Free guide · 2026

Complete Guide
Google Ads 2026: From Setup to Maximum ROAS

How to build profitable Google Ads campaigns from scratch and avoid the mistakes that cost thousands of euros.

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Complete guide + checklist
Free PDF · Updated July 2026
  • Checklist pas-cu-pas
  • Ready-to-use templates
  • Case studies from Romania
  • Real KPIs and benchmarks
  • Common mistakes to avoid

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4-8×
average ROAS for optimised Google Ads campaigns
89%
of buying journeys start with a Google search
65%
of clicks come from mobile
3-5%
average CTR for optimised Search campaigns

Essential steps

The methodology that delivers real results

01

Research and strategy

60% of a campaign's success is decided before you press Publish.

  • Define the objective: purchases, leads, calls
  • Calculate the maximum viable CPA based on margin
  • Analyse the competition: which ads competitors are running
  • Keyword research: match types + negative keywords
02

Campaign → ad group structure

A wrong structure is the main cause of wasted budget.

  • One campaign = one clear objective
  • Thematic ad groups: max 10-15 keywords each
  • At least 3 RSA ads per ad group
  • Brand vs. non-brand in separate campaigns
03

Ad copy that performs

The ad copy decides whether the user clicks.

  • Main keyword in Headline 1
  • Specific benefit in Headline 2
  • Clear CTA in Headline 3
  • Extensions: Sitelinks, Callouts, Call, Price
04

Dedicated landing pages

Paid traffic to the homepage is money thrown away.

  • A dedicated landing page per campaign
  • Message match with the ad (consistent message)
  • Form or CTA above the fold
  • Loading time under 2.5 seconds on mobile
05

The right bidding strategy

Google's algorithm is powerful, but needs correct configuration.

  • Start: Manual CPC or Maximise Clicks (2-4 weeks)
  • After 30+ conversions: Target CPA or ROAS
  • Performance Max: at least 50 conversions/month
  • Don't change bid strategy more often than every 2 weeks
06

Continuous optimisation

Google Ads needs weekly attention.

  • Search Terms report: negative keywords weekly
  • Pause ads with CTR under 1% or CPA above target
  • A/B test headlines every 30 days
  • Audience exclusions: existing customers, bounced

Frequently asked questions

What is the minimum budget for Google Ads to work?

At least 500-800 EUR/month for local services and 1,500+ EUR/month for ecommerce. Below these thresholds, the algorithm doesn't have enough data for Smart Bidding.

How quickly will I see results?

The first leads or purchases appear 24-72 hours after launch. Optimised campaigns reach peak performance in 4-8 weeks (learning phase + adjustments).

What is Performance Max?

PMax is Google's AI format that runs across all channels simultaneously. We recommend it once you have at least 50 conversions/month in the account, an updated catalogue and a budget of €1,000+/month.

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