TL;DR: What Smart Buyers Do
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Start With the Numbers
SDE is your “real” salary — audit every add-back.
Look beyond revenue: check profit margins, cash flow, debt.
Verify trends over 3 years — not just the shiny current year. -
Do the Dirty Work
Match P&Ls to tax returns and bank statements.
Audit working capital — don’t buy a cash-starved mess.
Expose the games: delayed expenses, inflated one-timers, etc. -
Figure Out What It’s Actually Worth
SDE × Industry Multiple = only a starting point.
Use asset value and reverse DCF to check the math.
If it only makes sense with “potential,” it doesn’t. -
Spot the Red Flags Early
Owner is the business? Run.
Revenue spike before sale? Check for manipulation.
Shady add-backs, customer concentration, missing docs? Major red flags. -
Negotiate Like a Pro
Anchor your offer with data — not emotion.
Structure smarter deals with seller financing, earn-outs, or holdbacks.
Know your walk-away point (BATNA) and stick to it.
Start With the Numbers That Matter
Before you fall in love with the brand or “potential,” get intimate with the math.
If the numbers suck, no amount of vision will save you.
Here’s how experienced buyers break down a business fast — and what brokers conveniently gloss over.
The Core Metric: SDE (Seller’s Discretionary Earnings)
SDE is the total financial benefit the owner takes home — salary + perks + add-backs.
What to check:
- Compare tax returns vs profit and loss statements
- Audit the add-backs
- Analyze owner workload and replaceability
If SDE is $325K but the owner works 70 hours/week with no ops team, that’s not income — that’s a hostage situation.
Margin Check — Is It Efficient?
- Gross Margin = (Revenue – COGS) ÷ Revenue
- Net Margin = Net Profit ÷ Revenue
Compare these against industry benchmarks.
If gross margin is way below the norm, dig in.
Cash Flow Reality
Accrual accounting lies. Check:
- Accounts receivable trends
- Inventory build-up
- Owner draws vs income
Pro tip: Always check the bank statements.
Revenue Trends
- Is it growing steadily?
- Any one-off spikes?
- What’s the moat: brand, IP, location?
Ask: “How would I grow this 20% next year?”
If you don’t know, that’s a problem.
Quick Ratio & Debt Load
- Quick Ratio = (Cash + A/R) ÷ Current Liabilities
Aim for 1.0 or higher.
Check for:
- Total debt
- Balloon payments
- EIDL loans or maxed LOCs
Do the Dirty Work: Financial Due Diligence
Step 1: Get the Docs
Request 3 years of:
- P&Ls, balance sheets, tax returns
- Cash flow statements
- Bank, payroll, and loan documents
Step 2: Audit the Add-Backs
Add-Back Type | Legit? | Why It Matters |
---|---|---|
Owner salary | ✅ | Fair to add back — you’re replacing them |
Personal car lease | ✅ | Optional cost |
One-time legal fees | ☑️ | Must be truly one-off |
Marketing tests | ❌ | Often recurring |
Related-party rent | ❌ | May be distorted |
Step 3: P&L to Tax to Bank Match
Cross-check P&L → Tax Return → Bank Deposit.
If they don’t line up? Big red flag.
Step 4: Normalize Working Capital
Check:
- A/R aging
- A/P terms
- Inventory depletion or hoarding
Step 5: Spot Seller Games
Watch for:
- Delayed expenses
- Front-loaded revenue
- Magically clean books
Valuation – What’s It Actually Worth?
SDE × Industry Multiple
This is the headline method — and the most abused.
Factor | Boosts Valuation | Lowers Valuation |
---|---|---|
Recurring revenue | ✅ | |
Owner dependency | ✅ | |
Clean books | ✅ | |
Customer concentration | ✅ | |
Documented growth | ✅ |
Rule of thumb:
- Low quality: 1.5–2x
- Solid biz: 2.5–3x
- Growth & stability: 3.5–4x+
Asset-Based Valuation
Use when:
- Biz is asset-heavy
- Profit is weak or nonexistent
Formula: Tangible Assets – Liabilities
Reverse DCF Gut Check
Formula: SDE ÷ Desired ROI
e.g., $300K ÷ 0.25 = $1.2M value (if you want a 25% return)
Red Flags You Can’t Ignore
- Owner = Business
- Suspicious add-backs
- High customer concentration
- Revenue spike before sale
- No online presence
- Burned-out staff
- Vague or evasive seller
Can You Negotiate a Smarter Deal?
Use Price Follows Proof
Call out:
- Bad add-backs
- Customer risk
- Inflated multiple
ZOPA + BATNA
Know your range and your walk-away option.
Smarter Deal Structures
Structure | When to Use | What to Watch |
---|---|---|
Seller Financing | For transition help | Balloon clauses |
Earn-Out | Unproven growth | Vague metrics |
Holdbacks / Escrow | Protect against BS | Enforceability |
Working Cap Adj. | Prevent cash drain | Fuzzy baselines |
Anchor with Confidence
“I see $210K in reliable SDE and a 3x multiple. That’s $630K fair value. I’ll offer $600K cash or $650K with terms.”
Final Verdict
You’re not just buying a business. You’re buying risk, cash flow, and a whole lot of headaches.
Value it like your savings account depends on it. Because it does.
Ready to Run the Numbers Like a Pro?
Acquidex cuts through the BS with real data, risk flags, and fast insights — before you sign anything.
Disclaimer
This article is for informational purposes only and does not constitute financial, legal, or investment advice. Always consult with a qualified professional before making any acquisition decisions.

Avery Hastings, CPA
Avery Hastings, CPA lives in Tokyo, helping first-time buyers cut through the noise and avoid bad deals. When she's not tearing apart small biz P&Ls, you’ll find her sipping a Pauillac red or carving through powder on her snowboard in the Japanese Alps.