Bookkeeping for an LLC: Accounts, Reconciliation, and Year-End

Good bookkeeping for an LLC does two jobs at once: it keeps the liability shield between your business and your personal assets intact, and it produces the numbers your tax returns need. Both jobs rest on the same discipline — every dollar in and out of the business runs through dedicated business accounts, gets recorded against a source document, and lands in a category that will still make sense at tax time. Skip the discipline and you risk two very different problems: a court treating your LLC as your alter ego, and the IRS treating your return as unsupported.

Keep Business and Personal Money Completely Separate

The whole reason to form an LLC is the liability shield. Courts can strip that shield through what’s known as “piercing the corporate veil” when they find an LLC is really just an alter ego of its owner, and mixing personal and business money is one of the most common reasons they take that step.1Legal Information Institute. Piercing the Corporate Veil Paying your personal car insurance from the business checking account, or depositing a client check into your personal savings, gives a creditor exactly the ammunition they need.

Open a dedicated business bank account and a business credit card, and run every LLC transaction through them. If you move personal money into the business or take money out for yourself, record it immediately as an owner contribution or distribution rather than letting it sit as a mystery transfer. Every expense needs a receipt or invoice that documents its business purpose and ties back to the bank statement. That paper trail is what proves the LLC is genuinely separate if anyone challenges it.

Choose Cash or Accrual Before You Record Anything

Your accounting method decides when you recognize income and expenses. The IRS allows several, but two matter for most LLCs.2Internal Revenue Service. Publication 538, Accounting Periods and Methods

  • Cash method. You record income when payment actually arrives and deduct expenses when you actually pay them. It aligns with how you think about your bank balance and works well for service businesses.
  • Accrual method. You record income when you earn it and expenses when you incur them, regardless of when cash moves. Invoice a client in December, get paid in January, and the income belongs to December.

Most LLCs qualify for the cash method. The IRS requires accrual only when a business exceeds the gross receipts threshold (indexed annually, currently in the range of $30 million in average annual receipts over three years) or maintains inventory as a core part of its business.2Internal Revenue Service. Publication 538, Accounting Periods and Methods A consulting firm, a freelance design studio, or a small trades LLC almost certainly can use cash. Pick one and stick with it; switching later requires filing Form 3115.

Set Up a Double-Entry System and a Useful Chart of Accounts

Single-entry bookkeeping (a running list of deposits and payments) is tempting for a solo operation, but double-entry is the system any LLC with growth plans needs. Every transaction touches at least two accounts: a debit in one, a credit in another. That keeps the equation Assets = Liabilities + Equity in balance and gives you a built-in error check that single-entry can’t offer. Modern platforms like QuickBooks, Xero, FreshBooks, and Wave are all built on double-entry logic. Pick based on transaction volume and whether you need inventory, payroll, or multi-user features. Which one matters less than using it consistently.

Build the Chart of Accounts for Your Tax Return

A chart of accounts is the master list of categories your software uses to sort transactions, covering assets, liabilities, equity, income, and expenses. Your software ships with defaults. Customize them. The highest-value move is breaking expense categories out to match tax deductions: separate airfare, lodging, and meals instead of one “Travel” bucket; separate supplies, software subscriptions, and internet instead of a generic “Office Expense.” That granularity means year-end tax prep pulls straight from your books rather than forcing you to re-sort transactions.

Treat Bank Feeds as a Draft, Not an Answer

Most software connects directly to your bank and credit card accounts and pulls transactions in automatically. The time savings are real, but so are the pitfalls. Duplicates show up when something you entered manually gets imported again a day later. Transfers between your own accounts can appear as both an expense and a deposit if you’re not watching. Automated categorization gets things wrong, especially before the software learns your patterns. Treat the feed as a starting point that needs human review.

The Daily Rhythm: Income, Expenses, and Reconciliation

Day-to-day bookkeeping is two tasks repeated constantly: recording money in and money out, both tied to source documents.

Revenue starts with an invoice or sales receipt. When payment hits the bank, you match the deposit to that invoice. Until it arrives, the amount sits in accounts receivable — money owed to you. On the expense side, every charge against the business account or card gets matched to a vendor invoice or receipt and assigned to the correct account. Attach the source document to the entry in your software. If you’re audited, you need to show exactly why each dollar left the account.

Accounts payable is the mirror: bills you owe but haven’t paid. Keeping that ledger current lets you catch early-payment discounts and avoid late fees. Together, receivable and payable give you a real picture of working capital.

