Most small business owners spend more than 20 hours each year dealing with federal taxes, and 90% say taxes have an impact on their day-to-day operations.
Much of that time is spent on organizing records, reviewing bookkeeping, and making sure everything is ready before tax season.
That is where a small business tax preparation checklist can help. It gives you a clear roadmap to gather what you need, how to review your finances, and how to prepare your return, with fewer last-minute surprises.
In this guide, we’ll walk through the complete tax preparation checklist of a small business.
TL;DR – Small Business Tax Preparation Checklist
Short on time? Here’s a quick checklist to help you prepare for tax season:
- Gather all income, expenses, payroll, and financial records.
- Reconcile your books with your bank accounts and payment platforms.
- Review deductions, estimated tax payments, and major business expenses.
- Check the filing requirements for your business structure.
- Compare your records with last year’s tax return.
- Resolve any bookkeeping issues before filing.
- Get a professional catch-up bookkeeping service if your records aren’t tax-ready.
We’ll be discussing all these points in detail in the sections below.
Documents Every Small Business Tax Preparation Checklist Should Include
The first step in preparing your business taxes is gathering the right documents. Having your records organized before you file makes the process faster, more accurate, and much easier to manage.
Here are all the documents you’ll need:
Income and Revenue Records
Your income records show how much your business earned during the year and form the foundation of your tax return. Before filing, make sure you’ve gathered records from every source your business uses to receive payments.
Ensure that your income records include:
- Year-end sales reports or gross revenue summaries from your accounting software
- Customer invoices and sales receipts
- Bank deposit records
- Form 1099-NEC for contractor income
- Form 1099-K from payment processors such as Stripe, PayPal, Square, or Shopify, when applicable
- Form 1099-MISC for other qualifying business income
- Interest or dividend statements related to business accounts
- Previous year’s tax return for reference and carry-forward items
If you receive payments through multiple channels like Stripe, PayPal, Shopify, or other similar platforms, then make sure your reports match your bookkeeping records. It’s better to reconcile them before filing, as it also helps you catch missing transactions and keeps your income records accurate.
Business Expense Records
Business expenses often represent some of the largest tax deductions available to small businesses, but they’re only valuable if they’re properly documented.
Gather records for every deductible expense, including:
- Business bank statements
- Business credit card statements
- Receipts and invoices
- Vendor bills
- Payment confirmations or canceled checks for larger purchases
- Mileage logs, if you use a vehicle for business
- Records for software subscriptions, marketing expenses, professional services, insurance, rent, utilities, office supplies, travel, and business meals
If your business purchased equipment, furniture, computers, or other long-term assets during the year, keep the purchase documents as well. These records help determine whether the cost should be deducted immediately or depreciated over time.
Payroll and Employee Documents
If you have employees or work with independent contractors, then your payroll records become an important part of the tax preparation checklist.
This typically includes:
- Payroll summaries
- Employee W-2 forms
- Forms 941 or other required payroll tax filings
- State payroll tax filings
- Payroll reports showing wages, tax withholdings, and employer contributions
- Employee benefit records
- Contractor payment records
- Forms 1099-NEC issued to eligible contractors
Take a few minutes to confirm that payroll records match your bookkeeping and tax filings. It’s much easier to correct missing information before you file than after your return has been submitted.
Financial Statements and Reports
Your financial statements bring together all of the information above and give you a complete picture of your business’s financial activity during the year. Tax professionals often rely on these reports to verify income, expenses, assets, and liabilities before preparing a return.
At a minimum, you should have:
- Profit and Loss Statement
- Balance Sheet
- Cash Flow Statement
- General ledger
- Bank reconciliation reports
- Accounts receivable and accounts payable reports, if applicable
Before moving on to tax forms, review these reports for missing transactions, duplicate entries, uncategorized expenses, or unreconciled accounts. Fixing bookkeeping issues now is much easier than trying to resolve them after your tax return has already been prepared.
Small Business Tax Preparation Checklist Items – Complete List
Once your documents are in one place, the next step is to review the details that affect your tax return. This is where your records, bookkeeping, and tax forms need to line up.
Use this small business tax preparation checklist before filing or sending your information to a tax professional:
Verify Your Business Information
Start with the basics. Make sure the information on your tax return matches your business records.
Take a moment to check your:
- Legal business name
- EIN or Social Security number
- Business address
- Business structure
- Ownership information, if applicable
- Accounting method (cash or accrual)
These details don’t take long to review, but correcting them before you file is much easier than fixing them afterward.
Reconcile Your Income
Now compare the income in your bookkeeping records with the payments your business actually received during the year.
Look for things like:
- Missing deposits
- Duplicate transactions
- Refunds that haven’t been recorded correctly
- Differences between payment processor reports and your books
The goal is to make sure every dollar earned by the business has been recorded accurately before you move on.
