The average Google Ads account wastes 30–40% of its budget on ads that get impressions but never earn the click. And the culprit usually isn’t the bid strategy or the audience targeting — it’s the copy. Specifically, it’s copy written by someone who was thinking about their product when they should have been thinking about the searcher’s problem.
Writing Google Ads copy that converts isn’t about being clever. It’s about being relevant, specific, and credible in the 30 characters you have for a headline — and then doing it 14 more times inside a single Responsive Search Ad. Here’s exactly how to do that.
- Your Google Ads headlines need to mirror the searcher’s exact language — not your brand’s internal language — to win the click.
- RSAs give you 15 headline slots. You should fill all 15, and every one should serve a distinct persuasion angle.
- Ad Strength is a Google vanity metric. CTR and conversion rate are the only scores that matter.
- Descriptions are where you close — use them to neutralize objections, not just repeat the headline.
- Pinning headlines strategically (not obsessively) gives you control over message consistency without killing machine learning performance.
Why 90% of Google Ads Copy Gets Ignored (And How Yours Won’t)
Pull up your search results page right now. You’ll see three to four ads at the top. Most of them say something like “Industry-Leading Solutions” or “Trusted by Thousands.” The searcher sees those and their eyes glide right past them to the result that actually speaks to what they typed.
This is the first law of ad copywriting for PPC: your ad competes not just against other ads, but against every organic result on that page. You win by being more relevant to the search query than anything else in the SERP — not by sounding impressive.
The fix is simple in theory and harder in practice. Write to the query, not the product. If someone searches “affordable accounting software for small business,” your headline shouldn’t open with your product name. It should open with “Accounting Software Built for Small Business” — and if you can hit a price point or a key differentiator in the same headline, even better.
The RSA Framework That Fills All 15 Headlines Without Running Out of Ideas
Most accounts we audit have RSAs with 7–9 headlines and an “Average” Ad Strength rating. They ran out of ideas. The reason is they were writing variations of the same message instead of covering distinct persuasion angles.
Here’s the framework we use. Think of your 15 Google Ads headlines as five buckets of three headlines each:
Bucket 1: Search Intent Match (Headlines 1–3)
These are your most literal, keyword-forward headlines. They exist to tell Google’s algorithm — and the searcher — that your ad is relevant to exactly what was typed. Include the primary keyword or a close variant in at least two of these. These are usually your pinned Position 1 candidates.
Example: “Google Ads Management Services,” “PPC Management for B2B,” “Google Ads Agency — Get Started.”
Bucket 2: Value Proposition (Headlines 4–6)
What do you actually do better? Be specific. “Save 20% on Your First Month” beats “Affordable Pricing.” “Campaigns Live in 5 Business Days” beats “Fast Setup.” If you have a number, use it. Numbers in headlines improve CTR by an average of 15–20% in our testing across client accounts — because they signal specificity in a sea of vague claims.
Bucket 3: Credibility & Social Proof (Headlines 7–9)
This is where you borrow trust. “500+ Active Clients,” “4.9★ on Google Reviews,” “BBB A+ Rated,” “$50M+ in Managed Ad Spend.” You don’t have to have all of these — pick the ones you can legitimately claim. One strong credibility signal in an ad headline can meaningfully lift CTR, especially for higher-consideration purchases.
Bucket 4: Objection Handling (Headlines 10–12)
What’s the reason someone wouldn’t click? Price anxiety? Commitment concerns? Fear of wasting budget again? Write headlines that pre-empt those hesitations. “No Long-Term Contracts,” “Free Account Audit — No Obligation,” “Cancel Anytime.” These headlines don’t always show — but when Google’s algorithm serves them to the right person at the right moment, they convert at a significantly higher rate.
Bucket 5: CTA & Urgency (Headlines 13–15)
Strong action-oriented headlines that make the next step obvious. “Get Your Free Proposal Today,” “Book a Strategy Call This Week,” “See Pricing in 60 Seconds.” Don’t save your CTA only for descriptions — test it in headlines too. A clear, low-friction CTA headline often outperforms your cleverest benefit headline.
How to Write Descriptions That Close, Not Just Describe
Here’s the mistake we see constantly: advertisers write descriptions like they’re writing a second headline. They just repeat the value prop in slightly different words. That’s a wasted 90 characters.
Your two responsive search ads copy descriptions should do different jobs:
Description 1: Expand and reassure. Take your strongest value proposition and back it up. “Our Google Ads specialists manage over $2M in monthly spend — and every client gets a dedicated account manager, weekly reporting, and a results guarantee.” That’s one description that does three jobs: specificity, service detail, and a risk-reversal signal.
Description 2: Handle the objection and drive action. “No jargon, no vanishing acts. Just transparent reporting, proactive optimizations, and a team that answers your messages. Schedule a free audit today.” You’ve named a common pain point (agencies going dark), planted a credibility promise (transparency), and ended with a clear CTA.
One tactical note: always end at least one description with a call to action that matches your landing page’s primary CTA. Message match between the ad and landing page is one of the most underrated Quality Score levers you have.
The Pinning Strategy Most Guides Get Wrong
Pinning headlines in RSAs is one of the most debated topics in PPC circles. Google’s official stance is basically “don’t pin — let us optimize.” Our stance, after managing hundreds of accounts: pin selectively and strategically, not compulsively.
Here’s when pinning makes sense:
- Legal or compliance requirements that mean certain language must always appear (regulated industries, specific disclaimers folded into headline text).
- Brand consistency when your Position 1 headline must always be the brand name or a specific campaign message tied to a promotion.
