This is the working guide to LinkedIn lead gen forms: what they are, the specs, how to set one up, and what they convert at and cost. The numbers come from Kiin Labs' LinkedIn Lead Gen Forms Benchmarks 2026 (4,010 campaigns, 489 advertiser accounts, 86,051 leads, 8 September 2025 to 7 September 2026, every comparison paired within account), and the setup from running the format on 200+ B2B accounts. Every figure is split by what the form asks for, a content offer (guide, report, webinar, template) or a demo request (demo, call, trial, audit), because a blended cost per lead is a number nobody can use.
What a LinkedIn lead gen form is and how it works
A lead gen form is a native form that sits on top of a LinkedIn ad. When a member taps the ad's call to action, the form opens inside LinkedIn (no landing page, no new tab) with fields already filled in from their profile: name, email address, job title, company, and so on. They can edit the values, answer up to three questions you added, tick a consent box if you require one, and submit. Then they see a thank-you message with a link to the asset, or a Calendly booking step if the offer is a meeting.
Three things make it different from a landing page form. The friction is one tap, so completion rates are far higher than a web form. The data comes from the profile, so it is real (work email is the field members lie about most, and even that is 71% required in practice). And the lead lives in LinkedIn: it is stored in Campaign Manager for 90 days, downloaded as a CSV, or pushed to a CRM through an integration. LinkedIn counts a form open when the form appears and a lead when it is submitted; the ratio between them, the completion rate, is the number this whole guide turns on.
Forms run only on the lead generation objective, and can be attached to single image, video, carousel, document, thought leader, event and article ads in the feed, and message and conversation ads in the inbox. Which of those carries the form matters more than anything on the form itself, as the format section shows. The wider question of whether the format is worth running at all is answered in Do LinkedIn lead gen forms still work? (yes, and the data below is why).
Specs: fields, limits, and what LinkedIn pre-fills
Profile fields LinkedIn can pre-fill
| Group | Fields | Note |
|---|---|---|
| Contact | First name · Last name · Email address · Work email · Phone number · Work phone · LinkedIn profile URL · City · State/Province · Country/Region · Postal code | "Email address" pre-fills the login email, often personal. "Work email" asks the member to type it; 71% of forms require it. Phone number is typed, never pre-filled from the profile. |
| Work | Job title · Function · Seniority | Job title is the field to keep (67% of forms ask). Function and seniority are LinkedIn's inferred values. |
| Company | Company name · Company size · Industry | Company size is a useful qualifier (10% of forms use it). |
| Education | Degree · Field of study · University · Start date · Graduation date | Recruitment and higher-ed forms only. |
| Demographic | Gender | Rarely appropriate for B2B. |
The specs for the ads the form attaches to (image sizes, video limits, document page counts) are on the ad specs page.
How to set up a LinkedIn lead gen form, step by step
- Create the campaign on the lead generation objective. In Campaign Manager, create an ad set (campaign) and choose Lead generation. Only this objective can carry a form.
- Pick the format that fits the offer. Document ad for a content offer, message or conversation ad for a demo request. Avoid a single image with a demo form.
- Build the form under Assets, Lead gen forms. Name it internally, add the offer headline (60 characters), detail (160), privacy policy URL and call to action (20).
- Choose the fields. First name, last name, work email, job title. Add one custom question if sales needs a qualifier. No phone number unless it will be dialled.
- Add hidden fields and the thank-you step. Pass campaign name and UTM values as hidden fields; write a 300-character thank-you with a direct link to the asset, or a Calendly step for a meeting.
- Connect the CRM before launch. Account settings, Integrations: HubSpot, Salesforce, Pipedrive, Marketo, Zoho, Dynamics, or a Zapier/Make webhook. LinkedIn keeps leads for 90 days only.
- Attach the form to the ad and launch. In the ad, select the form, preview it on mobile, publish. Check the first leads land in the CRM within the hour.
- Judge the campaign on completion rate. Report submissions ÷ form opens, cost per form open and cost per lead, split by content and demo. Refresh creative when completion falls, around week four.