Review Your Expense Categories
Next, go through your business expenses with fresh eyes. This isn’t about checking that everything has been recorded in the right place.
Pay extra attention to:
- Uncategorized transactions
- Duplicate expenses
- Personal purchases mixed into business accounts
- Large purchases that may need different tax treatment
Doing a quick review now can save a lot of questions when it’s time to prepare your return.
Review Payroll and Contractor Records
If your business has employees or pays independent contractors, spend some time reviewing your payroll records before filing.
Check that:
- Employee wages have been recorded correctly.
- Payroll tax filings are complete.
- Contractor payments match your bookkeeping.
- Required W-2 and 1099 forms have been prepared or issued.
It will be much easier to correct payroll discrepancies before filing than amending returns afterward.
Review Fixed Assets
Think back to any major purchases you made during the year, such as computers, office furniture, machinery, or business vehicles.
Review the purchase details, including:
- Purchase date
- Cost
- Date the asset was placed in service
- Any assets sold or disposed of during the year
Keeping this information organized makes it easier to calculate depreciation and determine whether any special tax deductions apply.
Reconcile Your Financial Accounts
Before you file, make sure your bookkeeping agrees with the balances in each of your financial accounts.
This includes your:
- Business bank accounts
- Credit cards
- Loan accounts
- Payment platforms such as Stripe, PayPal, or Shopify
Reconciling your accounts helps you catch missing transactions, duplicate entries, and incorrect balances before they affect your tax return.
Review Estimated Tax Payments
Take a moment to review any taxes you’ve already paid throughout the year so you can receive credit for them when you file.
This may include:
- Quarterly estimated tax payments
- Payroll tax deposits
- Sales tax payments
- State income or franchise tax payments
Keeping these records together also makes it easier to calculate any remaining balance due or expected refund.
Review State Tax Requirements
Federal taxes aren’t the only filing requirement for many businesses.
Depending on where you operate, review any:
- State income tax filings
- Franchise taxes
- Sales tax returns
- Annual reports or license renewals
This is especially important if your business operates or sells in multiple states.
Compare With Last Year’s Return
Take a look at your previous tax return. It can become a helpful reference when reviewing this year’s records.
Specifically look for:
- Large changes in income or expenses
- Carry forward losses or tax credits
- Depreciation schedules
- Owner draws or distributions
- Any IRS or state notices received since your last return
If something looks significantly different from last year, make sure you understand why before filing.
Do One Final Review Before Filing
Before you send your information to your tax preparer or file your return yourself, take one last look through your books.
Make sure:
- Every account has been reconciled.
- Income and expenses are complete.
- Financial statements are accurate.
- Required tax forms are ready.
- Filing deadlines haven’t been missed.
A final review gives you peace of mind that your records are complete and helps make tax season a little less stressful.
Small Business Tax Preparation Checklist by Business Structure
While every business should organize its financial records before tax season, the exact filing requirements depend on how the business is structured. Here are a few additional items to review based on your business type:
Sole Proprietors and Single-Member LLCs
Sole proprietors and single-member LLCs generally report business income and expenses on their personal tax return using Schedule C. Along with the general checklist above, make sure you also review:
- Schedule C income and expenses: Confirm that all your business income and deductible expenses have been recorded accurately.
- Home office records: If you qualify for the home office deduction, keep records of your home’s square footage and eligible household expenses.
- Business vehicle records: Maintain a mileage log or records of actual vehicle expenses if you plan to claim a vehicle deduction.
- Self-employed health insurance premiums: Gather records if you’re eligible to deduct health insurance costs.
- Estimated tax payments: Verify any quarterly estimated tax payments made during the year so they’re included on your return.
- Retirement contributions: Review contributions made to retirement plans such as a SEP IRA or Solo 401(k), as they may reduce your taxable income.
S-Corporations and Partnerships
S-Corporations and partnerships have additional reporting requirements because income passes through to the owners instead of being taxed at the business level.
In addition to the general checklist, review the following:
- Schedule K-1 information: Confirm each owner’s share of income, deductions, credits, and distributions before preparing tax returns.
- Owner distributions: Make sure shareholder or partner distributions have been recorded correctly throughout the year.
- Reasonable compensation (S-Corporations): If your shareholders receive a salary, review payroll records to ensure compensation is properly documented.
- Shareholder or partner basis records: Maintain records of contributions, distributions, and prior-year basis adjustments when applicable.
- Business loan records: Separate all shareholder or partner loans from capital contributions and confirm balances are accurate.
- Entity tax return deadlines: Partnerships and S-Corporations generally file earlier than sole proprietorships, so make sure you plan your bookkeeping and tax preparation accordingly.
