By The Books Bookkeeping and Tax is a West Windsor, NJ tax and accounting firm serving small and mid-sized businesses. Its work includes accounting services, bookkeeping, payroll, business and individual tax preparation, sales tax, and tax planning.

The firm also supports clients with QuickBooks/Xero setup and accounting software needs, helping organize financial information into clearer, usable records. Its website describes a focus on personalized service, tailored solutions, and guidance for business owners and real estate investors, with Heather Nielsen identified as owner and CPA.

For clients looking for ongoing financial support, By The Books Bookkeeping and Tax combines tax planning and advisory with practical bookkeeping and accounting services.