Tax Time Made Easy: A Must-Read U.S. Small Business Tax Preparation Checklist

Don't miss a thing on your taxes this year by using this easy-to-follow small business tax preparation checklist.

small business tax checklist

For small business owners, tax season can feel overwhelming. From organizing business tax forms to calculating estimated tax payments and tracking business expenses, there’s a lot to handle. Overlooking details like state unemployment taxes, excise taxes, or employment taxes could cost you valuable tax credits or deductions. Plus, errors in your tax prep checklist might delay your personal or business tax return—or even trigger a notice from the IRS.

This small business tax checklist is designed to simplify the tax filing process, whether you’re reporting income, filing a business tax return, or working with a tax advisor. By following this guide, you’ll feel confident navigating federal taxes, self-employment taxes, and everything in between. Let’s make tax season easier so you can focus on what matters most—growing your business.

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Your Small Business Tax Checklist

Ready for an organized start to small business taxes? Here are 12 action items to start checking off your list:

1. Find the Right Form

Getting organized starts with knowing which tax forms your business needs to file. Each type of business structure has unique requirements, and ensuring you file the correct forms is a crucial first step in any small business tax preparation checklist.

Here’s a quick breakdown based on your business structure:

  • Sole proprietors: File Schedule C along with your Form 1040 (personal income tax return) to report your business income and expenses.
  • Partnerships: Submit Form 1065 (Information Return) and use Schedule K-1 to report your share of the business income, losses, and deductions on your personal tax return.
  • S corporations: File Form 1120S and use Schedule K-1 for reporting your share of business income and losses.
  • C corporations: File Form 1120 to report your company’s taxable income and deductions.

By understanding your filing obligations, you can avoid delays and ensure your small business tax prep stays on track.

2. Know Your Due Date

Staying on top of deadlines is key to avoiding penalties and keeping your tax filing stress-free. Different business tax forms have specific due dates, so mark your calendar with these important dates:

  • Schedule C (sole proprietors): Due on April 15, alongside your personal tax return.
  • Form 1065 and Schedule K-1 (partnerships): Due on March 15.
  • Form 1120S (S corporations): Due on the 15th day of the third month following the end of the business tax year, usually March 15.
  • Form 1120 (C corporations): Due on the 15th day of the fourth month after the business tax year ends, typically April 15.

If the due date falls on a weekend or holiday, the filing deadline moves to the next business day. Missing deadlines can complicate your tax situation, so double-check your dates early in the tax year.

3. Schedule Time With Your Tax Preparer

Don’t wait until the last minute to connect with your tax preparer. Tax season gets hectic, and the best professionals book up fast. A skilled tax professional can help ensure your small business tax preparation runs smoothly, advise you on potential tax deductions or credits, and even assist with complex areas like self-employment tax, excise taxes, or reporting business assets.

If you haven’t already hired someone, start interviewing candidates before the rush. Look for a tax advisor who understands your industry—whether you’re a small business owner, freelancer, or run a pass-through entity. Specialized expertise can make a big difference in optimizing your tax prep checklist. Talk to the rest of your freelance community if you’re not sure where to start.

Pro tip: When meeting with your tax preparer, bring essential documents like credit card statements, accounts receivable/payable records, and details about loan balances or business expenses. Being prepared will save time and help your preparer identify ways to reduce your taxable income.

4. Pull Your Records

Organizing your records is a critical step in your small business tax preparation checklist. Whether you’re tackling tax prep solo or working with a tax professional, having everything ready will make the tax filing process much smoother.

Here’s what to gather:

  • Prior year tax return: This helps provide a reference for this year’s tax prep and ensures no deductions or business tax credits are missed.
  • Bank reconciliations: Ensure your accounts are balanced to avoid discrepancies in your business tax preparation.
  • Income statement and balance sheet: These provide a snapshot of your business income, expenses, and assets for the year. Many small business owners can download these directly from accounting software.
  • Estimated tax payments: Keep records of any payments made toward federal taxes or state unemployment taxes during the year.

Having these documents ready helps avoid delays and keeps your small business tax prep on track.

