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What Are the LinkedIn Ad Formats, and Which Should B2B Use?

Phil IlicBy Phil Ilic, Co-founder & CEO
📅 Published Feb 2026 · Updated Sep 2026
⏱ 8 min read
Quick Answer
LinkedIn has four families of ad format. Sponsored Content in the feed: single image, video, carousel, document, event, article/newsletter, thought leader and connected TV. Sponsored Messaging in the inbox: conversation ads and message ads. Dynamic Ads in the right rail: follower and spotlight. And text ads. Lead gen forms attach to several of these rather than being a format. For B2B SaaS the ones that matter are thought leader ads for demand generation, conversation ads and single image ads with lead gen forms for demand capture, and document ads for gated content — the rest are situational.

Every LinkedIn ad format, explained

LinkedIn groups its ad formats into four families by where the ad appears. Lead gen forms are not a format — they are an attachment you can add to several of these.

Sponsored Content — ads in the feed

  • Single image ads. One image, headline and copy in the feed. The workhorse: the cheapest to produce, the easiest to test, and the format most demand-capture campaigns run to a lead gen form or a landing page.
  • Video ads. Native video in the feed, sound-off by default. Best for showing a product or a person; measured on view rate and completion, not clicks.
  • Carousel ads. Two to ten swipeable cards. Works for step-by-step stories and multi-product showcases; underused in B2B because it is fiddly to build.
  • Document ads. A PDF that previews in the feed and can be gated behind a lead gen form after the first pages. The strongest format for guides, reports and playbooks.
  • Event ads. Promote a LinkedIn Event to drive registrations, with the event details rendered natively.
  • Article and newsletter ads. Sponsor a LinkedIn article or newsletter edition to grow subscribers and readership.
  • Thought leader ads. Sponsor a post from a person's profile — a founder, an executive, an employee — rather than the company page. Appears as a normal post with "Promoted" beneath. The highest-engagement format on the platform and the core of B2B demand generation.
  • Connected TV ads. Video delivered to streaming TV in the US, targeted with LinkedIn's professional data. Awareness only; no click.

Sponsored Messaging — ads in the inbox

  • Conversation ads. A message from a named sender with multiple call-to-action buttons that branch into a choose-your-own-path flow. Kiin's default demand-capture format for sales-led B2B — median cost per lead $200 across 242 accounts, and 33% cheaper per lead than single-image lead gen forms in the same account (Kiin Labs 2026); measured on opens and open rate.
  • Message ads. A single message with one call to action — the format formerly called Sponsored InMail. Not available to audiences in the EU under GDPR; inside the same account it is a tie with conversation ads on cost per lead (message ads open 20% more, conversation ads complete the form 21% more), so it is a choice by offer rather than a legacy format. The two are compared in conversation ads vs sponsored InMail.

Dynamic Ads — personalised units in the right rail

  • Follower ads. Pull the viewer's own name and photo into a small unit inviting them to follow your page.
  • Spotlight ads. The same personalised unit pointing to a landing page or an offer.

Text Ads

  • Text ads. Small headline-and-description units at the top or right of the desktop feed, priced per click. Cheap, low-attention, and the only format that has looked the same for a decade.

Not a format: lead gen forms

A lead gen form attaches to single image, video, carousel, document, conversation and message ads. It pre-fills from the member's profile, which is why submission friction is near zero — and why form opens are reported far more prominently than submissions. Only submissions are leads.

Which format should B2B use? It depends on the job

Most people asking "what's the best LinkedIn ad format?" are looking for one answer. The reality is that different formats do different jobs, and a proper B2B SaaS campaign uses multiple formats simultaneously — each one optimised for a specific stage of the funnel.

The mistake is choosing one format and running it in isolation. Conversation ads without demand gen are expensive. TL ads without demand capture generate awareness but no meetings. The formats work together. Here's what each one does best.

Every Format, Ranked

1. Thought Leader Ads (TL Ads)
Demand Gen
Paid ads promoted from a personal profile, not a company page. They look like organic posts with the person's face, name, and existing engagement (likes/comments). TL ads get 3–5× the engagement of brand-page sponsored content because people engage with people, not logos. This is your primary format for building awareness, trust, and recognition with your target account list.
Verdict: Your #1 format. Should take ~60% of total ad budget. Run 5+ simultaneously at 5×5 penetration.
2. Conversation Ads
Demand Capture
Direct messages sent to prospects' LinkedIn inboxes with interactive buttons. When paired with an incentive (typically a $100 Amazon gift card for booking a demo), conversation ads are the most effective demand capture format on LinkedIn. They produce SQLs at $59–$388 depending on audience warmth — retargeting audiences on the lower end, cold on the higher end.
Verdict: Your #1 conversion format. Should take ~30% of budget. Pair with incentive for best results.
3. Lead Gen Forms
Demand Capture
Pre-filled forms that open directly on LinkedIn — no landing page required. With the Calendly integration, prospects can book a meeting slot directly from the form. Friction is minimal: two taps and they've booked a demo. Best used alongside conversation ads as an alternative conversion path for people who prefer self-service booking over inbox messages.
Verdict: Strong supporting conversion format. ~10% of budget. Especially effective with Calendly.
4. Single Image Ads (Company Page)
Demand Gen
Traditional sponsored content from your company page with a single image and copy. These are the default LinkedIn ad format and the one most companies run. They work, but engagement rates are significantly lower than TL ads because they come from a brand page, not a person. Use for supplementary brand awareness or when you need to promote content that doesn't fit a personal profile (product announcements, event promotions).
Verdict: Supplementary. Use when TL ads aren't appropriate. Lower engagement than personal profile ads.
5. Video Ads
Demand Gen
Video content promoted as sponsored content. Can work well for product demos, customer testimonials, and founder-led content. But most LinkedIn users scroll with sound off, so captions are essential. Video requires more production effort than text + image posts, which matters when you need five or more ads running simultaneously. The engagement rate per impression is often lower than a strong text-based TL ad.
Verdict: Good for product demos and testimonials. Higher production cost. Add once your text TL ads are running.
6. Carousel Ads
Demand Gen
Multi-card swipeable format for storytelling, frameworks, and step-by-step guides. Only available as company-page sponsored content — not as TL ads. This means you lose the personal connection advantage. Carousels can drive engagement when the content genuinely benefits from a multi-card layout (process breakdowns, before/after sequences, data comparisons), but they shouldn't be your primary format.
Verdict: Supplementary. Company page only. Use for specific content types that need multi-card format.
💡 The full-funnel format stack

