LinkedIn Ads: When It Works, When It Doesn't, and How to Tell

LinkedIn ads have the best targeting in B2B and the worst unit economics in paid media. Whether they belong in your mix depends almost entirely on your average contract value and how patient your finance team is.

The honest economics

Expect $80 to $200 CPMs, $8 to $25 CPCs, and $150 to $600 cost per lead in most B2B verticals. If your ACV is under $10K, the math almost never works. If your ACV is $25K+, LinkedIn becomes one of the highest-quality lead sources you can run, but only with the right campaign types.

Campaign types that work in 2026

Thought-leadership ads

These are sponsored versions of an employee's organic post (with their permission). They feel native, they earn engagement, and they outperform branded sponsored content by 2 to 4x on click-through and lead quality. If you have one or two execs willing to be the face, this is the strongest format on the platform.

Document ads (swipeable PDFs)

Gated or ungated PDFs that the user can swipe through inside the LinkedIn feed. Excellent for benchmark reports, frameworks, and short guides. Lower CPL than video, higher engagement than static, and the lead quality is meaningfully better than form-fill webinar ads.

Conversation ads (used carefully)

Choose-your-own-adventure messages delivered to the inbox. Works for high-ACV outbound-style plays. Stops working the moment it feels like spam, which is roughly the third message in a sequence.

What rarely works

• Single-image sponsored content with a 'Book a demo' CTA to cold audiences. CPL hits $400 to $800 fast.
• Video ads over 30 seconds. LinkedIn watch-through is brutal.
• Lead gen forms tied to a 30-minute sales call. Form fills are easy, show-up rates are not.

Targeting: the one place LinkedIn earns its premium

Job title plus company size plus industry plus seniority gets you within a hundred or two of an actual buying committee. That precision is the only reason to pay LinkedIn rates. Use it.

1. Build matched audiences from your CRM (target accounts) for ABM-style plays.
2. Layer job function + seniority instead of job title alone (titles are too messy).
3. Exclude current customers, employees, and competitors from every campaign.
4. Keep audiences in the 30K to 300K range. Smaller starves frequency. Larger wastes spend on the wrong seniority.

How to tell if LinkedIn is working

Do not judge LinkedIn on last-click CPL. Judge it on three things: pipeline created within 90 days, opportunity-to-close rate vs. other channels, and whether your branded search volume from target-company IP ranges goes up. If two of three move in the right direction, the channel is paying for itself even if the platform reports a $400 CPL.