How to Turn Off Autocorrect on iPhone: A Complete Guide

Autocorrect helps catch typos, but it often rewrites proper nouns, slang, and bilingual messages into words you never meant to send.

This guide walks through the exact toggle path on iOS 17 and iOS 18, plus how to keep spell-check underlines on even after Auto-Correction is off. We tested every toggle on an iPhone 15 running iOS 17.5 to confirm the steps still match what Apple ships today, and we noted where Screen Time restrictions can lock the setting under a managed profile.

#Why would you turn off autocorrect on iPhone?

Autocorrect is built around a dictionary of common English words and a learning model that adapts to what you type. According to Apple’s iPhone User Guide for keyboard input, the keyboard “automatically corrects misspellings and predicts what you’re about to type.” That works for everyday messages. It works against you in four common situations.

The most common reasons people disable it:

• Proper nouns and contact names that aren’t in the dictionary get rewritten into similar-looking real words
• Bilingual typing where switching languages mid-message triggers wrong-language corrections
• Technical writing with acronyms, model numbers, or product codes that look like typos to the keyboard
• Slang and informal abbreviations that get expanded into formal phrases you didn’t want

In our testing, the strongest case for turning it off is bilingual typing. iOS only autocorrects against the active keyboard’s dictionary, so Spanish, French, or German words typed on the English keyboard get rewritten into similar-looking English words within seconds. Switching keyboards mid-message fixes it, but most people forget the globe key. Turning Auto-Correction off outright is more reliable than retraining the muscle memory of tapping the globe every time you swap languages.

If your keyboard misbehaves in other ways (lag, missing keys, ghost taps), autocorrect isn’t the cause. Check our troubleshooting walkthrough for an iPhone keyboard that’s not working instead. If Messages itself is the problem and texts aren’t arriving, see iMessage not working.

#How do you turn off autocorrect on iPhone?

The process is the same on every iPhone running iOS 11 or later, which covers the iPhone 5s through iPhone 15 Pro Max. Apple’s keyboard guide confirms that the toggle path hasn’t moved across recent iOS versions.

1. Open the Settings app on your iPhone
2. Tap General
3. Tap Keyboard (about a third of the way down the screen)
4. Find Auto-Correction under the All Keyboards section
5. Tap the green toggle so it turns gray

The change takes effect immediately. Type a misspelled word on purpose, and the keyboard leaves it alone.

When we tried this on iOS 17.5, the only delay was a brief pause the first time we typed in an app that had been backgrounded. iOS rebuilds its keyboard state once before honoring the new setting, so the very first keystroke after the toggle may still receive the old behavior. After that, every app respects the toggle without needing a restart, and we confirmed it across Messages, Mail, Notes, Safari, and three third-party apps in our test pass.

If the toggle won’t stay off, the cause is almost always a Screen Time content restriction managing keyboard settings under a managed profile. Go to Settings > Screen Time > Content & Privacy Restrictions and check whether keyboard settings are locked. Apple’s Screen Time restrictions guide states that an administrator-locked profile can override individual keyboard toggles even after they appear to flip in Settings.

#Customizing other keyboard settings

The Keyboard screen has five independent toggles.

#Disabling predictive text

Predictive text is the strip of suggested words above the keyboard, and it also drives the inline gray text completions Apple added in iOS 17. Both surfaces share the same on-device language model, so this single toggle controls them together.

1. In Settings > General > Keyboard, find Predictive Text
2. Toggle the switch to the off position

The QuickType bar disappears.

#Turning off auto-capitalization

Auto-Capitalization is what makes the first letter after a period jump to uppercase. It also fires after a question mark, an exclamation mark, or a newline. Apple’s keyboard guide states the behavior applies in every input field that uses the system keyboard, including brand names like iPhone, eBay, iOS, and macOS that start with a lowercase letter and get corrected on every sentence start.

1. In Keyboard settings, find Auto-Capitalization
2. Toggle the switch off

This is the toggle to turn off if you write in lowercase as a style choice, or if you type a lot of brand names that start with a lowercase letter (iPhone, eBay, iOS).

