If you have been running Google Ads campaigns for any length of time, you have almost certainly noticed the trend. Costs are climbing, and returns are getting harder to maintain. In 2026, this challenge has become one of the most pressing concerns for UK businesses of all sizes. Whether you are a small ecommerce store or a national service provider, the question is no longer whether PPC costs are rising, but how to fight back effectively.
This guide explains why PPC costs are increasing across the UK market, what it means for your advertising budget, and how partnering with a specialist PPC agency can help you protect your ROI. From the impact of AI Overviews to the importance of Quality Score optimisation, we will cover everything you need to know to navigate the changing landscape of paid search.
The Numbers: Just How Much Are PPC Costs Rising?
The data paints a clear picture. Across the UK, average cost per click (CPC) now sits between £3.33 and £3.65 across most industries, representing an increase of approximately 13 percent year on year. UK advertising spend reached £46.7 billion in 2025, intensifying competition across virtually every sector. More advertisers chasing the same keywords means higher bids, and higher bids mean higher costs for everyone.
But CPC is only part of the story. Google AI Overviews now appear in over 17 percent of searches and can cause CPC spikes of up to 97 percent on exact match keywords. According to Adthena UK market data, AI Overview frequency grew from 13.9 percent in August 2025 to 39.53 percent by May 2026. When Google shows AI generated answers above traditional ad placements, the remaining ad inventory becomes more expensive and more competitive.
For local service businesses, the situation is equally challenging. Local service ads have become increasingly popular, with strong demand indicating significant market interest. These ads operate on a pay per lead model rather than pay per click, which can offer better value for service based businesses. However, the competition for local service ads has intensified, driving up costs for busine