Facebook may be getting very close to filing for its IPO if a new report is accurate. But take this for what it is. It’s still just a rumor at this point.

Nicholas Carlson at Business Insider says the publication received an email from a source “close to Facebook employees,” saying “that the rumor flitting from employee to employee is that ‘a Facebook S1 filing is coming really soon. Possibly as soon as next month.”

Still, he says another source says Facebook hasn’t even decided what banks will underwrite.

Two months ago, the Financial Times reported that Facebook is aiming for a late 2012 IPO launch.

Earlier this month, CEO Mark Zuckerberg told Charlie Rose, “It’’s not something I spend a lot of time on a day-to-day basis thinking about.”

Recent valuations of the company have exceeded $80 billion. That’s reportedly up from about $4 billion in 2008. That’s just amazing. Jolie O’Dell at VentureBeat recently shared this graph depicting the company’s valuation escalation:

We’re not going to hold our breath for the Facebook IPO. Why start now? But we can’t help but be a little curious as to how soon this thing really is going to happen, after years of waiting.