The average Google Ads account wastes 26% of its budget on traffic that was never going to convert. That’s not a rounding error — on a $20,000/month account, that’s $5,200 disappearing every single month into irrelevant searches, broken tracking, misconfigured bids, and campaign structures that made sense two years ago but are quietly cannibalizing each other today.
A real Google Ads account audit doesn’t start with pretty charts in a deck. It starts with knowing exactly what to look for — and having the experience to recognize when something that looks fine is actually the problem. This checklist is what we use internally before touching a single campaign setting. It covers every major lever: account structure, bidding strategy, conversion tracking, search term coverage, Performance Max, Demand Gen, and the specific places where budget goes to die.
Work through it in order. Each section builds on the last.
- The five areas where Google Ads accounts lose the most money — and the exact signals to look for in each one
- How to evaluate your campaign structure, including PMax and Demand Gen, using 2026 best practices
- The conversion tracking checks that reveal whether your Smart Bidding is being fed real data or garbage
- A search terms and negative keyword audit process that routinely finds $1,000–$10,000/month in recoverable wasted spend
- Bidding and budget red flags that most account owners never notice until CPLs have already spiked
Section 1: Account Structure — Is the Foundation Working Against You?
Structural problems are insidious because they don’t throw errors. Everything runs. It just runs badly, and you never quite know why.
The first thing to check is campaign segmentation logic. Campaigns should be split in a way that gives your bidding strategy clean, homogeneous data — not lumped together because it was faster to set up. Brand vs. non-brand is the most important split. If you’re running branded keywords in the same campaign as non-brand, your Smart Bidding algorithm is blending two completely different intent signals and optimizing toward an average that serves neither.
Next, look at ad group tightness. Each ad group should contain keywords with near-identical intent so your ad copy can speak directly to that specific search. Ad groups with 30+ loosely related keywords are a relic of 2018 account management — in 2026, they’re actively hurting your Quality Scores and relevance.
Campaign structure audit checklist:
- ☐ Brand campaigns are isolated from non-brand campaigns
- ☐ Competitor campaigns are isolated from your core keyword campaigns
- ☐ Each campaign has a single, clear objective (leads, purchases, calls — not all three)
- ☐ Ad groups contain tightly themed keyword clusters (aim for 5–15 keywords per ad group maximum)
- ☐ You have at least 2–3 enabled Responsive Search Ads per ad group
- ☐ No single campaign is trying to serve radically different geographic markets without location-level segmentation
- ☐ Shopping/PMax campaigns are not cannibalizing your branded search campaigns (check the search terms overlap)
For a deeper look at how account architecture drives long-term performance, our breakdown of Google Ads account structure best practices covers the exact framework we use at every budget level.
Section 2: Conversion Tracking — Are You Feeding Smart Bidding Real Data?
This is the section that exposes more catastrophic problems than any other. We’ve audited accounts spending $50k/month that were optimizing toward a conversion action that fired on page load — not on form submission. The algorithm thought it was winning. The client had no idea why leads weren’t coming in.
Broken or misconfigured conversion tracking isn’t just an analytics problem. It’s a bidding problem. Every Smart Bidding strategy in Google Ads — Target CPA, Target ROAS, Maximize Conversions — is only as good as the conversion signal you feed it. Garbage in, garbage out. Expensive garbage out.
Conversion tracking audit checklist:
- ☐ Verify every active conversion action is firing correctly using Google Tag Assistant or a test conversion
- ☐ Check for duplicate conversion actions (e.g., both a GA4 import and a Google tag firing for the same form — this inflates conversion counts and distorts bidding)
- ☐ Confirm your primary conversion action is set to “Primary” and secondary actions (page views, time on site) are set to “Secondary” — Smart Bidding should only optimize toward meaningful actions
- ☐ Verify attribution model: Data-Driven Attribution is the right default for most accounts in 2026, but confirm it makes sense for your conversion volume (you need ~300+ conversions/month per action for it to be statistically meaningful)
- ☐ Check conversion window settings — a 30-day window is appropriate for most B2B leads; 90 days for high-consideration purchases
- ☐ Confirm call conversions are tracking calls from ads AND calls from the website separately
- ☐ If running ecommerce, verify that conversion value is being passed dynamically with every transaction — not a fixed average order value
- ☐ Check that auto-tagging is enabled and GCLID parameters are being captured in your CRM
If you’re not sure whether your tracking setup is airtight, our guide to setting up Google Ads conversion tracking correctly walks through every step, including the CRM handoff that most setups get wrong.
