Guide to building a balance sheet
TL;DR
- A balance sheet captures what your business owns (assets), owes (liabilities), and holds in owner equity (common stock, retained earnings, paid-in capital) at a single point in time.
- The balance sheet reveals liquidity, solvency, and financial trends. It also signals readiness for investors or lenders evaluating risk and creditworthiness.
- Balance sheet preparation requires gathering source records (bank statements, receivables, inventory, payroll, depreciation schedules, and a trial balance), then correctly categorizing items as current or non-current.
- On the balance sheet, total assets must equal total liabilities plus equity. Mismatches usually come from misclassified transactions, timing errors, omitted accounts, or incorrect depreciation and valuation.
- Monthly bank reconciliation, consistent accounting methods, and tools like QuickBooks or Xero improve accuracy and reduce manual errors.
A balance sheet is one of the most important financial statements for any business, offering a snapshot of a company’s financial position at a specific point in time. It provides a clear overview of what a company owns, what it owes, and the equity held by its owners.
For startup founders and small business owners, understanding how to create a balance sheet is essential for making informed financial decisions, securing funding, and managing business growth. This article will break down the key components of a balance sheet and walk you through the step-by-step process of building one from scratch.
Overview of a balance sheet
We previously covered the basics of reading and analyzing a balance sheet. As a refresher, a balance sheet is a financial report that outlines a company’s assets, liabilities, and shareholders’ equity.
Why is a balance sheet important?
A balance sheet isn’t just for external reporting — it also provides valuable insights into your company’s financial health. Investors and lenders rely on balance sheets to assess risk and determine creditworthiness. Founders and business owners can use them to evaluate their own risk and guide strategic decisions. An accurate balance sheet can help you:
- Understand liquidity: How much cash and easily accessible assets a company has to cover its obligations.
- Evaluate solvency: Whether a company can manage its liabilities and sustain itself long-term.
- Monitor financial trends: Comparing balance sheets over time reveals growth, risk factors, and changes in capital structure.
- Prepare for funding opportunities: A clean and accurate balance sheet increases credibility with investors and lenders.
Whether you’re building one for internal financial management or external reporting, getting the details right is critical.
Preparing to create a balance sheet
Before assembling a balance sheet, you need to gather the necessary financial data (it’s like preparing to file your taxes, but more fun). Here’s what you’ll need:
Assets
- Bank statements: Helps identify cash and cash equivalents.
- Invoices and accounts receivable: Reflect outstanding customer payments.
- Inventory records: These show the value of goods available for sale.
- Fixed asset records: Details about long-term assets like property and equipment.
- Prepaid expenses: Payments made in advance (e.g., insurance, rent).
Liabilities
- Loan agreements and credit balances: Identifies current and long-term debt.
- Payroll and benefits reports: Includes liabilities related to salaries and employee benefits.
- Accounts payable records: Details of outstanding payments to suppliers.
- Taxes payable: Any taxes owed but not yet paid.
Equity
- Retained earnings: Cumulative profits or losses retained in the business.
- Capital contributions: Funds invested by owners or shareholders.
Other helpful records
- Depreciation schedules: To account for the wear and tear of assets.
- Trial balance: Summarizes the balances of all ledger accounts for accuracy.
Not every item in this list will apply to every company. Accounting software like QuickBooks Online (QBO) or Xero can automate much of this process. If you use Mercury, our financial export tools can help streamline data collection.
Choosing your as-of date and closing the books before you build
A balance sheet reflects your company's financial position at a single point in time — the “as-of” date. Before you begin assembling the statement, two things need to be true: you've chosen the right date, and your books are fully closed for that period.
Choosing the as-of date
For most startups, the as-of date is the last day of a calendar month (January 31, February 28, etc.), quarter (March 31, June 30, September 30, December 31), or fiscal year end. The date matters because every transaction that happens after the as-of date belongs to the next period. A common mistake is building a balance sheet while transactions from the target period are still being posted, which produces inaccurate results.
Month-end adjustments to complete before you start
Before pulling any account balances, make sure the following have been posted for the period:
- Depreciation: Record the monthly depreciation entry for all fixed assets. Skipping this overstates asset values and understates expenses.
- Accruals: Record any expenses incurred but not yet billed — payroll earned but not paid, unbilled contractor work, accrued interest. Skipping accruals understates liabilities.
