Bookkeeping Basics Every New LLC Owner Should Know

The LLC exists on paper. The money feels personal. That mix is how a new owner loses the profit number and walks into tax season with a stack of guesses.

Bookkeeping basics for an LLC replace those guesses with a record you can explain. You see what came in. You see what went out. You can show both.

Why a new LLC needs books from the first month

Bookkeeping is the record of every financial transaction. Bench describes it as tracking company transactions so you can see where money comes from and where it goes.

Forbes Advisor splits the work into two jobs. Bookkeeping records the transactions. Accounting studies those records and turns them into reports and decisions.

SCORE puts bookkeeping first. You categorize the transactions. You organize them. You record them. You balance them. That sequence is what lets you read the financial health of the business. Those steps are the small business bookkeeping basics a new LLC can run from the first month.

The IRS is plain about the duty. Everyone in business must keep records. Publication 583 says good records help you do five things.

• Watch whether the business is improving.
• Prepare an income statement and a balance sheet.
• Separate business receipts from money that is not business income.
• Capture deductible expenses before the memory fades.
• Support the income and the expenses and the credits on your tax return.

An income statement shows income and expenses for a period of time. A balance sheet shows assets and liabilities and your equity on a given date. The IRS notes that these statements help you manage the business. The same statements help when you talk with a bank or a creditor.

SCORE adds the cost of skipping this work. A written record is the system. Memory is a weak substitute. The first sign of trouble can arrive after the chance to fix it has passed. Small business records let you plan from facts. The same records help you prepare income taxes and apply for a loan.

The tax election decides which return the books must support

An LLC is formed under state law by filing articles of organization. IRS Publication 583 says the members are not personally liable for the debts of the LLC. Federal tax treatment is a separate choice.

The IRS may classify the LLC as a partnership or a corporation or an entity disregarded as separate from its owner. Publication 583 says that election decides which taxes you pay and which forms you file.

Match the books to the return you will file.

• A disregarded LLC is reported as part of the owner’s tax return. When that owner files as a sole proprietor, Publication 583 points to Form 1040 and Schedule C.
• A partnership files Form 1065. Each partner reports a share on Schedule E.
• A C corporation files Form 1120.
• An S corporation files Form 1120-S. Shareholders report their share on Schedule E.

The IRS says sole proprietors and partners and S corporation shareholders generally have to pay estimated tax if they expect to owe $1,000 or more when they file. Those owners figure and pay the estimate on Form 1040-ES. A corporation generally has to pay estimated tax if it expects to owe $500 or more. Corporations deposit those payments. Publication 542 covers that process.

Self-employment tax applies when net earnings from self-employment are $400 or more. You figure that tax on Schedule SE. The net earnings figure comes from the books.

This LLC bookkeeping guide stays with federal recordkeeping. State filing rules and sales tax records differ by state. These sources do not set one rule for every state.

Separate the LLC money before you record a single sale

Open the business checking account at the start. IRS Publication 583 calls that one of the first moves when you start a business. Keep the business account apart from your personal checking account.

Use the business account for business purposes. Deposit the day’s receipts into that account. Pay business costs from that account so each payment has a paper trail. Note the source of every deposit. A deposit might be business income. It might be personal funds you put in. It might be a loan. Note the type of expense on each payment.

Write a check to yourself when you take money out for personal use. Skip checks payable to cash. A cash check has no payee. If you must pay a business cost in cash, keep the receipt with the record. If no receipt exists, write an explanation at the time of payment.

Forbes Advisor reports the same first step from Ella Rivkin of ERPS Group. Set the business accounts apart from personal accounts on day one. Mixed accounts make expenses hard to sort. Mixed accounts hide the financial health of the business. Forbes Advisor recommends at least a business checking account and a business credit card so you can pay and get paid by card and by ACH.

SCORE focuses on the cleanup. A dedicated account means the monthly statements need less sorting. Bench adds the tax cost of a mixed account. A business expense can sit in a personal account and never reach the return. Your preparer can spend more time sorting the year. Both outcomes cost money.

Bench raises a further risk for an LLC or a corporation. A thin line between personal money and business money can put personal liability for business debts in play. Publication 583 states the starting point. Members are not personally liable for the LLC’s debts. The sources do not decide how a court would treat a specific case of mixed funds. The practical move is the one every source shares. Keep the accounts apart from the first deposit.

