Google Ads Audit: The 37-Point Checklist We Use

A Google Ads audit is the fastest way to find the money your account is quietly losing. Industry studies consistently put wasted spend at 25 to 40% of the average account, spread across the wrong queries, broken tracking, and settings nobody has looked at in months. According to WordStream's 2025 benchmarks, the average cost per click is now $5.26 and the average cost per lead is $70.11, so every dollar you burn costs more than it did last year.

Most audits fail for one reason: they check the fun stuff (ad copy, shiny keywords) and skip the boring foundation (conversion tracking, account structure) where the real leaks live. This checklist is what I run on every account, in the order I run it, whether it spends $2,000 or $200,000 a month. It works for a founder auditing their own account and for a marketer inheriting someone else's mess.

  Key Takeaways

• What it covers: A Google Ads audit reviews tracking, account structure, keywords, ads, bidding, and automation, then fixes what it finds in priority order.
• Where the money hides: Most accounts waste 25 to 40% of budget, and conversion tracking plus negative keywords are usually the biggest, fastest savings.
• Fix tracking first: If conversion tracking is wrong, Smart Bidding optimizes toward the wrong signals and every report lies to you.
• Quality Score is a cost lever: Google charges less per click as Quality Score rises, so any core keyword scoring below 6 is worth fixing before you add budget.
• Cadence scales with spend: Audit quarterly under $5K a month, monthly at $5K to $50K, and run weekly spot-checks above $50K.

What Does a Google Ads Audit Actually Check?

A Google Ads audit is a structured review of everything between your budget and your revenue: measurement, account structure, campaigns, search queries, ads, landing pages, bidding, and the automation layer that now runs quietly in the background. The goal is not a 100-page report. The goal is a short list of what is wasting money and what to fix first.

Why it matters: a paid search audit is the only reliable way to separate what is actually working from what merely looks busy. It is also the moment to sanity-check where paid search fits next to SEO, because the cheapest conversion is often one channel over.

Industry studies consistently put wasted spend at 25 to 40% of the average Google Ads account. That is not an edge case, it is the baseline. An audit is how you find your share of it.

The 37-Point Google Ads Audit Checklist

Run these in order. Each block builds on the one before it, so resist the urge to jump straight to keywords. If your measurement is broken, everything downstream is guesswork.

Conversion tracking and measurement (1 to 7)

1. Confirm every conversion action has recorded data in the last 30 days.
2. Separate primary conversions from secondary ones, so only real business outcomes count toward bidding.
3. Check for double counting: a thank-you page firing twice, or GA4 and Google Ads both importing the same action.
4. Verify Enhanced Conversions is on and receiving matched data.
5. Confirm the conversion window matches your real sales cycle, not the default.
6. Check GA4 is linked and its key events line up with your Google Ads conversions.
7. Validate offline conversion import if you close on calls or long cycles.

Account structure (8 to 13)

1. Map each campaign to a single clear objective, with no mixed brand and non-brand.
2. Split brand from non-brand so you can see true incremental spend.
3. Tighten ad groups: each should map to one intent theme, not twenty stray keywords.
4. Confirm geo and language targeting match where you actually sell.
5. Turn off Search Partners and Display expansion unless the data proves they pay.
6. Find campaign overlap where two campaigns bid on the same queries.

Keywords and search terms (14 to 21)

1. Pull the search terms report for the last 90 days and sort by cost.
2. Flag high-spend, zero-conversion queries as negative keyword candidates.
3. Review match types: use broad match only with strong signals and Smart Bidding.
4. Confirm a negative keyword list exists at both account and campaign level.
5. Check for cannibalization, where one term triggers several ad groups.
6. Pull Quality Score and isolate core keywords scoring below 6.
7. Read the three Quality Score components: expected CTR, ad relevance, and landing page experience.
8. Compare impression share lost to rank versus lost to budget, so you know which lever to pull.

Ads and creative assets (22 to 27)

1. Confirm each ad group has at least two responsive search ads.
2. Check asset strength ratings and replace anything rated Poor.
3. Verify sitelinks, callouts, and structured snippets are present and current.
4. Review landing page relevance and load speed for your top-spend ads.
5. Confirm the ad copy matches the landing page promise (message match).
6. Study competitor angles; the Meta Ads Library is a fast, free way to see live creative.

