 @@ export const SignUpForm = ({
                 </>
               )}
 
+              {isMicrosoftSSOEnabled && (
+                <>
+                  <Button
+                    type="button"
+                    size="lg"
+                    variant={'outline'}
+                    className="bg-background text-muted-foreground border"
+                    disabled={isSubmitting}
+                    onClick={onSignUpWithMicrosoftClick}
+                  >
+                    <img
+                      className="mr-2 h-4 w-4"
+                      alt="Microsoft Logo"
+                      src={'/static/microsoft.svg'}
+                    />
+                    <Trans>Sign Up with Microsoft</Trans>
+                  </Button>
+                </>
+              )}
+
               {isOIDCSSOEnabled && (
                 <>
                   <Button
diff --git a/apps/remix/app/routes/_unauthenticated+/signin.tsx b/apps/remix/app/routes/_unauthenticated+/signin.tsx
index 99bad06e6..8fd9a200a 100644
--- a/apps/remix/app/routes/_unauthenticated+/signin.tsx
+++ b/apps/remix/app/routes/_unauthenticated+/signin.tsx
@@ -4,6 +4,7 @@ import { Link, redirect } from 'react-router';
 import { getOptionalSession } from '@documenso/auth/server/lib/utils/get-session';
 import {
   IS_GOOGLE_SSO_ENABLED,
+  IS_MICROSOFT_SSO_ENABLED,
   IS_OIDC_SSO_ENABLED,
   OIDC_PROVIDER_LABEL,
 } from '@documenso/lib/constants/auth';
@@ -23,6 +24,7 @@ export async function loader({ request }: Route.LoaderArgs) {
 
   // SSR env variables.
   const isGoogleSSOEnabled = IS_GOOGLE_SSO_ENABLED;
+  const isMicrosoftSSOEnabled = IS_MICROSOFT_SSO_ENABLED;
   const isOIDCSSOEnabled = IS_OIDC_SSO_ENABLED;
   const oidcProviderLabel = OIDC_PROVIDER_LABEL;
 
@@ -32,13 +34,15 @@ export async function loader({ request }: Route.LoaderArgs) {
 
   return {
     isGoogleSSOEnabled,
+    isMicrosoftSSOEnabled,
     isOIDCSSOEnabled,
     oidcProviderLabel,
   };
 }
 
 export default function SignIn({ loaderData }: Route.ComponentProps) {
-  const { isGoogleSSOEnabled, isOIDCSSOEnabled, oidcProviderLabel } = loaderData;
+  const { isGoogleSSOEnabled, isMicrosoftSSOEnabled, isOIDCSSOEnabled, oidcProviderLabel } =
+    loaderData;
 
   return (
     <div className="w-screen max-w-lg px-4">
@@ -54,6 +58,7 @@ export default function SignIn({ loaderData }: Route.ComponentProps) {
 
         <SignInForm
           isGoogleSSOEnabled={isGoogleSSOEnabled}
+          isMicrosoftSSOEnabled={isMicrosoftSSOEnabled}
           isOIDCSSOEnabled={isOIDCSSOEnabled}
           oidcProviderLabel={oidcProviderLabel}
         />
diff --git a/apps/remix/app/routes/_unauthenticated+/signup.tsx b/apps/remix/app/routes/_unauthenticated+/signup.tsx
index 0f7e8e953..699251a41 100644
--- a/apps/remix/app/routes/_unauthenticated+/signup.tsx
+++ b/apps/remix/app/routes/_unauthenticated+/signup.tsx
@@ -1,6 +1,10 @@
 import { redirect } from 'react-router';
 
-import { IS_GOOGLE_SSO_ENABLED, IS_OIDC_SSO_ENABLED } from '@documenso/lib/constants/auth';
+import {
+  IS_GOOGLE_SSO_ENABLED,
+  IS_MICROSOFT_SSO_ENABLED,
+  IS_OIDC_SSO_ENABLED,
+} from '@documenso/lib/constants/auth';
 import { env } from '@documenso/lib/utils/env';
 
 import { SignUpForm } from '~/components/forms/signup';
@@ -17,6 +21,7 @@ export function loader() {
 