LLC accounting basics: pick a method and stay with it

An accounting method is the rule for when you report income and expenses. IRS Publication 583 says you choose it when you file your first income tax return. The books and the return must use the same method. The method has to show your income. The method treats each item the same way from year to year.

A later switch needs IRS approval in most cases. That includes a change in the overall method and a change in the treatment of any material item. Publication 538 is the IRS guide for how to request that approval.

If you own more than one business, you may use a different method for each one. Each business needs its own complete set of books.

Cash or accrual

Under the cash method you report income in the tax year you receive it. You deduct or capitalize expenses in the tax year you pay them.

Under an accrual method you report income in the tax year you earn it. Payment can arrive in a later year. You deduct or capitalize expenses in the year you incur them. Payment can happen in a later year.

The trade-off is timing.

SCORE says cash accounting gives the clearest view of cash on hand and helps you avoid a cash squeeze. Service businesses may choose cash. SCORE says businesses that sell goods elect accrual. An accrual business may owe tax on reported income that has not arrived. That business may claim an expense before the cash leaves.

Forbes Advisor reaches a similar split. Cash-basis accounting fits most small businesses because it reflects cash as it moves. Accrual-basis accounting fits larger corporations and manufacturers and service providers because it records the transaction when the work is delivered.

Bench notes why many small businesses stay on cash. The method is easier to maintain. You track cash you hold. You can skip a full receivables ledger and a full payables ledger. Accrual records an unpaid invoice as accounts receivable and an unpaid bill as accounts payable. Bench says that longer view fits a larger and more established business.

One inventory rule can override the preference. IRS Publication 583 says you must use an accrual method for purchases and sales when inventory is needed to account for your income. Inventory includes goods held for sale. Raw materials and supplies that become part of merchandise for sale count as inventory. Certain small business taxpayers may use the cash method and treat those items as materials and supplies that are not incidental. The publication points that exception to Publication 538. Confirm the exception before you choose.

Single-entry or double-entry

Publication 583 says you choose a single-entry system or a double-entry system.

Single-entry is the simpler system. It is built on the income statement. It can work for a small business at the start. You track the flow of income and expenses with a daily summary of cash receipts and with monthly summaries of cash receipts and disbursements.

Double-entry uses journals and ledgers. You enter each transaction in a journal. You then post it to ledger accounts. Those accounts show income and expenses and assets and liabilities and net worth. You close the income and expense accounts at the end of each tax year. Asset accounts and liability accounts and net worth accounts stay open.

Each double-entry account has a debit side and a credit side. Every transaction is a debit in one account and a credit in another. After you post the journal, total debits must equal total credits. A mismatch means an error you can find. The IRS gives a rent example. You debit rent expense for $780 and credit cash for $780.

Bench draws the same line for a new owner. Single-entry records each item once as income or as an expense. Assets and liabilities such as equipment and loans sit in a separate record. Bench says that fit is a new owner doing the books alone. Double-entry is the system most accounting software uses. A bookkeeper or an accountant uses that same system.

How to track income and expenses for an LLC

The IRS lets you choose any record system that shows your income and your expenses. The business you run shapes the records you need. A corporation keeps minutes of board meetings.

Your books must show gross income and your deductions and your credits. For most small businesses the business checkbook is the main source for those entries. Supporting documents sit behind the entries.

A journal is where you record each transaction from those documents. A ledger holds the totals from the journals and organizes them into accounts. Publication 583 says a small business system might include these pieces.

• The business checkbook
• A daily summary of cash receipts
• A monthly summary of cash receipts
• A check disbursements journal
• A depreciation worksheet
• An employee compensation record

The documents that make a number real

Purchases and sales and payroll and other transactions create supporting documents. The IRS list includes sales slips and paid bills and invoices and receipts and deposit slips and canceled checks. Keep them in order and in a safe place. Organize them by year and by type of income or expense.

Keep documents that show the amount and the source of gross receipts. Publication 583 lists cash register tapes and bank deposit slips and receipt books and invoices and credit card charge slips and Forms 1099-MISC and Forms 1099-NEC.

Keep documents that show the amount of an expense and that the cost was a business expense. The IRS list includes canceled checks and cash register tapes and account statements and credit card slips and invoices and petty cash slips.

