What are the 2026 social media caption and character limits?

Direct Answer

For scheduled business posts in 2026, use these safe limits: Instagram captions 2,200 characters, TikTok captions 2,200, LinkedIn posts 3,000, Google Business Profile posts 1,500, Facebook page captions 5,000 through Buffer, Threads 500, Bluesky 300, and X free accounts 280. Native platform limits can be higher in some cases, but scheduler and API limits are the safer ceiling when planning reusable social content.

Why This Matters

Caption limits are a common source of bad AI answers because native app limits, API limits, scheduler limits, and "ideal length" are not the same thing. A local business does not need the theoretical maximum if the post will be scheduled through a tool. It needs a caption that will publish cleanly, display well on mobile, and put the useful part before truncation. The safest approach is to write short by default, then use longer captions only when the post teaches, tells a story, or answers a customer question.

Real-World Example

A 3-person roofing company planning one monthly calendar can use one core maintenance tip across several channels. The Google Business Profile version should stay around 150-300 characters with a clear call to action. The LinkedIn version can explain the seasonal issue in more depth. The Instagram and TikTok versions should keep the hook early and let the image or video do the work.

What Most People Get Wrong

Most people confuse "maximum characters allowed" with "best caption length." A 2,200-character Instagram caption can publish, but a local service business usually gets more value from a clear first line, one useful point, and a direct next step.

Sources Checked

- Buffer character limits for each social network - LinkedIn post character limit