5. Track Down Any Missing Receipts and Expenses

Good record-keeping is key to maximizing your small business tax deductions. If you’ve lost track of any credit card statements or receipts, now’s the time to find them and log them correctly.

Here are some tips to get organized:

  • Check for business-related purchases made with personal credit cards or accounts. Log these into your records to ensure they’re counted as business expenses.
  • Review your accounts payable and accounts receivable to confirm everything matches your records.
  • Make sure all receipts are organized and logged in your accounting software. Keeping this habit consistent helps you track deductible expenses like loan interest, health insurance, or even professional fees for tax prep services.

Taking the time to clean up your records ensures that you’re not missing any expenses that could lower your taxable income. Plus, it simplifies the tax preparation checklist for future tax seasons.



6. Send Any Required 1099-NECs

Did you work with independent contractors or non-employees this year? If so, issuing 1099-NEC forms is a key step in your business tax preparation checklist. These forms detail the payments you made to contractors so they can include the income on their own personal tax returns.

Here’s what you need to know:

  • Deadline: File 1099-NECs by January 31. One copy goes to the contractor, and another is sent to the IRS.
  • Who needs a 1099-NEC?: Contractors who earned $600 or more from your business during the tax year.
  • Keep records: If you received a 1099-NEC from clients, keep these documents handy for your own tax returns to cross-check your records.

Issuing these forms on time helps ensure compliance and avoids penalties, making it easier to file taxes accurately.

7. Update Your Mileage Log

If you use your vehicle for business purposes, keeping an accurate mileage log is essential for claiming a small business tax deduction at tax time. A well-maintained log ensures you don’t miss out on this valuable deduction and keeps your tax situation organized.

Here’s how to stay on track:

  • Log every work-related trip, including the date, miles driven, and purpose.
  • If you’ve fallen behind, update your log now. Estimate any missed trips using credit card statements, receipts, or calendar entries.
  • Choose your deduction method:
    • Standard mileage rate: Deduct a set rate per mile driven.
    • Actual expenses: Deduct expenses like gas, maintenance, and insurance. To use this method, split costs between personal and business use based on mileage.

A complete mileage log ensures you’re ready to claim mileage for small business tax prep and helps lower your taxable income.

8. Decide on Your Home Office Deduction

If you work from home, you may qualify for a home office deduction, which is a great way to reduce your taxable income. Before filing your business tax return, decide which method works best for your situation:

  • Simplified method: Deduct $5 per square foot of office space, up to 300 square feet. This option is straightforward, with a maximum deduction of $1,500.
  • Regular method: Deduct actual expenses, such as utilities, rent, and property taxes, based on the percentage of your home used for business. For example, if 10% of your home is your office, you can deduct 10% of these expenses.

A tax professional can help you determine which method maximizes your deduction. Make sure to document your office dimensions and expenses to ensure your records are audit-ready.

9. Deduct Health Insurance Premiums

Self-employed individuals often pay out-of-pocket for health insurance. The good news? You may be eligible to deduct your health insurance premiums, lowering your overall business tax liability.

Here’s what to know:

  • The deduction applies to premiums paid for you, your spouse, and your dependents.
  • Your deduction can’t exceed your net self-employment income.
  • Keep detailed records of your monthly premium payments, as these are critical for business tax preparation.

This deduction is a significant benefit for small business owners and sole proprietors who handle their own health insurance, so don’t overlook it during tax season.

10. Ensure All Other Expenses Are Properly Categorized

When it comes to small business tax preparation, categorizing expenses correctly is critical. Misclassifying business expenses, like meals, could lead to missed deductions and lost savings during tax time. Here’s a quick guide to make sure your expense tracking is on point:

  • Differentiate between meal deductions: While most meal expenses are 50% deductible, some, such as snacks provided in the office, are 100% deductible. Be sure these are categorized correctly in your business tax preparation checklist.
  • Review other business expenses: Check your accounts payable for professional fees, loan interest, and property taxes. Properly classifying these can ensure accurate deductions.

Taking a few extra minutes to review these details can make a big difference in your small business tax prep. It’s a small step that saves money and avoids unnecessary back-and-forth with your tax professional.

