Switching between multiple Gmail accounts: what it does and where it breaks down
To switch between Gmail accounts in a browser, click the profile picture in the top right of Gmail, then click the account you want. If the second account is not in that menu yet, choose "Add account" from the same menu and sign in once. After that, both accounts stay signed in and the switch takes one click. That is the whole procedure, and for many people it is enough. This guide covers the exact steps, the URL shortcut that makes switching faster, and the four situations where the switcher sends mail, links, or calendar invites to the wrong account, along with the setups that hold up better when that starts to happen.
How to switch between Gmail accounts, step by step
Google documents the procedure on its help page for signing in to multiple accounts at once (checked on October 18, 2026). The steps below follow the names Google uses on screen.
Add the second account
- Open Gmail in your browser and sign in with the first account.
- In the top right, select your profile image or initial.
- In the menu, choose Add account.
- Sign in with the second account. A new tab opens on its inbox.
Repeat this for every account you want available. There is no separate setting to turn on.
Switch between them
- In the top right of Gmail, select your profile image or initial.
- Select the account you want to use.
The other account opens in a new tab. Both stay signed in, so switching back is the same two clicks.
Use the number in the address bar
Look at the URL after you switch. The first account opens at mail.google.com/mail/u/0/, the second at /u/1/, the third at /u/2/. Changing that number in the address bar switches accounts without opening the menu. This is the shortcut that circulates on forums, and it works. Bookmarking /u/1/ for a work inbox is a common next step.
Sign out of one account or all of them
The same profile menu offers Sign out or Sign out of all accounts. To stop an account from appearing in the list at all, Google's page describes going to myaccount.google.com, choosing Sign out of all accounts, then Remove an account, and selecting Remove next to the account.
What the switcher actually is
The account switcher is a convenience feature. Google states its purpose directly: you can switch between accounts without signing out and back in again. It was never designed to keep accounts apart from each other.
All signed-in accounts live in the same browser storage. They share one set of cookies, one history, one set of extensions, and one downloads folder. The /u/0/, /u/1/ numbers are positions in a list kept by those cookies. They are not separate identities.
Two consequences follow from that design.
The numbers follow sign-in order, not the account. Sign out of everything and sign back in with the accounts in a different order, and the account that was /u/1/ becomes /u/0/. A bookmark that pointed at the work inbox now opens the personal one.
One account is always the default. Google's help page says that in many cases your default account is the one you signed in with first. The default account is what Google falls back on whenever it cannot tell which account a request belongs to. Most of the problems people search for start here.
Inside a tab that already shows the right account, everything works as expected. Labels, filters, signatures, and search apply to the account in the top right. Calendar and Drive follow the same /u/N/ numbering, so /u/1/ in Gmail and /u/1/ in Calendar are the same account. The trouble starts when something arrives from outside that tab.
Where switching breaks down
Links from other apps open in the default account
A Google Docs link in Slack, a Calendar invite in Apple Mail, a shared Drive folder from a client. None of these URLs carry a /u/N/ number, so the browser opens them under the default account. If the file was shared with the account at /u/2/, the result is a "You need access" page. The fix is to switch accounts on that page or edit the number by hand, several times a day.
New windows guess, and sometimes guess wrong
Google's own help page describes this case: if you are signed in to two accounts and open a new browser window, Google is not sure which account you want, and settings from the default account, such as Web & App Activity and Ads Personalization, might apply. The same page notes that Google Play may show content from the default account's country when accounts from different countries are signed in.
Notifications do not say which account they belong to
Every account shares one browser, one tab style, and one favicon. A desktop notification from Gmail in Chrome looks the same for the work inbox and the personal one. The sorting happens in the reader's head, and that is where replies from the wrong address come from.
The phone is a separate system
The Gmail app on iPhone and Android switches accounts by tapping or swiping on the profile picture. It does not share the desktop's default account or numbering. Any rule set up on the Mac has to be set up again on the phone.
Consolidating instead of switching, and what changes in January 2027
One way to avoid switching is to bring every mailbox into one Gmail account. Google is narrowing that route. Its page on changes to third-party email account support (checked October 18, 2026) lists the timeline:
| Date | What happens |
|---|---|
| Q3 2026 | Notice period begins for "Send as" with third-party addresses |
| Q3 to Q4 2026 | Transition period. Gmail may restrict new configurations |
| January 2027 | "Send as" for third-party accounts, Gmailify, and POP fetching are removed |
What is removed: sending as a third-party address such as @hotmail.com or @yahoo.com from Gmail on the web or in the Gmail apps, Gmailify, and "Check mail from other accounts" by POP.
What stays: "Send as" for other Gmail addresses and Google Workspace aliases, access to non-Google accounts in the Gmail mobile app, and access to Gmail from other mail clients through IMAP or POP. Messages already imported stay in the mailbox.
So consolidation still works if every address is a Gmail or Workspace address. If one of them is an Outlook, Yahoo, or custom-domain mailbox that is not on Google Workspace, any setup built today needs a different plan by January 2027. Google's suggested paths are the provider's own website or app, a desktop mail client using IMAP and SMTP, or the Gmail mobile app.
