Keyword match types are the dial that controls how far your Google Ads budget travels. Set them too tight and you miss customers who phrase things differently. Set them too loose and you pay for searches that have nothing to do with your business. Few settings have a bigger effect on wasted spend.
Match types have also changed a lot. Exact match no longer means exact, broad match modifier is gone, and Google's AI Max for Search campaigns now adds a further layer of keyword-free matching on top. Advice written a few years ago can lead you in the wrong direction.
This guide explains how each match type works in 2026, how Google chooses between keywords, how negative keywords behave differently, and a practical framework for choosing the right mix for your account.
Key Takeaways
- Google Ads has three match types: broad, phrase (in quotes) and exact (in square brackets).
- All three can match close variants, including misspellings, plurals and searches with the same meaning.
- Broad match works best with Smart Bidding, which Google describes as critical for broad match.
- When several keywords could match, an exact match keyword identical to the search term takes priority.
- Negative keywords do not match close variants, so you must add variations yourself.
The Three Keyword Match Types
| Match type | Syntax | Google's description | Reach |
|---|---|---|---|
| Broad match | emergency plumber | Ads may show on searches that are related to your keyword | Widest |
| Phrase match | "emergency plumber" | Ads may show on searches that include the meaning of your keyword | Medium |
| Exact match | [emergency plumber] | Ads may show on searches that have the same meaning or same intent as the keyword | Narrowest |
Broad match
Broad match is the default. It can show your ad for searches that do not contain your keyword at all, as long as Google judges them related. Google's own example is a broad match keyword "low carb diet plan" matching searches such as "carb free foods". To decide what is relevant, broad match can use the person's recent search activity, the content of your landing pages and assets, and the other keywords in the same ad group.
Google is unambiguous about how it should be used:
“It's critical to use Smart Bidding with broad match.”
— Google Ads Help, About keyword matching options
Smart Bidding uses conversion data to bid up on searches that convert and down on those that do not. Without it, broad match on manual bids can spend quickly on loosely related traffic. Our guide to Google Ads bidding strategies explains the options.
Phrase match
Phrase match shows ads on searches that include the meaning of your keyword. Word order still matters where it changes meaning: "emergency plumber" could match "24 hour emergency plumber near me" but should not match a query where the words mean something different. Phrase match absorbed the old broad match modifier behaviour; Google says it does not treat phrase match and legacy BMM keywords differently in the auction.
Exact match
Exact match is the tightest option, but it is not literal. It matches searches with the same meaning or intent, which include close variants.
Close Variants Apply to Every Match Type
Google defines close variants as matches to searches that are similar, but not identical, to your keyword. They include:
- Misspellings, singular and plural forms and stemmings
- Abbreviations and accents
- Reordered words with the same meaning, such as [shoes mens] and [mens shoes]
- Synonyms and paraphrases, such as "bathing suits" matching "swimming suits"
This is why the search terms report matters even for exact match campaigns. It is the only way to see what you are really paying for.
How Google Chooses Between Your Keywords
If several of your keywords could match one search, Google applies a priority order. Its documentation states that exact match keywords identical to the search term are prioritized. After that:
- An exact match keyword identical to the search wins first, including over Performance Max.
- Phrase or broad keywords identical to the search, and Performance Max search themes identical to it, share the next level of priority.
- Among the rest, Google considers only the most relevant ad groups.
- If candidates are still tied, the one with the highest Ad Rank is chosen.
Google also notes that broader match types capture all the queries of narrower match types, plus more. So you rarely need the same keyword in all three types.
Negative Keyword Match Types Work Differently
Negative keywords use the same three syntaxes, but with an important difference:
“Negative keywords won’t match to close variants or other expansions.”
— Google Ads Help, About negative keywords
| Negative type | Blocks your ad when the search... | Example negative |
|---|---|---|
| Negative broad | Contains all the negative terms, in any order | free jobs |
| Negative phrase | Contains the exact terms in the same order | "plumber jobs" |
| Negative exact | Is exactly the terms, in order, with no extra words | [plumber salary] |
Add plurals and misspellings yourself. Our guide to negative keywords includes ready-made starter lists.
