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TikTok Spark Ads — Video ads support video at 1080 × 1920 (9:16 (inherited from organic post)). Duration: No limit (inherited from post); recommended 15–60 sec. Maximum file size: 500 MB. See the full ad spec & try our free ad checker below.

TikTok video

Spark Ads — Video

Last updated: 2026-03-27

Dimensions

Dimensions
1080 × 1920
Aspect Ratio
9:16 (inherited from organic post)
Min Resolution
540 × 960

File

Max File Size
500 MB
Formats
MP4, MOV

Duration

Video Duration
No limit (inherited from post)
Rec. Duration
15–60 sec

Notes

Boosts existing organic TikTok posts as ads. Uses the creator's profile and engagement. Authorization code required from creator (valid 30, 60, or 365 days). No duration restrictions — inherits the organic post's length. Captions pulled from the organic video.

Official spec documentation

Quick Checklist

For this video format, make sure your creative meets:

  • Resolution: 1080 × 1920
  • Aspect ratio: 9:16 (inherited from organic post)
  • Duration: No limit (inherited from post)
  • Max size: 500 MB
  • Formats: MP4, MOV