- Inventory count: If you carry physical inventory, reconcile the physical count to your accounting records and post any adjustments. Stale counts overstate assets.
- Prepaid expense amortization: Reduce prepaid balances by the portion consumed in the period. A 12-month insurance policy paid up front should show one month of expense each period.
- Deferred revenue: Recognize the portion of deferred revenue that has been earned in the period. For a SaaS business, this means moving the monthly portion from deferred revenue (liability) to revenue (income).
Reconcile subledgers before finalizing
Before building your balance sheet, confirm that:
- The bank balance per your accounting software matches the bank statement (or the reconciling items are documented)
- Accounts receivable per the AR subledger matches the GL balance
- Accounts payable per the AP subledger matches the GL balance
- Inventory per the inventory module matches the GL balance
These reconciliations catch most balance sheet errors before they become problems. If your books are in QuickBooks or Xero, the bank reconciliation tool handles the bank match; AR and AP aging reports confirm the subledger totals.
Step-by-step guide to building a balance sheet
Step 1: List and categorize assets
List every asset your company owns as of the balance sheet date, then sort each into current or non-current. The dividing line is 12 months: current assets are expected to convert to cash within a year; non-current assets extend beyond that window.
Current assets
Asset | Current? | Note |
|---|---|---|
Cash and cash equivalents | Yes | Includes checking, savings, and money market accounts. Excludes restricted cash — see below. |
Accounts receivable | Yes | Amounts owed by customers for goods or services already delivered. Reduce by any allowance for doubtful accounts if collection is uncertain. |
Inventory | Yes | Physical goods held for sale, valued at the lower of cost or net realizable value. See the valuation callout below for costing method choices. |
Prepaid expenses | Yes (usually) | Only the portion expiring within 12 months. A 3-year lease deposit or long-term prepaid belongs in non-current. |
Short-term investments | Yes | Marketable securities expected to be converted to cash within 12 months. |
Restricted cash | Current or non-current | Cash held as collateral or under legal restriction. Classify as non-current if the restriction extends beyond 12 months. |
Non-current assets
Asset | Non-current? | Note |
|---|---|---|
Property, plant, and equipment | Yes | Show at gross cost minus accumulated depreciation on the face of the balance sheet, or gross cost with a separate accumulated depreciation line. |
Intangible assets | Yes | Non-physical assets with economic value: patents, trademarks, customer lists, developed software meeting capitalization criteria. Cannot include self-created goodwill. Expense R&D and early-stage development costs as incurred. |
Goodwill | Yes | Only arises from an acquisition — the purchase price paid above the fair value of net identifiable assets. Cannot be self-created or estimated. |
Long-term investments | Yes | Equity stakes in other companies or investments not intended for near-term liquidation. |
Long-term prepaid | Yes | Lease deposits, long-term insurance, or any prepaid expense not expiring within 12 months. |
Subtotal current assets and non-current assets separately, then sum them to get total assets.
Step 2: List and categorize liabilities
List every obligation your company owes as of the balance sheet date, then sort each into current or non-current. Current liabilities are due within 12 months; non-current liabilities extend beyond that window.
Current liabilities
Liability | Current? | Note |
|---|---|---|
Accounts payable | Yes | Amounts owed to vendors for goods or services already received. Pull from your AP aging report. |
Accrued expenses | Yes | Costs incurred in the period but not yet billed or paid — payroll earned but unpaid through period-end, accrued contractor fees, accrued interest. These are liabilities even without an invoice in hand. |
Sales tax payable | Yes | Sales tax collected from customers but not yet remitted to the relevant tax authority. A frequent omission for ecommerce companies. |
Deferred revenue (current portion) | Yes | Payment received from customers before the service has been delivered. For a SaaS company, annual subscription payments received upfront are deferred and recognized monthly as the service is provided. Only the portion to be earned within 12 months is current. |
Customer deposits | Yes | Advance payments held as deposits on future orders — a liability until goods or services are delivered. |
Current portion of long-term debt | Yes | The principal installments due within 12 months on an otherwise long-term loan. Split from the non-current balance. |
Credit card balances | Yes | Outstanding balances on business credit cards at period end. |
Non-current liabilities
Liability | Non-current? | Note |
|---|---|---|
Long-term debt | Yes | Principal due beyond 12 months. Separate the current portion into current liabilities. |
SAFE notes | Yes (usually) | A SAFE (Simple Agreement for Future Equity) is a common seed-stage financing instrument. SAFEs are typically classified as a non-current liability or mezzanine equity until a conversion event — confirm the appropriate treatment with your accountant, as classification depends on the specific instrument terms. |
Convertible notes | Split | Separate the portion due within 12 months (current) from the remainder (non-current). |
Deferred revenue (non-current portion) | Yes | The portion of deferred revenue that will be earned more than 12 months from the balance sheet date. |
Deferred tax liabilities | Yes | Future tax obligations created when tax and book accounting treatment diverge — for example, when tax depreciation accelerates faster than book depreciation. The timing difference creates a future obligation recorded here. |
Long-term lease obligations | Yes | Operating or finance lease liabilities extending beyond 12 months, recognized under ASC 842. |
Subtotal current liabilities and non-current liabilities separately, then sum them to get total liabilities.
