Google Ads vs SEO: where should your marketing budget go?

It's one of the first questions almost every business asks us: should the money go into Google Ads or into SEO? Usually it's framed as a choice — one or the other, pick a side. The honest answer is that they do different jobs, on different timelines, for different kinds of money, and the real skill is knowing how to split a budget between them rather than crowning a winner. This is a look at how each one actually behaves, with real UK numbers, so you can decide where your next pound is best spent.

They solve different problems

Google Ads buys you visibility today. You set a budget, choose the searches you want to appear for, and within hours your ad can be sitting at the top of the results for "emergency plumber Newcastle" or "commercial coffee supplier". The moment you stop paying, you disappear. It is rented attention — fast, controllable, and gone the instant the meter stops.

SEO earns you visibility over time. You improve the site, publish pages that genuinely answer what people search for, fix the technical foundations, and slowly climb the organic results. It's slow to start and impossible to switch on overnight, but once you're there, the traffic keeps arriving whether or not you spent anything that day. It's an asset you own rather than a bill you keep paying.

So the question isn't really "which is better". It's "do I need customers this week, or am I building something that pays off for years?" Most businesses need both, which is the whole point.

What each one actually costs in the UK

Let's put numbers on it, because vague talk of "it depends" helps nobody. These are realistic UK ranges for a small-to-mid-sized business, not guarantees — your sector matters enormously.

• Google Ads — cost per click: typically £0.50 to £5.00, though genuinely competitive terms (legal, insurance, some trades) can run well above that. You're bidding against everyone else who wants that click.
• Google Ads — monthly spend: a meaningful campaign usually starts around £500–£1,500 per month in media, plus management. Under about £300 you rarely gather enough data to improve anything.
• SEO — monthly investment: broadly £500–£2,000+ per month for ongoing work — content, technical fixes, and earning links — with results building over months, not days.

The critical difference is what happens to those numbers over time. Ads cost the same per click in month twelve as they did in month one; if anything they creep up as competitors bid harder. Good SEO does the opposite. The upfront cost is real, but as rankings compound, your cost per lead falls — sometimes dramatically — because you've stopped paying for every single visitor.

Ads are a tap you can turn on and off. SEO is a well you have to dig. One gives you water today; the other means you stop paying the water company.

Speed versus staying power

If you need leads by Friday, this isn't a close contest — Google Ads wins outright. A new campaign can be live the same afternoon and producing enquiries by the weekend. That makes paid search genuinely valuable for a launch, a seasonal push, testing a new product, or simply keeping the phone ringing while slower work matures. Our Google and Meta Ads work is built around exactly that: buying qualified attention efficiently and not wasting spend on clicks that were never going to convert.

SEO asks for patience. Even done well, it typically takes three to six months to see real movement, and competitive terms can take a year or more. We've written honestly about the reasons in how long SEO actually takes — there are no shortcuts worth having, and any agency promising page one in thirty days is either misleading you or about to do something that gets you penalised. But the reward for that patience is traffic that doesn't switch off when the budget does. That's why serious SEO is less a campaign than a long-term investment in the business.

The mistake is treating it as either/or

Here's what we actually recommend to most clients, and it isn't a fence-sitting "do both". It's a sequence.

Start with ads, because you need cash flow and data now. Point them at your most valuable, highest-intent searches — the ones where a click is genuinely likely to become a customer. Crucially, your ad account then becomes a research tool: the exact search terms that convert in paid tell you, with real money behind the evidence, which organic pages are worth building. You're not guessing what to write about; the market has already shown you.

Then invest in SEO in parallel, building durable pages and fixing the foundations underneath them. As those organic rankings climb for a given term, you can ease off paid spend on it and redirect that budget to the next opportunity. Over a year or two the shape of your spend shifts — heavy on ads at the start, mostly organic by the end — and your blended cost per lead comes down as it does. None of this works, incidentally, if the site itself is slow or badly built. Paid clicks landing on a page that takes five seconds to load are money set on fire, which is why conversion rate optimisation quietly determines whether either channel pays off.

So where should your budget go?

If you can only fund one properly, be honest about your situation. Brand new, no rankings, need enquiries this month? Weight it toward ads and accept you're renting your visibility for now. Established, decent site, want to reduce a reliance on paid clicks that only ever gets more expensive? Weight it toward SEO and give it the time it needs. And if part of the problem is that your site simply isn't ready to earn organic traffic yet, that's a foundations question first — our guide to what a website costs in the UK is a sensible place to start before spending a penny on either channel.

For most businesses, though, the right answer is both, sequenced deliberately rather than run on instinct. If you'd like a straight assessment of where your money would work hardest — ads, SEO, or a specific split between them — tell us what you're trying to achieve and we'll give you an honest view, not a sales pitch.