As a business owner, the two will always be intermixed. The more you get loans, bank accounts, credit cards, etc. in your business name and tax id number, it will build its credit. Though lenders will always want personal and business information until your business becomes publicly traded--then that's a different story. But I do encourage you to keep your finances separate between the two for audit purposes and so you can create accurate financial reports.
Pam Newman is a Certified Management Accountant, author and Certified QuickBooks ProAdvisor for Financial and Point-of-Sale software. She is also president of
RPPC, Inc., which provides customized business development services.