Google Ads Invalid Clicks: What Google Filters and Credits
Some clicks on your ads come from bots, accidents or people with no interest in buying. Google filters most of them before you are billed and credits the rest later. This guide explains what Google counts as invalid, where the filtered clicks and credits show up, why your other tools may disagree, and when it is worth asking Google to investigate.
This guide uses Google Ads Help: About invalid traffic, Invalid clicks: Definition, About the Invalid Activity Credit Report and Prevent invalid leads, plus the other Help pages linked below. Quotes are Google's words; the checklist at the end is our own suggestion.
What Google counts as invalid
Google defines invalid clicks as "clicks on your ads that don't represent a genuine interest in your business." Its broader term, invalid traffic, covers impressions, clicks, interactions and conversions. The examples Google gives:
- Non-human traffic: bots and automated software that mimic how people browse.
- Accidental clicks: for example, ads placed too close to navigation buttons.
- Fraudulent ad placements: "clickjacking", which tricks people into clicking an invisible ad, and "ad stacking", where a publisher layers several ads so only the top one is visible.
- Other invalid user activity: real people clicking without real interest, such as competitors clicking to raise your spend, publishers paying users to click ads, or impressions meant to lower your clickthrough rate.
Google says the list "isn't exhaustive". Its clicks and CTR troubleshooting page adds one billing rule worth knowing: you aren't charged for more than 2 clicks per ad impression.
How filtering and billing work
Google's ad traffic quality team uses automated filters, machine learning and manual reviews, and "often detects this traffic as it happens or shortly after." On the publisher side, Google rejects sites and apps that fail its quality standards and may suspend or remove a publisher with high levels of invalid traffic. Google also says the Media Rating Council accredits its invalid traffic defenses for specific services and metrics, and that an independent third party audits them annually.
What happens to the money depends on when Google catches the traffic:
| Detected | What Google does | Where you see it |
|---|---|---|
| Before the billing cycle ends | Removes it from billing and from campaign metrics. The cost is restored to your campaign budget so it can be spent on valid clicks, within your normal monthly limits. | Invalid clicks and Invalid interactions columns |
| After you were billed | Issues a credit on a later invoice, "where appropriate and possible". | "Invalid activity" adjustments on your bill and the Invalid Activity Credit Report |
So there is normally no refund to ask for. Google's words: invalid traffic detected before the end of the month "is automatically removed from your billing and campaign reports, so no refunds are necessary."
Where to see invalid clicks
The Invalid clicks column. Go to Campaigns in the Campaigns menu, select the Columns icon above the table, search for "Invalid clicks" and select Apply. The column shows clicks Google already filtered; you were not charged for them. Google stresses that a rising number is not bad news in itself: it means more invalid interactions were caught and taken out of your Clicks, Cost and bill.
The Invalid traffic card. On the Overview page, this card shows two figures for the selected dates: Estimated savings (cost saved by automated protections, including proactive manual reviews) and Credited cost (credits for invalid activity found after the billing period ended). "View details" opens daily graphs, a breakdown by campaign and links to the invoices that carried credits. Google notes the card is rolling out gradually, so your account may not have it yet.
One oddity this explains: reports can show more conversions than clicks. If a click led to a conversion and was later judged invalid, Google removes the click from your metrics but "the valid conversion remains." Separately, Google removes some conversions that originate from invalid traffic, or that stay invalid for longer than 13 months, which can show up as a small drop in conversions over time.
Credits and the Invalid Activity Credit Report
To find credits on your bill, go to Billing > Summary and open the "Adjustments" dropdown in the "Month" card; credits are labelled "Invalid activity". Each credit line shows the original month of service and the campaign.
Credits don't change your campaign reports. Google freezes campaign metrics at the end of each month so they match the invoice. To see performance with the credits taken out, use the Invalid Activity Credit Report: Campaigns > Report Editor, then in "Template gallery" select Invalid Activity Credit Report: Search & PMax. As the name says, it covers Search and Performance Max campaigns. Credits there also include clicks later found to be on inventory that violates Google's AdSense Program policies, not only invalid traffic.
| Column | Meaning (Google's definitions, shortened) |
|---|---|
| Credited clicks / interactions | Clicks or interactions credited after the billing period ended. |
| Credited amount | The amount credited back for that activity. |
| Adjusted cost | Invoiced campaign cost minus the credit. |
| Adjusted clicks / interactions | Totals minus the credited ones. |
| Adjusted CTR, Avg. CPC, conv. rate, cost / conv. | The usual ratios recalculated on adjusted figures. Adjusted CTR may be lower and adjusted CPC higher than first reported. |
Don't expect the filtered and credited numbers to line up. Google says they "are not directly related": the Invalid clicks column counts traffic filtered before billing, while credits cover what was found after the cycle closed. A click just before month end can also be credited in the following month, and monthly totals can differ slightly through rounding.
When your numbers look wrong
Most worries about click fraud start with a pattern in another tool. Google's answers to the common ones:
- A sudden spike or a budget spent early. Not proof of invalid traffic. Google lists seasonal demand, news, a competitor pausing its ads, and your own changes to budget, keywords, audiences or locations. Check change history first.