A petty cash fund lets you make small payments without a check for every small amount. Write a petty cash slip each time and attach the receipt.

A payment record shows that money left the account. The IRS says a second document has to show that you incurred the cost. A statement can stand in for a missing canceled check when it shows the details the IRS requires.

• A check payment needs the check number and the amount and the payee and the date the bank posted it.
• An electronic transfer needs the amount and the payee and the date posted.
• A card payment needs the amount and the payee and the transaction date.

SCORE lists the records a business should be able to produce.

• Sales and operating results
• Fixed costs and variable costs and profit or loss and inventory levels and credit and collection totals
• A comparison of the plan with the actual result
• Financial statements and a profit and loss statement and a cash budget and a balance sheet
• Tax returns and reports to the government
• A way to spot employee theft or material waste or a recordkeeping error

The day-to-day files behind that list are concrete. SCORE names a daily summary of cash receipts and an expense ledger and an inventory record and an employee record and an accounts receivable record for credit sales.

A chart of accounts you will understand in December

Every transaction needs a category. Forbes Advisor calls the chart of accounts the financial encyclopedia of the business. It covers expenses and revenue and liabilities and assets. The point is to sort each item so you can track it later. Forbes Advisor notes that the categories get refined as the business runs.

Bench groups transactions into five types. Those types are assets and liabilities and equity and revenue and expenses. The line items under those types are your accounts. The right accounts follow your work. Bench uses a simple test. An unmarked lunch receipt means little six months later. A category tells you whether the meal was for a client.

Talk with a bookkeeper or a CPA when you build the first list. Bench recommends that conversation so the accounts match your field and match what your preparer expects.

A deductible expense must be ordinary and necessary. IRS Publication 583 defines both words. Ordinary means common and accepted in your field. Necessary means helpful and appropriate for the business. Publication 583 says the expense can qualify without being indispensable. Bench adds the limit that follows. An ordinary and necessary cost can be a partial deduction. Bench uses a dining-table example. The full rent stays personal.

Home office costs have their own tests in Publication 583. The business use must be exclusive and regular and for your trade. The space has to qualify in one of three ways. It is your principal place of business. It is a place where you meet clients in the normal course of the business. It is a separate structure used for the business. Exclusive means that specific area is for the business. A room can qualify. Another identifiable space can qualify. A permanent partition is optional. Personal use of that same space fails the test. Storage of inventory and a daycare facility are exceptions the publication points to Publication 587.

The simplified method is one way to figure the deduction. Publication 583 says you multiply $5 by the business square footage. The area is capped at 300 square feet. Publication 583 says the deduction may be limited after you meet the tests. Publication 587 is the full guide.

Start-up costs and organizational costs have a specific rule for a new entity. Publication 583 says you can elect to deduct up to five thousand dollars of business start-up costs and up to five thousand dollars of organizational costs. Each five-thousand-dollar deduction shrinks by the amount those costs exceed fifty thousand dollars. Costs above the deducted amount are amortized. Advertising and travel and surveys and training before you open are examples of start-up costs. The publication treats them as capital expenses unless you elect this treatment. Form 4562 is where the IRS sends you for the amortization details.

If you hold assets such as furniture or equipment or machinery, the records have to support depreciation and a later sale. Publication 583 says those records should show when and how you bought the asset. They should show the purchase price and any improvements. They should show the section 179 deduction and the depreciation you took. They should show how you used the asset. They should show the sale price and the expenses of the sale.

A rhythm for bookkeeping for a new LLC

Publication 583 favors a daily habit. Record expenses when they occur. Identify the source of each receipt. A monthly habit sits beside that. Reconcile the checking account each month.

SCORE lays out a checklist you can adopt as new business bookkeeping.

• Each day. Track cash on hand and money coming in and money going out.
• Each week. Record billings and payments. Update payroll if you have it.
• Each month. Balance the accounts. Review payroll and payroll taxes. Review the month-end balance sheet.
• Each quarter. Review profit and loss projections. Make quarterly payroll payments and tax payments.
• Each year. Analyze year-end inventory. Complete the tax forms. Review the year-end financials.

Bench suggests you reserve one block of time each month if a daily pass feels unrealistic. Use that block to enter missing transactions and reconcile the bank statement and read last month’s statements. A fee the bank charged in March is easier to question in March. The same fee is buried by the time you assemble the return.

