IRS Form 1040 vs. Form 1065: What’s the Difference?
Tax forms can be confusing, especially when you’re running a business. Two of the most common forms taxpayers encounter are IRS Form 1040 and IRS Form 1065. While both are related to federal taxes, they serve very different purposes.
Understanding which form applies to you can help you stay compliant, avoid penalties, and ensure you’re reporting your income correctly.
What Is IRS Form 1040?
IRS Form 1040, U.S. Individual Income Tax Return, is the standard tax return used by individuals to report their personal income to the IRS.
Most taxpayers file Form 1040 each year, including:
- Employees who receive Form W-2
- Self-employed individuals
- Freelancers and independent contractors
- Retirees
- Investors
- Individuals with rental or other taxable income
Form 1040 reports your total income, deductions, credits, and tax liability to determine whether you owe additional taxes or are entitled to a refund.
Common Income Reported on Form 1040
Your Form 1040 may include income from:
- Wages and salaries
- Self-employment income
- Interest and dividends
- Capital gains
- Rental income
- Retirement distributions
- Social Security benefits (when taxable)
- Other sources of income
Many taxpayers also attach schedules, such as:
- Schedule C – Business Profit or Loss
- Schedule E – Rental Income
- Schedule SE – Self-Employment Tax
- Schedule D – Capital Gains and Losses
What Is IRS Form 1065?
IRS Form 1065, U.S. Return of Partnership Income, is an informational tax return filed by partnerships.
Unlike Form 1040, Form 1065 generally does not calculate income tax owed by the partnership itself. Instead, it reports the partnership’s:
- Income
- Expenses
- Deductions
- Credits
- Gains and losses
The partnership then issues a Schedule K-1 to each partner, showing that partner’s share of the business’s income or loss.
Each partner reports the information from Schedule K-1 on their own individual Form 1040.
Who Must File Form 1065?
Form 1065 is generally required for:
- General partnerships
- Limited partnerships (LPs)
- Multi-member LLCs that are taxed as partnerships
Single-member LLCs generally do not file Form 1065 unless they have elected a different tax classification.
Key Differences Between Form 1040 and Form 1065
| Feature | Form 1040 | Form 1065 |
|---|---|---|
| Who Files It? | Individuals | Partnerships and most multi-member LLCs |
| Purpose | Reports an individual’s income and taxes | Reports partnership income and allocates it to partners |
| Pays Federal Income Tax? | Yes, if tax is owed | Generally no; income passes through to partners |
| Filed By | Individual taxpayer | Partnership |
| Related Forms | Schedules A, C, D, E, SE and others | Schedule K, Schedule K-1, supporting schedules |
How Form 1040 and Form 1065 Work Together
If you’re a partner in a business, you may need to file both forms.
Here’s how the process works:
- The partnership files Form 1065.
- The partnership prepares Schedule K-1 for each partner.
- Each partner reports the K-1 information on their personal Form 1040.
- Any tax due is generally paid by the individual partner—not the partnership.
This “pass-through taxation” is one of the defining features of partnerships.
Common Filing Mistakes
Some common errors include:
- Filing the wrong tax form for your business structure.
- Forgetting to report Schedule K-1 income on Form 1040.
- Missing the filing deadline for Form 1065.
- Incorrectly classifying an LLC.
- Failing to maintain accurate bookkeeping throughout the year.
Working with a qualified tax professional can help prevent these costly mistakes.
How PFGTax Can Help
Whether you’re filing an individual return or managing a partnership, accurate tax preparation starts with organized financial records.
At PFGTax, we help clients:
- Prepare individual tax returns (Form 1040)
- File partnership tax returns (Form 1065)
- Prepare and review Schedule K-1s
- Maintain accurate bookkeeping
- Maximize deductions
- Stay compliant with IRS filing requirements
- Develop year-round tax strategies
Our experienced team works with individuals, partnerships, and small businesses to simplify tax season and help you make informed financial decisions.
Final Thoughts
Although IRS Forms 1040 and 1065 are both essential tax forms, they serve very different purposes.
- Form 1040 is used to report an individual’s income and calculate their personal tax liability.
- Form 1065 reports a partnership’s financial activity and passes income, deductions, and credits through to the partners using Schedule K-1.
Knowing which form applies to your situation is key to filing accurately and avoiding unnecessary IRS issues.
If you’re unsure which forms you need or need assistance preparing your return, PFGTax is here to help every step of the way.