Two details that catch people. The form is a reusable asset: build it once under Assets → Lead gen forms and attach it to as many ads as you like, and edit it in one place. And a form cannot be edited once it has leads without LinkedIn creating a new version, so get the fields right before launch. Every screen in this flow is walked through in the Campaign Manager tutorial.
LinkedIn lead gen form conversion rate benchmarks (2026)
Conversion rate on a lead gen form means two things, and both matter. Form open rate is opens ÷ impressions (the click). Completion rate is submissions ÷ opens (the finish). Completion explains half of the difference in cost per lead between accounts; open rate explains a fifth. Median account, accounts with 100+ form opens:
| Form completion rate | Median | Good (top 25%) | Exceptional (top 10%) | Accounts |
|---|---|---|---|---|
| Feed, content offer | 10.8% | 18.7% | 31.6% | 173 |
| Feed, demo request | 2.2% | 4.2% | 9.5% | 87 |
| Message and conversation ads (any offer) | 40.7% | 51.8% | 65.5% | 52 |
| Feed, all offers | 7.6% | 15.7% | 27.6% | 232 |
| Form open rate (opens ÷ impressions) | Feed, all | Content | Demo | Inbox (per send) |
|---|---|---|---|---|
| Median account | 0.33% | 0.31% | 0.41% | 0.43% |
| Leads per 1,000 impressions (or sends) | 0.22 | 0.28 | 0.08 | 1.75 |
Feed open rate runs 0.24% at the 25th percentile and 0.45% at the 75th (376 accounts). By format: single image 0.39%, video 0.45%, thought leader ad 0.39%, document 0.14%. Open rates barely vary; completion runs from 1.2% to 20%, which is why the format and the ask decide the cost.
| Form opens per lead | Content | Demo |
|---|---|---|
| Document ad | 5 | — |
| Thought leader ad | 9 | 60 |
| Single image | 12 | 48 |
| Video | 22 | 80 |
LinkedIn lead gen form cost per lead benchmarks (2026)
| Cost per lead, median account | Top 10% | Top 25% (good) | Median | Bottom 25% | Bottom 10% | Accounts |
|---|---|---|---|---|---|---|
| Content offer | $28 | $67 | $164 | $365 | $856 | 217 |
| Demo request | $67 | $131 | $343 | $741 | $1,226 | 115 |
| All forms (do not quote) | $38 | $80 | $185 | $447 | $892 | 341 |
At every percentile a demo request costs roughly twice a content offer, and inside the 50 accounts running both, switching from content to demo raises cost per lead by 51%. The offer type sets the price and the flavour of content does not: template or tool $110, ebook or guide $135, webinar $135, report or benchmark $199, meeting or call $263, free trial $283, audit $295, demo $530.
By ad format carrying the form
| Format | Content CPL (accounts) | Demo CPL (accounts) | Completion, content / demo | Paired vs single image |
|---|---|---|---|---|
| Message ad | $56 (22) | $175 (23) | 37% / 32% | demo −40% |
| Conversation ad | $35 (9) | $365 (60) | 43% / 45% | demo −49% |
| Document ad | $180 (96) | withheld | 20.3% / — | content −22%, completion +174% |
| Thought leader ad | $94 (16) | $1,025 (8) | 11.4% / 1.7% | directional |
| Single image | $189 (141) | $600 (46) | 8.3% / 2.1% | baseline |
| Video | $119 (10) | $283 (9) | 4.6% / 1.2% | +60% (16 accounts) |
| Carousel | withheld | withheld | — | — |
By region, industry and monthly spend
| Region targeted | Content | Demo |
|---|---|---|
| UK | $68 (15) | $299 (7) |
| Benelux | $106 (10) | — |
| Nordics | $126 (12) | — |
| DACH | $130 (39) | — |
| Europe, multi-country | $144 (32) | — |
| US | $210 (59) | $376 (44) |
| US and Canada | $311 (37) | $559 (26) |
Europe is roughly half the US on content; but paired inside accounts that target both, the US is only 12% dearer and not significantly so. The gap describes who advertises where, not the auction. By industry targeted, content leads run from $20 (higher education) and $51 (accounting) through $81 (software), $85 (financial services) and $102 (technology) to $262 (manufacturing) and $304 (retail); the full 100-row table is at cost per lead by industry. By monthly spend, accounts under $1,000 a month pay $98 a content lead, the cheapest band, and accounts over $25,000 pay $401: mix, not scale.