- Testing isolation — when you want to measure how a specific value prop performs in a fixed position across all ad combinations.
What you should not do: pin 8 of your 15 headlines. At that point you’ve turned your RSA into an extended text ad and surrendered the machine learning advantage that makes RSAs worth using. Aim to pin no more than 3–4 headlines across all three positions, and always pin at least two options per pinned position so Google has something to choose between.
The Quality Score Trap (And What to Chase Instead)
Quality Score lives in your account. It’s a 1–10 score made up of Expected CTR, Ad Relevance, and Landing Page Experience. It does matter — a higher Quality Score lowers your CPC and improves your ad rank. But here’s the trap: optimizing directly for Quality Score often pulls you away from optimizing for conversions.
We’ve seen accounts with Quality Score 8s and 9s across the board that had terrible ROAS. Why? Because the team was writing for keyword stuffing and click-bait to boost Expected CTR, while the landing page experience was mediocre and the leads were unqualified.
Chase these metrics instead:
- CTR vs. your industry benchmark — for search ads, a 5–8% CTR is solid in most B2B verticals. Below 3%? Your copy or targeting has a problem.
- Conversion rate post-click — if your ad CTR is strong but post-click conversion rate is under 3%, the ad is making promises the landing page doesn’t keep.
- Impression share on your top-performing ad groups — if you’re winning the click but losing impression share to competitors, your copy might be winning quality but losing volume.
Quality Score is a diagnostic tool. Treat it like a check-engine light — worth investigating when it’s low, but not something to optimize in isolation.
A/B Testing RSA Copy Without Losing Your Mind
RSAs make traditional A/B testing harder because Google is already rotating combinations internally. But that doesn’t mean testing is dead — it just means you need a different approach.
Run ad variation experiments at the ad group level: one RSA built around your control messaging, one RSA built around a challenger angle. Let them run against each other for a minimum of 4–6 weeks, targeting at least 200–300 impressions per ad. Then evaluate CTR, conversion rate, and cost per conversion — not Ad Strength.
Some of the most impactful copy tests we’ve run across client accounts:
- Feature-led vs. outcome-led — “AI-Powered Reporting Dashboard” vs. “Know Exactly Where Every Ad Dollar Goes.” Outcome-led wins about 65% of the time in B2B.
- Price transparency vs. price avoidance — showing a starting price vs. leading with the outcome. Highly industry-dependent. Test it.
- Brand name in headline 1 vs. keyword in headline 1 — for non-branded campaigns, the keyword almost always wins on CTR. Brand name in position 1 is often an ego play, not a performance play.
FAQ: Writing Google Ads Copy That Converts
How many headlines should I write for a Responsive Search Ad?
All 15. Google’s own data shows RSAs with 15 headlines get more opportunities for the algorithm to find winning combinations. Running out of ideas at 9 means you’re writing variations when you should be covering new persuasion angles. Use the five-bucket framework above and you’ll hit 15 without forcing it.
Does including the keyword in my Google Ads headline actually help?
Yes — for two reasons. First, Google bolds keywords in ad headlines when they match the search query, which visually draws the eye and improves CTR. Second, keyword inclusion signals relevance to Google’s algorithm, which contributes to your Ad Relevance score inside Quality Score. Put keyword-matched headlines in at least 2–3 of your 15 slots.
What’s the biggest mistake people make writing RSA copy?
Writing every headline to work as a standalone and ignoring how combinations read together. Google will serve three headlines at once. “Get Started Today | Get Started Today | Learn More” is a nightmare combination that has actually shown up in real accounts we’ve audited. Read your headlines in groups of three as you write them. If a weird combination would embarrass you, either rewrite or pin strategically.
How long should I run an RSA before judging its performance?
Minimum 30 days or 500 impressions, whichever comes later — and honestly, 60 days is better for lower-volume ad groups. Google needs time to identify winning combinations. Judging an RSA at day 10 with 80 impressions is like walking out of a movie after the opening scene.
Should I use Dynamic Keyword Insertion (DKI) in my RSA headlines?
DKI can boost CTR on high-volume, tightly themed ad groups — but it’s a crutch when overused. If your ad groups are properly structured with tightly related keywords, you shouldn’t need DKI to achieve relevance. And DKI can produce genuinely embarrassing headline outputs if your keyword list isn’t meticulously curated. Use it surgically, not as a default.
Does ad copy affect my Quality Score directly?
Yes, through two of the three Quality Score components: Expected CTR (better copy = more clicks = higher expected CTR over time) and Ad Relevance (how closely your ad matches the intent behind the search query). Landing page experience, the third component, is determined by your post-click destination — not the ad itself.
If Your Agency Hasn’t Updated Your RSA Copy in 90 Days, Ask Why
Great Google Ads copy is never finished — it’s iterated. Markets shift, competitors change their messaging, and the search terms your customers use evolve. An agency or in-house team that wrote your RSAs in Q1 and hasn’t touched them since isn’t optimizing. They’re coasting.
At minimum, your copy strategy should include quarterly headline audits, monthly review of Google’s asset performance labels (Low / Good / Best), and ongoing ad variation testing for any ad group spending more than $1,000/month.
If you’re not sure whether your current Google Ads copy is holding your account back, the fastest way to find out is a proper account audit — one that looks at CTR by ad group vs. industry benchmarks, asset-level performance inside your RSAs, and message match between your top ads and their landing pages.
That’s exactly what we do in our free Google Ads audit. No pitch deck, no vague recommendations — just a clear breakdown of where your copy is costing you clicks and conversions, and what to do about it.
Request your free audit here and we’ll have findings back to you within 3 business days.