Keller Tax & Insurance Group LLC provides tax preparation and accounting services from its office in Fennimore, WI. The firm works with individuals, families, farms, and small businesses in southwest Wisconsin, with services that include tax planning, business tax preparation, individual tax preparation, accounting, and payroll support.

Its accounting and payroll work includes payroll services, record keeping, general ledger and transaction reports, monthly or quarterly financial reports, bank reconciliation, employment form filing, and withholding advice. The firm also supports tax planning and preparation for individuals, farms, businesses, partnerships, corporations, LLCs, LLPs, and trusts.

The business history traces back to Andre Keller preparing taxes through ALK Tax Services in 1991, later expanding into accounting, business services, and insurance under the current Keller Tax & Insurance Group LLC name.