The proven combination: 5+ TL ads running simultaneously for demand gen (60% of budget), conversation ads with incentive for demand capture (30%), and lead gen forms with Calendly for frictionless booking (10%). All targeting the same account list. This is the stack that produces SQLs at $59–$165 on retargeting audiences.

Why Most Companies Get This Wrong

The most common mistake is running only one format — usually single image ads from a company page asking cold audiences to "Learn More" or "Request a Demo." This produces mediocre engagement, expensive clicks, and very few conversions.

The second most common mistake is running conversation ads without demand generation. Yes, conversation ads work on cold audiences — but SQLs cost $154–$388 from cold versus $59–$165 from retargeting. Demand gen makes demand capture cheaper. The TL ads create the awareness that makes the conversation ad convert.

⚠️ Don't optimise the wrong metric

Each format has a different success metric. TL ads are measured by penetration rate and frequency, not clicks. Conversation ads are measured by SQL cost and form-to-meeting rate. Lead gen forms are measured by booking rate. Judging TL ads by their CPC or conversation ads by their CTR leads to wrong conclusions about what's working.

🔀
Full Strategy
Full-Funnel LinkedIn Ads Strategy for B2B SaaS: How all the formats work together in a complete system →

Ranked by effectiveness for B2B lead generation — the 2026 numbers

What are the best ad formats on LinkedIn for B2B lead generation, ranked by effectiveness?

Ranked by cost per lead, paired within the same accounts, from Kiin Labs' Lead Gen Forms Benchmarks 2026 (489 advertisers, 86,051 leads):

  1. Message ads with a lead gen form — the cheapest lead on LinkedIn: $56 median for a content offer, $175 for a demo request, 41% form completion.
  2. Conversation ads with a form — a tie with message ads inside the same account; 40% completion on demo forms, against 2% for the same ask in the feed.
  3. Document ads with a form — 22% lower cost per lead than single image on content offers, with 174% higher form completion. The best feed format for a download.
  4. Single image with a form — the most common setup: $164 median for content, but $600 for a demo at 2% completion. Fine for a guide; the wrong place to ask for a meeting.
  5. Video with a form — 60% higher cost per lead than single image in the same account. Video buys views, not form fills.
  6. Thought leader ads — not a lead generation format at all. Use them for engagement and warming; then capture with 1 to 4.

If you send people to a landing page instead of a form, sponsored content on the website visits objective is the cheapest click ($11.75 median) — but the form beats the landing page by 55% on cost per lead in the same account, 82% on content offers.

What are the most effective LinkedIn ad formats?

It depends on the job. For clicks to a site: single image sponsored content on the website visits objective, $11.75 per landing page click. For attention and warming a target list: thought leader ads, 4.46% median engagement rate, 1.9 times a company-page post. For leads: message ads first, document ads second (above). For views: video on the video views objective with automatic bidding. No format is "most effective" across all four jobs, which is why most accounts run three of them.

FAQ

What are the LinkedIn ad formats? +
There are four families. Sponsored Content in the feed: single image, video, carousel, document, event, article and newsletter, thought leader, and connected TV. Sponsored Messaging in the inbox: conversation ads and message ads, the latter unavailable in the EU. Dynamic Ads in the right rail: follower and spotlight. And text ads. Lead gen forms are an attachment to several of these, not a format of their own.
What is the best LinkedIn ad format for B2B SaaS? +
No single best format — it depends on the objective. TL ads for demand gen (3–5× engagement), conversation ads with incentive for demand capture (SQLs at $59–$388), lead gen forms with Calendly for frictionless booking. Use all three simultaneously in a full-funnel strategy.
Should I use video ads or single image ads? +
Single image TL ads from personal profiles typically outperform video in engagement. Video works for product demos but requires more production and most users scroll with sound off. Start with text + image TL ads, add video once your content engine is running.
What about LinkedIn carousel ads? +
Carousels are company-page only — not available as TL ads — so they lose the personal connection advantage. Good for specific content types (frameworks, step-by-step guides) but should be supplementary, not primary. TL ads and conversation ads should take the majority of budget.

Keep Reading

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LinkedIn Conversation Ads Benchmarks 2026
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