What a monthly reconciliation proves

When the bank statement arrives, the statement and the checkbook and the books need to agree. They can differ for two plain reasons. The statement includes a bank charge you have not entered. Or the statement omits a deposit or a check that cleared after the statement date.

Publication 583 says the reconciliation does three jobs. You confirm how much money is in the account. You enter bank charges so the books show the right balance. You correct errors in the statement or the checkbook or the books.

Check your own math first. Start with last month’s checkbook balance. Add the month’s deposits. Subtract the month’s payments. That result should match the checkbook balance at month-end. If it does not, compare check amounts with the disbursements journal and compare deposits with the cash receipts record.

Then match the statement.

1. Compare each deposit on the statement with the checkbook. Note every amount that differs.
2. Compare each cleared check number and amount with the checkbook. Mark the checks that cleared. Unmarked checks are outstanding.
3. Update the checkbook and the journals for bank charges and for any amount you recorded wrong.

The adjusted statement balance should equal the adjusted checkbook balance. A remaining gap means you repeat the steps until you find the error.

Three reports that show LLC financial basics

The books pay off when you read them. Three reports cover the questions a new owner asks.

The income statement answers whether the period produced a profit. The IRS defines it as income and expenses for a span of time. SCORE puts a profit and loss review on the quarterly list and a full review on the year-end list.

The balance sheet answers what the LLC owns and what it owes and what remains as equity on one date. SCORE puts that review on the monthly list. In a double-entry system the IRS says you close income and expense accounts each tax year and you leave asset and liability and net worth accounts open. The balance sheet is the standing picture of those open accounts.

Cash flow answers whether the cash on hand can carry the next bills. SCORE calls the cash flow statement a concise picture of financial health because it covers money received and money owed and money paid. The direct method looks at net cash flow. The indirect method includes non-cash items such as a purchase on credit. Forbes Advisor lists a cash flow review among the standard bookkeeping tasks. The same list includes bank transactions and reconciliation and invoices and bills and payroll and payables and receivables.

Bench frames the questions these reports answer. Are sales up? Are costs too high? Can you cover payroll next month? Is cash increasing or decreasing?

Those same reports are what a lender asks to see. Bench says financial statements are a common prerequisite for a business loan or a line of credit or seed investment. The reader is looking for revenue and cash flow and assets and liabilities. Publication 583 makes the same point about banks and creditors. SCORE adds that records support a loan application and a plan built on numbers.

How long to keep small business records

Keep records for as long as the tax law may need them. IRS Publication 583 says that means you keep support for an item of income or a deduction until the period of limitations for that return ends.

That period is the time when you can amend a return to claim a credit or a refund. That same period is the time when the IRS can assess more tax. Returns filed before the due date count as filed on the due date. The table below is Table 3 from Publication 583.

Employment tax records follow a separate clock. Keep them for at least four years after the date the tax becomes due or is paid, whichever is later. Publication 15 is the IRS guide for those records.

Property records last through the year you dispose of the property and then through that year’s limitation period. You need them to figure depreciation and to figure gain or loss on the sale. A nontaxable exchange can carry the old basis forward. Publication 583 says that basis matches the property you gave up plus any money you paid. Keep both sets of records until the limitation period ends for the year you dispose of the new property in a taxable disposition.

Keep copies of the returns you file. The IRS says those copies help you prepare the next return and help you compute an amended return.

Paper and electronic records follow the same retention rules. An electronic system has to index and store and preserve and retrieve and reproduce the records in a legible form. The IRS has to be able to reach a complete and accurate record. You may destroy the paper originals after you test that the electronic copies meet the IRS reproduction rules and you set procedures that keep the system in compliance. Any other records the law requires stay in your files. Revenue Procedure 97-22 covers the electronic storage rules.

A computerized bookkeeping system has a matching duty under Revenue Procedure 98-25. The records must reconcile with your books and your return. They must identify the source documents. You keep a description of the system and the chart of accounts. The description covers what the software does and the controls that protect the records from unauthorized changes.

Bench notes a practical reason to scan receipts. The IRS accepts digital records. Ink on a paper receipt fades.

Do the books yourself or bring in help

Both paths work. The fit depends on time and on how many moving parts the LLC has.

