A company finishes the year with $180,000 in net income. Good year. Better than last year. The owner looks at the P&L, feels good, and heads into the holidays.
In January, they can't make payroll.
If you've never run a business, that sounds impossible. If you have, you've probably lived some version of it.
This isn't a bookkeeping error. This is what happens when you run a business using only your income statement.
Profit and Cash Are Not the Same Thing
This is the most important concept in small business finance that nobody explains clearly.
| What It Measures | Time Frame | |
|---|---|---|
| Income Statement (P&L) | Profit — revenue minus expenses | A period of time |
| Bank Account | Cash — what's actually there | Right now |
| Balance Sheet | Position — assets, liabilities, equity | A point in time |
These three numbers move together sometimes. Often they don't. The gap between profit and cash lives almost entirely on the balance sheet.
Four Reasons Profit and Cash Diverge
1. Accounts Receivable — Money Earned, Not Yet Collected
When you complete a job and send an invoice, revenue hits your P&L immediately. But if the customer pays in 45 days, the cash doesn't arrive for 45 days. That invoice sits on the balance sheet as accounts receivable — an asset, technically, but not cash.
The math: A company doing $3M in revenue with 45-day terms has roughly $370,000 in outstanding receivables at any given time. That's $370,000 of earned revenue on the P&L that isn't in the bank.
Growth makes this worse, not better. If revenue grows 20%, receivables grow with it — to $440,000+. The income statement shows a great year. The cash balance actually decreased because growth consumed working capital before collections caught up.
This is how a growing business runs out of cash.
2. Inventory — The Asset That Eats Cash
When you buy $200,000 of inventory, cash goes out immediately. But inventory sits on the balance sheet as an asset — not as an expense. It doesn't hit the P&L until you sell it.
| What Happened | Income Statement | Cash |
|---|---|---|
| Buy $200K inventory | No impact | −$200,000 |
| Sell $200K inventory | +$200K revenue | +$200K (when collected) |
The P&L looks unaffected by the purchase. Cash just dropped $200,000.
Excess inventory is cash converted into stuff sitting on a shelf. A business with 90 days of inventory on hand, when its industry average is 30, has two months of cash trapped in product. Not an accounting technicality — real money that could be paying down a line of credit.
3. Capital Expenditures — Big Purchases That Disappear from the P&L
When you buy a $120,000 piece of equipment, most owners expect a $120,000 expense to hit the P&L. It doesn't.
| What Actually Happens | Where It Goes |
|---|---|
| Equipment purchase | Goes on balance sheet as fixed asset |
| Annual depreciation (~$24K/year) | Shows as P&L expense each year |
| The other $96K in year one | Invisible to the income statement |
The P&L shows $24,000 of expense. The bank account lost $120,000.
This is especially pronounced in capital-intensive businesses — construction, manufacturing, equipment rental, transportation — where major asset purchases are routine. The income statement looks strong all year while the business is steadily depleting cash on equipment and infrastructure.
4. Debt Principal — The Payment That Vanishes
When you make a loan payment, only the interest is an expense on the P&L. The principal reduction comes off the loan balance on the balance sheet.
Example: A $400,000 equipment loan at 7% over 5 years.
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Annual payment: ~$95,000
P&L sees: ~$28,000 (interest expense only)
Bank account loses: $95,000
That $67,000 gap doesn't show up anywhere on the income statement. This is precisely why lenders use DSCR instead of just looking at profit — they know what the P&L is leaving out.
The Cash Bridge
Here's a simple way to see it all at once. Start with profit, adjust for the balance sheet, and you get to actual cash:
| Starting Point | |
|---|---|
| Net Income | $180,000 |
| + Depreciation (non-cash expense added back) | +$24,000 |
| − Increase in Accounts Receivable (earned but not collected) | −$47,000 |
| − Increase in Inventory (cash spent, not yet expensed) | −$38,000 |
| − Principal Payments (cash out, not on P&L) | −$67,000 |
| − Equipment Purchase Down Payment | −$20,000 |
| = Actual Change in Cash | $32,000 |
The business made $180,000 in profit. Cash went up by $32,000. Both numbers are true. The balance sheet explains the gap.
Read Both Documents
The businesses that get surprised in January — profitable on paper, scrambling for payroll — are businesses that only read one document.
The P&L is the highlight reel. The balance sheet is what actually happened on the field.
When you review your financials, pull both statements. Look at how receivables changed. Look at how inventory changed. Look at what happened to your loan balances. The story between those two documents is what actually happened to your business.
Next: how to use your balance sheet to make real decisions — contracts, equipment, growth.
jrbohlke.com • The Analysis