Section 3: Bidding Strategy — Is Your Account Ready for the Strategy It’s Running?
Smart Bidding isn’t a “set it and let Google handle it” play. It’s a powerful tool that will accelerate you in the right direction — and accelerate you in the wrong direction just as fast if the inputs are bad.
The most common bidding mistake we see in 2026 isn’t using the wrong strategy. It’s using the right strategy on a campaign that doesn’t have enough conversion data to run it effectively. Google needs a minimum of 30–50 conversions per month per campaign to exit the learning phase and make Smart Bidding reliable. Below that threshold, you’re either in perpetual learning mode or the algorithm is making confident decisions based on a sample size that would embarrass a first-year statistics student.
Bidding strategy audit checklist:
- ☐ Confirm each campaign has the right bidding strategy for its conversion volume and maturity level
- ☐ Check for campaigns stuck in “Learning” status — identify the cause (recent major changes, too few conversions, budget constraints)
- ☐ Review tCPA and tROAS targets: are they based on actual historical performance, or were they set arbitrarily at launch and never updated?
- ☐ Check for budget-constrained campaigns running Target CPA — if the budget is capping delivery below 10–15 conversions/week, the algorithm can’t optimize effectively
- ☐ Look for shared budgets that are creating artificial competition between campaigns that should have independent budgets
- ☐ Review bid adjustments for device, location, and audience — are manual adjustments layered on top of a Smart Bidding strategy? (In most cases, they’re redundant and should be removed)
- ☐ Check impression share data: branded campaigns should be at 90%+ impression share; if yours are below 80%, your brand budget is almost certainly too low
For the full decision logic on when to use tCPA vs. tROAS and when to stay on a manual or Maximize strategy, see our Google Ads Smart Bidding strategies explainer — it’s the framework we walk every new client through during onboarding.
Section 4: Search Terms and Negative Keywords — This Is Where the Money Is Leaking
Run your search terms report. Filter for the last 90 days. Sort by spend, descending.
If you’re not doing this at least every two weeks, you are donating money to Google. No exaggeration.
In 2026, with broad match being pushed harder than ever by Google’s reps and automated recommendations, the search terms report is more important — not less. Broad match keywords will match against searches that are conceptually adjacent to your target at best and completely irrelevant at worst. The only thing standing between you and wasted spend is an actively maintained negative keyword list.
Search terms and negative keyword audit checklist:
- ☐ Pull the 90-day search terms report. Flag any term with $50+ in spend and zero conversions
- ☐ Identify and add irrelevant search terms as negatives — not just exact match negatives, but phrase and broad match negatives for patterns (e.g., if “free,” “DIY,” “template,” or “jobs” keep appearing, they should be negative keywords, not just individual term exclusions)
- ☐ Check for brand terms appearing in non-brand campaigns — these inflate conversion rates for non-brand campaigns and give you a false read on performance
- ☐ Review campaign-level vs. account-level negative keyword lists — most accounts should have an account-level shared negative list for universal exclusions
- ☐ Check for cannibalizing keyword overlap between campaigns — two campaigns bidding on the same or similar keywords are competing against each other in auction
- ☐ If running broad match, confirm you have a minimum of 50–100 relevant negative keywords in place before broadening further
- ☐ Look for irrelevant geographic search terms (people searching “near [wrong city]” or searches from locations outside your service area)
A strong negative keyword strategy is one of the highest-ROI activities in all of paid search. Our full breakdown of Google Ads negative keyword strategy covers the tiered approach we use to protect accounts at every match type level.
Section 5: Performance Max and Demand Gen — Audit These Differently Than Search
Performance Max and Demand Gen operate on fundamentally different logic than traditional Search campaigns, and most account audits treat them like Search campaigns with extra steps. That’s a mistake.
