Cost per click (CPC) for accounting-related keywords in the UK ranges from £2 to £10 or more, depending on the keyword specificity, location, and competition. Reducing CPC without sacrificing conversion volume — through better Quality Scores, smarter keyword targeting, and tighter campaign structure — is how accounting firms get more enquiries from the same budget.

Why CPCs are high for accounting keywords

Accounting is a high-intent, commercially valuable service category. Advertisers bid competitively because a new client acquired through Google Ads can be worth hundreds to thousands of pounds per year. Where commercial intent is high and conversion value is high, CPCs follow.

You cannot negotiate with the market. What you can control is whether you are paying high CPCs for relevant, converting traffic — or high CPCs for irrelevant searches that produce no return.

Improving Quality Score to reduce CPC

Quality Score is the single most powerful lever for reducing CPC. Google's auction mechanism means that a higher Quality Score directly reduces what you pay, because your Ad Rank (which determines both position and cost) is the product of bid and Quality Score.

A keyword with a Quality Score of 8 at a £3 bid achieves a higher Ad Rank than a competitor with a Quality Score of 4 at a £5 bid — and pays less per click.

Actions to improve Quality Score:

  • Match ad headlines closely to the keyword being searched.
  • Build tightly themed ad groups so one ad is relevant to all keywords in the group.
  • Send ad traffic to a specific landing page about the service, not the homepage.
  • Ensure the landing page loads quickly on mobile.
  • Include the keyword or close variant on the landing page itself (not just in the ad).

A Quality Score improvement from 5 to 8 can reduce CPC by 30 to 50% — a more significant saving than any bid reduction.

Tightening keyword targeting

Broad and loosely matched keywords generate clicks from searchers who are not relevant clients. Irrelevant clicks cost money without producing conversions. The result is high average CPC against low conversion rate — the worst possible combination.

Switch from broad match to exact and phrase match on your primary keywords. The reach reduction is real — you will generate fewer impressions and clicks — but the quality of clicks improves, and your effective cost per enquiry falls even if the headline CPC stays similar.

Add a comprehensive negative keyword list to prevent budget being spent on job seekers, students, and software searches.

Review the search terms report monthly and add irrelevant queries as negatives. This is the ongoing maintenance that keeps CPCs aligned with conversion intent.

Bidding strategy adjustments

If you are on Manual CPC, your maximum bid directly caps what you pay. Lower bids mean lower CPCs but also lower Ad Rank and fewer impressions. The right bid balances visibility against cost:

  • For keywords that consistently convert, bid competitively — the acquisition cost justifies the CPC.
  • For exploratory keywords with no conversion history, bid conservatively until they prove their value.
  • Pause keywords that have spent budget without producing a single conversion over 60 to 90 days.

If you have accumulated 30+ conversions per month, Target CPA automated bidding can reduce CPCs on an effective basis — the algorithm finds lower-competition auctions where conversions are still likely.

Location and device bid adjustments

CPCs vary by location and device. Large cities have more advertisers competing, which drives up CPCs. If you serve both a city centre and surrounding towns, consider whether a lower-CPC campaign targeting the suburbs is more cost-effective than competing for city-centre keywords.

Device bidding allows you to reduce bids for devices that convert at lower rates. If your conversion rate is significantly lower on desktop than mobile (check in the device report), apply a bid reduction for desktop traffic to shift more budget toward your better-performing device type.

Time of day and day of week adjustments

Ad scheduling lets you run ads only during hours and days when clicks are most likely to convert. For an accounting firm that receives enquiries primarily on weekdays between 9am and 5pm:

  • Reduce bids or pause ads during evenings, weekends, and outside working hours.
  • Review the hour of day and day of week reports (in Campaigns > Schedule or Reports) to see when conversions happen.
  • Apply bid adjustments to increase presence during high-conversion periods.

Concentrating budget on high-conversion times reduces wasted spend on low-intent hours.

Long-tail keywords

Generic local keywords ("accountant London") have higher CPCs than more specific long-tail keywords ("IR35 accountant for contractors London"). Long-tail keywords have lower search volume but lower competition — and the searcher's intent is more specific, which typically means higher conversion rates.

A keyword with half the CPC and twice the conversion rate costs four times less per enquiry. Building a keyword list that includes specific long-tail terms alongside broader local terms typically reduces average CPC across the account while maintaining conversion volume.

Key takeaways

  • Quality Score improvement is the most powerful CPC reduction lever — a higher score directly reduces what you pay per click in Google's auction.
  • Tighter keyword match types (exact and phrase instead of broad) reduce irrelevant clicks, lowering effective cost per enquiry even if headline CPC stays similar.
  • Pause keywords that have spent budget for 60 to 90 days without a single conversion.
  • Use ad scheduling to concentrate budget on hours and days when conversions are most likely.
  • Long-tail keywords with lower CPCs and higher conversion intent produce better cost per enquiry than generic broad terms.

Frequently asked questions

Can we lower our maximum CPC bids to reduce costs without losing too much traffic?

Yes, within limits. Reducing bids reduces Ad Rank, which means you win fewer auctions and appear in lower positions. A moderate bid reduction may have little impact on impression share if your Quality Score is high; a significant reduction may cause your ads to stop showing in many auctions. Test bid reductions in small increments (10 to 15%) and monitor impression share and conversion volume before making larger changes.

Should we lower bids on keywords where we are in position 1 consistently?

If your average position is consistently 1.0 to 1.5 and your impression share is high, you may be over-bidding. Google's auction charges you only enough to beat the next highest Ad Rank — if you are winning comfortably, you can often reduce bids and maintain position. Test a 10 to 15% reduction and monitor position over two weeks.

Does reducing the number of keywords reduce average CPC?

Removing low-performing keywords reduces average CPC across the account because you stop including high-CPC, low-quality clicks in the average. This is a reporting improvement but also a real efficiency gain — budget concentrates on keywords that convert.

Do broad match keywords always have higher CPCs than exact match?

Not necessarily in absolute terms — a broad match keyword may trigger a query with lower competition and a lower CPC. But broad match averages a lower Quality Score (because the triggered query is often less closely matched), which means you pay more for the same Ad Rank relative to a well-matching exact keyword. Effective CPC per conversion is consistently higher with broad match.