FSS CPA LLC is a Wisconsin-licensed accounting firm serving small businesses, individuals, executives, and independent professionals. The firm provides accounting, tax, and planning support for clients in the Marshall and Windsor, WI area, with services that include tax preparation, tax planning, personal financial planning, estate planning, and retirement planning.

For business clients, FSS CPA LLC offers small business accounting, payroll, 1099 preparation, cash flow management, business advisory services, entity structure planning, business valuation, succession planning, and support for sales and use tax or personal property tax returns. The firm also works with QuickBooks, including setup, training, QuickBooks Online, tuneups, and practical software guidance.

The profile source also notes support for IRS tax issues, bookkeeping challenges, payroll management, and financial planning needs, presented as part of the firm's broader tax and accounting service menu.