Accounting SolutionsFor the Modern Professional

Technology ConsultingFor Every Business

Work Where You MatterCareers at JBC

We provide trusted accounting guidance built on long-term relationships, helping individuals and businesses make confident decisions for today and the future.

Specializing in virtualization, mobile and cloud solutions.

With multiple locations across Wisconsin, Johnson Block offers meaningful work, supportive teams, and opportunities to grow.

Johnson Block is Wisconsin's Certified Public Accountants with a leading edge in audit, tax, client accounting services, municipal accounting services and technology services for businesses and individuals.

42 years

Of Service

4 Offices

In Southern Wisconsin

Over 75

Employees

Johnson Block started in 1985 with the first office in Madison, followed by the addition of the Mineral Point office in 1990, the Viroqua office in 2012, and the La Crosse office in 2016. We have provided professional services to our clients for more than 42 years. The firm’s philosophy emphasizes direct personal service from experienced professionals. We strive to learn first‑hand about each client’s operations and directly share our experience and knowledge. Our goal is to maintain long-term professional relationships between our clients and our staff. This assures our clients have access to professionals who are familiar with their operations and intricacies.

Business
Technology Services

Navigating the quickly changing world of technology can be difficult. Allow our Technology Service team to help you understand technology and make informed decisions. We offer advisory, purchasing, and implementation services. 

Industry Highlights

Accounting News

Q4 tax planning: what needs to happen, and when?

09/30/2026
Q4 tax planning is not a single deadline; it’s a series of decisions that each have their own timing. Some strategies require lead time to execute, others depend on an […]
Accounting News

The IRS has a new mobile app. Here’s what taxpayers can do with it.

09/30/2026
The IRS has launched a new mobile app that replaces IRS2Go, giving taxpayers quick access to refund status, payment history, tax records, IRS notices, and Identity Protection PINs. This article […]
Accounting News

Fraud prevention strategies for nonprofit organizations

09/23/2026
Nonprofits are disproportionately vulnerable to occupational fraud due to small administrative teams, part-time board oversight, and heavy reliance on cash-based transactions. Asset misappropriation schemes such as skimming, billing fraud, and […]
Accounting News

The Quiet Risk of State and Local Payroll Tax Reporting Gaps

09/22/2026
Payroll tax gaps often emerge when employee work locations and tax reporting fall out of sync. Learn where exposure occurs, what is at risk, and how employers can identify and […]
Accounting News

Retirement Plan Oversight: Four Ways to Reduce Risk

09/16/2026
ERISA keeps retirement plan oversight with the sponsor. Four ways fiduciaries reduce risk: form a committee, monitor your TPA, assign ownership, act fast. […]
Accounting News

Form 990 filing mistakes that can undermine your nonprofit’s credibility

09/9/2026
Form 990 is more than a tax return; it’s a public document that donors, grantmakers, and regulators use to evaluate your nonprofit. Common mistakes in filing, reconciliation, and narrative disclosures […]