Q: When entering an identification number, for example a driver’s license number, should I include hyphens?
A: No. Enter all identifying numbers as a single text string without formatting or special characters such as hyphens or periods. An identifying number in the format NNN-NN-NNNN would be entered as NNNNNNNNN. Such numbers may include letter and number characters. Common identifying numbers include account numbers, alien registration numbers, driver’s license and state identification numbers, Employer Identification Numbers (EIN), passport numbers, Social Security Numbers (SSN), and industry specific identifiers such as National Futures Association (NFA) numbers and Securities and Central Registration Depository (CRD) numbers.
This is addressed in the "FinCEN Currency Transaction Report Electronic Filing Requirements" guide, Attachment C, General Instruction #12.
The guide can be found here: http://sdtmut.fincen.treas.gov/docs/FinCENCTRElectronicFilingRequirements.pdf