- California EDD New Business Registration Online: File your DE-1 business registration online with CA EDD’s new EZREG!
- Federation of Tax Administrators: Links to the various state taxing agencies
- Internal Revenue Service
- Internal Revenue Service’s FEIN Registration Online: Register your new business online!
- California EDD
- Paycheck City Check Calculator: FREE check calculation tool, including bonus calculations, 401K calculations, and many other If/Then tools.

