Knowledge Center

Financial Resources & Guides

Practical tips, tax guides, and financial insights to help you make smarter decisions all year long.

Quick Reference Guides

2026 Tax Deadline Calendar

Every key federal and Wisconsin state tax deadline in one place.

Small Business Deductions Checklist

A printable checklist of the most valuable deductions for small business owners.

Payroll Compliance Guide

Federal and Wisconsin payroll requirements, rates, and filing schedules.

Articles & Insights

Latest from Midian Finance

Tax Tips

10 Tax Deductions Small Business Owners Frequently Miss

From home office expenses to vehicle mileage, many small business owners leave significant deductions on the table each year. Here's what to look for before you file.

Planning

Mid-Year Financial Checkup: 7 Things to Review Right Now

Don't wait until December to think about your finances. A mid-year review can uncover opportunities to reduce your tax bill and strengthen your financial position.

Small Business

Cash Flow vs. Profit: Why the Difference Matters for Your Business

A business can be profitable on paper and still run out of cash. Understanding the distinction — and how to manage both — is essential for long-term survival.

Payroll

The True Cost of a Payroll Mistake (And How to Avoid Them)

Payroll errors don't just frustrate employees — they can trigger IRS penalties, state fines, and costly audits. Learn the most common mistakes and how to prevent them.

Tax Tips

Quarterly Estimated Taxes: A Simple Guide for the Self-Employed

If you're self-employed or run a small business, you're likely required to pay taxes four times a year. Here's how to calculate what you owe and avoid underpayment penalties.

Small Business

When to Hire a Fractional CFO (And What to Expect)

Growing businesses often need strategic financial leadership before they can afford a full-time CFO. A fractional CFO can fill that gap — here's how to know if it's the right move.

Planning

Retirement Planning for Small Business Owners: Your Options Explained

SEP-IRA, SIMPLE IRA, Solo 401(k) — the options can feel overwhelming. We break down each plan, who qualifies, and how to choose the right one for your situation.

Tax Tips

Sales Tax Nexus: What Multi-State Sellers Need to Know in 2026

Selling products or services across state lines? The rules around sales tax nexus have changed significantly in recent years. Here's what you need to stay compliant.

Payroll

Employee vs. Independent Contractor: Getting the Classification Right

Misclassifying workers is one of the most common — and costly — payroll mistakes. The IRS takes it seriously, and so should you. Here's how to get it right.

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