Delegation solves a different problem
Gmail delegation is sometimes suggested as a way to avoid switching. Google's delegation help page (checked October 18, 2026) sets the limits: a personal @gmail.com account can add up to 10 delegates, and a work or school account up to 1,000. The invitation expires after a week, and it can take up to 24 hours before a delegate can use the account.
Two details rule it out as a switching replacement for one person with several identities:
- When a delegate sends a message, the delegate's own email address appears. Recipients see who sent it.
- Many features are unavailable to delegates, including Google Account settings, Chat, Meet, Smart Compose, Smart Reply, and Gemini in Gmail.
Delegation is built for an owner and an assistant sharing one inbox. It is not a quieter way to run two of your own accounts. Delegation is set up from Gmail on a computer, under Settings, See all settings, Accounts and Import, "Grant access to your account". It cannot be added from the Gmail app.
Setups that hold up better, compared
When links keep landing in the wrong inbox, the fix is to put each account in its own storage instead of its own list position. These are the options available on a Mac.
| Setup | What separates the accounts | Where an outside link opens | Cost |
|---|---|---|---|
| Google account switcher | List position in one set of cookies | Default account | Free |
| Chrome profiles | Separate Chrome profile per account | Profile window last used | Free |
| Safari profiles | Separate Safari profile per account | Profile window last used, unless a profile is set for that site | Free |
| Two different browsers | Separate app per account | Default browser only | Free |
| A browser that keeps each web app in its own window | Separate session per app and account | The app and account that own the link | Varies |
Chrome profiles
Google's help page on Chrome profiles says profiles keep Chrome info separate, like bookmarks, history, passwords, and other settings, and lists keeping work and personal accounts separate as one of the reasons to use them. To add one, select Profile in the top right of Chrome, then Add Chrome profile. Each profile gets its own window, name, and color. Deleting a profile erases its bookmarks, history, and passwords from the computer, so export anything needed first.
Safari profiles
Safari has the same idea. Apple's guide to creating profiles in Safari on Mac gives the path: Safari, Settings, Profiles, then Start Using Profiles for the first one. A new window for a profile opens from File, New Window. Passwords stored in iCloud Keychain are available in every profile, which is convenient but means the password store is not split.
Safari also answers part of the link problem. Apple's page on using profiles in Safari on Mac explains that links from outside Safari open in the profile used most recently, and that specific websites can be tied to a specific profile. Open the site first, then choose Safari, Settings, Websites, and select Open Links With Profile in the sidebar. Pick the profile from the pop-up menu next to the site. This applies to links opened from Mail, Messages, Finder, and other apps. The rule works per website, so it suits a company intranet or a client portal. Gmail and Docs links all start with google.com whichever account they belong to, so the rule can send every Google link to one profile, but it cannot split them between two accounts.
The trade-off with profiles
Profiles fix the shared-cookie problem. They do not fix link routing on their own, and each account becomes a separate window to arrange. Two accounts are easy. Five accounts across Gmail, Slack, and Notion means five windows of each.
A browser that keeps each web app in its own window goes one step further. Each app and account gets its own session, and links are matched to the app and account they belong to. The cost is a separate app to install and, for multiple accounts on one service, usually a paid plan. Pages such as Compared with Shift and Compared with Wavebox lay out how products in this category differ.
What to change first
Count how many times a day a link opens in the wrong Gmail account. If it happens rarely, keep the built-in switcher and use the /u/N/ URL. If it happens daily, move the account with real consequences, usually the client or work account, into its own Chrome or Safari profile first. If the count is still high after that, SpaceDeck is one macOS option: in its app list, right-click Gmail and choose "Add as Another Account (separate session)", which is a Pro feature available during the 14-day trial, with plans listed on the pricing page.
Frequently asked questions
How do I switch Gmail accounts without signing out?
Add each account once through the profile picture menu in the top right of Gmail, using "Add account". After that, select the profile picture and click the other account. Both stay signed in, and the other account opens in a new tab.
Why does Gmail keep opening my personal account instead of my work account?
Links from other apps carry no account number, so Google opens them in the default account, which in many cases is the one signed in first. Signing out of all accounts and signing in to the work account first makes it the default. Moving the work account to its own browser profile removes the guesswork.
Can I change which Gmail account is the default?
There is no setting for it on a computer. Sign out of all accounts from the profile menu, then sign in to the account you want as the default before adding the others. The order of /u/0/, /u/1/ and so on changes with it, so update any bookmarks that use those numbers.
Will the January 2027 Gmail change stop me sending from my other Gmail address?
No. Google states that "Send as" for other Gmail addresses and Google Workspace aliases is not affected. The removal applies to third-party addresses such as Outlook or Yahoo, to Gmailify, and to POP fetching on the web.
Is a Chrome profile safer than the account switcher for client work?
It keeps cookies, history, and passwords for each profile separate, which the switcher does not. Anyone with access to the Mac can still switch to any Chrome profile on it, as Google notes, so profiles separate accounts from each other, not from other people using the same computer.