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Google Ads15 min read27 March 2025

15 Google Ads Mistakes That Are Burning Your Budget (And How to Fix Them)

Wasting money on Google Ads? These 15 common mistakes drain budgets without results. Learn how to fix each one with actionable tips from an agency that manages ₹2Cr+ in ad spend.

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Your Google Ads Account Is Probably Leaking Money Right Now

Here's a number that should make you uncomfortable: the average Google Ads account wastes 76% of its budget on clicks that never convert. That's not a typo. Three-quarters of every rupee you spend on Google Ads goes straight down the drain — not because Google Ads doesn't work, but because most accounts are set up wrong.

We audit Google Ads accounts every week at our agency. Accounts spending ₹50,000/month, ₹5,00,000/month, even ₹20,00,000/month. And the same mistakes show up again and again. Some of these are basic. Some are subtle. All of them are costing you real money.

Here are the 15 biggest budget-killers we find — and exactly how to fix each one.


Mistake #1: Using Broad Match Keywords by Default

This is the single biggest budget drain in Google Ads. Broad match lets Google show your ad for any search it considers "related" to your keyword — which is often hilariously unrelated.

If you bid on "digital marketing agency" with broad match, Google might show your ad for "what is digital marketing" (students researching), "digital marketing course" (people who want to learn, not hire), or "marketing jobs near me" (job seekers). None of these people will ever become your client.

The Fix

  • Switch your most important keywords to exact match [like this] or phrase match "like this"
  • Only use broad match with Smart Bidding and enough conversion data (50+ conversions/month)
  • Check your Search Terms Report weekly to see what queries actually triggered your ads

Mistake #2: No Negative Keywords (or Not Enough)

If broad match is the hole in your bucket, negative keywords are the plug. Negative keywords tell Google which searches should NOT trigger your ads. Without them, you're paying for clicks from people who will never buy.

Every account should have at minimum 50-100 negative keywords on day one. After a month of data, you should have 200-500.

Common Negatives Every Business Needs

  • "free," "cheap," "salary," "jobs," "careers," "internship," "course," "tutorial," "what is," "how to become"
  • Competitor names (unless you're running competitor campaigns intentionally)
  • Irrelevant locations, industries, or product types

Mistake #3: Ignoring Quality Score

Quality Score is Google's 1-10 rating of your ad's relevance. A Quality Score of 7+ means you pay less per click. A score of 3-4 means you pay double or triple. Most advertisers never even check it.

How Quality Score affects your actual cost per click
Quality ScoreCPC AdjustmentExample (if base CPC is ₹50)
10-50%₹25
7No adjustment₹50
5+25%₹62
3+67%₹84
1+400%₹250

The Fix

  • Ensure your ad copy includes the target keyword naturally
  • Make sure your landing page directly addresses the search query
  • Improve landing page speed (under 3 seconds load time)
  • Increase your expected CTR with compelling ad copy and extensions

Mistake #4: Not Using Ad Extensions

Ad extensions (now called "assets") are free additions to your ads — sitelinks, callouts, structured snippets, call buttons, location information. They make your ad bigger, more informative, and more clickable. Ads with extensions get 10-15% higher click-through rates.

Yet we audit accounts every week where zero extensions are set up. That's free real estate on the search results page that you're leaving empty.

Must-Have Extensions

  • Sitelinks: Links to specific pages (Services, Pricing, Portfolio, Contact)
  • Callouts: "Free Consultation," "500+ Clients," "10+ Years Experience"
  • Call extension: Click-to-call on mobile devices
  • Structured snippets: Service types, brands, product categories
  • Location: Show your business address and distance from the searcher

Mistake #5: Sending All Traffic to the Homepage

Your homepage is designed to introduce your business to everyone. A Google Ads landing page needs to speak directly to one specific audience about one specific problem. These are fundamentally different jobs.

If someone searches "ecommerce website development Mumbai," they should land on a page about ecommerce website development — not your homepage where they have to figure out where to click. Every unnecessary click is a lost conversion.

The Fix

  • Create dedicated landing pages for each ad group or campaign theme
  • Match the landing page headline to the search query
  • Include one clear CTA (call, form, WhatsApp) — not five different options
  • Remove navigation menus on landing pages to reduce distractions

Mistake #6: No Conversion Tracking

This one is shocking, but we see it constantly: businesses spending ₹50,000-₹2,00,000/month on Google Ads with zero conversion tracking set up. They have no idea which keywords, ads, or campaigns are actually generating leads or sales.

Without conversion tracking, you're literally spending blind. You can't optimise what you can't measure.

