Podcast cross-promotion: how to find partners and swap plugs

Podcast cross-promotion is a trade: you read a short mention of another show inside your episode, they do the same for you, and both audiences get introduced to a show they don't already listen to. It's cheap, fast to set up, and doesn't require anyone to record together. The catch is that most cross-promos underperform because the partner is wrong, the spot is vague, or nobody tracks whether it worked.

This guide covers how to run one properly: finding partner shows worth the trade, writing a spot that gets someone to actually tap play, tracking the result, and keeping the arrangement fair over time.

What counts as podcast cross-promotion (and what doesn't)

Cross-promotion is an in-episode trade of attention. You insert a mention, teaser, or short ad-style read for another show into your existing episode, usually near the top as a "before we get started" bit or in the outro. They do the same for you in one of their episodes. No new recording happens.

That's different from a guesting and cross-promotion arrangement where hosts appear as guests on each other's shows. A guest swap takes real production time on both sides and works best when the two hosts have compatible interview styles. Cross-promotion is lighter: you're trading airtime, not appearances. For a shorter definition of the term itself, see what a podcast cross-promotion actually is.

Word of mouth is still how most listeners land on a new show in the first place, roughly two-thirds of them according to Buzzsprout's guide to promoting a podcast. Cross-promotion doesn't replace that, it manufactures a version of it on purpose instead of waiting for a listener to mention your show to a friend.

The lighter weight is the appeal. You can run a cross-promo with a show you've never talked to in depth, as long as the audience fit is real and both hosts agree on the terms up front.

Find partner shows that share your audience, not your slot

The right partner covers different ground than you but talks to the same kind of listener. If you host a show about running a small law practice, a partner about small business bookkeeping fits. A partner about running a different kind of law practice competes with you for the same weekly listen, and neither of you gains much from the trade.

A few ways to find candidates:

• Look at what your own listeners mention in reviews, DMs, or a listener survey. If several people bring up another show unprompted, that's a signal of real audience overlap.
• Check who your recent guests have also appeared with. Guests who cross shows tend to sit in adjacent audience lanes.
• Search your topic area in your podcast app and note shows publishing on a different release day or format (interview vs. solo) than you. Different formats reduce the sense that you're competing for the same weekly slot.

Avoid partners who are much bigger or much smaller than you by a wide margin. A show with ten times your audience has little incentive to trade evenly, and a show a tenth your size can't move meaningful volume back. Look for rough parity, or be upfront that an uneven trade means an uneven ask (for example, two mentions from the smaller show for one from the larger).

What a strong cross-promotion ask sounds like

The ask itself should be short and specific. Skip the general "let's cross-promote sometime" message. Instead, name the trade you want:

"We'd like to trade a 45-second mention. We'd plug your show in our next episode's intro, pointing listeners to your [episode name] because it lines up with what we cover. Could you do the same for us, any episode that fits, in the next two to three weeks?"

That message does three things a vague one doesn't: it states the format (45 seconds, intro), it names a specific episode instead of "your show" generically, and it gives a loose deadline so the trade doesn't stall indefinitely. Hosts are more likely to say yes to something concrete they can slot into an existing episode than to an open-ended favor.

If the other host says yes, confirm which episode each mention will run in and roughly when it publishes. That matters for tracking, covered below. Loop this into your broader plan for podcast marketing strategies rather than treating each swap as a one-off, since a handful of well-matched partners run on a rotation is worth more than a single trade.

Write a spot that actually gets clicks

A cross-promo spot fails when it's just a name-drop. "Check out the Bookkeeping Show" gives a listener no reason to act. A spot that works answers one question: why should someone listening to this show, right now, care about that one.

Structure that tends to work:

• One line on what the other show covers, in terms your listener already cares about (not the show's own tagline).
• One line pointing to a specific episode, with enough detail that it sounds like a recommendation rather than an ad.
• One clear instruction: search the show name, or follow a link if you're publishing show notes.

For example: "If you've ever gotten a client invoice wrong at tax time, the Bookkeeping Show just did an episode on how solo practices actually track billable hours without spreadsheets falling apart. Worth a listen, search Bookkeeping Show wherever you get podcasts."

That's specific, sounds like a real recommendation, and gives a clear next action. Compare it to a generic "our friends at the Bookkeeping Show make a great podcast, go check them out," which gives the listener no reason to interrupt what they're doing. If you're short on which episode to point to, pull from a partner's back catalog using the kind of angle that tends to travel well, similar to how you'd pick from a list of podcast topics that work when planning your own show.

Track whether the swap moved subscribers

This is where most cross-promotion arrangements fall apart as a growth tactic, not because the swap didn't work, but because nobody set up a way to tell. A general uptick in downloads the week after a cross-promo airs could be the swap, could be a good episode topic, could be nothing.

Set up attribution before the spot airs, not after:

• Use a dedicated link or landing page for each partner ("search [show], or go to [yourdomain]/[partner-name]") so you can see traffic specific to that trade.
• Ask new subscribers where they heard about you, either in a short onboarding email or a pinned show note question, and tally mentions of the partner show by name.
• If you're running prefix analytics on your hosting, watch for a spike in first-time listens in the days right after the partner's episode published, and compare it to your normal baseline for a new episode release. Podder's audience data can show that kind of referral-adjacent spike alongside your regular download patterns, which is useful for judging whether a specific swap is worth repeating.

If a swap produces a real, attributable bump, repeat it with that partner on a schedule (quarterly is common). If it produces nothing measurable after two or three attempts, drop it and look for a better-matched partner instead of assuming cross-promotion doesn't work for your show.

Reciprocity norms: keep the trade fair

Cross-promotion runs on trust between two hosts, and it breaks down fast when one side feels shorted. A few norms keep it fair:

• Match length and placement roughly. If they gave you an intro spot, give them one back, not a rushed mention buried after the outro music starts.
• Match timing. If you promised a mention "within the month" and it slips two months, say so. Silent delay reads as backing out.

Keep the exchange one-to-one unless you've explicitly agreed otherwise. Don't ask for a second favor mid-swap without offering something back.

If a partnership works well over a few swaps, it's worth formalizing loosely, an agreed cadence (every new season, every quarter) rather than renegotiating from scratch each time. That's also a natural way to build a small bench of reliable partners, which does more for steady growth than one big swap with a much larger show that never gets extended past round one, and it complements other channel work covered in how to grow a podcast audience.

Podnews's rundown of cross-promo tactics makes a related point worth keeping in mind as a partner bench grows: these trades don't cost either side any money, only airtime, which is exactly why it's easy to overdo them and end up with a show that spends more time plugging other people's episodes than delivering your own.

How you know it worked

A cross-promotion trade worked if you can point to a specific, attributable signal, not a vibe. Look for: a measurable bump in first-time listens or subscribes in the days after the partner's episode aired, direct mentions of the partner show when you ask new listeners how they found you, or click-through on a dedicated link or landing page tied to that partner. If none of those move, the swap probably reached the wrong audience segment, even if both shows technically have "similar" listeners on paper.

It also worked if the partner wants to do it again without you asking twice. A partner who proposes the next swap themselves is a stronger signal than any single download number, because it means the trade felt worth their airtime too.

Want a practical review of your cross-promotion partners and whether the trades are actually moving your numbers? Book a free podcast growth strategy call.