What is a bookkeeper?
A bookkeeper is the person who records every transaction your business makes, puts each one in the right category, and checks the totals against your bank and card statements so the numbers can be trusted. Your accountant, your tax preparer, and your bank all work from what a bookkeeper produces. When the books are wrong, everything built on them is wrong too.
This guide covers what a bookkeeper does for a small business week to week, where the job stops, and the signs that it is time to stop doing it yourself.
The short version
- Bookkeeping is the ongoing recording and organizing of a business’s financial transactions. Accounting interprets those records. Bookkeeping creates them.
- A bookkeeper’s core responsibilities are recording and categorizing transactions, reconciling bank and card accounts, tracking what you owe and what you are owed, and closing the books each month.
- Most bookkeepers do not sign your tax return or represent you before the IRS. Only enrolled agents, CPAs and attorneys have unlimited rights to represent taxpayers.
- No license is required to work as a bookkeeper, so always ask who reviews the work.
- You likely need one when your books are more than a month behind, you have hired staff, or you collect sales tax.
What Is Bookkeeping?
Bookkeeping is the process of recording, categorizing and organizing every financial transaction a business makes, so that at any moment you can see what came in, what went out and what is left. It is the record keeping layer of your finances: accurate, complete and current, but not yet analyzed.
Every sale, supplier bill, payroll run, loan payment and owner withdrawal becomes an entry in the general ledger, the master record of the business. Each entry is assigned to an account in your chart of accounts, the list of categories such as sales, rent, supplies, wages, loans and owner’s equity.
Modern bookkeeping uses double entry, which means every transaction touches at least two accounts and the two sides must always balance. Pay a $1,200 supplier invoice, and your cash goes down by $1,200 while your accounts payable goes down by the same amount. If the two sides ever disagree, something was entered wrong, and that built in check is why double entry has lasted for centuries.
Books are kept on either a cash basis, where income is recorded when money arrives and expenses when money leaves, or an accrual basis, where income is recorded when it is earned and expenses when they are incurred. The method affects your tax return, so your accountant should choose which method, and your bookkeeper should apply it consistently.
Good bookkeeping is what makes three core reports possible: the profit and loss statement (did we make money?), the balance sheet (what do we own and owe?) and the cash flow statement (where did the cash actually go?). The IRS states the requirement plainly in its guidance on what kind of records to keep: “Your books must show your gross income, as well as your deductions and credits.” It also expects supporting documents such as invoices, receipts, deposit slips, and canceled checks behind the entries.
What Does a Bookkeeper Do Week to Week?
A bookkeeper keeps your financial records complete and accurate by recording and categorizing transactions, reconciling bank and credit card accounts, tracking bills and customer invoices, and closing the books each month. For a small business, that is steady work spread across the month rather than a scramble at tax time.
The U.S. Bureau of Labor Statistics describes bookkeeping clerks as often responsible for some or all of an organization’s general ledger, recording transactions, posting debits and credits, and producing financial statements and reports. Here is what that looks like in a typical small business.
Recording and Categorizing Transactions
Most small businesses now connect their bank and card accounts to accounting software such as QuickBooks Online or Xero, so transactions flow in automatically. The software then suggests a category for each one. A bookkeeper’s real job is deciding whether that suggestion is right.
It sounds minor until you look at what software cannot know:
- A deposit into the business account could be a customer’s payment, a refund from a supplier, or money the owner put in. Each is recorded differently, and only the first is income.
- A charge on the business card could be a legitimate expense or a personal purchase that needs to be recorded as an owner draw.
- A loan payment is part interest, which is an expense, and part principal, which simply reduces the loan.
That last one is worth an example. Say your truck loan payment is $850 a month, and in a given month $140 of it is interest. Only the $140 belongs on your profit and loss statement. The other $710 reduces the loan balance on your balance sheet. Book the whole $850 as an expense every month, and you overstate expenses by roughly $8,520 a year, which distorts your profit and gives your tax preparer a number they cannot rely on.