11. Keep Track of Any Estimated Tax Payments

The U.S. tax system operates on a pay-as-you-go basis, meaning taxes must be paid periodically throughout the year. For small business owners, this often means making quarterly estimated tax payments. To avoid surprises during tax season, follow these tips:

  • Record all estimated payments: Keep detailed records of payments toward federal taxes, self-employment tax, and excise taxes (here’s a description of what those are). Include the dates and amounts in your tax prep checklist.
  • Report payments on your tax return: Ensure all estimated payments are accounted for when you file taxes. This prevents overpaying or underpaying.

Staying on top of these payments simplifies your tax preparation checklist and ensures you meet all obligations as a small business owner.

12. File for an Extension, If Needed

Sometimes, despite your best efforts, you might not have everything ready by the tax deadline. Thankfully, the IRS offers an automatic extension option, giving you extra time to organize your business tax preparation. Here’s what you need to know:

  • Understand the rules: File for an extension before the original tax due date. Remember, this is an extension to file taxes—not an extension to pay taxes. Federal taxes, such as income tax and Medicare taxes, must still be paid on time to avoid penalties.
  • Stay organized during the extension period: Use this additional time to finalize your small business tax deductions, review non-employee tax forms, and verify employee legal working status.

Filing for an extension can reduce stress and ensure accuracy in your small business tax preparation checklist. It’s a helpful tool for business owners who need a little breathing room during tax season.

Conclusion: Staying Organized for Tax Season

Tax season doesn’t have to be a stressful time for small business owners. Whether you’re filing a personal income tax return or preparing your business tax return, being organized is the key to staying on top of things. With the right tools and a solid system in place, you can navigate everything from business tax forms to tax credits and deductions with ease. Here are some important steps to help you stay on track for tax time:

Key Tax Tasks to Keep Track Of

To make the filing process smoother, it’s important to stay on top of your tax responsibilities. Below is a checklist of key tasks to ensure you’re ready to file your taxes on time:

  • Report income: Keep track of all your business income, including any payments to independent contractors or employees.
  • Track business expenses: Make sure all your business expenses are properly documented, from office supplies to paid family leave.
  • Separate business and personal funds: Use separate business bank accounts and credit cards to avoid mixing personal and business finances.
  • File taxes on time: Stay aware of your tax deadline for both federal and state taxes, including any business tax returns you need to file.
  • Pay excise taxes: If applicable, make sure you’re on top of excise taxes, including state unemployment taxes and property taxes.
  • Review tax credits: Look for opportunities to claim any available tax credits, like the alternative motor vehicle credit.
  • Make estimated tax payments: As a business owner, you may need to pay estimated taxes throughout the year to avoid penalties.
  • Report employee legal working status: Ensure you have all necessary documentation for employees and independent contractors, including their tax forms.

Tools to Help with Tax Preparation

Using the right tools can make tax season a lot easier. Here are some steps to ensure you’re using effective systems for your business:

  • Use a good bookkeeping system: FreshBooks offers an easy-to-use accounting software that helps you track income and business expenses, keeping everything organized for tax filing.
  • Hire a bookkeeper: If you’re not keen on handling the books yourself, consider hiring a professional bookkeeper, such as Bench, to help you stay on top of your finances.
  • Create a filing system: Whether you prefer paper or digital, make sure you store important tax documents (like tax returns and receipts) in an organized system that you can easily access when needed.
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Why FreshBooks is a Great Tax Time Prep Solution

FreshBooks is designed to help small business owners stay organized and simplify their tax preparation. By using FreshBooks, you can:

  • Track business income and expenses with ease.
  • Separate business and personal finances to avoid confusion.
  • Generate tax reports that make it easy to complete your business tax return.
  • Work seamlessly with your tax preparer or tax advisor to ensure all necessary tax forms and deductions are accounted for.

With these tools in place, you’ll be well-prepared for tax season, and you won’t have to scramble at the last minute. By staying organized and using the right systems, you can avoid the stress of filing taxes and ensure your business runs smoothly year-round.

This post was updated in December 2024.

Erica Gellerman

Written by Erica Gellerman, Freelance Contributor

Posted on February 24, 2021