Written by Maryam Ajorloo, CPA · Reviewed by Behdad Karimi Dermeni, CPA
You formed an LLC to keep your personal life and your business apart. Good instinct. LLC bookkeeping is what makes that separation real: your books are the paper trail (well, the digital trail) showing that the business is its own thing, with its own money, its own expenses, and its own numbers.
The good news is that it is a smaller job than the internet makes it sound. Once you know which of a few rules applies to your LLC, the rest is a routine. Stop tracking this in a spreadsheet you dread opening: start free for 30 days.
The one rule of LLC bookkeeping
Here is the rule of thumb: every dollar in your books should clearly belong to either the LLC or to you, and every time money crosses that line, you record it.
That is it. Most LLC bookkeeping problems (mixed-up expenses, a profit number that does not feel right, a tax preparer asking a dozen questions in March) trace back to money crossing the line without anyone writing it down. The rest of this guide is just how to make that rule easy to follow.
What your tax classification changes about your books
An LLC is a legal structure, not a tax category. The IRS decides how your LLC is taxed based on how many owners it has, and on any election you make. That classification changes which forms your bookkeeping feeds, and how you take money out.
Single-member LLC (default): The IRS treats it as a "disregarded entity," which means the LLC's income and expenses land on the owner's personal return, usually on Schedule C for a business. You still pay self-employment tax on the net profit, and you take money out as owner draws, not a paycheck.
Multi-member LLC (default): The IRS treats it as a partnership. The LLC files Form 1065 and each member receives a Schedule K-1 showing their share. Your books need to track each member's contributions and draws separately.
LLC taxed as an S corporation: An LLC can elect this using Form 2553. Now the owner-employee runs payroll, and the books need a salary line and a separate distributions line. If you are weighing this, our guide to how to pay yourself from an LLC or S-corp walks through each path.
An LLC can also change its default treatment by filing Form 8832. Whatever you are, the IRS overview of LLCs is worth a bookmark.
One thing all three share: your bookkeeping does the same job. It records income, records expenses, and keeps the owner's money separate from the business's money. The classification only changes what the year-end reports get used for.
How to set up LLC bookkeeping in 5 steps
Good news for anyone who dreads setup day: this takes an afternoon, and most of it is one-time.
Get an EIN and open a business bank account. An EIN is free from the IRS and gives your LLC its own tax ID. Then open a checking account (and ideally a card) in the LLC's name. Nothing makes bookkeeping harder than a single account where groceries and client invoices share a statement.
Choose your accounting method. Most small LLCs use the cash method (income counts when it lands, expenses when they leave). Accrual counts income when you earn it. We break down which fits in cash vs accrual accounting.
Set up your categories. You do not need 80 of them. A clean short list (income, software, contractors, travel, and so on) beats a sprawling one. Our list of business expense categories is a good starting point.
Connect your accounts and capture receipts. Connect your bank so transactions arrive on their own, and forward receipts to Smart Shoebox (your receipt inbox) so they match up to the right transactions.
Put a monthly routine on the calendar. Bookkeeping done monthly takes minutes. Bookkeeping done in April takes a weekend and a strong coffee. The routine is below.
Owner contributions and draws are not income or expenses
This is the LLC-specific idea that trips up the most people. When you move your own money into the business, that is a member contribution, not income. When you take money out for yourself, that is a draw (or a distribution), not an expense.
Neither one changes your profit. Both change what you and the LLC each hold in the business. Record a $2,000 draw as an "office expense" and you have shrunk your profit by $2,000 for no reason, which is a very expensive way to feel organized.
If you pay for a business expense from your personal card, do not just skip it. Log the expense and record it as money you put in, so the LLC's books tell the true story. We cover the details in our guide to small business tax deductions.
A monthly routine for LLC accounting
LLC accounting is simply your bookkeeping plus a look at what it means: profit, cash, and what you owe. Here is a routine that fits in an hour or less:
Categorize the month's transactions. With an AI Bookkeeper doing the categorizing, this step is mostly done for you.
Match receipts to transactions. Anything without a receipt is easy to spot while the purchase is still fresh.
Tag owner transfers. Any money moving between you and the LLC gets labeled as a contribution or a draw.
Check your financial reports. Read the profit and loss statement for the month in your financial reports. If a number looks off, this is the cheapest moment to fix it.
If you are already behind, do not panic. Our catch-up bookkeeping guide shows how to get current one month at a time.
This is exactly what ReInvestWealth's AI Bookkeeper handles in the background, so your monthly routine shrinks to a quick read: see how it works.
The LLC bookkeeping mistakes we see most
After enough years of looking at other people's books, the same handful of mistakes keeps showing up. None of them is a disaster on its own. Together they turn a five-minute monthly job into a weekend project.
Recording a draw as an expense. It feels natural, since money left the account. It is also wrong, because it lowers your profit on paper.
Paying for business things from a personal card and never logging them. Those expenses are real write-offs. If they never reach your books, they never reach your return.
Skipping receipts because "the bank statement shows it." A statement shows that money moved. A receipt shows what it was for, which is what you need if anyone ever asks.
Waiting until year-end. Memory fades faster than you think. Nobody remembers what a $214 charge on March 9 was in January.
Ignoring the tiny stuff. Software subscriptions and bank fees are small individually and a real number in total.