Which ad format should carry the form
The form is the same everywhere; what changes is how many people open it and how many finish. Feed formats get opens cheaply and lose them on completion; inbox formats get fewer opens and convert four in ten. The rules that fall out of the table above:
- Content offer → document ad. Fewer opens (0.14%) but 20% completion and five opens per lead; 22% cheaper per lead than a single image in the same account, and the document itself gives the reader the first pages before the gate. Specs: PDF up to 100 MB, under 10 pages, gate after page two or three.
- Demo request → message ad or conversation ad. $175 and $365 per demo lead against $600 for a single image; 31 to 45% completion against 2%. The message ad is one message, one form; the conversation ad adds branching and up to five CTAs and suits an incentive ("book a 20-minute call, we'll send a $100 gift card") which is where our incentive ads playbook lives.
- Single image → content only, and only when the document does not fit. The most common setup in the panel (141 accounts on content, 46 on demo) and the worst on demo.
- Video and thought leader ads → not for the form. Video with a form is 60% dearer than single image; thought leader ads with a demo form cost $1,025 a lead. Use both to build the audience, then run the form to that audience in a document or message ad.
The lead generation objective itself is not free: the same account pays 40% higher CPM on lead generation than on website visits (154 accounts) and the same CPM as engagement. The form has to earn that premium on completion.
Lead gen form vs landing page
Paired within the same account, the lead gen form ran 55% lower cost per lead than a landing page, and 82% lower on content offers (20 and 15 accounts). A landing page lead on a website conversion campaign costs $721 at the median. The form wins on cost every time we have measured it, for the obvious reason: one tap against a page load, a scroll and eight typed fields.
The landing page still earns its place in three situations: the offer is a meeting and the prospect needs to see pricing, a product video or a calendar before committing; you want the visitor in a website retargeting audience (form fills build a form-engagement audience instead, which is smaller); and you need progressive profiling or a multi-step qualifier the form's three questions cannot do. Our default is the form for content, the inbox for demos, and the landing page for the website visits campaign that runs alongside both. What a form lead does after submitting is a different question, covered in how to follow up LinkedIn ad leads.
Inside the form: fields, phone numbers and questions
Field count does almost nothing. One field does everything.
| Fields on the form | 3 or fewer | 4 | 5 | 6 | 7 | 8+ |
|---|---|---|---|---|---|---|
| Completion, all | 9.0% | 9.9% | 6.7% | 6.2% | 7.6% | 4.0% |
| Completion, content | 15.1% | 15.3% | 8.8% | 8.2% | 12.0% | 13.0% |
| Completion, demo | 2.7% | 1.5% | 3.4% | 1.8% | 1.3% | 2.0% |
Short (five or fewer) vs long (seven or more), paired: +16% completion, not significant. Custom questions: no effect. Work email vs any email: no effect. What does move it:
| Field, paired within account | Completion | Cost per lead | Accounts |
|---|---|---|---|
| Phone number | −66% [−83%, −46%] | +135% [+51%, +331%] | 27 / 23 |
| Work email required | −10% ns | +65% ns | 19 / 15 |
| Consent checkbox | +73% ns | −31% ns | 13 / 10 |
| Gift card or incentive mentioned | −30% ns | −23% ns | 10 / 8 |
The median form in the panel has six fields, requires a work email (71%), asks for job title (67%) and phone number (35%), has no custom question (81%) and no consent box (82%), and 97% send the member somewhere from the thank-you page, 6% to a calendar. The form's own copy (headline length, offer-led vs benefit-led headline, description length) made no measurable difference at 44 to 69 accounts. The ad's first line did: ads that open with a question got 64% fewer leads per impression than ads that state the offer.
