Business Tax Return Form: Your US Filing Guide

Filing a US business tax return can be a challenge for independent contractors and small business owners. Accuracy is essential for maintaining compliance and managing your company’s financial health. This guide explains which forms apply to your business, what information to gather, and how to file correctly. We also show how Wise can help you simplify record-keeping for international transactions, making tax season easier.

Need to send and receive cross-border business payments?
Try Wise Business ->

Which Business Tax Return Form Do You Need?

The business tax return form you must file depends on your company's legal structure. Choosing the correct form is the first step toward accurate tax filing. Each form is designed to report income and expenses for a specific type of business entity.

• Sole Proprietorship/Single-Member LLC: File Schedule C (Form 1040), Profit or Loss from Business. This form reports business income and expenses as part of your personal tax return.¹
• Partnership/Multi-Member LLC: File Form 1065, U.S. Return of Partnership Income. This form reports the partnership's financials. Profits and losses are then passed to partners via Schedule K-1.
• S-Corporation: File Form 1120-S, U.S. Income Tax Return for an S Corporation. This form reports the S-corp's income, deductions, and credits. Profits and losses pass through to shareholders' personal returns.²
• C-Corporation: File Form 1120, U.S. Corporation Income Tax Return. A C-corp is taxed as a separate entity, and this form calculates the corporation's tax liability.

Choosing the right business structure has financial implications. Managing funds efficiently across borders with a tool like a Wise business account is key to simplifying record-keeping, which aids in completing these forms.

What Information Do You Need to Gather?

Before you begin filing, you must organize your financial records for the tax year. Incomplete or inaccurate expense tracking is a common issue that can lead to errors. Having all the necessary information prepared will streamline the process.

You will need the following information:

• Income: This includes gross receipts and sales records.
• Expenses: A detailed list of deductible business expenses, such as rent, utilities, office supplies, marketing costs, business travel, and professional fees.
• Assets and Liabilities: Information about business property, equipment, and debts.
• Payroll Information: If you have employees, you will need records of wages paid (Form W-2) and payments to independent contractors (Form 1099).
• Previous Tax Returns: Keep prior-year returns for reference.

Organize all income and expense records before you start filing.

How to File Schedule C (Sole Proprietorship & Single-Member LLC)

Schedule C is the most common form for self-employed individuals and single-owner businesses. It reports business profit or loss, which then flows to your personal Form 1040.

Step 1: Identify Your Business Income. Calculate your gross receipts or sales from all business activities for the year and report this figure on Line 1.

Step 2: Calculate Your Cost of Goods Sold (if applicable). If your business sells products, you must calculate the cost of goods sold. This involves your starting inventory, purchases, and ending inventory.

Step 3: List Your Business Expenses. Detail all your ordinary and necessary business expenses in Part II. This includes costs like advertising, office supplies, software subscriptions, and business-related travel. For income earned or expenses paid in foreign currencies, use a consistent and reasonable exchange rate for conversion.

Step 4: Calculate Your Net Profit or Loss. Subtract your total expenses from your total income. This is your net profit or loss, which you will use for tax calculations.

Step 5: Report on Form 1040. Your net profit or loss from Schedule C is reported on Schedule 1 of your personal Form 1040 and is used to calculate your total taxable income.

Avoid claiming personal expenses as business deductions.

---

Wise Business Could Help Your Company Save on Global Payments

---

How to File Form 1065 (Partnerships)

Partnerships and multi-member LLCs use Form 1065 to report their annual financial performance. The partnership itself does not pay tax; instead, profits and losses are passed to the partners.

Step 1: Gather Partner Information. You will need the name, address, and tax identification number for each partner. This information is required to prepare individual Schedule K-1 forms.

Step 2: Report Income and Deductions. Report the partnership's gross receipts, cost of goods sold, and deductible business expenses on Form 1065. If the partnership has foreign income, it must be reported, and you may be able to claim foreign tax credits.

Step 3: Calculate Net Income (or Loss) for the Partnership. Determine the partnership's ordinary business income or loss for the tax year.

Step 4: Complete Schedule K-1 for Each Partner. Allocate each partner's share of the income, deductions, and credits on a Schedule K-1. Each partner uses their K-1 to report their share on their personal tax return.

A common mistake is incorrectly allocating income and deductions among partners.

How to File Forms 1120-S (S-Corps) and 1120 (C-Corps)

Corporations file either Form 1120-S or Form 1120, depending on their tax election with the IRS. Both forms report corporate income and expenses, but the tax implications differ significantly.

Form 1120-S (S-Corps)

S-corporations are pass-through entities. They file Form 1120-S to report income and expenses, but the profits or losses flow through to the shareholders' personal tax returns via Schedule K-1. Key sections report income, deductions, and shareholder basis. Foreign income or operations must be reported accurately.

