Do I Need SEO If I Am Running Google Ads

Updated September 2026 · Written and maintained by the Progression Agency strategy team

Treating this as a choice assumes the two channels do the same job at different prices. They do not: paid buys presence immediately and stops when the budget does, while organic accumulates slowly and persists. This page covers whether paid cannibalizes organic and how to measure it, the brand-bidding decision, why paid data is the fastest research available for organic, how to split budget, how to measure the two together, and what running both badly looks like.

They answer different questions, which is why the comparison misleads

Framing this as a choice assumes the two do the same job at different prices. They do not. Paid search buys presence immediately and stops the day the budget stops. Organic search accumulates slowly and persists.

That difference determines the sensible answer more than any performance comparison. A business that needs inquiries this quarter cannot wait for organic to mature, and one building an asset over several years is renting rather than owning if it relies solely on paid.

The question worth asking is therefore not which performs better but what each is for in your situation, and whether you can afford the time organic requires. Most businesses that can afford both should run both, for reasons that have little to do with either channel’s individual return.

The cannibalization question, answered carefully

The common worry is that paying for a term you already rank for wastes money, because the click would have arrived free. This is a legitimate concern and the honest answer is that it depends on a number you can measure rather than assume.

Some of those clicks are genuinely incremental: the searcher would not have scrolled to your organic listing, or would have clicked a competitor’s ad above it. Others are not incremental at all, and you paid for a visitor who was coming anyway. The proportion varies by query, by how far down the page your organic listing sits, and by how many ads appear above it.

The way to find out is a holdout test: pause paid on a defined set of terms for a period long enough to be readable, and measure whether total clicks and conversions fall by the amount paid was delivering. If total volume barely moves, paid was substituting for organic. If it falls close to the paid amount, it was incremental.

Run the test on a subset, not everything

Pausing all paid at once is unnecessarily risky and confounds the result with anything else happening that month.

Long enough to be readable

Two weeks is usually too short on anything but high-volume terms. A month gives most accounts enough volume to see a difference.

Measure total, not paid

The point is what happened to combined performance. Paid metrics falling is not a finding; it is the definition of the test.

Repeat it periodically

Incrementality changes as your organic position changes and as the results page changes around you. A finding from two years ago is not current.

Brand terms are the specific case worth deciding deliberately

Bidding on your own company name generates the most argument and has the clearest analysis available.

The case for it is defensive: competitors can bid on your brand, and if they do, an ad above your organic listing intercepts people who had already chosen you. The case against is that you already rank first for your own name, so most of those clicks would arrive free.

Both are true, and which dominates depends on whether competitors are actually bidding. Check rather than assume: search your brand from a clean browser and see. If nobody is bidding, brand paid is mostly buying clicks you would get anyway. If two competitors are, the calculation changes entirely, and the cost is usually low because your own brand terms are cheap for you and expensive for them.

Paid data is the fastest research available for organic

This is the strongest argument for running both, and it is rarely the one people make. Paid search returns within weeks what organic would take a year to teach you.

Paid tells you which phrasings people actually convert on, not merely which get traffic. It tells you which propositions work in a headline. It tells you what a lead from a given query is worth. All of that is directly transferable to deciding which organic pages to build and what they should say.

The reverse flow matters too. Organic search console data reveals the long tail of how people actually phrase things, which surfaces paid keywords worth testing. Agencies that run the two as separate programs with separate reports lose most of this, which is a real cost of splitting the work between suppliers.

How to split budget when you are running both

There is no correct ratio, and figures quoted as universal are not. The split follows from urgency and from where you already are.

A business with no organic presence and an immediate revenue need should weight heavily toward paid and treat organic as an investment funded from the margin paid generates. A business already ranking well for its commercial terms should weight toward organic maintenance and use paid selectively, on terms it does not rank for and on testing.

The one structural rule that does hold: never let organic work fall to zero while paid is performing. That is how businesses end up dependent on a channel whose cost they do not control, and the discovery usually comes when costs rise.

Start paid first when the need is immediate

It produces revenue and, more importantly, produces the query data that makes organic work better targeted.

Fund organic from paid margin

Treating organic as an investment rather than a cost makes the sequencing decision easier and the commitment more durable.

Shift the split as organic matures

The ratio should change over time. A fixed split maintained for years usually means nobody is reviewing it.

Keep paid for terms you will never rank for

Some queries are dominated by directories or vendors. Paid is the only realistic route to those, permanently.

Measure them together or the numbers will mislead you

Reporting the two channels separately produces two sets of figures that each look reasonable and add up to a misleading picture.

The specific distortion is attribution. A visitor who finds you through organic, leaves, then returns via a paid ad and converts will be credited to paid in a last-click model, which overstates paid and understates organic. The reverse also happens. Judging channel budgets on last-click routinely results in cutting the channel that started the journey.

The practical response is to look at combined performance against total spend, and to treat single-channel attribution as directional rather than decisive. If total cost per acquisition improves while both channels run, the combination is working regardless of how the credit is divided.

What running both badly looks like

Most of the value of running both is lost through a handful of avoidable arrangements.

Separate suppliers who never speak, so neither sees the other’s data. Separate reports that cannot be combined. Paid bidding on terms the organic pages already own, with nobody checking. Landing pages built for ads that duplicate organic pages, splitting signals between them. Ad copy and page copy making different promises. And a total budget that was never set: two channels each spending to their own plan with no view of the combined return.

The single most useful structural decision is that one person or team sees both. That does not require one supplier, but it does require someone whose job is the combined outcome rather than either channel’s individual performance.

Deciding when you genuinely cannot do both

Where budget only supports one, the decision comes down to time horizon and to what you already have.

Choose paid if you need results within the quarter, if you are testing whether demand exists at all, if your offer changes frequently, or if the queries you need are dominated by directories you will not outrank. Choose organic if the purchase is researched over time, if you can wait six to twelve months, if your margins cannot support paying per click indefinitely, or if you already have content assets that are underperforming for fixable reasons.

The one situation where the answer is unambiguous: if you cannot sustain paid indefinitely and have no organic presence, starting organic later is a decision to remain dependent on paid for another year.

What to do first if you are starting from nothing

The order that works for most businesses is narrower than a full program in either channel.

Run a small paid campaign on your clearest commercial terms, deliberately as research as much as for revenue. Within six to eight weeks it will tell you which phrasings convert, what a lead is worth, and which propositions land. Use that to decide which three or four organic pages are worth building properly, rather than guessing.

This sequence costs more in the first quarter than starting with organic alone and produces a considerably better-targeted organic program. It also means the organic investment is made against evidence rather than against keyword volume estimates, which are frequently a poor guide to what actually generates business.

Reference videos

Search and advertising fundamentals relevant to the decisions above.

Frequently asked questions