9 KPIs You Need to Know

Financial reports are more useful when you know what to look for.

A Profit & Loss Statement and Balance Sheet can tell you a lot about your business, but many small business owners do not want to sort through every account line by line each month. They want to know what the numbers mean, what changed, and whether anything needs attention.

That is where Key Performance Indicators, or KPIs, can help.

KPIs are simple measurements that help you understand how your business is performing. The right KPIs can give you a clearer view of profitability, cash flow, receivables, payables, and short-term financial health.

KPIs put the focus on a few useful numbers that help you make better decisions.

In this guide, you’ll learn:

• What KPIs are and why they matter for small business owners.
• Which 9 KPIs can give you a reasonably clear monthly financial summary of your business.
• How KPIs can help you understand profitability, cash flow, receivables, payables, and short-term financial health.
• Why KPIs are most useful when your books are current, reconciled, and reviewed.

1. Revenue

Revenue shows how much income your business generated during a period of time.

This is often the first number business owners look at, and for good reason. Revenue helps you see whether sales are increasing, decreasing, or staying steady.

But revenue does not tell the whole story. A business can have strong revenue and still struggle if expenses are too high, customers are slow to pay, debt service is high, or cash is being used faster than it is coming in.

Key takeaway: Revenue is important, but it should always be considered alongside profit, expenses, and cash.

2. Net Profit

Net profit shows what is left after all expenses are deducted from total income.

This is one of the clearest indicators of whether the business made money during the month. If revenue is strong but net profit is weak, that may point to rising expenses, pricing issues, unusual costs, or changes in how the business is being operated.

Key takeaway: Net profit helps answer a simple question: Is the business actually making money after expenses?

3. Net Profit Margin

Net profit margin shows how much of each revenue dollar becomes profit.

For example, if a business has a 10% net profit margin, that means about 10 cents of each revenue dollar remains as profit after expenses.

This KPI is useful because it makes profitability easier to compare from month to month. Revenue may change, but the margin helps show whether the business is keeping more or less of what it earns.

Key takeaway: A higher revenue month is not always better if the business keeps less of each dollar.

4. Operating Expense Ratio

The operating expense ratio shows how much revenue is being used to cover operating expenses. It is the operating expenses of the business divided by the revenue.

Operating expenses are the ordinary costs of running the business and usually exclude capital expenditures, loan principal payments, owner draws, transfers, and other non-operating items.

The operating expense ratio can help you see whether expenses are growing faster than revenue. If this ratio rises over time, the business may be spending more to generate the same amount of income.

This KPI can be especially useful when reviewing software subscriptions, rent, insurance, payroll, contractor costs, professional services, marketing, and other recurring expenses.

Key takeaway: The operating expense ratio helps answer: How much of our revenue is being put towards the core operations of the business?

5. Month-End Cash Balance and Net Cash Change

Month-end cash balance shows how much cash the business had at the end of the month.

Net cash change shows whether cash increased or decreased compared to the prior month.

These numbers are useful, but they should be read carefully. A lower cash balance is not always bad, and a higher cash balance is not always good. Timing matters. A business may have just paid taxes, bought equipment, made loan payments, or collected a large customer payment.

Key takeaway: Cash balance and net cash change provide helpful context, especially when reviewed with receivables, payables, cash coverage, and upcoming obligations.

6. Cash Coverage

Cash coverage helps show how long the business could cover average operating expenses using the cash currently available.

This KPI gives more context than a cash balance by itself. For example, $30,000 in cash may feel strong for one business and tight for another, depending on monthly expenses.

Key takeaway: Cash coverage helps answer: How much breathing room does the business have?

This can be useful when making decisions about hiring, owner pay, equipment purchases, marketing, or preparing for a slower season.

7. Accounts Receivable Aging

Accounts receivable shows money customers owe your business.

The aging part shows how old those unpaid invoices are. This matters because older invoices may be harder to collect and can create cash flow pressure.

A business may look profitable on paper but still feel short on cash if customers are slow to pay. Reviewing accounts receivable regularly helps you see whether expected cash is actually coming in.

Key takeaway: Accounts receivable aging helps answer: Are customers paying on time? Is a cash crunch looming on the horizon?

8. Accounts Payable Aging

Accounts payable shows money your business owes to vendors, suppliers, contractors, lenders, tax agencies, or other parties.

The aging part shows whether bills are current or overdue. This helps you understand upcoming obligations and avoid surprises.

Accounts payable aging is especially useful when reviewed with cash balance and cash coverage. It can help you see whether the business has enough cash to cover near-term bills, taxes, debt payments, and other obligations.

Key takeaway: Accounts payable aging helps answer: What does the business need to pay soon? Are late-payment penalties eating into my profits?

9. Quick Ratio

The quick ratio is a short-term financial health metric.

It compares readily available assets, such as cash and accounts receivable, to current liabilities. In plain English, it helps show whether the business appears to have enough short-term resources to cover short-term obligations.

This KPI is not meant to tell the whole story by itself. Timing, upcoming expenses, customer payment delays, owner draws, and debt payments can all affect the picture.

Key takeaway: The quick ratio can be a helpful signal when reviewed alongside cash, receivables, payables, and profitability.

KPIs Are Only Useful When the Books Are Current

KPIs are only as reliable as the bookkeeping behind them.

If transactions are missing, accounts are not reconciled, expenses are categorized inconsistently, invoices are not reviewed, or bills are not tracked, the KPIs may not tell the right story.

That is why a consistent monthly close process matters.

When the books are reviewed, reconciled, and organized each month, the numbers become more useful. They can help you see trends, ask better questions, and make decisions with more confidence.

Common Questions About KPIs

What is a KPI?

A KPI, or Key Performance Indicator, is a measurement that helps you understand how your business is performing in a specific area such as profitability, cash flow, receivables, payables, or short-term financial health. KPIs can tell you when things are going well or signal that some aspect of your business needs more attention.

Why should a small business owner review KPIs monthly?

Monthly KPI review can help you see trends, identify potential issues earlier, and make decisions with clearer financial information.

Are KPIs useful if the books are not current?

KPIs are most useful when the books are current, reconciled, and reviewed. If transactions are missing or poorly categorized, or accounts are not reconciled, the KPI results may be incomplete and misleading.

Business decisions are easier when your books are current and your monthly reports are clear.

If your financial reports are hard to understand, your cash flow feels unclear, or you are not sure which numbers you should be reviewing each month, Bookmark Bookkeeping can help.

We provide structured monthly bookkeeping and reporting in QuickBooks Online for Colorado professional and service-based businesses.

A few clear numbers can make business decisions feel a lot less like guesswork. Request a free consultation.

You may also find these related guides helpful: Understanding Small Business Financial Statements, Managing Cash Flow for Small Businesses, and How to Avoid Common Bookkeeping Mistakes.