There are currently seven seasons of Slow Horses planned and officially confirmed, but anything beyond that has not been announced yet.

What’s Confirmed So Far

  • Apple TV+ has renewed Slow Horses through season 7 , with both season 6 and season 7 officially announced by the streamer.
  • Season 6 and season 7 are planned to continue the same format of short six-episode seasons , adapting Mick Herron’s later Slough House novels.

Will There Be More After Season 7?

  • As of the latest updates, the platform has not confirmed any seasons beyond season 7 , so the current answer is “up to season 7, with the future open but unannounced.”
  • There is still plenty of book material (multiple novels and novellas) that could support more seasons if Apple TV+ decides to extend the show further.

Why It Feels Like There Are So Many

  • The show films seasons back to back , and each one only has six episodes , which makes it easier to release new seasons faster than most prestige dramas.
  • Because of that rapid cadence, fans online often joke that the show is “speed‑running” its way through the books, which adds to the sense that there are a lot of seasons already and more easily could come.

For now, if you’re planning a watch or a rewatch, you can count on seven seasons of Slow Horses being the current horizon, with the door open for more if Apple TV+ chooses to continue it.

TL;DR: How many seasons of Slow Horses will there be?
Officially: up to season 7 so far; anything after that hasn’t been announced yet.

Information gathered from public forums or data available on the internet and portrayed here.