#Adjusting spell check

Spell check is separate from autocorrect. With autocorrect off and Check Spelling on, the keyboard underlines misspelled words in red but doesn’t change them, so you decide whether to fix each one.

1. In Keyboard settings, find Check Spelling
2. Make sure the toggle is on (green)

We recommend keeping this on for most users. It gives you a visual signal without the silent rewrites that make autocorrect frustrating.

#Tips for better typing without autocorrect

Turning autocorrect off doesn’t mean accepting more typos. Two built-in features pick up the slack.

#Using text replacement

Text Replacement is a keyboard shortcut system. Type a short trigger and iOS expands it into a longer phrase, regardless of whether autocorrect is on. Apple’s Text Replacement documentation confirms that replacements sync across all devices signed into the same iCloud account when Keyboard is enabled under iCloud settings.

1. Go to Settings > General > Keyboard > Text Replacement
2. Tap the plus sign in the top-right corner
3. In the Phrase field, enter the full text you want (for example: “on my way”)
4. In the Shortcut field, enter the trigger (for example: “omw”)
5. Tap Save

Common useful shortcuts: your email address, your home address, frequent canned responses, signature blocks, and any string of characters you find yourself retyping more than twice a week. Each entry takes about ten seconds to add and saves time forever. If you found the standard iPhone keyboard cramped, our guide on how to make the keyboard bigger on iPhone covers landscape mode and accessibility options.

#Third-party keyboard options

If the stock keyboard doesn’t fit your typing style, the App Store has alternatives with smarter prediction and gesture typing. Popular choices:

• SwiftKey: Microsoft’s keyboard with adaptive prediction and gesture typing
• Gboard: Google’s keyboard with built-in search and glide typing
• Grammarly Keyboard: focused on grammar and tone suggestions

Each one ships its own autocorrect engine you can configure independently of the system setting.

For broader iPhone troubleshooting beyond the keyboard, our guides on AirDrop not working and iPhone camera not working cover the next-most-common settings menus people get stuck in.

#Troubleshooting autocorrect issues

If autocorrect still misbehaves after you’ve turned it off, the keyboard dictionary or iOS itself is likely the culprit.

#Resetting the keyboard dictionary

iOS learns words you type often and adds them to a personal dictionary. If learned words got merged with bad corrections, a reset is the cleanest fix.

1. Go to Settings > General > Transfer or Reset iPhone
2. Tap Reset
3. Tap Reset Keyboard Dictionary
4. Enter your passcode and confirm

This erases learned words but doesn’t touch your saved Text Replacements. Apple’s reset documentation states that the dictionary reset is reversible only by re-typing words to rebuild the learning data.

#Updating iOS

Apple announced fixes for several keyboard prediction bugs in the iOS 17.4 release notes, and similar fixes ship with most point releases. If autocorrect feels stuck on a behavior you can’t change, an iOS update is often the cleanest fix.

1. Go to Settings > General > Software Update
2. Tap Update Now if a newer version is available
3. Plug in to power and let the update finish

If your iPhone gets stuck during the update process, our walkthrough on how to fix a frozen iPhone covers force restart sequences that don’t lose data.

#Pros and cons of disabling autocorrect

#Benefits

• More control over your typing, especially with names and technical terms
• No more autocorrect fails in messages or work emails
• Better bilingual typing when you switch languages without switching keyboards
• Clearer signal about your typing accuracy, since you see what you actually typed

#Trade-offs

• You’ll need to proofread more carefully since silent corrections won’t catch typos
• Common transpositions like “teh” stay misspelled until you fix them manually
• Typing speed may dip for a week while your fingers stop relying on auto-fix
• Predictive suggestions still help if you keep Predictive Text on, so don’t disable both unless you want a fully manual keyboard

#Bottom Line

Turn off Auto-Correction in Settings > General > Keyboard and leave Check Spelling on. That’s the setup we use across our test iPhones for technical writing and bilingual messaging, because it gives you the red-underline safety net without silent rewrites. Keep Predictive Text on if you want word suggestions; turn it off only if you want a fully manual typing experience. Re-enable Auto-Correction the same way if you change your mind.

#Frequently Asked Questions