Which Financial Reports Should a Small Business Run Every Month?

By Bill Stilwell · Last reviewed October 17, 2026

The short answer

Each month, run four reports: a profit and loss statement, a balance sheet, a cash flow statement, and a job margin report. Together they tell you whether you made money, what you own and owe, where the cash went, and which jobs are worth doing. Run them only after your accounts are reconciled, or the numbers can’t be trusted.

What this means

Profit and loss (P&L). Also called an income statement. It shows income minus expenses for a period, like a month. The bottom line is profit or loss.
Balance sheet. A snapshot of what the business owns (assets), owes (liabilities), and the owners’ stake (equity) on one date. The Small Business Administration (SBA) calls the balance sheet the foundation of managing your finances.
Cash flow statement. Shows cash coming in and going out, sorted into running the business, buying equipment, and borrowing or owner money. It explains why your bank balance changed.
Job margin report. Shows income minus direct costs for each job or service, like labor, materials, and subcontractors. Most software can do this if you tag transactions by job or customer.

Made-up example: Clearwater Pool Service showed a profit every month but kept running short on cash. The cash flow statement showed why: the owner had bought a new truck and was paying down a loan. The job margin report showed that one-time green pool cleanups were barely breaking even, while weekly service routes made good money. The owner raised the cleanup price.

Why it matters

Profit isn’t cash. You can show a profit and still not cover payroll.
Averages hide losers. Without job margins, a few bad jobs can quietly eat your profit.
Lenders and partners want them. A bank will usually ask for a P&L and balance sheet.
Decisions get guessed. Pricing, hiring, and ad budgets need real numbers (see 21.1 Business Metrics).

Who this applies to

Every business. A very small business with simple books may lean on the P&L and cash flow first. Any business that does jobs or projects should add job margins.

How to do it

Finish the month. Record all transactions and reconcile every account first (see 10.5.3 Bank Reconciliation).
Tag income and costs by job or service as you go, using customers, classes, or projects in your software.
Run the P&L for the month and the year so far. Compare to the same month last year if you have it.
Run the balance sheet as of the last day of the month. Check that cash matches your bank statements.
Run the cash flow statement for the month.
Run the job margin report. Sort by margin to see your best and worst work.
Write three short notes: what changed, what surprised you, and one action to take.
Save the reports as PDFs in a monthly folder.
Review them with your bookkeeper or tax pro at least once a quarter (see 24.1 Monthly Financial Review).

What proof to keep

Monthly PDFs of all four reports
Your short notes and actions for each month
Year-end reports that match your tax return

Common mistakes

Running reports before reconciling, then making decisions on wrong numbers.
Only looking at the bank balance. It doesn’t show what you owe or what’s owed to you.
Owner draws hidden in expenses, which makes profit look lower than it is.
No job tags, so you can’t see margin by job.
Running reports and never reading them.

When to get help from a pro

A certified public accountant (CPA) or bookkeeper can walk you through your first few months of reports. Questions to ask:

Which numbers on these reports should I watch most closely for my kind of business?
How should I set up jobs or classes to get margin by job?
Are my reports in the format a bank will want?

Bill’s note

[Bill: add a short note. For example, which report you check first for SiteSmarty each month, or a time a job margin report changed how you price a service.]

How I did this for SiteSmarty

[Date I did this:]
[What I actually did, step by step: which reports I run, when, and where I save them]
[What it cost and how long it took:]
[What surprised me or what I’d do differently:]
[Screenshot or photo to add, with private info blurred: the monthly report folder with the four reports]
[Result so far:]

Questions people ask

What is a profit and loss statement? A report of income minus expenses for a period. It tells you whether you made or lost money.

What does a balance sheet show? What the business owns, what it owes, and the owners’ stake on one date.

Why do I have profit but no cash? Money can go to loan payments, equipment, owner draws, or customers who haven’t paid yet. The cash flow statement shows where it went.

How do I find profit on each job? Tag income and direct costs to each job in your software, then run a job or project profitability report.

How often should I look at reports? Monthly, after you reconcile.

Audit check

Question: Does the business run and save a P&L, balance sheet, cash flow statement, and job margin report every month after reconciling?
Pass looks like: Four saved reports per month. Notes and actions recorded. Cash on the balance sheet matches the bank. Jobs tagged.
Fail looks like: Reports run only at tax time. Reports run before reconciling. No job margins. Owner draws in expenses.
Evidence to collect: The last three months of saved reports and notes, and a reconciliation report for the same months.

Where this fits

Do this first: 10.5.7 Accounts Payable, 10.5.3 Bank Reconciliation

Do this next: 10.6.1 Spending and Refund Authority

Sources

Small Business Administration, "Manage your finances" (checked October 17, 2026)
SBA Ascent, "Profit and Loss (P\&L) statement" tool (checked October 17, 2026)
SBA Ascent, "How to Understand Balance Sheets" tool (checked October 17, 2026)
SBA Ascent, "How to Understand Cash Flow Statements" tool (checked October 17, 2026)

This page explains general rules and Bill's own experience. It is not legal, tax, or insurance advice. Talk to a qualified professional about your situation.