Step 3: Calculate shareholders’ equity
Shareholders' equity is what remains for the owners after all liabilities are settled. For most startups the equity section is relatively simple, but getting the components right matters — equity is the balancing figure that makes the accounting equation work.
Equity components
Components | What it represents | Note |
|---|---|---|
Common stock | The par value of shares issued to founders and investors | Par value is typically $0.001 per share for Delaware C corporations — the total dollar amount is usually negligible. |
Additional paid-in capital (APIC) | The amount paid for shares above par value | If a founder pays $50,000 for 1,000,000 shares at $0.001 par, $1,000 goes to common stock and $49,000 goes to APIC. For most startups, APIC represents the bulk of capital contributed. |
Retained earnings / accumulated deficit | Cumulative net profits or losses since founding, minus any dividends paid | For startups operating at a loss, this figure will be negative and is typically labeled “accumulated deficit.” It flows from the bottom line of your P&L, carried forward cumulatively from the company's founding. |
Preferred stock (if applicable) | Shares with specific rights or preferences, typically held by investors in priced rounds | Only present after a priced equity round. Show at par value; any amount paid above par goes to APIC. |
Treasury stock (if applicable) | The cost of shares the company has repurchased from shareholders | Treasury stock reduces total equity and is shown as a negative number. Most early-stage startups will not have treasury stock. |
Calculate total shareholders' equity
Add all positive components and subtract any negative ones:
Shareholders' equity = Common stock + APIC + Retained earnings (or − Accumulated deficit) − Treasury stock
For a startup carrying an accumulated deficit, the result will often be a negative number. This is normal and expected — see the worked example below for context.
Cross-check using the accounting equation
As a final validation:
Shareholders' equity = Total assets − Total liabilities
If this matches your calculated equity figure, your balance sheet should balance. If it doesn't, work through the troubleshooting section to find the discrepancy.
Valuation choices that move your numbers
How you value certain assets isn't just a technical detail — it directly affects the totals on your balance sheet and your reported equity. Four choices matter most for startups:
1. Inventory costing method (ecommerce and physical product companies)
If you sell physical goods, you need a consistent method to assign cost to inventory on hand:
- FIFO (first in, first out): Assumes the oldest inventory is sold first. In a rising-cost environment, FIFO produces a higher ending inventory value on the balance sheet.
- Weighted-average cost: Blends the cost of all inventory on hand into a single average cost per unit. Produces smoother results and is simpler to administer.
Whichever method you choose, apply it consistently. Switching methods mid-year requires a formal accounting change and potential restatement.
2. Capitalization vs. expensing (software and R&D)
For technology companies, the treatment of software development costs has a significant balance sheet impact:
- Expense immediately: All development costs flow through the P&L as expenses in the period incurred. Conservative and standard for most startups in the research or early development phase.
- Capitalize and amortize: Under GAAP (ASC 350-40), costs incurred in the application development stage of internal-use software may be capitalized as an intangible asset and amortized over the useful life. Capitalizing creates a higher asset balance and smoother expense recognition, but requires clear documentation of development phase.
Most seed-stage startups expense all development costs. Once you have a dedicated engineering team building a clearly defined internal-use platform, discuss capitalization criteria with your accountant.
3. Impairment of intangibles and goodwill
If you carry intangible assets, you're required to assess them periodically for impairment — whether the carrying value on the balance sheet still reflects the asset's recoverable value. If a product line is discontinued or an acquisition underperforms, the asset may need to be written down. Impairment charges reduce the asset balance and flow through the P&L, directly reducing equity.