So: first name, last name, work email, job title, plus one qualifying question if sales will use it. Phone number only when a person will dial it, and price in the loss. A consent checkbox costs nothing measurable and gives you a documented lawful basis in the EU and UK.
Audiences: cold, lists, retargeting, and who submits
Uploaded lists are 42% of all lead gen form spend and the dearest audience. Same account, content offers: a list pays 19% more per impression and gets 24% fewer leads per impression, with the same open rate and the same completion, for a net +31% cost per lead (30 accounts). Retargeting is a tie with cold: −9%, cheaper in 34 of 65 accounts, not significant. Lists also fatigue a month faster than cold (cost per lead index 146 by month three against 130) and lists under 10,000 members are reached 130 to 150% over inside a single campaign.
Audience size does not move cost per lead or completion (correlation −0.03 across accounts, −0.13 within). The old 50,000-member minimum is dead; size the budget to the audience instead.
Who submits skews senior. Pooled across 263 campaigns: director and above are 26% of impressions and 40% of leads; entry-level members are 33% of impressions and 19% of leads; and inside the same campaign a C-suite lead costs about a third less than the campaign average. Six percent of leads on filtered campaigns come from outside the seniority filter. Content forms pull enterprise (10,000+ employee companies are 28% of impressions and 44% of leads). The practical rule: target by job title rather than function plus seniority, use fewer titles rather than more, and filter up without fear. How to build the list in the first place is in the account list guide.
Budget and time to first lead
| Daily budget | Content: first lead | Demo: first lead | Note |
|---|---|---|---|
| $10 to $25 | Day 3 (a lead by day 30 in 77% of campaigns) | Day 12 (51%; 36% never get one) | Fine for content tests |
| $25 to $50 | Kiin's floor for content | Not enough for demo | |
| $100 a day | Kiin's floor for demo | Even at $100 to $250 a day only 46% of demo campaign-months get a lead a week |
26% of all campaign-months with $200 or more of spend produce zero leads, and a single image with a demo form is zero-lead 66% of the time under $10 a day and still 19% at $100 or more. Only 4% of campaigns were paused before their median time to first lead; the rest waited and still got nothing, so patience is not the missing ingredient. Size the budget at under $2 a day per 1,000 members and widen the audience before raising the daily budget. Cost per lead rises 37% by month three while CPM falls 9%, so refresh creative on completion rate around week four, not on CPM. Sunday is the cheapest day; December CPM is up 16% and cost per lead flat, so both stay on. How this fits a whole account is in how much to budget for LinkedIn ads.
Integrations: HubSpot, Salesforce, Google Sheets, Slack
LinkedIn keeps a lead for 90 days. Everything after that depends on where you sent it, so connect the CRM before launch.
| Destination | How | What to check |
|---|---|---|
| HubSpot | Native. Campaign Manager → Account settings → Integrations → HubSpot (or HubSpot Marketing → Ads → Connect account). Map fields once; leads arrive as contacts with the LinkedIn form and campaign as source. | The connecting HubSpot user needs marketing permissions; hidden fields map to custom properties; new forms need mapping. |
| Salesforce | Native, via the LinkedIn Lead Gen Forms Salesforce connector in Business Manager. Leads land as Lead records with campaign member attribution. | Field mapping is per form; duplicate rules in Salesforce decide whether a second submission updates or creates. |
| Pipedrive, Marketo, Zoho, Dynamics, Eloqua, Pardot | Native integrations under the same menu. | Pardot and Marketo sync run on a schedule, not real time. |
| Google Sheets, Slack, Gmail, Outlook, anything else | Zapier or Make (trigger: new lead in LinkedIn Lead Gen Forms) or the Lead Sync webhook. | Zapier's polling can lag by up to 15 minutes; use it for alerts, not as the system of record. |
| CSV | Assets → Lead gen forms → Download leads, per form or per account. | Only leads under 90 days old are in the file. |
Whichever route, reconcile weekly for the first month: Campaign Manager counts a lead at submission even when the sync fails, so the platform can report leads you never received. We wrote that up in LinkedIn is reporting leads you never got. And route by offer: demo leads to a person within the hour, content leads into a nurture sequence, because only around 3% of content leads are in-market when they download.
