Podcast advertising has grown into a multi-billion-dollar industry, but most brands still approach it without a clear process. They pick a popular show, write a script, wire some money, and wait to see what happens. Then they wonder why results are inconsistent.
Buying podcast ads well is a skill. This guide walks through every step: how podcast ads work, what they cost, how to find the right shows, and how to measure whether the spend is actually working.
Before buying, you need to understand the two primary ad delivery models. They are fundamentally different and have different implications for targeting, tracking, and cost.
Dynamically inserted ads are dropped into episodes at the time of download, not at the time of recording. The ad is a standalone audio file that the hosting platform inserts into a designated slot in the episode. The same episode can serve different ads to different listeners, or different ads over time as campaigns rotate.
Advantages of DAI:
Disadvantage: DAI ads sound like ads. They are clearly separate from the host's voice and content, which reduces the trust transfer that makes podcast advertising effective.
Baked-in ads are recorded by the host as part of the episode and are permanently embedded in the audio file. Every future listener of that episode hears the same ad in the host's voice. There is no targeting and no rotation.
Advantages of baked-in:
Disadvantage: No targeting, no mid-flight changes, and harder attribution.
For B2B brands, baked-in host-read ads on relevant shows typically outperform DAI because the audience trust is higher and the CPM is earned rather than purchased.
Podcast ads are sold by placement within the episode.
Pre-roll: First 60 seconds of the episode. High completion rates because listeners have not yet invested in the content. Typically 15 to 30 seconds.
Mid-roll: Placed at a natural break mid-episode. The most valuable placement because listener attention is at its peak. Standard length is 60 seconds. Costs more than pre-roll.
Post-roll: At or near the end of the episode. Lowest completion rates, lowest cost. Rarely worth the spend for brand-building goals.
For most B2B campaigns, mid-roll on niche-targeted shows delivers the best CPM-to-impact ratio. Pre-roll is acceptable for direct response campaigns where you need the click urgently.
Podcast advertising is sold on a CPM (cost per thousand listeners) basis. Industry benchmarks as of 2026:
| Placement | CPM Range |
|---|---|
| Pre-roll (15-30 sec) | $15 to $25 |
| Mid-roll (60 sec) | $25 to $45 |
| Niche B2B shows | $40 to $80+ |
| Host-read sponsorship (flat rate) | Varies by show size |
Niche professional podcasts with audiences of 1,000 to 5,000 listeners often charge flat sponsorship rates rather than CPM. A show with 2,000 downloads per episode might charge $300 to $800 per episode. That translates to a CPM of $150 to $400 if you calculate it out, but the audience quality may justify the premium if those 2,000 listeners are exactly who you need to reach.
Total spend minimum: Podcast advertising rarely works at under $5,000 per quarter for a B2B campaign. Below that threshold, you do not have enough impressions to see meaningful brand recall or conversion lift. Budget realistically or do not start.
Vague targeting produces vague results. Before talking to any show or network, document exactly who you are trying to reach: job title, company size, industry, seniority level, and what problem they have that your product or service solves.
This audience definition drives every downstream decision: which shows to buy, what message to run, and what success looks like. A B2B SaaS company targeting VP-level procurement leaders has different show options than a company targeting developers or founders.
There are three ways to find podcast inventory that matches your audience.
Direct outreach: Search Apple Podcasts, Spotify, or directories like Listen Notes and Podchaser for shows in your category. Pull their download numbers from their media kit (most shows targeting advertisers will provide this), cross-reference their audience demographic data, and reach out to the host or a listed advertising contact directly.
Podcast networks: Networks like Wondery, iHeart, Spotify Audience Network, and smaller B2B-focused networks aggregate multiple shows and sell them as a package or individually. Networks simplify buying but often add a markup to CPM.
Podcast ad marketplaces: Platforms like Podcorn, AdvertiseCast, and Spotify's self-serve ad manager let you search shows, see estimated rates, and book campaigns without direct negotiation. Good for mid-market budgets.
For B2B campaigns, direct outreach to niche shows is almost always worth the extra effort. The shows that reach a specific professional audience are rarely the ones with media kits and dedicated sales teams, so you have to find them manually.
Download numbers alone are not enough due diligence. Before committing budget:
Once you have selected a show, negotiate placement, length, rate, and timing. Standard variables to lock in:
For host-read ads, you do not write a full script. You write a creative brief: the key message, the offer, the call to action, and any claims you want included or excluded. Give the host room to deliver it naturally in their voice. A rigid, over-scripted host-read sounds like a scripted read, which kills the authenticity.
Podcast attribution is imperfect, but it is not impossible. Common approaches:
Promo codes: Give the show a unique discount code or offer tied to the campaign. Redemptions are directly attributable to the podcast.
Vanity URLs: Create a URL like yourbrand.com/podcast that redirects to your landing page. Any traffic from that URL came from your podcast ad mention.
UTM parameters: If the host can include a specific URL in show notes, add UTM parameters for source, medium, and campaign tracking in Google Analytics.
Pixel-based attribution: Services like Chartable, Podsights (now part of Spotify), and ArtsAI offer podcast-to-web attribution by matching listener IP addresses to website visitors. Not perfect, but useful for large-scale campaigns.
Layer at least two of these methods before you run a single dollar.
The standard measurement window for podcast campaigns is four to six weeks post-air, since downloads and word-of-mouth from an episode continue to trickle in long after publish date.
Metrics to track:
After the first campaign, decide whether to renew based on cost-per-acquisition versus your channel benchmarks, not on vague brand awareness claims.
Podcast advertising works well when:
It works poorly when:
If you are a B2B company thinking about using audio as a channel, running your own show is often more cost-effective than buying ads on others. See our guide to podcast production services to understand what it costs to produce a show you own versus renting attention from someone else's audience.
Podsicle Media works with B2B companies on both sides of the equation: producing their own shows and advising on advertising strategy. If you want help mapping out an approach that fits your budget and audience, let us talk.
Contact Podsicle Media and tell us about your campaign goals.
