Broad vs Phrase vs Exact match in Google Ads: 2026 guide

Google Ads has three keyword match types: broad match, phrase match, and exact match. Choosing between them controls who sees your ads. This guide explains what each one actually does in 2026, when to use it, and how AI Max for Search (out of beta since April 2026) fits into the picture.

Note for anyone maintaining an older account: modified broad match (BMM), the +keyword syntax, was absorbed into phrase match in 2021. It no longer exists as a separate match type. Existing BMM keywords are now served as phrase match, and you cannot create new ones.

Broad match

Broad match is the default. A broad match keyword triggers ads for searches related to your keyword, including synonyms and related concepts. It can even match searches that don't contain the actual words in your keyword.

Example: a broad match keyword running shoes could trigger ads for "sneakers for jogging", "best shoes for runners", or "athletic footwear".

Reach: highest of the three. Control: lowest.

Broad match only works well when paired with Smart Bidding and a stable conversion-tracking setup. Without enough conversion data, broad match will burn budget on irrelevant queries. The usual rule of thumb is at least 30 conversions per month per campaign.

Phrase match

Phrase match triggers ads for searches that include the meaning of your keyword. Word order is respected when it's important to the meaning. Additional words can appear before or after your keyword.

Example: a phrase match keyword "running shoes" could trigger ads for "best running shoes for women" or "affordable running shoes", but not "jogging sneakers".

Phrase match absorbed modified broad match (BMM) behavior in 2021. If you have old +running +shoes keywords, Google now serves them as phrase match under the hood.

Reach: middle. Control: middle.

Exact match

Exact match triggers ads for searches with the same meaning or same intent as your keyword. It allows close variants such as singular/plural forms, function words (like in, to, for), misspellings, and reordered words with the same meaning, but not unrelated queries.

Example: an exact match keyword [running shoes] could trigger ads for "running shoes" or "buy running shoe" (singular), but not "jogging shoes".

Since 2024, identical-query priority extends to phrase and broad keywords too. If a phrase or broad keyword exactly matches the user's search, it wins the auction over a less-specific broad match.

Reach: lowest. Control: highest.

Comparison table

Match type	Syntax	Triggers ads for	Best for	Risk
Broad	`running shoes`	Related searches, synonyms, concepts	Discovery with Smart Bidding	Irrelevant spend without data
Phrase	`"running shoes"`	Same meaning. Extra words allowed	Mid-funnel reach with control	Looser than many expect
Exact	`[running shoes]`	Same meaning or intent + close variants	High-intent proven terms	Misses long-tail variation

When to use which match type

It depends on where the keyword sits in your funnel, and how much conversion data you have.

Discovery (new ad group, no conversion data). Start with phrase match. It catches related searches without the wide spray of broad. Once you're consistently generating 30+ conversions per month, add a broad match layer with Smart Bidding.
Scaling (proven ad group with conversion data). Layer broad match + AI Max on top of your existing phrase and exact keywords. AI Max uses broad match + asset signals internally to find untapped queries while your precision layer stays in place.
High-intent proven terms. Exact match. Your highest-converting queries deserve the tightest targeting. Exact match also gives you the cleanest conversion data for Smart Bidding to learn from.
Brand defense. Stack exact (brand) + phrase (brand + product) + broad negatives for non-brand queries. The standard brand-stack pattern.

AI Max and the modern match-type reality

AI Max for Search campaigns launched in beta in May 2025. By April 2026 it had moved out of beta. It's not a new campaign type, just an optimization layer on top of your existing Search campaigns. Internally, AI Max uses broad match + asset-based targeting + landing-page-based targeting to expand reach.

Google reports that advertisers activating AI Max see on average 14% more conversions or conversion value at similar CPA/ROAS. Use the full feature suite (search term matching + text customization + final URL expansion) and you get about 7% more conversions than search term matching alone.

Three changes worth flagging for your account:

September 2026: campaigns using automatically created assets (ACA) or campaign-level broad match setting auto-upgrade to AI Max.
February 2027: campaigns using Dynamic Search Ads (DSA) auto-upgrade to AI Max, extended from the original September 2026 date per Google's June 11, 2026 update. New DSA campaigns can no longer be created after September 2026.
Match-type priority in AI Max: phrase and broad match keywords in AI Max ad groups share the same priority as phrase and broad keywords in standard Search campaigns. Exact match still wins when identical to the query.
Reporting: AI Max adds new search-term insights to show when broad match expansion vs. asset-based targeting drove each conversion.

So what does this mean in practice? You still need an exact match layer for control. Phrase match remains the safest mid-funnel option. And broad match + AI Max + Smart Bidding is the modern discovery stack.

Common mistakes (2026 edition)

Skipping exact match for proven terms. Broad match with Smart Bidding is now legitimate, but you still need an exact layer for your highest-intent queries. Without it, you'll overpay for clicks you could have matched precisely.
Running broad match without Smart Bidding and 30+ conversions/month. Broad without signals wastes spend on irrelevant queries. If you're not ready for Smart Bidding, stay on phrase match.
Ignoring AI Max entirely. If your account uses ACA or campaign-level broad match setting, you auto-upgrade in September 2026. If you use DSA, you auto-upgrade in February 2027. Check your campaign settings now so the migration doesn't surprise you.
Duplicating keywords across all three match types. Google explicitly says there's no benefit to using the same keyword in multiple match types when broad + Smart Bidding is on. Pick one match type per keyword.
Not adding negatives to broad, phrase, or AI Max ad groups. Wastes spend on irrelevant queries. The single highest-leverage hygiene task in any Search account.
Migrating legacy BMM keywords manually. Old +keyword keywords now serve as phrase match. Google recommends leaving them alone, since manual migration loses performance history.
Match type doesn't set your CPC, although many think it does. Google's systems don't treat exact match as inherently more or less expensive than broad match. Cost per click is determined by the query, Quality Score, and Ad Rank at auction, not by which match type captured the click.

Ready to apply this to a real list?

Keyword Wrapper. Wrap any list with [exact] / "phrase" / broad brackets in one click. The fastest way to format a list once you've decided on match types.
Negative Keyword Wrapper. Prefix lists with - for exact / phrase / broad negatives. Essential for the fifth common mistake above.