A bookkeeper also attaches or files the support for each entry. The IRS says purchase and expense records should identify the payee, the amount paid, proof of payment, and the date incurred.
Reconciling Bank and Credit Card Accounts
Reconciliation means matching every transaction in your books against the bank or card statement, line by line, until the ending balances agree. It is the most important control in small business bookkeeping, because it catches duplicate entries, missing transactions, bank errors, and occasionally fraud.
A balance in your software that has not been reconciled tells you very little. A reconciled balance tells you the books match reality. If you ask your bookkeeper one question, make it this: “Through which month are all of our accounts reconciled?” The answer should be the most recent month’s end, for every bank account, credit card, and loan.
Accounts Payable and Receivable
Accounts payable is what you owe: supplier bills, rent, software subscriptions, utilities. The bookkeeper enters bills as they arrive, tracks due dates so payments go out on time, and makes sure nothing is paid twice.
Accounts receivable are what customers owe you. The bookkeeper issues or tracks invoices, records payments as they arrive, and produces an aging report that shows who is 30, 60 or 90 days late. An invoice is far easier to collect at 30 days than at 120, which makes a receivables report you actually see each week one of the most useful things a bookkeeper produces.
Bookkeepers also track payments to independent contractors so the right Forms 1099 can be issued in January. The IRS reporting threshold for Form 1099-NEC is $2,000 for payments made in 2026, up from $600 for payments made before 2026, and it will be adjusted for inflation after that. Collecting a Form W-9 from each contractor before the first payment avoids a January scramble. If you are unsure whether someone should be paid as a contractor at all, our guide on how to classify your staff as contractors or employees walks through the tests.
Closing the Month
At month end, the bookkeeper finishes every reconciliation, records payroll from the payroll provider’s reports, posts any adjustments, reviews accounts that should be empty but are not, and produces the month’s reports. A clean close means you can open last month’s profit and loss statement early in the following month and trust what it says.
Here is how typical bookkeeper responsibilities fall across the year for a small business:
| How often | Task | Why it matters |
| Weekly | Categorize new bank and card transactions, enter bills, record customer payments | Keeps the backlog small while the details are still fresh |
| Weekly | Review the receivables aging report | Flags late payers before they become bad debts |
| Monthly | Reconcile every bank, credit card and loan account | Proves the books match the statements |
| Monthly | Record payroll, splitting gross wages, employer taxes and withholdings | Keeps payroll liabilities accurate |
| Monthly | Produce the profit and loss statement and balance sheet | Gives you numbers you can make decisions on |
| Monthly or quarterly | Prepare sales tax figures | In Illinois, Form ST-1 is due by the 20th of the month after the period ends, and the state assigns monthly filing when average monthly liability is over $200 |
| Quarterly | Review results with your accountant and support estimated tax payments | Avoids a surprise bill in April |
| Year end | Close the year, support 1099 filing, hand a reconciled trial balance and records to your tax preparer | Makes the return faster, cheaper and easier to defend |
When year end gets close, our small business owner’s guide to year end tax prep covers what your preparer will ask for.
What a Bookkeeper Does Not Do
A bookkeeper records what happened. In most small businesses, they do not set tax strategy, sign your tax return or represent you in front of the IRS. Knowing where the line falls keeps you from paying for the wrong help, or assuming you are covered when you are not.
Where Bookkeeping Ends and Accounting Begins
Think of bookkeeping as producing the raw material and accounting as putting it to use. An accountant takes the reconciled books and records adjusting entries such as depreciation and accruals, prepares financial statements a lender will accept, plans taxes ahead of deadlines, and advises on structural questions such as entity type.
Further up, a CFO uses the same numbers to forecast cash, test pricing, and plan for growth. Few small businesses need that full time, which is why the role is usually filled part time. Our article on what a fractional CFO actually does for a small business explains how that works.
Each role depends on the one below it. A forecast built on unreconciled books is a guess, however polished the spreadsheet looks.