Sales Tax Is Not Revenue

If your LLC sells taxable goods or services, the sales tax you collect belongs to the state or local authority. Your LLC is just holding it. Record collected sales tax as a liability in a “Sales Tax Payable” account, kept completely separate from income. When you remit, you reduce the liability. Treating sales tax as income is one of the fastest ways to end up short when the remittance is due.

Reconcile Every Month

The single most important recurring task is the monthly bank and credit card reconciliation. Pull the statement, compare every transaction to what your software shows, and resolve every discrepancy. Outstanding checks, bank fees you didn’t enter, duplicate imports, and miscategorized transactions all surface here. Don’t close the month until the statement balance and the software balance match to the penny. This is the process that catches fraud, errors, and omissions before they compound.

Owner Contributions and Draws Are Equity, Not Income

How you record money moving between you and your LLC is what makes LLC bookkeeping different from corporate accounting. Owner contributions and distributions are equity transactions. They land on the balance sheet, not the profit and loss statement. They are not income or expenses. Get this wrong and your reported profit is inflated or deflated, with tax headaches to match.

Single-Member LLCs

As the sole owner, you track two equity accounts: owner contributions and owner draws. Put $5,000 of personal savings into the LLC, and you debit Cash and credit Owner Contributions. Write yourself a check from the business account, and you debit Owner Draws and credit Cash. Neither entry hits Schedule C as income or expense.3Internal Revenue Service. Instructions for Schedule C (Form 1040) Your net business profit flows from Schedule C to your personal Form 1040, and you pay tax on that profit whether you withdrew the money or not.

Multi-Member LLCs Taxed as Partnerships

When the LLC has more than one owner and is taxed as a partnership, each member needs a separate capital account tracking contributions, allocated share of profits or losses, and distributions. The sum of all member capital accounts equals total equity on the balance sheet.4Internal Revenue Service. Partners Outside Basis

Multi-member LLCs often also make guaranteed payments — regular payments to members for services performed for the business, like a managing partner’s monthly draw for running operations. These are different from distributions. Guaranteed payments are deductible business expenses on the LLC’s Form 1065 and show up as taxable income on the receiving partner’s Schedule K-1.5Internal Revenue Service. IRS Form 1065, U.S. Return of Partnership Income6Internal Revenue Service. Schedule K-1 (Form 1065), Partners Share of Income, Deductions, Credits, etc. Distributions are not deductible and are generally a tax-free return of capital.

“Generally” has a limit. When cash distributed to a member exceeds that member’s adjusted basis in the partnership, the excess is taxed as a capital gain.7Office of the Law Revision Counsel. 26 U.S. Code 731 – Extent of Recognition of Gain or Loss on Distribution That’s why meticulous capital-account tracking matters. If the books don’t accurately reflect contributions, profit allocations, and prior distributions, basis can’t be calculated correctly, and someone ends up overpaying or underpaying.

Taxes Your Bookkeeping Has to Anticipate

Self-Employment Tax

If your LLC is taxed as a sole proprietorship or partnership (the default for most), the net profit flowing to your personal return is subject to income tax and to self-employment tax at a combined rate of 15.3%, which covers the Social Security and Medicare taxes an employer would otherwise split with you.8Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes)

The 15.3% breaks down to 12.4% for Social Security and 2.9% for Medicare. The Social Security portion applies only to net earnings up to $184,500 in 2026; Medicare has no cap.9Social Security Administration. Contribution and Benefit Base An additional 0.9% Medicare surtax kicks in on net self-employment income above $200,000 (single) or $250,000 (married filing jointly).10Internal Revenue Service. Instructions for Schedule SE (Form 1040) You calculate SE tax on 92.35% of net earnings and deduct half of the resulting SE tax when figuring adjusted gross income. Build the 15.3% into your profit estimates throughout the year, not as a December surprise.

Quarterly Estimated Payments

Because no employer is withholding, you owe quarterly estimated payments covering income tax and SE tax. The 2026 payment dates:

  • 1st quarter: April 15, 2026
  • 2nd quarter: June 15, 2026
  • 3rd quarter: September 15, 2026
  • 4th quarter: January 15, 2027

Pay with Form 1040-ES or through IRS electronic payment.11Internal Revenue Service. 2026 Form 1040-ES To avoid underpayment penalties, pay at least 90% of your current-year tax liability through estimates and withholding, or 100% of prior-year tax (110% if prior-year AGI exceeded $150,000). If you owe less than $1,000 after withholding and credits, no penalty applies.12Internal Revenue Service. Instructions for Form 2210 The underpayment penalty rate is currently 7%, calculated daily on each missed installment.

