Google Ads spend for small businesses varies enormously depending on industry, competition, and goals — but as a rough starting point, most small ecommerce stores need at least a few hundred pounds a month in ad spend before there’s enough data to properly optimise a campaign.
Why a minimum budget matters
Google Ads is an auction system that learns from data. Below a certain spend threshold, campaigns simply don’t generate enough clicks or conversions for Google’s algorithms — or you — to tell what’s actually working.
What affects your ideal budget
- Your average order value and profit margin
- How competitive your industry is on cost-per-click
- Whether you’re running Search, Shopping, or Performance Max campaigns
The honest answer is: it depends on your numbers. That’s exactly what a free ad account audit is for — book yours here.