Six LinkedIn lead gen form recipes that work
Examples of the form, the format it sits in and the copy, as we build them. Copy is literal on purpose: the form's wording does not move completion in the data, the ask and the format do.
| Recipe | Format | Headline · detail · CTA | Fields | Expect |
|---|---|---|---|---|
| Benchmark report | Document ad, first 3 pages free, gate on page 4 | "LinkedIn Ads Benchmarks 2026" · "CPM, CTR and CPL for 944 accounts, by format and industry" · "Download" | Name, work email, job title | 15 to 20% completion, $67 to $199 a lead |
| Guide or template | Document ad or single image | "The LinkedIn ad copy template we use on 200 accounts" · "12 first lines, tested" · "Get the template" | Name, work email | $110 to $135 a lead |
| Webinar | Event ad on lead generation, or single image | "Live: what 489 advertisers pay per lead" · "45 minutes, 14 October, recording included" · "Register" | Name, work email, job title, company size | $135 a lead; 40 to 50% attend |
| Demo, incentive | Conversation ad | "Book 20 minutes, get a $100 gift card" · "For heads of marketing at B2B SaaS companies over 50 people" · "Book a call" | Name, work email, job title, one qualifier | 40%+ completion, $175 to $365 a lead |
| Demo, plain | Message ad with Book an Appointment | "See your account against 1,000 others" · "30 minutes, your numbers, no deck" · "Book" | Name, work email, then Calendly | 30% completion, $175 a lead, $221 a booked meeting |
| Audit or assessment | Single image or document to a retargeting audience | "Free LinkedIn Ads audit" · "We score 8 layers and send one page" · "Request audit" | Name, work email, company name, monthly spend (multiple choice) | $295 a lead; run to warm audiences only |
Best practices: the 13 rules we run lead gen forms by
- Never a demo ask in the feed with a form. Demo asks go in a message ad or conversation ad, or behind a content offer first.
- Judge the campaign on completion rate. It is half the price; click rate is a fifth.
- Documents for content, never for demo.
- Phone number only when sales will dial it. Expect to lose two thirds of completions.
- $25 to $50 a day for content, $100 a day for demo.
- Refresh on completion rate, around week four. CPM will not warn you.
- Cold before lists. Refresh any list under 10,000 monthly; retargeting is a tie, not a discount.
- Job titles over function plus seniority, and fewer titles rather than more. The senior leads are the cheap ones.
- Do not open the ad with a question, and do not name the audience by title. Say what the offer is in the first line.
- Use the form, not the landing page, unless the offer is a meeting.
- Size the budget to the audience: under $2 a day per 1,000 members; widen before you raise.
- Weekends and December stay on.
- Report completion, cost per form open and cost per lead, split by what the form asks for. Never a blended CPL.
"They give you junk or junior leads": 40% of leads are director and above. "Landing pages give better leads": on cost the form wins by 55%; quality is untested and next in the report. "Document ads are the cheapest lead": cheapest feed content lead, but message ads are cheaper still and documents are not a demo format. "Never run demo forms cold": cold demo is $240 against $496 on a list. "You need 50,000 people in the audience": audience size does not move cost per lead. "Fewer fields, more leads": field count barely matters, the phone field does. "You can't do lead gen under £3k a month": accounts under $1,000 a month pay the cheapest content leads in the table. The full list with verdicts is in the report.
Everything above is a cost finding. Whether the leads become pipeline needs form submissions joined to CRM outcomes, which is the next chapter of the report and the reason we ask clients for CRM access on day one.