Why Your Bookkeeper Usually Does Not File Your Return
Some bookkeepers can prepare a simple return, and anyone paid to prepare federal tax returns must hold a Preparer Tax Identification Number (PTIN) from the IRS. Preparing a return and standing behind it are different things, though.
According to the IRS guide to tax return preparer credentials, enrolled agents, CPAs and attorneys have unlimited representation rights, which means they can represent you in audits, collection matters and appeals. Preparers who take part in the IRS Annual Filing Season Program have limited rights that cover only returns they prepared and signed, and exclude collections and appeals. A preparer with a PTIN and no credential can prepare returns but cannot represent clients before the IRS for returns filed after 2015.
For most small businesses, the sensible setup is a bookkeeper who keeps the books, and a credentialed tax professional who prepares the return and answers any IRS notice. When both work in the same firm, the person signing your return already knows how the books were kept, and nothing is lost in a handover. That is why Koffex keeps accounting, tax services and IRS tax resolution under one roof.
Do You Need a Bookkeeper Yet?
Not every business needs one from day one. A sole proprietor with one bank account and a few dozen transactions a month can keep good books with software and dedicated hours on the calendar to manage the finances, provided this is done on a regular basis each month. The answer changes when the work stops getting done, or when the cost of getting it wrong goes up.
Signs You Have Outgrown Doing It Yourself
- Your books are more than a month behind, and catching up keeps moving to next weekend.
- You have hired your first employee, so payroll, payroll tax liabilities and filing deadlines now run through your books.
- You collect sales tax and file returns with the Illinois Department of Revenue on a fixed schedule.
- A bank, landlord, investor or buyer asked for financial statements, and you could not produce them within a week.
- Your tax preparer charges for cleanup every spring or sends back a long list of questions.
- Business and personal spending run through the same accounts and are hard to separate.
- You cannot say roughly how much cash you will have at the end of the month without logging in to the bank.
Doing it yourself is not free, either. In the real cost of doing your own accounting, we worked through the numbers: six hours a month adds up to 72 hours a year of owner time, before counting the cost of mistakes found late.
A Five-Minute Health Check for Your Books
Whoever keeps your books today, open your accounting software and check these five things. Any one of them not lining up is a sign the books need attention.
- Reconciliation date. Every bank, credit card and loan account should be reconciled through the most recent month’s end.
- Parked transactions. Accounts such as Uncategorized Expense, Uncategorized Income, or Ask My Accountant should be at or near zero. A growing balance means transactions are being set aside, not recorded.
- Undeposited Funds. In QuickBooks, a large or old balance here usually means customer payments were recorded but never matched to a bank deposit, which can mean income is counted twice.
- Balances with the wrong sign. A negative bank balance in the books when the real account is positive, or a negative accounts payable balance, points to entries posted in the wrong place.
- Opening Balance Equity. In QuickBooks, this account should normally be cleared to zero once the setup is complete. A balance that keeps growing means entries are going in without a proper offset.
If two or more of these items fail, you are probably looking at a cleanup project before ongoing bookkeeping can start, which is a normal and fixable situation.
In-House, Freelance or Outsourced Bookkeeping
Once you decide you need a bookkeeper, there are three common ways to get one. Each suits a different kind of business.
| Factor | In-house employee | Freelance bookkeeper | Outsourced accounting firm |
| How you pay | Salary, plus employer payroll taxes and benefits | Usually hourly or by the project | Usually, a fixed monthly fee based on scope |
| Best fit | High transaction volume and daily on site needs | Simple books needing light, regular support | Businesses that want bookkeeping, payroll and tax coordinated |
| Cover for time off | A gap unless someone is cross trained | Depends on one person | A team covers the work |
| Who checks the work | You, unless you also hire an accountant | Often no one | Usually a senior accountant, but always good to follow up |
| Tax and IRS support | A separate hire | A separate hire | Often available in the same firm |
In-house makes sense when there is a full-time job’s worth of work and you need someone physically present. For a sense of scale, the Bureau of Labor Statistics reports a median annual wage of $50,670 for bookkeeping, accounting and auditing clerks as of May 2025, and employer payroll taxes and benefits come on top of that.