Payroll if You Have Employees

If your LLC has employees, or if you elect S corporation taxation (see below), payroll bookkeeping adds real complexity. Each run generates multiple entries: gross wages as expense; employee withholdings for federal and state income tax, and the employee’s share of Social Security and Medicare as liabilities; and the net paycheck. Then the employer’s matching Social Security and Medicare plus federal and state unemployment taxes get booked as a separate expense with matching liabilities.

Those payroll liabilities must be deposited with the IRS on a monthly or semi-weekly schedule based on your total tax liability, with totals reported quarterly on Form 941.13Internal Revenue Service. About Form 941, Employers Quarterly Federal Tax Return Late deposits trigger penalties that escalate quickly. Most LLC owners come out ahead using a payroll service rather than handling deposits manually.

1099s for Contractors

If your LLC pays independent contractors for services, you have information reporting obligations. Collect a Form W-9 from every contractor before the first payment. The W-9 gives you the taxpayer identification number and legal name you’ll need to file.14Internal Revenue Service. About Form W-9, Request for Taxpayer Identification Number and Certification Chasing W-9s in January, after you’ve already paid someone thousands of dollars, is universally miserable. Get the form before the first invoice.

For payments made in 2026, file Form 1099-NEC for any non-employee paid $2,000 or more during the year for services performed for your business.15Internal Revenue Service. 2026 Publication 1099 That threshold increased from $600 under legislation effective for tax years beginning after 2025. The filing deadline is January 31, both for the contractor copy and the IRS copy. Set up a report or tag in your software that flags contractors approaching the threshold.

Closing the Year

Before generating final reports, record the adjusting entries day-to-day bookkeeping misses. Under accrual, book revenue earned but not billed and expenses incurred but not paid. Under cash, adjustments are simpler but still necessary: correct misclassifications, reconcile owner equity, and make sure every bank and credit card account is reconciled through December 31.

Depreciation and Section 179

Equipment, vehicles, furniture, and other assets with a useful life beyond one year generally can’t be deducted in full the year you buy them. Standard depreciation spreads the cost over the asset’s useful life. Report it on Form 4562.16Internal Revenue Service. About Form 4562, Depreciation and Amortization

The exception is the Section 179 deduction, which lets you expense the full cost of qualifying assets in the year you place them in service.17Internal Revenue Service. Instructions for Form 4562, Depreciation and Amortization The 2026 Section 179 limit is $2,560,000. Most small LLCs won’t come close, which makes 179 a powerful tool for writing off equipment, computers, and vehicles in the year of purchase. You still need the purchase date, cost, and business-use percentage for each asset in your records.

The Two Reports Year-End Produces

The profit and loss statement summarizes revenue minus expenses for the year, producing the net income figure that flows to your tax return. The balance sheet is a snapshot of what the LLC owns, what it owes, and owners’ equity as of December 31. Together they tell you whether the business is profitable and whether it’s financially healthy.

Where the Numbers Go, by LLC Type

S Corporation Reasonable Compensation

LLCs that elect S corporation taxation pick up a bookkeeping requirement that catches many owners off guard. Owner-employees who perform services for the business must receive a reasonable salary, with payroll taxes withheld, before taking any distributions. Courts have consistently held that shareholder-employees who provide more than minor services owe employment taxes on appropriate compensation, even when they try to take all their income as distributions.22Internal Revenue Service. S Corporation Employees, Shareholders and Corporate Officers Your books need to clearly separate salary payments (payroll taxed) from distributions (not payroll taxed). Setting salary unreasonably low to minimize payroll taxes is one of the most heavily scrutinized positions on an S corporation return.

How Long to Keep the Records

Finishing the year’s books doesn’t mean you can delete anything. The IRS requires you to keep records supporting items on your return for as long as they could be relevant to a tax assessment. The general rule is three years from the date you filed. Underreport income by more than 25% of what’s shown on the return, and the IRS has six years. Don’t file at all, or file fraudulently, and there’s no time limit.23Internal Revenue Service. Topic no. 305, Recordkeeping

If your LLC has employees, employment tax records must be kept at least four years after the tax is due or paid, whichever is later.23Internal Revenue Service. Topic no. 305, Recordkeeping The safest practical approach is to keep everything — receipts, bank statements, invoices, payroll records, tax returns — for seven years. Digital storage makes it painless. The cost of keeping records too long is zero. The cost of not having a receipt the IRS asks for is whatever they decide to disallow.