According to sources who spoke to Football Insider, Celtic have between £6 and £10 million to spend during the January transfer window.
The Hoops have a three-man winter target list that includes a striker, a central midfielder, and a left winger, as reported by Football Insider on December 28.
Their sudden departure from European football, having finished their Champions League campaign bottom of their group, has had an impact on their finances.
After defeating Dundee 3-0 on the road on Boxing Day, Celtic is still leading the league. On Saturday, December 30, they play title rivals Rangers in the Old Firm.