A freelancer can work well for simple books, if you know who steps in when they are sick, on vacation or gone.
An outsourced firm suits businesses that want the bookkeeping reviewed by someone senior and connected to payroll and tax work without hiring for each role.
Whichever route you choose, three questions matter more than the label. Who reviews the work? What exactly is included? And what happens to your records if this person or firm stops working with you?
Credentials help here, because nobody needs a license to call themselves a bookkeeper, and the BLS notes certification is not usually required. The American Institute of Professional Bookkeepers awards the Certified Bookkeeper (CB) designation to people who pass a four-part national exam, sign a code of ethics, and have at least two years of full-time experience or 3,000 hours of part time or freelance work. Software certifications show fluency with a tool, which is useful but not the same as accounting judgment.
Industry experience matters too. A law firm handling client trust accounts, a nonprofit tracking restricted grants and a retailer filing sales tax each need a bookkeeper who already knows those rules, not one learning them on your books.
How Koffex handles bookkeeping
Koffex Accounting provides bookkeeping services for small and midsize businesses from our office in Crest Hill, Illinois, and remotely for clients across Illinois and the U.S. You work with one dedicated advisor, pay one flat monthly fee with no hourly billing, and your bookkeeping, payroll and tax work stay with the same firm. If your records are behind, we review and organize them before ongoing service begins. Book a free consultation to talk through what your business needs.
Frequently Asked Questions About Bookkeepers
What is a bookkeeper in simple terms?
A bookkeeper is the person who keeps a business’s financial records accurate and up to date. They record every sale and expense, sort each one into the right category, and check the totals against bank and card statements every month.
What does a bookkeeper do for a small business?
For a small business, a bookkeeper records and categorizes transactions, reconciles bank and card accounts, tracks bills and unpaid customer invoices, records payroll, and produces a monthly profit and loss statement and balance sheet. At year end, they hand your tax preparer clean, reconciled records.
Is a bookkeeper the same as an accountant?
No. A bookkeeper records financial transactions, while an accountant interprets them, prepares adjusted financial statements, plans taxes and often prepares returns. Many accountants can do bookkeeping, but most bookkeepers are not trained or credentialed to do an accountant’s work.
Does a bookkeeper need a license or certification?
No license is required to work as a bookkeeper in the United States, and the Bureau of Labor Statistics notes that certification is not usually required. Voluntary credentials exist, such as the Certified Bookkeeper (CB) designation from the American Institute of Professional Bookkeepers.
Can my bookkeeper do my taxes?
A bookkeeper can prepare federal returns for pay only if they hold a PTIN from the IRS. To represent you in an audit, a collection matter or an appeal, the person must be an enrolled agent, a CPA or an attorney. Most small businesses keep the two roles separate or use one firm that offers both.
How often should a bookkeeper update my books?
At minimum, books should be updated, and every account reconciled once a month, soon after each month’s end. Businesses with high transaction volume, several locations, or tight cash flow benefit from weekly updates.
What records should a business keep, and for how long?
Keep the documents behind every entry: invoices, receipts, deposit records, bank and card statements, and canceled checks. The IRS general rule is three years, but it is six years if you leave out more than 25 percent of your gross income, seven years for bad debt or worthless securities claims, and at least four years for employment tax records.
What software do bookkeepers use?
Most small business bookkeepers work in cloud accounting software such as QuickBooks Online or Xero, connected to bank feeds, along with a payroll system and a secure portal for exchanging documents. The software matters less than whether someone reconciles and reviews what it produces.
Get Your Books Off Your Plate
Every tax return, loan application and pricing decision starts with the books. If you are behind, or you would rather spend those hours running the business, talk to Koffex Accounting. Call (815) 588-0200 or book a free consultation, and we will tell you plainly what your bookkeeping needs.