   // SSR env variables.
   const isGoogleSSOEnabled = IS_GOOGLE_SSO_ENABLED;
+  const isMicrosoftSSOEnabled = IS_MICROSOFT_SSO_ENABLED;
   const isOIDCSSOEnabled = IS_OIDC_SSO_ENABLED;
 
   if (NEXT_PUBLIC_DISABLE_SIGNUP === 'true') {
@@ -25,17 +30,19 @@ export function loader() {
 
   return {
     isGoogleSSOEnabled,
+    isMicrosoftSSOEnabled,
     isOIDCSSOEnabled,
   };
 }
 
 export default function SignUp({ loaderData }: Route.ComponentProps) {
-  const { isGoogleSSOEnabled, isOIDCSSOEnabled } = loaderData;
+  const { isGoogleSSOEnabled, isMicrosoftSSOEnabled, isOIDCSSOEnabled } = loaderData;
 
   return (
     <SignUpForm
       className="w-screen max-w-screen-2xl px-4 md:px-16 lg:-my-16"
       isGoogleSSOEnabled={isGoogleSSOEnabled}
+      isMicrosoftSSOEnabled={isMicrosoftSSOEnabled}
       isOIDCSSOEnabled={isOIDCSSOEnabled}
     />
   );
diff --git a/apps/remix/public/static/microsoft.svg b/apps/remix/public/static/microsoft.svg
new file mode 100644
index 000000000..86b5ac6c0
--- /dev/null
+++ b/apps/remix/public/static/microsoft.svg
@@ -0,0 +1 @@
+<svg viewBox="0 0 256 256" xmlns="http://www.w3.org/2000/svg" width="256" height="256" preserveAspectRatio="xMidYMid"><path fill="#F1511B" d="M121.666 121.666H0V0h121.666z"/><path fill="#80CC28" d="M256 121.666H134.335V0H256z"/><path fill="#00ADEF" d="M121.663 256.002H0V134.336h121.663z"/><path fill="#FBBC09" d="M256 256.002H134.335V134.336H256z"/></svg>
\ No newline at end of file
diff --git a/packages/auth/client/index.ts b/packages/auth/client/index.ts
index 5acf23c4c..c651f8dc0 100644
--- a/packages/auth/client/index.ts
+++ b/packages/auth/client/index.ts
@@ -222,6 +222,22 @@ export class AuthClient {
     },
   };
 
+  public microsoft = {
+    signIn: async ({ redirectPath }: { redirectPath?: string } = {}) => {
+      const response = await this.client['oauth'].authorize.microsoft.$post({
+        json: { redirectPath },
+      });
+
+      await this.handleError(response);
+
+      const data = await response.json();
+
+      if (data.redirectUrl) {
+        window.location.href = data.redirectUrl;
+      }
+    },
+  };
+
   public oidc = {
     signIn: async ({ redirectPath }: { redirectPath?: string } = {}) => {
       const response = await this.client['oauth'].authorize.oidc.$post({ json: { redirectPath } });
diff --git a/packages/auth/server/config.ts b/packages/auth/server/config.ts
index 344b1b807..57234294b 100644
--- a/packages/auth/server/config.ts
+++ b/packages/auth/server/config.ts
@@ -26,6 +26,16 @@ export const GoogleAuthOptions: OAuthClientOptions = {
   bypassEmailVerification: false,
 };
 
+export const MicrosoftAuthOptions: OAuthClientOptions = {
+  id: 'microsoft',
+  scope: ['openid', 'email', 'profile'],
+  clientId: env('NEXT_PRIVATE_MICROSOFT_CLIENT_ID') ?? '',
+  clientSecret: env('NEXT_PRIVATE_MICROSOFT_CLIENT_SECRET') ?? '',
+  redirectUrl: `${NEXT_PUBLIC_WEBAPP_URL()}/api/auth/callback/microsoft`,
+  wellKnownUrl: 'https://login.microsoftonline.com/common/v2.0/.well-known/openid-configuration',
+  bypassEmailVerification: false,
+};
+
 export const OidcAuthOptions: OAuthClientOptions = {
   id: 'oidc',
   scope: ['openid', 'email', 'profile'],
diff --git a/packages/auth/server/routes/callback.ts b/packages/auth/server/routes/callback.ts
index d19309796..54f306d72 100644
--- a/packages/auth/server/routes/callback.ts
+++ b/packages/auth/server/routes/callback.ts
@@ -2,7 +2,7 @@ import { Hono } from 'hono';
 
 import { AppError } from '@documenso/lib/errors/app-error';
 