Where AI Max Fits In
AI Max for Search campaigns is an optional setting on Search campaigns, not a new campaign type. Google describes it as a suite of targeting and creative features with three parts: search term matching, text customisation and final URL expansion. Search term matching lets you expand beyond your keywords using broad match and keywordless technology, and broad match campaign settings have been upgraded into AI Max. Brand inclusions and exclusions give you some control over which brand searches you appear for.
If you turn AI Max on, your keyword list becomes a signal rather than a boundary, so negative keywords, brand controls and close monitoring of search terms become even more important.
How to Choose Match Types: Step by Step
- Check your conversion tracking. Broad match and Smart Bidding depend on accurate conversions. Fix tracking first.
- Start with your proven terms. Put your highest-intent keywords in exact or phrase match. Find them with Google Keyword Planner and your own sales data.
- Build negatives before launch. Add obvious irrelevant terms such as jobs, free, DIY or competitor names you do not want.
- Test broad match in a controlled way. Once a campaign has steady conversions, try broad match with Smart Bidding, ideally as a campaign experiment.
- Review search terms weekly at first. Add new negatives and promote converting searches to their own keywords.
- Judge on cost per conversion, not clicks. Broad match often increases volume; what matters is whether cost per acquisition stays within target.
Which Match Type for Which Situation?
| Situation | Suggested approach |
|---|---|
| New account, little conversion data | Phrase and exact match, manual or Maximise Clicks with caps, strong negatives |
| Established account with steady conversions | Test broad match with Smart Bidding alongside existing keywords |
| Very small budget | Exact and phrase on high-intent terms only; see our PPC budget guide |
| Brand campaign | Exact and phrase brand terms, with brand controls if using AI Max |
| Discovering new keyword ideas | Broad match or AI Max with close search term review |
Common Mistakes
- Broad match with manual bidding and no negatives. A fast way to buy irrelevant clicks.
- Assuming exact match is literal. Close variants mean you still need to check search terms.
- Duplicating every keyword in three match types. It splits data and adds work without much benefit.
- Forgetting negatives do not match variants. "plumber job" will not block "plumbing jobs".
- Judging broad match on CTR alone. Look at conversions and cost per conversion.
For more pitfalls, see our list of Google Ads mistakes.
Related Guides
- Search Terms Report: Find Wasted Spend
- Google Ads Audiences: Targeting Options Explained
- Demand Gen Campaigns in Google Ads: A Practical Guide
Frequently Asked Questions
What are the three keyword match types in Google Ads?
Broad match (no symbol), phrase match (keyword in quotation marks) and exact match (keyword in square brackets). Broad reaches the widest set of related searches; exact is the most restrictive.
Does broad match modifier still exist?
No. Its behaviour was folded into phrase match, and existing broad match modifier keywords are treated as legacy keywords. Google says it does not treat phrase match and legacy BMM keywords differently in the auction.
Which match type should a small budget use?
Many small accounts start with phrase and exact match for control, then test broad match once conversion tracking is reliable and Smart Bidding has enough data. Always review the search terms report.
Do I need the same keyword in all three match types?
Usually not. Google notes that broader match types capture the queries of narrower match types, plus more. Duplicating keywords across match types mainly adds complexity.
How does AI Max relate to broad match?
AI Max for Search campaigns is an optional layer on Search campaigns. Its search term matching expands beyond your keywords using broad match and keywordless technology, and campaign broad match settings have been upgraded into AI Max.
Conclusion
Match types are no longer about precise word-for-word control. They are about how much freedom you give Google's systems and how well you guide them with conversion data, negatives and regular search term reviews. Start tight, prove what converts, then expand deliberately.
If you want an expert review of your match type strategy, our PPC management team can audit your account, or you can request a free quote. Our PPC audit checklist is a good place to start on your own.
References
- About keyword matching options – Google Ads Help
- About close variants – Google Ads Help
- About negative keywords – Google Ads Help
- Optimize Google Ads with AI Max for Search campaigns – Google Ads Help
- About phrase match and broad match modifier changes – Google Ads Help
- What Are Keyword Match Types? Examples + Best Practices – Semrush Blog