SCORE says the owner needs a bookkeeper and an accountant who match the business. Referrals can come from owners in your field or from SCORE or from a trade group or from people you trust. The bookkeeper handles the daily entries and needs enough experience to keep the records. The accountant helps you decide which records to keep and how to keep them at a reasonable cost and how to manage cash flow. The same advice covers inventory levels and depreciation and current financial statements.

SCORE gives a time range that helps you judge the workload. A smaller scope can take a bookkeeper three to four hours a month to organize bank activity and reconcile the account. A heavier scope can take 10 to 15 hours a week. That heavier scope includes billing clients and writing vendor checks and preparing payroll and preparing sales tax forms.

Forbes Advisor describes the light end of do-it-yourself work. A spreadsheet can track client payments for a one-person business with one offer and few expenses. The same sheet is a weak fit for a longer product list and a pile of bills. For that heavier load, Forbes Advisor points to lightweight accounting software such as FreshBooks or QuickBooks Online or Zoho Books.

Forbes Advisor reports a strong lean from the experts interviewed for that guide. They favor a professional bookkeeper or a bookkeeping service. The reason is practical. A bookkeeper helps find and fix mistakes.

Bench splits the choice by stage. A side project on a tight budget can stay do-it-yourself after a short setup review with a CPA or a bookkeeper. Once the books keep sliding to the next month, it is time for help. Months of backlog are a catch-up project. That project is harder than a current month.

SCORE makes a cost point that rewards the owner who stays current. Clean transactions lower the fee to sort a year of bank activity. With a bookkeeper and orderly books, an enrolled agent or a CPA may be needed for the tax return itself. A startup can use one introductory meeting to learn what the books should include. SCORE says to bring that help in before the year piles up. An IRS exam is a poor moment to build the system.

The IRS standard applies when you use software. Publication 583 says a software package can be helpful and can require little bookkeeping knowledge. You have to produce legible records that support the return and show the right tax. If you set up QuickBooks Online, use the first month to match each category to a real expense and to tie each entry to a receipt. Bench warns that a cloud tool creates stress when the setup is wrong and the error runs for a year. A review with your preparer in that first month prevents the cleanup.

Mistakes that show up at tax time

These are the gaps the sources flag. Each one is easier to prevent than to rebuild.

• Mixed money. A personal card pays a vendor. The receipt never reaches the books. The deduction disappears.
• A late start. Bench notes that a year-end pile hides bank errors until the fee is old. Publication 583 wants the entry when the expense happens.
• Payment without purpose. A bank line proves you paid. The IRS wants the invoice or the receipt that shows a business cost.
• A silent method change. You start on cash and then record unpaid invoices as income. That is a new method. Publication 583 says a change needs approval in most cases.
• One set of books for two businesses. Each business needs its own records. Each one can use its own accounting method when that method shows income.
• Checks to cash. The payee is missing. The business purpose is a memory.
• A skipped reconciliation. Bank charges stay out of the books. The balance you manage is the wrong balance.
• Estimated tax left until filing day. The federal income tax is pay as you go. The $1,000 and $500 thresholds above are the IRS triggers for estimated payments.
• Asset files that start at the sale. Depreciation and gain both depend on the purchase record you kept from the beginning.
• A home office claim for a mixed-use room. Personal use of the same space fails the exclusive use test in Publication 583.

Start the books this month

You can start bookkeeping for the business before the next client payment lands.

1. Confirm how the LLC is taxed and which federal return that election requires.
2. Apply for an EIN if this entity must have one. The IRS issues the number online once the application is validated. Use one EIN for the entity. The IRS bars a Social Security number as a stand-in for an EIN on a return. If the return is due before the EIN arrives, write “Applied for” and the date you applied.
3. Open the business checking account. Deposit business receipts there. Pay business costs from there.
4. Choose cash or accrual. Write the choice down. Use it in the books and on the first return. Check Publication 538 first if you hold inventory.
5. List the income accounts and the expense accounts you will use this year. Keep the list short enough to apply the same way every time.
6. File each receipt and invoice and deposit slip by year and by category.
7. Record each transaction on the day it happens. Reconcile on the day the statement arrives.
8. Read the income statement and the balance sheet once the first month closes.
9. Book one review with a bookkeeper or a CPA before the first quarter ends. Ask whether the categories and the method and the receipts will support the return.

That sequence is the whole job at the start. The books show the profit. The account stays clean. The return has a document behind every line. The next month repeats the same week.