4. Depreciation method for fixed assets
Straight-line depreciation spreads the cost of an asset evenly over its useful life; accelerated methods front-load the expense. Your choice doesn't change total cost, but it does change what appears on the balance sheet in each period. Most startups use straight-line for simplicity.
Live example: Fieldstack SaaS balance sheet as of December 31, 2024
Fieldstack is an 8-person B2B SaaS startup that also sells a small line of physical accessories. It raised a $500,000 SAFE in Q3 2024. Here's how source documents roll into the finished balance sheet.
Step 1: Map source documents to line items
Source document | Line item populated | Amount |
|---|---|---|
Mercury bank statement (reconciled) | Cash | $182,000 |
AR aging report (3 open December invoices) | Accounts receivable | $15,000 |
Inventory count + accounting records | Inventory | $8,000 |
Prepaid schedule (annual Figma license, 12 months remaining) | Prepaid expenses | $3,000 |
Fixed asset register ($20K equipment less $4K accumulated depreciation) | Equipment, net | $16,000 |
AP aging report (3 open vendor invoices) | Accounts payable | $6,000 |
Payroll report (Dec 16–31 earned, paid Jan 5) | Accrued expenses | $5,000 |
Sales tax report (December collections, remit January) | Sales tax payable | $1,000 |
Subscription billing records (3 annual plans billed Dec for Jan–Dec 2025) | Deferred revenue | $18,000 |
SAFE agreement (unconverted as of date) | SAFE note payable | $500,000 |
Cap table (founder shares at $0.001 par) | Common stock | $1,000 |
Cap table (founder cash investment above par) | Additional paid-in capital | $49,000 |
Cumulative P&L since founding | Accumulated deficit | ($356,000) |
Step 2: Assemble the balance sheet
Here's what the balance sheet would look like, broken down, for Fieldstack SaaS balance sheet as of December 31, 2024.
ASSETS
Current assets:
- Cash and cash equivalents: $182,000
- Accounts receivable: $15,000
- Inventory: $8,000
- Prepaid expenses: $3,000
Total current assets: $208,000
Non-current assets:
- Equipment, net of depreciation: $16,000
Total non-current assets: $16,000
TOTAL ASSETS: $224,000
LIABILITIES
Current liabilities:
- Accounts payable: $6,000
- Accrued expenses: $5,000
- Sales tax payable: $1,000
- Deferred revenue: $18,000
Total current liabilities: $30,000
Non-current liabilities:
- SAFE note payable: $500,000
Total non-current liabilities: $500,000
TOTAL LIABILITIES: $530,000
SHAREHOLDERS' EQUITY
- Common stock: $1,000
- Additional paid-in capital: $49,000
- Accumulated deficit: ($356,000)
Total shareholders' equity: ($306,000)
TOTAL LIABILITIES + EQUITY: $224,000 ✓
Step 3: Verify the equation
Total assets ($224,000) = Total liabilities ($530,000) + Total equity (−$306,000) ✓
Three things worth noting in this example:
- Negative equity is normal for a venture-backed startup. Fieldstack shows −$306,000 in total equity. This reflects that the company has been funding operations through investment and debt rather than retained profits — exactly what investors expect at this stage. What they're evaluating is cash position, burn rate, and growth trajectory, not positive equity.
- The SAFE appears as a non-current liability. Until the SAFE converts at a priced round or qualifying event, it's typically classified as a non-current liability. Founders sometimes omit SAFE notes from the balance sheet or record them as equity before conversion — both are errors. Confirm the appropriate treatment for your specific instrument with your accountant.
- Deferred revenue is a liability, not income. The $18,000 Fieldstack received in December for 2025 subscriptions doesn't appear on the December P&L. It sits on the balance sheet as an obligation to deliver service, and $1,500 per month will move from deferred revenue to recognized revenue throughout 2025.
What to do if your balance sheet doesn’t balance
If your balance sheet doesn't reconcile, use the flow below to diagnose the problem systematically rather than searching at random.
