How to Actually Achieve 4x+ ROAS on Google Ads for B2B: A No-Nonsense Framework

The Uncomfortable Truth About B2B PPC

Most Google Ads agencies optimise for click-through rate. You should optimise for revenue. These are not the same thing, and the gap between them is where budget goes to die.

Here's the framework we've used to consistently achieve 3–5x ROAS across B2B clients.

Step 1: Define Your Actual Conversion Event

Not 'form submissions'. Not 'time on site'. The conversion event that maps to revenue.

For B2B, this is almost always:

• Demo booked (weighted by show rate)
• Trial activated (weighted by activation rate)
• Quote requested (weighted by close rate)

If you can't attribute a revenue value to your conversion event, you can't optimise toward profitability. Get the CRM data mapped to Google Ads before launch.

Step 2: Campaign Architecture

We use a three-layer campaign architecture:

Brand Campaign

Always run brand. CPCs are pennies. Protects your traffic from competitors bidding on your name. Treat it as brand insurance, not lead generation.

High-Intent Non-Brand

Keywords like [service] [city], [service] software, [service] company UK. These are your revenue keywords. Separate campaigns, separate budgets, manual CPC or Target CPA bidding.

Competitor Campaign

Bid on close competitors by name. Conversion rates are lower, but CPCs are usually cheap and these searchers are already solution-aware.

Step 3: Keyword Match Type Discipline

Broad match in 2025 is not the same beast it was in 2020. Google's algorithm expands it aggressively. Use it only when:

• You have conversion data (500+ conversions) for smart bidding to learn from
• You monitor the Search Terms report daily for the first 4 weeks

For new campaigns, start exact and phrase match only. Build your negative keyword list before you expand.

Step 4: The Landing Page Is 50% of the Result

Sending B2B PPC traffic to your homepage is a budget incinerator. Dedicated landing pages for each campaign theme should:

• Mirror the ad's headline exactly
• Have one CTA above the fold
• Include social proof (logos, testimonials, review score)
• Load in under 2.5 seconds on mobile
• Have no navigation menu (remove all exit routes)

Test this: Take your top-spending campaign. Create a dedicated landing page for it. In our experience, this single change improves conversion rate by 40–80%.

Step 5: Bidding Strategy Progression

1. Launch: Manual CPC with enhanced delivery. Learn what keywords convert.
2. Month 2–3 (30+ conversions): Switch to Maximise Conversions. Let Google's algorithm start learning.
3. Month 4+ (100+ conversions): Switch to Target CPA or Target ROAS. Now you're in control of profitability.

Don't jump to Target ROAS without conversion data. The algorithm needs signal.

Step 6: The Weekly Optimisation Cadence

Every Monday:

• Search Terms report: mine negatives, identify new expansion opportunities
• Device performance: are mobile conversions profitable? Adjust bid modifiers
• Time-of-day: when do conversions happen? Apply bid adjustments
• Audience overlays: which audiences convert above average?

Every Month:

• Ad copy refresh: test one new variant per ad group
• Landing page CRO: test one new element (headline, CTA, social proof)
• Budget reallocation: shift from underperforming to over-performing campaigns

The ROAS Math

If your average customer lifetime value is £5,000 and close rate is 20%:

• A SQL (qualified lead) is worth: £5,000 × 20% = £1,000
• Target CPA for a qualified lead: £100–£200 (10–20% of value)
• If you're paying £50/lead, your ROAS floor is 20x on lead value

Most B2B accounts we audit have no idea what a lead is worth. Fix this first.