Q: Can I fast the 6 days of Shawwal before my Ramadan makeup days?
A: No. You must first make up any missed days of Ramadan followed by any days you have sworn to fast and then you can perform voluntary fasts such as the 6 recommended days of Shawwal. Source: Kashaf al-Qina’
This answer was collected from HanbaliDisciples.com. The questions have been answered by Imam John Starling.