What to Track

  • Form submissions (use Google Tag Manager events)
  • Phone calls (Google Ads call tracking or a third-party solution)
  • WhatsApp clicks (track as conversion events)
  • Purchases and add-to-cart (for e-commerce)
  • Chatbot conversations started

Mistake #7: Wrong Bidding Strategy

Google offers multiple bidding strategies, and choosing the wrong one is like driving with the wrong gear. "Maximise Clicks" is the default — and it's almost never what you want because it optimises for volume, not quality.

When to use each Google Ads bidding strategy
Bidding StrategyBest ForMinimum Requirement
Manual CPCNew accounts, tight budgetsNone
Maximise ConversionsAccounts with conversion data15+ conversions/month
Target CPAMature accounts, consistent leads30+ conversions/month
Target ROASE-commerce with revenue tracking50+ conversions/month
Maximise ClicksBrand awareness onlyNone (but avoid for lead gen)

Mistake #8: Ignoring Device Performance

Not all devices convert equally. In India, 70%+ of Google searches happen on mobile, but for B2B services, desktop often converts at 2-3x the rate. If you're not checking device-level performance and adjusting bids accordingly, you're overspending on the wrong devices.

The Fix

Check Devices in your campaign reports. If mobile has a ₹500 cost-per-lead and desktop has ₹200, increase desktop bids by +30% and decrease mobile by -20%. Review monthly.


Mistake #9: Never Testing Ad Copy

Running a single ad per ad group is like placing one bet and hoping for the best. You should always have 3-4 active ads per ad group — including at least one Responsive Search Ad with 10+ headlines and 4 descriptions.

Test different angles: feature-focused vs. benefit-focused, urgency vs. trust, question headlines vs. statement headlines. Small copy changes can swing CTR by 20-50%.


Mistake #10: Wrong Campaign Type

Google pushes Performance Max and Smart campaigns because they're "easier." But for most Indian businesses spending under ₹5,00,000/month, a well-structured Search campaign outperforms Performance Max. PMax spreads your budget across Search, Display, YouTube, Gmail, and Maps — you lose control over where your money goes.

When to Use What

  • Search campaigns: Lead generation, services, B2B — always start here
  • Performance Max: E-commerce with product feeds, or accounts with 100+ conversions/month
  • Display: Retargeting only (not prospecting)
  • YouTube: Brand awareness with a separate budget

Mistake #11: Budget Spread Too Thin

Running 10 campaigns on a ₹30,000/month budget means each campaign gets ₹100/day — barely enough for 3-5 clicks. Google's algorithm needs data to optimise, and thin budgets don't generate enough data.

Better to run 2-3 focused campaigns with adequate budget than 10 starving campaigns that can never gather enough conversion data to optimise properly.


Mistake #12: Ignoring the Search Terms Report

The Search Terms Report shows you the actual queries people typed before clicking your ad. It's different from your keywords. Check it weekly without exception. You'll find irrelevant searches to add as negatives, and high-performing queries to add as exact match keywords.


Mistake #13: No Remarketing

Only 2-3% of website visitors convert on their first visit. Remarketing shows ads to people who already visited your site, reminding them to come back. It's the highest-ROI campaign type in Google Ads — typically 3-5x the conversion rate of prospecting campaigns — yet most small businesses don't set it up.

Remarketing Audiences to Create

  • All website visitors (last 30 days)
  • Service page visitors who didn't contact you
  • Cart abandoners (e-commerce)
  • Blog readers (for top-of-funnel nurturing)

Mistake #14: Poor Geo-Targeting

By default, Google targets people "in, or who show interest in" your selected locations. That "show interest in" part means someone in another country researching your city can see your ads. Change this to "Presence: People in or regularly in your targeted locations" in campaign settings.

Also review location performance. If you're targeting all of India but 80% of your leads come from 5 cities, focus your budget there.


Mistake #15: No Call Tracking

For service businesses in India, 40-60% of conversions happen via phone calls. If you're only tracking form submissions, you're missing half your conversions — which means Google's algorithm is optimising on incomplete data, and your reported CPA is artificially inflated.

Set up Google Ads call tracking, use call extensions, and track call-only campaigns separately.


Stop Wasting Budget — Start Getting Results

Fix these 15 mistakes and you could realistically cut your cost-per-lead by 40-60% while getting more conversions from the same budget. We've seen it happen hundreds of times.

Want a professional audit of your Google Ads account? Our Google Ads management team will identify exactly where your budget is leaking and how to fix it. We also offer comprehensive PPC management and lead generation services. Request a free audit — we'll show you what's broken and what it's costing you, no strings attached.

Tagsgoogle ads mistakesgoogle ads wasting moneygoogle ads budget wastegoogle ads not workinggoogle ads tips
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