Paid search can be one of the most efficient ways to generate leads and revenue — but small, easy-to-miss mistakes can silently drain budget for months without anyone noticing. Here are seven of the most common issues we see when auditing new client accounts, and what to do instead.
1. Neglecting Negative Keywords
Without a solid negative keyword list, ads often show up for irrelevant searches that will never convert — costing clicks with zero return. A campaign selling premium office furniture, for example, might waste budget on clicks from people searching ”free office furniture” or ”office furniture jobs.” Reviewing search term reports weekly and building out negative keywords is one of the simplest ways to cut wasted spend immediately.
2. Sending Traffic to Generic Landing Pages
Directing ad clicks to a homepage instead of a dedicated, relevant landing page is one of the most common — and costly — mistakes. Visitors expect the page they land on to match exactly what they searched for. A mismatch between ad promise and landing page content increases bounce rates and quietly tanks Quality Score, which in turn drives up cost per click across the entire account.
3. Ignoring Ad Schedule and Location Data
Not every hour of the day or every location performs equally. Running ads 24/7 across an entire country when your best conversions cluster in specific hours or regions means paying full price for underperforming impressions. Reviewing performance by day-part and geography, then adjusting bids accordingly, is a quick way to reallocate budget toward what’s actually working.
4. Setting and Forgetting Bid Strategies
Automated bidding strategies like Target CPA or Maximise Conversions can work well, but only when given accurate targets and enough conversion data to learn from. Switching strategies too frequently, or setting an unrealistic target, resets the algorithm’s learning phase and often causes performance to become erratic rather than more efficient.
5. Overlooking Ad Extensions
Sitelinks, callouts, structured snippets, and other ad extensions aren’t just cosmetic — they increase ad real estate, improve click-through rate, and contribute to Quality Score. Accounts running without a full set of extensions are often leaving free performance gains on the table.
6. Failing to Track Conversions Properly
It’s surprisingly common to find accounts where conversion tracking is either broken, duplicated, or tracking the wrong actions entirely — meaning every optimisation decision is being made on flawed data. Before making any strategic changes to a campaign, it’s worth auditing conversion tracking setup to confirm it accurately reflects real business outcomes, not just form submissions or button clicks that don’t represent genuine leads.
7. Treating Every Keyword the Same
Not all keywords deserve equal bid amounts or budget priority. High-intent keywords close to the point of purchase (e.g. ”book a call SEM agency”) typically deserve higher bids than broader, top-of-funnel terms (e.g. ”what is PPC”). Applying a flat bidding approach across a mixed-intent keyword list often means overpaying for low-intent clicks while underfunding the terms that actually convert.
The Bottom Line
Most wasted PPC spend doesn’t come from one dramatic error — it comes from small inefficiencies compounding quietly over weeks and months. Regular account audits, careful attention to search term data, and disciplined conversion tracking are usually enough to catch the majority of these issues before they add up.
Wondering how much of your current ad spend might be going to waste? Book a call with SEM Forge for a free account audit.