What Is a Balance Sheet? One Year-End Balance Sheet Line by Line, and the $250,000 Test for Filing It
A balance sheet shows what a business owns, owes and is worth to its owners on one date, and assets always equal liabilities plus equity. As of October 2026, an S corporation must file one on its return (Schedule L) unless both its receipts and its assets were under $250,000.
What is a balance sheet? The short answer
A balance sheet is a snapshot of a business on one date: what it owns (assets), what it owes (liabilities), and what is left for the owners (equity). The two sides always match, because assets = liabilities + equity. Where an income statement asks "did we make money this year?", the balance sheet asks "where do we stand today?"
As of October 2026, most small businesses get one from their accounting software at the click of a button, and many owners never open it. The IRS does, for some of them: an S corporation's return contains a full balance sheet, Schedule L, that "should agree with the corporation's books and records." This guide builds one year-end balance sheet for a small service company line by line, maps it to the lines of that schedule, and shows the $250,000 test that decides whether you have to file it.
The balance sheet formula
Assets = liabilities + equity. Rearranged, equity = assets minus liabilities: if the business sold everything it owns at book value and paid everything it owes, equity is what the owners would keep. The equation holds because of double-entry bookkeeping. Every transaction in the general ledger posts an equal debit and credit, so a $30,000 van bought with a loan adds $30,000 to assets and $30,000 to liabilities at the same moment.
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The sections of a balance sheet
| Section | What goes in it | Examples |
|---|---|---|
| Current assets | Cash and anything that turns into cash within a year | Checking, accounts receivable, parts inventory |
| Fixed (long-term) assets | Things you use for years, shown net of depreciation | Vans, equipment, buildings |
| Current liabilities | What you owe within a year | Vendor bills, credit cards, payroll and sales tax not yet remitted, the next 12 months of loan payments |
| Long-term liabilities | What you owe after a year | The rest of an equipment loan or mortgage |
| Equity | The owners' stake | Money the owners put in, plus profit kept in the business (retained earnings) |
Which accounts appear, and in what order, comes straight from your chart of accounts: the 1000s, 2000s and 3000s are the balance sheet; the rest are the income statement.
One year-end balance sheet, line by line
Take a hypothetical HVAC service company organized as an S corporation, with $480,000 of revenue for the year and $75,000 of net income (the same company walked through on our income statement page). Here is its balance sheet as of December 31, with the Schedule L line each figure would go on (Form 1120-S, 2025, read October 5, 2026). The figures are illustrative.
| Line item | Amount | Schedule L line |
|---|---|---|
| Assets | ||
| Cash | $62,000 | 1 |
| Accounts receivable (unpaid invoices) | $40,000 | 2a |
| Parts inventory | $8,000 | 3 |
| Vans and equipment, at cost | $120,000 | 10a |
| Less accumulated depreciation | ($48,000) | 10b |
| Total assets | $182,000 | 15 |
| Liabilities | ||
| Accounts payable | $14,000 | 16 |
| Equipment loan, due within 12 months | $12,000 | 17 |
| Payroll and sales tax payable | $9,000 | 18 |
| Loan from the owner | $10,000 | 19 |
| Equipment loan, due after 12 months | $30,000 | 20 |
| Total liabilities | $75,000 | |
| Shareholders' equity | ||
| Capital stock | $1,000 | 22 |
| Additional paid-in capital | $9,000 | 23 |
| Retained earnings | $97,000 | 24 |
| Total liabilities and equity | $182,000 | 27 |
It balances: $182,000 on each side. Two connections are worth tracing. The $40,000 of receivables is the revenue the income statement counted but customers have not paid yet, which is why the company's profit was $75,000 while its cash is $62,000. And retained earnings moved during the year exactly as the income statement says it should: $72,000 at January 1, plus $75,000 of net income, minus $50,000 the owner took out as distributions, equals $97,000. How that $97,000 built up over four years, including a first-year deficit, and why the S corporation's tax version of it (the AAA on Schedule M-2) ends the year lower, is in what retained earnings is.
Three numbers to read off it
- Working capital = current assets minus current liabilities. Here, $110,000 minus $35,000 = $75,000: what the company could cover from short-term resources if every near-term bill came due at once.
- Current ratio = current assets divided by current liabilities. $110,000 / $35,000 = 3.1. Below 1 means the bills due this year are bigger than what the business can turn into cash this year.
- Debt-to-equity = total liabilities divided by equity. $75,000 / $107,000 = 0.70: the business is financed more by its owners than by its creditors.
The receivables line also feeds the most useful collections metric you can compute: average the opening and closing receivables and you have the denominator of the accounts receivable turnover ratio.
When the IRS wants your balance sheet
This is the part most balance sheet explainers skip. Whether a balance sheet goes on your federal return depends on how the business files:
- Sole proprietors and single-member LLCs (Schedule C): no balance sheet on the return. Schedule C is income and expenses only. You still need one for any lender, buyer or landlord who asks.
