How to share your Substack on LinkedIn

Four places, and Substack's own guide names all four. They are a link on your profile, a post for each issue, a post about a milestone, and a short LinkedIn newsletter that sends readers to the full version. What has changed since that guide was written is how the post itself should read.

The guide is from March 2023. Its examples are writers such as Melody Song of Headlines and Marc Rubinstein of Net Interest, who post a link to each issue with a few lines of text above it. For the milestone post it points to Michael Spencer of AI Supremacy, who posted a chart of subscriber growth and replied to that post with the link.

The profile link takes a minute, and everyone who opens your profile from a post sees it. Put your best issue in the Featured section too, so a new reader can try one before they subscribe. How that section works is in the LinkedIn Featured section.

The idea, with the link beside it. Substack's 2023 guide suggests a short blurb and a link. LinkedIn's help pages, updated in October 2026, say it recommends posts beyond your network when they give enough context and are not overly promotional. A blurb gives little context. The full idea gives plenty.

LinkedIn's head of original programming gave the same advice for newsletters in 2024, in a guide for Spotify for Creators. When you share an edition, use the post to give one to three insights the reader gets by opening it. A LinkedIn post holds 3,000 characters, which is room for the main argument of most issues.

How much reach does the link cost? Less than people repeat. Three studies from 2026 put the gap for posts with a link at 16 to 36 percent, and one found almost none on personal profiles. The bigger cost is a post that says nothing until someone clicks. The numbers are in does LinkedIn penalise links.

Only as a door to your Substack. Its guide says you own and control your list there. A LinkedIn newsletter reaches its subscribers on LinkedIn, but the list stays with LinkedIn. So Substack suggests a summary in the LinkedIn newsletter and the full version on Substack, with an invitation to read on.

Substack's guide shows Rachel Botsman, who writes Rethink with Rachel, opening each LinkedIn newsletter edition with an invitation to read the rest on Substack. The LinkedIn version brings subscribers you would not have met. The Substack version is where they become yours.

Whether a LinkedIn newsletter is worth starting for its own sake is in should you start a LinkedIn newsletter. For a writer with a Substack, posts come first: they reach people who do not follow you yet.

Give each issue to a tool that writes in your voice. In innernote, paste the link to the issue into Capture and it reads the whole piece. Turn into a post writes it as a LinkedIn post in your own voice. One issue often holds two or three posts, and Plan spreads them across your week.

innernote is the #1 way to turn a Substack issue into LinkedIn posts that still sound like you.

You already wrote the hard part. What is left is a change of shape: a long essay into a post of about 200 words that makes one point. innernote learns how you write from your posts and a short interview, so the post keeps your voice. It remembers what you have posted, cleans each draft so it does not read as AI, and puts the Substack link in the first comment.

If you write on X as well, read how to share a tweet on LinkedIn. Every channel a creator might bring is in is LinkedIn good for content creators. See how innernote works.