My 118-Item Due Diligence Checklist: Critical or Fluff?

Introduction

Now that I’m deep into due diligence for a business I’m evaluating, I’m trying to stay focused on proving the story I believed when I made the offer - not tearing apart a business just because I’m seeing it through spreadsheets and documents. My due diligence checklist has 118 separate items, and even with a list that long, I still catch myself wondering: Am I looking at everything that truly matters?

This is my first time acquiring a business on my own. In past deals, teams of attorneys, analysts, and lenders handled different pieces. Now it’s all on me - and it’s been eye-opening.

Why Due Diligence Matters

Due diligence isn’t about tearing a business apart. It’s about confirming what I think I know and uncovering what I don’t. It’s the bridge between optimism and reality - the process that protects both buyer and seller.

Each category in my checklist serves a purpose. Here’s how they break down and why they matter to me.

◙ Financials - 12 Items

This is where I confirm whether the business actually produces the cash flow I think I’m buying. Profit and loss statements, tax returns, AR/AP, margins, and trends reveal the truth behind the story. If the numbers don’t hold up, nothing else matters.

◙ Legal & Corporate - 14 Items

I’m making sure the business is clean - no hidden lawsuits, liens, ownership issues, or structural problems. This protects me from inheriting someone else’s legal baggage.

◙ Operations & Equipment - 12 Items

Financials tell me what happened yesterday. Operations tell me what will happen tomorrow. Equipment condition, supplier agreements, backlog, WIP, and safety records show whether the business can actually run smoothly after the transition.

◙ Employees & HR - 11 Items

I’m not just buying a business - I’m inheriting a team. Understanding roles, compensation, benefits, 1099s, and retention risks helps me avoid surprises and protect the culture that makes the business work.

◙ Customers & Sales - 9 Items

This is the revenue engine. Customer concentration, contracts, pipeline, and reputation tell me how stable the business really is. A business with one customer making up 40% of revenue is a very different risk profile.

◙ Real Estate - 11 Items

Property can make or break financing - especially with SBA. Appraisal, environmental reports, survey, title, zoning, and flood zone all determine whether the property is an asset or a liability.

◙ Licenses, Permits & Insurance - 11 Items

Compliance keeps the business legal and protected. Missing licenses or expired insurance can shut down operations overnight.

◙ Tax Records - 6 Items

Tax returns don’t lie. They confirm revenue, profit, payroll, and compliance - and they’re often the first thing lenders scrutinize.

◙ Vendor & Supplier - 5 Items

A business is only as strong as its supply chain. Vendor concentration, pricing agreements, and disruption history reveal operational risk. This particular business has a high cost of goods sold (COGS), so I constantly wonder if I’m focused enough here.

◙ Environmental & Regulatory - 5 Items

Especially in construction or property-based businesses, environmental issues can kill a deal instantly. I need to know exactly what I’m stepping into.

◙ Technology & IP - 7 Items

Domains, software, CRM systems, and customer data ownership determine how smoothly operations transition on Day 1. I don’t want to discover the seller doesn’t actually own their own website.

◙ SBA Requirements - 15 Items

This is the layer that turns a good deal into a fundable deal. Projections, DSCR, business plan, personal financials, and eligibility - it all has to line up.

Reflection

Due diligence isn’t just a checklist - it’s a mindset. It’s about curiosity, discipline, and respect for the business I’m evaluating. The goal isn’t to find flaws; it’s to understand the full picture so I can make a confident decision.

Even with 118 items, I know there’s always more to learn. So I’ll ask you:

What’s the most important thing you would want to know before buying a business?

A financial metric? A customer concentration threshold? A red flag in operations? Something about the owner? A culture insight? A legal detail that’s easy to overlook? A gut-check question you always ask?

Your experience might help me - and someone else stepping into business ownership for the first time.

Let’s keep Louisiana businesses in Louisiana hands.