- S corporations (Form 1120-S): Schedule L, "Balance Sheets per Books," with beginning-of-year and end-of-year columns, plus Schedule M-1, which reconciles "net income (loss) per books" to the income on the return. Total assets from Schedule L, line 15 also go on page 1, item F.
The S corporation exemption is Schedule B, question 11. You skip Schedules L and M-1 only if both are true: total receipts for the year were less than $250,000, and total assets at year end were less than $250,000. "Total receipts" means gross receipts plus other income lines, not profit.
Run the HVAC company through it. Assets are $182,000, under the line. Receipts are $480,000, over it. Only one of the two conditions is met, so the company files a full balance sheet with its return, and that balance sheet has to tie to its books. Plenty of small S corporations with modest assets cross the receipts line without noticing, which is how a messy balance sheet becomes a tax-prep problem in March.
Two smaller rules from the same instructions. The owner's $10,000 loan on line 19 "should reconcile to the sum of all amounts reported on Schedules K-1" as debt owed to shareholders, so an undocumented owner loan shows up twice. And because Schedule L has a beginning-of-year column, last year's closing balance sheet has to match this year's opening one. Partnerships and C corporations file their own versions with their own tests; check your form's instructions.
Balance sheet vs income statement vs cash flow statement
| Report | Covers | Answers |
|---|---|---|
| Balance sheet | One date: "as of December 31" | What do we own and owe, and what is the owners' stake? |
| Income statement | A period: "for the year ended December 31" | Did we make money? |
| Cash flow statement | A period | Where did the cash come from and go? |
The income statement's bottom line flows into equity on the balance sheet. The cash flow statement explains why the cash line moved by a different amount than profit did.
Why small business balance sheets go wrong
The income statement gets attention every month. The balance sheet gets ignored, so errors pile up there. The usual ones:
- Receivables that will never be collected still sitting in accounts receivable, inflating assets.
- Loan payments booked entirely as expense, when only the interest is an expense; the principal reduces the liability.
- Owner money with no label: transfers in and out that are neither clearly a loan, a contribution nor a distribution.
- Sales and payroll tax liabilities that never clear, because the remittance was coded to an expense instead of to the liability.
- Cash that does not match the bank, because the account was never reconciled.
Each of these is fixed by monthly reconciliation, which is most of what you pay a bookkeeper for; how much a bookkeeper costs breaks down the published prices.
See the balance sheet every month, not once a year
A balance sheet you look at monthly catches the receivable that is going bad, the tax liability that is not clearing, and the cash squeeze before it arrives. SuperDupr's AI dashboards pull the balances from your accounting software into one view next to the numbers you already watch, and flag movements that do not look normal, so the balance sheet gets read before tax season.
The bottom line
A balance sheet is what the business owns, owes and is worth to its owners on one date, and it always balances: assets equal liabilities plus equity. Read working capital, the current ratio and debt-to-equity off it. And if you run an S corporation with $250,000 or more in receipts or assets, it is not optional: it goes on Schedule L, and it has to agree with your books.
Sources (read October 5, 2026): IRS, Form 1120-S (2025), Schedule B question 11, Schedule L and Schedule M-1 (irs.gov/pub/irs-pdf/f1120s.pdf); IRS, Instructions for Form 1120-S (2025), Schedule L, line 24, Schedule M-1, question 11 total receipts definition, and Schedule K-1 item I (irs.gov); IRS, Schedule C (Form 1040) 2025 (irs.gov). The HVAC company and its figures are a hypothetical with illustrative amounts.
Frequently Asked Questions
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It is a snapshot of a business on a single date: everything it owns (assets), everything it owes (liabilities), and what is left over for the owners (equity). It always balances, because assets equal liabilities plus equity.
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Assets = liabilities + equity. Rearranged, equity = assets minus liabilities. It holds because every transaction is recorded as an equal debit and credit, so a van bought with a loan adds the same amount to assets and to liabilities.
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The income statement covers a period and shows whether the business made money. The balance sheet covers one date and shows what the business owns and owes. The year's net income flows into equity on the balance sheet, through retained earnings in a corporation.
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It depends on the entity. A sole proprietor's Schedule C has no balance sheet. An S corporation completes Schedule L, Balance Sheets per Books, on Form 1120-S unless both its total receipts for the year and its total assets at year end were under $250,000 (Schedule B, question 11). A company with $480,000 of receipts files one even if its assets are only $182,000.
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The profit a corporation has kept in the business over its life, rather than paid out to owners. Each year it rises by net income and falls by distributions or dividends: $72,000 at the start of the year, plus $75,000 of profit, minus $50,000 of distributions, ends at $97,000.
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Monthly, after the bank accounts are reconciled. That is when uncollectible receivables, tax liabilities that are not clearing, unlabeled owner transfers and loan payments booked as expenses show up while they are still easy to fix.