Here is why the first one matters. Say a consulting LLC brings in $8,000 in a month, spends $3,000 on software, contractors, and travel, and the owner takes a $2,000 draw. The profit is $5,000. If the draw gets filed under "office expenses," the books show $3,000 of profit instead, and both the LLC and its owner look like they earned $2,000 less than they did. (If you run a consulting practice, our page on accounting for consultants goes deeper on that workflow.)
Paying contractors: what your books need for 1099s
If your LLC pays freelancers or contractors, your bookkeeping has one more job. The IRS asks businesses to report payments to non-employees on Form 1099-NEC, and to do that you need each contractor's name, address, and taxpayer ID.
The easy way to have them at tax time is to collect a Form W-9 before you send the first payment, and to categorize contractor payments separately from other expenses as they happen. Otherwise you spend January emailing people who changed jobs in June.
Multi-member LLCs: track each member's capital account
A single-member LLC has one owner, so the question "whose money is this?" has two possible answers. A multi-member LLC has more, and the books have to keep every member's share straight.
That is what a capital account does. It is a running record for each member of what they put in, their share of the profit, and what they have taken out. Your operating agreement decides how profit is split (equal shares, by ownership percentage, or something more custom), and your books should follow it exactly. At year-end, those numbers feed each member's Schedule K-1.
The practical habit: every contribution and every draw is labeled with the member it belongs to. A transfer that just says "owner draw" is a puzzle for whoever prepares the partnership return.
Set aside money for estimated taxes
Here is a surprise for new LLC owners: nobody withholds income tax from your draws. Sole proprietors, partners, and S corporation shareholders generally make estimated tax payments during the year using Form 1040-ES if they expect to owe $1,000 or more when they file, according to the IRS guide to estimated taxes.
Your books help in a simple way: the profit number on your monthly report is what those estimates are built from. How much to set aside depends on your situation (income level, state, and whether you have an S election), so treat this as a conversation for your accountant. But you cannot have that conversation without a current profit number.
Why clean books protect your liability shield
An LLC limits your personal liability, but the protection is not automatic forever. When owners treat the LLC like a personal wallet (paying home bills from the business account, no records of what moved where), a court may decide the LLC is not really separate from you. Lawyers call this "piercing the corporate veil," and mixed-up money is one of the things they look at. The rules vary by state, and this is a legal question rather than a tax one, so talk to an attorney about your situation.
What we can say as CPAs: books that show a clear line between you and the LLC are the easiest way to show the separation is real. Think of them as the receipts for your liability protection.
How long to keep your LLC's records
The IRS gives a set of time periods, and the right one depends on the record. According to the IRS guidance on how long to keep records:
3 years is the general rule for records supporting a return.
6 years if you did not report income that was more than 25% of the gross income on your return.
7 years if you claim a loss from worthless securities or a bad debt deduction.
4 years for employment tax records (relevant if you run payroll).
Indefinitely if you never filed a return or filed a fraudulent one.
Property records should be kept until the period of limitations ends for the year you dispose of the property.
The simplest approach is to keep digital copies of everything and stop worrying about which drawer the 2023 receipts live in. The IRS also has a page on what records to keep.
Practical tips
Pay business expenses from the business account, every time. It is the single habit that prevents the most cleanup.
Move owner draws on a schedule. A regular monthly draw is easier to record (and to plan around) than random transfers.
Hand your accountant clean books. Your CPA can spend their time on tax planning and advice instead of sorting transactions. If your accountant works with ReInvestWealth, you can share the same books with them.
If you are new to the whole thing, our bookkeeping for beginners guide covers the fundamentals.
Frequently asked questions
Do I need a separate bank account for my LLC?
Federal tax law does not require one, but it is close to essential in practice. A separate account keeps your records clean, makes your expenses easy to prove, and supports the separation between you and your LLC. Opening one is a one-time task that saves every month after.
Does a single-member LLC file its own tax return?
Generally not for federal income tax. A single-member LLC is a disregarded entity by default, so its income and expenses are reported on the owner's personal return, usually on Schedule C. The LLC does use its own EIN for employment tax purposes if it has employees.
What is the difference between LLC bookkeeping and LLC accounting?
Bookkeeping is recording every transaction: income, expenses, contributions, and draws. Accounting is reading what that record says (profit, cash flow, tax position) and using it to make decisions. Good bookkeeping is what makes the accounting easy.
Can I handle my LLC's bookkeeping myself?
Yes, many owners do, especially with software that categorizes transactions and matches receipts automatically. If you have payroll, multiple members, or an S corporation election, it is worth having a CPA review your books at least once a year.
Get your LLC's books off your plate
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A note from our CPAs: This guide is educational and covers the general rules for U.S. LLC owners. Tax situations vary, so for advice on your specific circumstances, talk to your accountant. (If they use ReInvestWealth, they'll already have clean books to work from.)
Written by Maryam Ajorloo, CPA
Maryam Ajorloo is the co-founder of ReInvestWealth and a CPA who specializes in small business tax and everyday bookkeeping. She helps entrepreneurs keep clean, audit-ready books and make sense of write-offs, filing deadlines, and the numbers behind their business. Read more · Connect on LinkedIn
Reviewed by Behdad Karimi Dermeni, CPA
Co-founder of ReInvestWealth and a founding community builder at Stripe. Behdad built ReInvestWealth to give smart, busy entrepreneurs CPA-level accounting without the CPA-level price tag. Read more · Connect on LinkedIn