PMax gives Google the keys to all inventory — Search, Shopping, Display, YouTube, Gmail, Maps — based on your asset groups and audience signals. The audit question isn’t “are the keywords right?” It’s “are the asset groups tightly themed, are the audience signals relevant, and are you actually seeing search term data that confirms the campaign is hunting in the right territory?”
Demand Gen is a different animal — it’s designed for upper-funnel visual inventory (YouTube, Discover, Gmail) to generate demand rather than capture it. Mixing these objectives with a PMax campaign that’s also trying to drive direct conversions creates attribution chaos and bidding confusion.
PMax and Demand Gen audit checklist:
- ☐ Review PMax asset groups — each should represent a distinct product/service category or audience, not a catch-all dump of every asset you have
- ☐ Check audience signals: are they built from your actual customer data (CRM lists, website visitors) or generic in-market audiences that give the algorithm almost nothing to work with?
- ☐ Pull the PMax search terms insight report — if you’re seeing a high volume of branded searches, add your brand terms to the campaign-level brand exclusion list
- ☐ Verify that PMax campaigns are not cannibalizing high-intent Search campaigns by reviewing auction overlap
- ☐ Check asset performance ratings — “Low” performing assets should be replaced; having too many low-rated assets actively degrades campaign performance
- ☐ For Demand Gen campaigns: confirm the objective is genuinely awareness or consideration, not direct conversion — if you’re forcing a conversion objective on Demand Gen with a small budget, you’re wasting money on impressions that were never going to convert at that stage
- ☐ Review Demand Gen audience targeting: are you excluding existing customers and current leads to avoid paying for audiences you’ve already reached?
If you’re still unclear on when PMax makes sense vs. when it’s handing Google too much control, our complete 2026 PMax guide covers the full decision framework, including when to restrict it and when to let it run. And if Demand Gen is still a question mark for you, the Demand Gen campaign guide breaks down exactly when it outperforms PMax and when it doesn’t.
Section 6: Wasted Spend — The Final Sweep That Pays for the Audit
Every audit should end with a wasted spend tally. Not a vague “there are opportunities here” — an actual dollar figure of spend that went to traffic with no conversion path, no relevance, or no chance of generating business value.
These are the specific places we check last because they require context from the previous five sections to interpret correctly.
Wasted spend audit checklist:
- ☐ Display URL and landing page issues: Pull the URLs that received the most clicks. Check each one. Is the page live? Is the message aligned with the ad? Does the page have a conversion element? A broken or mismatched landing page is one of the most expensive quiet killers in any account
- ☐ Ad scheduling gaps: Are ads running 24/7 on a B2B offer where virtually no one converts at 2am? Check conversion rate by hour of day and day of week — then apply ad scheduling adjustments accordingly
- ☐ Device performance imbalance: Pull conversion rate and cost-per-conversion by device. In most B2B accounts, desktop converts at 2–3x the rate of mobile. If you’re not adjusting bids by device, you’re paying mobile CPCs that aren’t justified by mobile conversion rates
- ☐ Geographic waste: Are you spending in locations that have zero conversion history? Pull performance by location, filter for $200+ spend and zero conversions, and either exclude those locations or reduce bids aggressively
- ☐ Audience exclusion gaps: Are you showing ads to existing customers who are already converted? Are you paying to re-reach people who bounced in under 10 seconds? Audience exclusions — particularly CRM lists and “already converted” segments — are routinely missing from accounts we audit
- ☐ Low-quality placements in Display/PMax: Pull the placement report for any Display or PMax campaigns. Filter for mobile apps, game apps, and parked domain sites — these almost never convert and routinely account for 15–30% of Display spend in unmanaged accounts
- ☐ Budget pacing problems: Is your daily budget hitting the cap before the end of the day? Or barely spending? Both are problems. Overpacing means you’re losing afternoon traffic when purchase intent often peaks. Underpacing suggests a bid or Quality Score problem that’s limiting your ability to enter auctions competitively
How to Score Your Audit (And What to Do With the Results)
When you’ve worked through all six sections, you’ll have a list of issues sorted by severity. Here’s how to prioritize them:
Fix first (this week): Any broken conversion tracking, duplicate conversion actions, or misconfigured primary conversion goals. These directly corrupt your bidding data and every day you leave them in place makes the problem worse.
