What is podcast advertising and how does it work?

Podcast advertising places your message inside podcast episodes, either read aloud by the host as a personal endorsement, or inserted as a pre-recorded ad before, during, or after the episode. It works by reaching an engaged, attentive audience in a trusted environment, often carrying the weight of a recommendation from a host the listener already knows and likes.

That is the essence of it. Below, we explain how the different ad types work, what podcast advertising costs, who it suits, and how to avoid overpaying for reach you do not need. We are an independent media planning and buying agency, so this is written to help you make a good decision rather than to sell you any particular format.

How does podcast advertising work?

Podcast advertising works in one of two main ways: host-read ads or pre-recorded (also called announcer-read or programmatic) ads.

Host-read ads are delivered by the podcast’s own presenter, usually from a short brief you provide, in their natural voice and style. Because listeners trust the host, these ads feel less like advertising and more like a personal recommendation, which is what makes podcasts distinctive. They generally cost more than pre-recorded spots but tend to deliver stronger engagement and recall.

Pre-recorded ads are produced in advance and inserted into episodes, often across many shows at once. These can be bought programmatically, meaning your ad is placed automatically across a network of podcasts and targeted to listeners by interest, demographics, or location, without negotiating with each show individually. This route is more affordable and lets you reach scale across many shows, trading the personal endorsement for efficiency.

Ads are also described by where they sit in the episode: pre-roll (at the start), mid-roll (partway through, generally the most valuable because listeners are settled in), and post-roll (at the end).

Who is podcast advertising best for?

Businesses that want to reach an engaged, attentive audience in an environment with high trust and very little ad clutter. It is especially effective for products and services that benefit from a bit of explanation or a credible endorsement, rather than an impulse purchase. If your offering needs someone to understand it before they buy, a host talking it through in their own words does real work. Because programmatic buying and smaller niche shows keep the entry cost low, it is also accessible to modest budgets, not just brands sponsoring chart-topping podcasts.

How much does podcast advertising cost?

Podcast advertising is usually priced on a CPM basis, meaning cost per thousand listens. UK podcast CPMs commonly range from around £15 to £40 or more per thousand, depending on the show’s size, the ad type, and how targeted the placement is. Host-read mid-roll ads on sought-after shows sit at the higher end; pre-recorded spots bought programmatically across many smaller shows sit lower.

What drives the price:

The show itself matters most, because a popular podcast with a devoted audience commands a premium. Ad type is next, as host-read costs more than pre-recorded because it takes the host’s time and carries their credibility. Placement plays a part, with mid-roll usually costing more than pre- or post-roll. And targeting affects it too, since narrowly targeted, high-intent audiences cost more per thousand than broad ones.

There is a useful thing to understand about how this market is structured. Podcast networks and the larger shows naturally lead with their premium host-read inventory, because it is their most valuable product, and for the right brand it genuinely is worth it. But it is not always the format your objective needs. A well-targeted run of pre-recorded ads across relevant smaller shows can sometimes deliver the outcome you are after at a lower cost per result. Neither is right or wrong; it depends entirely on what you are trying to achieve. Because we do not own any of this inventory, we can look at both routes and recommend the one that fits your goal and budget, not the one that happens to carry the highest rate.

Why is podcast advertising so effective?

Podcast advertising is effective because of trust and attention. Listeners choose their podcasts deliberately, often listen through headphones, and tend to stay with an episode rather than skipping around. When a host they follow recommends a product in their own voice, it lands with a credibility that most advertising formats cannot match, and brand recall from podcast ads is consistently high.

The honest caveat is that this strength comes with a trade-off. Podcasts are largely a consideration and trust-building channel rather than a mass-reach one. Individual shows have smaller audiences than radio or TV, so you build scale by combining shows, and measurement, while improving, is not as precise as click-tracked digital. It is a channel that rewards being clear about your objective before you spend.

How do you measure podcast advertising?

Podcast performance is commonly tracked using unique discount codes, dedicated landing pages or vanity URLs, and pixel-based attribution where the platform supports it. Because these methods are less precise than click-tracked digital display, the most reliable approach is to decide how you will measure success before the campaign starts, and to give each show or placement its own code or URL so you can see what is actually working. Getting this in place up front is the difference between knowing which podcasts earned their keep and guessing.

How does podcast advertising compare to radio?

Podcast and radio advertising both use audio, but they are not the same buy. Radio broadcasts the same ad to everyone tuned in and offers large, immediate reach. Podcast advertising reaches smaller, self-selected audiences with far higher engagement and the option of a personal host endorsement.

In practice they complement each other. Radio builds broad awareness quickly; podcasts deepen trust and explain a proposition to a committed audience. Many effective audio campaigns use both, and you can read more in our guide to radio advertising.

Planning a podcast campaign

Podcast advertising rewards matching the right show and the right ad type to your objective, rather than simply buying the biggest name available. Because we plan across the whole market and hold no inventory of our own, we can weigh host-read against programmatic, large shows against niche ones, and build a plan around what actually delivers for you.

Looking to find out more about podcast advertising and want an honest view of whether it fits your goals?

Our podcast advertising page explains how we plan and buy it, or you can get in touch to discuss your campaign.