Common Mistakes That Derail Small Business Tax Preparation
Even with a checklist, it’s easy to overlook a few details that make tax season more complicated than it needs to be. Here are some of the most common mistakes small business owners run into and how to avoid them:
- Falling behind on bookkeeping: If you’re trying to catch up on months of bookkeeping just before the filing deadline, tax preparation quickly becomes a much bigger project. The more organized your books are throughout the year, the easier tax season tends to be.
- Mixing personal and business expenses: Using the same account for both personal and business purchases makes it difficult to identify deductible expenses and keep accurate records. A separate business bank account and credit card make bookkeeping tasks much easier.
- Underpaying estimated taxes: If your business is required to make quarterly estimated tax payments, underpaying them can result in penalties and interest. Review your payments before filing to make sure you’ve paid enough throughout the year.
- Overlooking eligible deductions: Many deductions are missed simply because expenses weren’t recorded properly, or supporting documents couldn’t be found. Reviewing your books before filing gives you a chance to catch these while there’s still time.
- Filing at the last minute: Leaving everything until the last minute gives you very little time to spot missing information or correct errors. Starting your tax preparation early makes the entire process less stressful and gives you time to resolve any issues that come up.
When is the Best Time to Bring in a Bookkeeper or Tax Professional?
Preparing your own taxes works well for many small businesses, especially when your books are accurate and up to date. If tax season feels more stressful every year, it may be time to bring in a bookkeeper or tax professional.
Some common signs include:
- You’re catching up on months of bookkeeping every time tax season comes around.
- Your business has become more complex, with employees, contractors, or multiple income streams.
- You sell through platforms like Stripe, PayPal, or Shopify and spend too much time reconciling transactions.
- You’re unsure whether your financial reports are accurate before filing your return.
- You’d rather spend your time growing the business than organizing receipts and fixing bookkeeping errors.
If you’ve found yourself dealing with one or more of these issues, it may be time to get help with the bookkeeping before tax season rolls around.
That’s exactly where AccountsBalance can help. We work with online businesses that want to stay on top of their books year-round. You’ll have a dedicated bookkeeper who manages your bookkeeping each month and delivers your financial reports by the 15th, so your records are ready whenever you need them.
We also understand the tools online businesses rely on every day, including platforms like Stripe and PayPal, and provide responsive support through email, text, and video calls.
Ready to make tax season less stressful? Sign up with us today.
Frequently Asked Questions (FAQs)
Here are answers to some common questions about preparing and filing small business taxes.
What Tax Forms Do Most Small Businesses Need to File?
The forms you’ll need depend on your business structure. Some of the most common ones include:
- Schedule C: Used by sole proprietors and many single-member LLCs to report business income and expenses.
- Form 1065: Filed by partnerships.
- Form 1120-S: Filed by S corporations.
- Form 1120: Filed by C corporations.
- Payroll tax forms and Form 1099-NEC: May also be required if you have employees or pay independent contractors.
Your business may also have state filing requirements depending on where you operate.
Does My Business Structure Change My Tax Filing Deadlines?
Yes. Filing deadlines vary based on your business structure. For example, partnerships and S corporations generally have earlier filing deadlines than sole proprietors.
Since deadlines can change, it’s a good idea to check the IRS filing calendar each year or confirm the dates with your tax professional before filing.
Do I Need a Separate Business Bank Account to File Taxes?
Not necessarily. Sole proprietors, for example, aren’t generally required to have a separate business bank account.
That said, having one makes tax preparation much easier because your business income and expenses are already separated from your personal transactions. It also saves time when reviewing your books and identifying deductible expenses.
What Triggers an IRS Audit for Small Businesses?
No single action automatically triggers an IRS audit. However, the IRS may take a closer look at returns that contain unusual or inconsistent information.
Some examples include:
- Income that doesn’t match information reported on tax forms.
- Large deductions without supporting records.
- Payroll reporting errors.
- Missing income.
- Frequent bookkeeping discrepancies.
Keeping accurate, up-to-date records helps support the information reported on your return if questions ever arise.
Conclusion
Preparing your business taxes starts long before you fill out a tax return. When your financial records are organized, your accounts are reconciled, and your bookkeeping is up to date, it’s much easier to gather the information you need, claim eligible deductions, and file with confidence.
If your business is spending every tax season catching up on bookkeeping, it may be time for ongoing support. AccountsBalance provides monthly bookkeeping for online businesses, with dedicated bookkeepers, fixed pricing, and financial reports delivered by the 15th of each month, so you’re always prepared when tax season comes around.
Schedule a call with AccountsBalance to see how bookkeeping can help keep your business tax-ready throughout the year.