-import { GoogleAuthOptions, OidcAuthOptions } from '../config';
+import { GoogleAuthOptions, MicrosoftAuthOptions, OidcAuthOptions } from '../config';
 import { handleOAuthCallbackUrl } from '../lib/utils/handle-oauth-callback-url';
 import { handleOAuthOrganisationCallbackUrl } from '../lib/utils/handle-oauth-organisation-callback-url';
 import type { HonoAuthContext } from '../types/context';
@@ -45,4 +45,11 @@ export const callbackRoute = new Hono<HonoAuthContext>()
   /**
    * Google callback verification.
    */
-  .get('/google', async (c) => handleOAuthCallbackUrl({ c, clientOptions: GoogleAuthOptions }));
+  .get('/google', async (c) => handleOAuthCallbackUrl({ c, clientOptions: GoogleAuthOptions }))
+
+  /**
+   * Microsoft callback verification.
+   */
+  .get('/microsoft', async (c) =>
+    handleOAuthCallbackUrl({ c, clientOptions: MicrosoftAuthOptions }),
+  );
diff --git a/packages/auth/server/routes/oauth.ts b/packages/auth/server/routes/oauth.ts
index 9ac0f89fc..1f5c7baf2 100644
--- a/packages/auth/server/routes/oauth.ts
+++ b/packages/auth/server/routes/oauth.ts
@@ -2,7 +2,7 @@ import { sValidator } from '@hono/standard-validator';
 import { Hono } from 'hono';
 import { z } from 'zod';
 
-import { GoogleAuthOptions, OidcAuthOptions } from '../config';
+import { GoogleAuthOptions, MicrosoftAuthOptions, OidcAuthOptions } from '../config';
 import { handleOAuthAuthorizeUrl } from '../lib/utils/handle-oauth-authorize-url';
 import { getOrganisationAuthenticationPortalOptions } from '../lib/utils/organisation-portal';
 import type { HonoAuthContext } from '../types/context';
@@ -24,6 +24,20 @@ export const oauthRoute = new Hono<HonoAuthContext>()
       redirectPath,
     });
   })
+
+  /**
+   * Microsoft authorize endpoint.
+   */
+  .post('/authorize/microsoft', sValidator('json', ZOAuthAuthorizeSchema), async (c) => {
+    const { redirectPath } = c.req.valid('json');
+
+    return handleOAuthAuthorizeUrl({
+      c,
+      clientOptions: MicrosoftAuthOptions,
+      redirectPath,
+    });
+  })
+
   /**
    * OIDC authorize endpoint.
    */
diff --git a/packages/lib/constants/auth.ts b/packages/lib/constants/auth.ts
index 4f78f78b0..3d954057c 100644
--- a/packages/lib/constants/auth.ts
+++ b/packages/lib/constants/auth.ts
@@ -6,6 +6,7 @@ export const SALT_ROUNDS = 12;
 export const IDENTITY_PROVIDER_NAME: Record<string, string> = {
   DOCUMENSO: 'Documenso',
   GOOGLE: 'Google',
+  MICROSOFT: 'Microsoft',
   OIDC: 'OIDC',
 };
 
@@ -13,6 +14,10 @@ export const IS_GOOGLE_SSO_ENABLED = Boolean(
   env('NEXT_PRIVATE_GOOGLE_CLIENT_ID') && env('NEXT_PRIVATE_GOOGLE_CLIENT_SECRET'),
 );
 
+export const IS_MICROSOFT_SSO_ENABLED = Boolean(
+  env('NEXT_PRIVATE_MICROSOFT_CLIENT_ID') && env('NEXT_PRIVATE_MICROSOFT_CLIENT_SECRET'),
+);
+
 export const IS_OIDC_SSO_ENABLED = Boolean(
   env('NEXT_PRIVATE_OIDC_WELL_KNOWN') &&
     env('NEXT_PRIVATE_OIDC_CLIENT_ID') &&
diff --git a/packages/ui/primitives/signature-pad/signature-pad.tsx b/packages/ui/primitives/signature-pad/signature-pad.tsx
index 20df8d0e1..24e4f9bad 100644
--- a/packages/ui/primitives/signature-pad/signature-pad.tsx
+++ b/packages/ui/primitives/signature-pad/signature-pad.tsx
@@ -1,9 +1,9 @@
 import type { HTMLAttributes } from 'react';
 import { useState } from 'react';
 
+import { Trans } from '@lingui/react/macro';
 import { KeyboardIcon, UploadCloudIcon } from 'lucide-react';
 import { match } from 'ts-pattern';
-import { Trans } from '@lingui/react/macro';
 
 import { DocumentSignatureType } from '@documenso/lib/constants/document';
 import { isBase64Image } from '@documenso/lib/constants/signatures';