Fix second (this month): Structural issues — brand/non-brand separation, keyword cannibalization, PMax asset group cleanup, audience exclusions. These take more time to implement but have compounding returns once fixed.
Optimize ongoing: Search term reviews, bid strategy refinements, landing page alignment, ad scheduling adjustments. These are never “done” — they’re the recurring work that separates accounts that plateau from accounts that compound.
One honest note: some of what this audit uncovers is fixable in an afternoon. Some of it requires rebuilding campaigns from scratch — particularly if the account has years of structural debt layered on top of each other. Don’t let the scope paralyze you. Start with the highest-dollar leaks and work down.
FAQ: Google Ads Account Audit
How often should I run a Google Ads audit?
A full structural audit — like the one above — should happen at minimum once per quarter. A lighter version covering search terms, wasted spend, and conversion tracking should be a monthly recurring task. If you’re spending $10k+/month, we’d argue the light version should be biweekly. Accounts drift fast, especially with automated recommendations and broad match expanding reach constantly.
How long does a Google Ads audit take?
A thorough audit of a mid-sized account (5–20 campaigns, $5k–$50k/month spend) takes 3–6 hours if you’re working through it methodically. The temptation is to rush to the “interesting” findings — resist that. The conversion tracking section alone has caused enough audit surprises that we always do it first, no matter how boring it seems.
What does a PPC account audit cost if I hire an agency?
A real audit from a serious agency runs $500–$2,000 for most accounts. Anything “free” is almost always a prospecting exercise — the findings will conveniently require their services to fix. That’s not inherently wrong, but know what you’re getting. If an agency is offering a genuinely detailed audit, it’s either a loss-leader for a relationship they want to build or a paid engagement. Both are legitimate.
What’s the most common problem found in Google Ads audits?
Duplicate or misconfigured conversion tracking, by a wide margin. It shows up in roughly 60–70% of accounts we audit. The second most common is no separation between brand and non-brand campaigns, which distorts performance reporting and makes it impossible to know which traffic is actually generating new business.
Can I do a Google Ads audit myself, or do I need an agency?
You can absolutely run a meaningful self-audit using this checklist — especially for the structural and search term sections. Where agency audits add real value is in benchmarking your performance against comparable accounts and identifying patterns that aren’t obvious without seeing hundreds of other accounts. If your account is spending $5k+/month and you haven’t had an external set of eyes on it in over a year, it’s worth at least getting a second opinion.
Should my audit look at new channels like ChatGPT Ads too?
If you’re running or considering running ChatGPT Ads alongside Google Ads in 2026, yes — your audit scope should include channel attribution. With ChatGPT Ads now live as a self-serve platform, the risk of double-counting conversions across platforms or misattributing assisted conversions from AI-native search is real. Make sure your UTM structure and CRM attribution model can distinguish traffic sources clearly. For context on how the two platforms compare, our honest ChatGPT Ads vs. Google Ads comparison is a good starting point.
How do I know if my current agency is actually doing ongoing audits?
Ask them to show you their last search terms review — specifically which terms they added as negatives and when. Ask to see the conversion tracking audit log. If they can’t produce those, the ongoing account management is probably reactive (responding to problems) rather than proactive (preventing them). Our piece on signs your Google Ads agency isn’t performing covers the specific questions to ask and what the answers should look like.
Get a Second Opinion on Your Account
If you’ve worked through this checklist and found problems — or if you’d rather have someone else find them first — we offer a no-pitch audit where we actually show you what we found, not a slide deck designed to make you sign a contract.
A good audit should feel like a conversation with someone who’s seen your exact situation before. Not a sales call dressed up as expertise.
Before you engage any agency, including us, run them through the Google Ads agency evaluation checklist — it covers the 12 questions that filter out the pretenders from the accounts that will actually move your numbers.