Symptom | Likely cause | Fix |
|---|---|---|
Assets exceed L + E by the exact value of a recent transaction | Transaction posted to one side only — entered as an asset without a corresponding liability or equity entry | Locate the transaction by amount in the GL; verify debit and credit entries; correct the posting |
Assets exceed L + E by the value of last-day sales | Revenue cut-off error — sales recorded correctly on the P&L but AR not yet posted to the balance sheet, or cash received but not yet deposited | Check the AR subledger for unposted invoices; reconcile the bank for deposits in transit |
Balance sheet is off by a round number (e.g., exactly $1,000) | Data entry transposition or rounding error | Search the GL for a transaction matching that exact amount; check for misplaced decimal points |
Negative equity that seems too largeNegative equity that seems too large | Opening retained earnings are wrong — prior period losses missing, or dividends recorded as P&L expenses rather than equity distributions | Reconcile retained earnings: beginning balance + net income − dividends = ending balance; compare to prior year's closing retained earnings |
Inventory balance is higher than expected | Inventory not written down for damaged or obsolete goods, or costing method inconsistently applied | Confirm physical count reconciles to the GL; apply lower-of-cost-or-NRV rule; verify the same costing method was used throughout the period |
Assets exceed L + E by an amount equal to depreciation | Depreciation entry posted to the P&L correctly but the credit to accumulated depreciation was missed | Post the missing credit to accumulated depreciation; verify against the fixed asset register |
No deferred revenue on the balance sheet despite upfront subscription billing | Annual subscription payments recognized as revenue in full at receipt rather than deferred | Identify all upfront subscription payments received in the period; move the unearned portion to deferred revenue; reduce revenue on the P&L accordingly |
No accrued expenses despite payroll spanning the period end | Accrual entries not posted | Calculate payroll earned but unpaid through the as-of date; post debit to payroll expense, credit to accrued payroll |
Tips for ongoing accuracy
- Reconcile bank accounts at the end of every month, not quarterly — most balance sheet errors originate in unreconciled bank items
- Use consistent accounting methods for depreciation and inventory costing period over period
- Compare the current balance sheet to the prior period and investigate any line item that moved by more than 10–15% without a clear business explanation
- Before finalizing, confirm that every number on the balance sheet traces to a specific source document: bank statement, AR aging, AP aging, payroll report, fixed asset register, or subscription billing records
Conclusion
A well-structured balance sheet is a powerful financial tool that clearly shows your company’s financial standing. By building one accurately and regularly reviewing it, you can make better business decisions, attract investors, and maintain financial stability.
While it’s possible to create a balance sheet manually, accounting software and financial integrations — such as those available with Mercury, QuickBooks, and Xero — can help simplify the process and reduce errors.
With a solid grasp of balance sheets, you’ll be better equipped to manage your company’s growth and financial health.
To get started building your balance sheet, check out our balance sheet template.
What is a balance sheet?
A balance sheet is a financial report that shows your company's assets, liabilities, and shareholders' equity at a specific point in time. It's a snapshot of your financial position.
What is the basic accounting equation for a balance sheet?
The accounting equation is assets = Liabilities + Equity. If your total assets don't equal your total liabilities plus equity, something needs to be corrected.
What financial documents do I need to create a balance sheet?
To create a balance sheet, you need bank statements, invoices, accounts receivable, inventory records, fixed asset records, loan agreements, payroll reports, accounts payable, taxes payable, retained earnings, and capital contribution records.
How do I organize assets on a balance sheet?
You’ll separate your assets into current assets (cash, accounts receivable, inventory, prepaid expenses) and non-current assets (property, equipment, long-term investments). You need to make sure any valuations are accurate.
How do I calculate shareholders' equity?
To calculate shareholders’ equity, you’ll add common stock, additional paid-in capital, and retained earnings, then subtract treasury stock (if applicable). You should verify the calculation by checking: Shareholders' Equity = Total Assets − Total Liabilities.
What should I do if my balance sheet doesn't balance?
If your balance sheet isn’t balanced, look for misclassified transactions, omitted accounts (especially accrued expenses and inventory adjustments), timing errors, and incorrect depreciation or inventory valuations.
Why is a balance sheet important for startups?
The balance sheet helps you understand your liquidity, evaluate solvency, and track financial trends over time. It also demonstrates financial credibility when pursuing funding with investors or lenders.
Can I use software to create a balance sheet?
Yes. Accounting tools like QuickBooks Online or Xero can automate much of the process and reduce errors. Mercury also offers financial export tools to streamline data collection.
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