Bidding and budget (28 to 32)

1. Confirm the bid strategy fits the campaign goal and its data volume, the core call in manual and smart bidding.
2. Check target CPA or ROAS goals are realistic against historical numbers.
3. Find budget-limited campaigns with strong ROAS that deserve more.
4. Find budget-draining campaigns with weak returns that deserve less.
5. Sanity-check spend against your budget by growth stage and cost-per-lead math.

Automation, Performance Max, and settings (33 to 37)

1. Audit auto-applied recommendations and switch off the ones that change strategy silently.
2. Review Performance Max goals for value alignment, not just conversion count.
3. Check PMax asset groups and audience signals for relevance.
4. Add brand exclusions to PMax if you run separate brand search.
5. Read the change history for unexplained edits by Google or your team.

How to Prioritize What the Audit Finds

Fix the expensive, low-effort problems first. A checklist that surfaces 30 issues is useless if you treat them all as equal. Rank each finding by impact and effort, then work top to bottom.

Issue found	Typical impact	Effort to fix	Fix order
Broken or double-counted conversions	Bidding optimizes on bad data	Low to medium	1
High-spend, zero-conversion search terms	Direct wasted spend	Low	2
Missing or thin negative keywords	15 to 30% of spend on junk traffic	Low	3
Wrong bid strategy for data volume	Unstable CPA and ROAS	Medium	4
Budget-limited winners	Capped revenue	Low	5
Weak ads or Poor assets	Lower CTR and Quality Score	Medium	6
Unreviewed auto-applied changes	Silent strategy drift	Low	7

The pattern almost never changes: the cheapest fixes (tracking, negatives, budget reallocation) return the most money the fastest. Save the slower creative and landing page work for after the leaks are plugged.

Should You Audit Google Ads Yourself or Hire Help?

You can run a serious account review on your own if you have the time and a clear head about your numbers. Here is the honest split.

What you can do yourself for free:

• Pull the search terms report and add obvious negatives.
• Check conversion actions for recent data and duplicates.
• Spot budget-limited campaigns and reallocate.
• Turn off Search Partners and risky auto-applied recommendations.

When it is worth bringing in help:

• Conversion tracking is broken and you are not sure what is firing.
• Performance dropped and you cannot find the cause in the change history.
• You are scaling budget and want a second opinion before you commit.
• Performance Max is spending and you have no visibility into where.

If you would rather not run all 37 checks yourself, our free SEA analysis covers them and lands in your inbox within 24 hours, no strings attached.

How Often Should You Run a Google Ads Audit?

Cadence should track spend, not the calendar. Under $5,000 a month, a quarterly review is enough. Between $5,000 and $50,000, audit monthly. Above $50,000, run weekly spot-checks on search terms and budget pacing, with a full review once a month.

What should trigger an audit outside that rhythm: a performance drop of 20% or more week over week, any change to your tracking, a new Performance Max launch, a big seasonal shift, or an account handover.

The bottom line: the best time to audit is before you scale budget. Pouring spend into an account with broken tracking just buys more bad data, faster.

If you want a second set of eyes on the account before you touch anything, book a call and we will walk the checklist together.

Frequently Asked Questions

How much does a Google Ads audit cost?

It ranges from free to several thousand dollars. A self-run audit costs only your time, and many agencies offer a free first-pass review to win your business. Deep, hands-on audits with implementation typically start in the low thousands, scaled to account size and spend.

How long does a Google Ads audit take?

A focused review of a small account takes 2 to 4 hours. Mid-sized accounts run 4 to 8 hours, and enterprise accounts with Performance Max and multiple markets can take 8 to 16 hours. The tracking and search terms checks are where most of the time goes.

What tools do I need to audit a Google Ads account?

For most accounts, the Google Ads interface and a linked GA4 property are enough: the search terms report, the change history, the recommendations tab, and Quality Score columns. Third-party scripts and audit tools speed things up, but nothing in this checklist requires paid software.

What is the difference between an audit and ongoing optimization?

An audit is a point-in-time diagnosis: it tells you what is wrong and what to fix first. Optimization is the recurring work of acting on those findings and improving performance week over week. You audit to set direction, then optimize to compound it.

Will running an audit interfere with my live campaigns?

The review itself changes nothing; it is read-only until you decide to act. When you do apply fixes, change one variable at a time and note it in the change history, so you can measure the effect and roll back if a change backfires.