- Clicks from outside your target area. Google estimates location from signals such as IP address and says accuracy isn't guaranteed. Ads can show to people elsewhere who search for your location by name, and country targeting includes searches on that country's Google domain. The fix is the "Presence" option and exclusions in location targeting.
- Zero-second visits. Many analytics tools need a second interaction to record time on site, so a zero-second visit can mean the visitor never left the landing page.
- Many clicks from one IP address. Offices, universities, cafés and mobile carriers put hundreds or thousands of devices behind one public address.
- Analytics shows visits Google Ads doesn't. Google Ads removes filtered clicks from its reports, but your analytics still records the visit. Google's third-party data page also lists repeat clicks, reloads, back-button visits and blocked referrers. With auto-tagging, Google charges "at most once for each unique tag". Our analytics reporting guide covers reading these reports side by side.
- A click-fraud tool reports more. Google can't evaluate third-party reports because it doesn't know their criteria, says such tools often flag traffic it already filtered, and won't do a click-by-click comparison. Its invalid traffic investigations don't validate third-party data either.
Is there a "normal" rate? Google says there is no industry standard, and that it will not reveal which clicks it judged invalid or which sources and placements were involved, so that bad actors can't learn how to get around the filters.
Excluding IP addresses
If you suspect a specific network is clicking, Google's IP exclusion page explains how to block it. Google's own example is excluding your company's office network so staff checking search results don't create unwanted impressions and clicks.
- Account level: Admin > Account settings > IP exclusions. Applies to all campaigns, including Performance Max, Demand Gen, Search, Shopping, Display, Discover and YouTube.
- Campaign level: in the campaign's Settings, under Additional settings. Up to 500 addresses per campaign; an asterisk can replace the last part to block a range. Not available for video, hotel, App, Performance Max or Smart Display campaigns.
- Lists at both levels are merged for a campaign. Add every version of an address you want to block, and use location exclusions instead if the goal is geography.
On the Display Network, accidental clicks usually come from where ads appear. Google points to content suitability settings and placement exclusions to control where ads appear, and our placement exclusions guide covers the details.
Invalid leads are a separate problem
Filtering protects your bill, not your contact form. Google's filters run after an ad has served, so they can't keep a bot off your site, and real people can still type fake details. Google calls lead quality "a shared responsibility" and recommends:
- reCAPTCHA on web forms, and server-side validation that checks email domains and phone formats before a lead reaches your CRM;
- double opt-in, so a lead only counts once someone clicks the link in a confirmation email;
- lead-focused goals such as "qualified lead", "converted lead", "book appointment" or "request quote", measured with the Google tag and enhanced conversions.
Our guides on stopping form spam and Google Ads conversion tracking cover these steps.
Requesting an investigation
If you believe invalid traffic got past the filters, you can ask Google to investigate activity from the last 60 days through the Click Quality Form (you need to sign in to your Google account). Google uses the same form for poor-quality form submissions, clicks outside your target locations and sudden short-term cost increases. Before you submit, Google asks you to gather:
- your 10-digit customer ID and the exact dates;
- the campaigns, ad groups and keywords involved;
- web server logs: the IP addresses with repeated clicks or clicks without conversions, browser and device details, and the GCLIDs (Google click IDs) of the suspicious clicks;
- for lead problems, a spreadsheet with the GCLID of each lead and your assessment of it, for example the outcome of calling them;
- a short explanation of why the traffic looks wrong. Google's examples: a 300% rise in clicks without more conversions, or clicks from outside your targeted locations.
Specialists review the data manually, which "typically takes several business days". You get the findings by email, and Google notifies you of any credit for traffic the filters missed. Google won't confirm whether particular clicks were marked valid or invalid.
A short checklist
Our suggestion for reviewing a suspected click-fraud problem:
- Add the Invalid clicks column and look at the Invalid traffic card, if you have it.
- Check change history, location settings and search terms for an ordinary explanation.
- Look for "Invalid activity" credits on the bill and, for Search and Performance Max, open the Invalid Activity Credit Report.
- Exclude known internal or repeat IP addresses.
- Protect forms and track qualified leads, not just submissions.
- If something still doesn't add up, collect logs and GCLIDs and file the Click Quality Form within 60 days.
Frequently asked questions
Do I pay for invalid clicks in Google Ads?
No. Clicks Google catches before the billing cycle ends are removed from your bill and metrics. Invalid activity found after you were billed is credited on a later invoice, where Google considers it appropriate and possible.
Where do I see invalid clicks?
Add the Invalid clicks column to the Campaigns table. The Invalid traffic card on the Overview page shows estimated savings and credited cost, and credits appear as "Invalid activity" adjustments under Billing > Summary.
Why don't my credits match the Invalid clicks column?
They measure different things. The column counts clicks filtered before billing; credits cover activity found after the billing cycle closed. Google says the two "are not directly related".
How far back can Google investigate invalid clicks?
60 days. Submit the Click Quality Form with your customer ID, dates, campaigns, server logs with IP addresses and GCLIDs, and why the traffic looks suspicious.
Will Google tell me which clicks were invalid?
No. Google keeps its detection methods and click-level decisions confidential so bad actors can't learn to get around them.
Clean tracking makes invalid traffic much easier to spot. See our Google Ads basics guide, our website development service and all our services, or email [email protected].