Form 1120 (C-Corps)

C-corporations are taxed as separate legal entities at the corporate level. Form 1120 is used to report gross income, deductions, and the final tax liability. This form is also used to report income from foreign branch operations.

For S-Corps, a common mistake is failing to maintain an accurate shareholder basis. For C-Corps, it is misclassifying expenses.

Navigating International Business Tax Considerations

Businesses operating internationally face additional tax compliance requirements. Proper reporting of foreign transactions is crucial to avoid penalties.

• Foreign Income Reporting: You must report all income earned from sales or operations in foreign countries on your US tax return. Specific forms, like Form 5471 for certain foreign corporations, may be required.
• Foreign Tax Credits: To avoid double taxation, you may be able to claim a credit for income taxes paid to a foreign government.
• Currency Conversion: Use a consistent and accurate exchange rate to convert all foreign income and expenses into US dollars. This directly impacts your tax calculations.
• Reporting Foreign Bank Accounts: If your business has financial accounts in foreign countries, you may need to file a FinCEN Form 114, Report of Foreign Bank and Financial Accounts (FBAR).

A Wise business account simplifies tracking foreign income and expenses. Its multi-currency capabilities and transparent exchange rates can make tax reporting more accurate and less time-consuming.

Common Tax Filing Mistakes to Avoid

Avoiding common errors can save you time, money, and potential IRS penalties. Pay close attention to these frequent mistakes during tax preparation.

• Mistake 1: Missing Deadlines. The IRS imposes strict deadlines for different business structures. Late filing can result in significant penalties.
• Mistake 2: Incorrectly Classifying Business Structure. Filing with a form that does not match your legal business entity is a serious error.
• Mistake 3: Overlooking Deductible Expenses. Thorough record-keeping helps ensure you claim all eligible business deductions you are entitled to.³
• Mistake 4: Inaccurate Foreign Transaction Reporting. Misreporting international income, expenses, or bank accounts can lead to complex issues and penalties.

Save Time and Money On Overseas Payments With Wise Business

Wise Business can help you save big time on international payments.

Wise is not a bank, but a Money Services Business (MSB) provider and a smart alternative to banks. The Wise Business account is designed with international business in mind, and makes it easy to send, hold, and manage business funds in 40+ currencies.

Signing up to Wise Business allows access to BatchTransfer which you can use to pay up to 1000 invoices in one go. This is perfect for small businesses that are managing a global team, saving a ton of time and hassle when making payments.

Some key features of Wise Business include:

• Mid-market rate: Get the mid-market exchange rate with no hidden fees on international transfers

• Global Account: Send money to 140+ countries and hold multiple currencies, all in one place. You can also get major currency account details for a one-off fee to receive overseas payments like a local

• Access to BatchTransfer: Pay up to 1000 invoices in one click. Save time, money, and stress when you make 1000 payments in one click with BatchTransfer payments. Access to BatchTransfer is free with a Wise Business account

• Auto-conversions: Don't like the current currency exchange rate? Set your desired rate, and Wise sends the transfer the moment the rate is met

• Free invoicing tool: Generate and send professional invoices

• No minimum balance requirements or monthly fees: US-based businesses can open an account for free. Learn more about fees here

Use Wise Business >>

Final Thoughts

Accurately filing your business tax return starts with using the correct form and maintaining organized records. Using a financial tool like Wise can simplify tracking international payments and expenses, helping ensure your numbers are accurate. By paying close attention to details, especially for foreign transactions, you can reduce errors and file with confidence. Explore Wise for Business to see how you can manage global payments and streamline your finances for an easier tax season.

---

Frequently Asked Questions

Can I file my business tax return form online?

Yes, most business tax returns can be filed electronically. You can use IRS-approved tax software or file through a tax professional. Some forms can also be filed directly through the IRS website.⁴

How long does it take to complete a business tax return?

The time required depends on your business complexity, the quality of your records, and your familiarity with the forms. It can range from a few hours for a simple Schedule C to several days for a complex corporate return.

What if I made a mistake on my business tax return?

If you find a mistake after filing, you can file an amended return. For individuals who filed a Schedule C, this is done using Form 1040-X. Other business structures have corresponding amended return forms. It is often best to consult tax guidance or a professional.

---

Sources:

1. How to File Federal Income Taxes for Small Businesses | Turbotax Intuit
2. What Tax Forms Do I Use to File My Business Return? | TaxAct
3. Tax Forms Every Small Business Owner Should Know | U.S. Chamber of Commerce
4. Forms for corporations | IRS