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Sole proprietor taxes, simplified.

Here's everything you need to file your sole proprietor taxes right the first time.

Get Started

Sole proprietor taxes, simplified.

Here's everything you need to file your sole proprietor taxes right the first time.

Get Started
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What it means to file as a sole proprietor

If you run your business by yourself and haven't formed a separate business entity, the IRS treats you as a sole proprietor for tax purposes.

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For tax purposes, you and your business are the same entity. This means your business income and expenses are reported directly on your personal tax return (Form 1040) using Schedule C.

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One Simple Tax Return

You don’t file a separate business tax return. Your business income is reported as part of your personal tax return.

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Taxes on Your Business Income

You’ll pay regular income tax and self-employment tax on the profit your business earns during the year.

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Write Off Business Expenses

You can deduct eligible business expenses to reduce your taxable income and lower what you owe.

Key tax forms for sole proprietors

All due April 15th, or October 15th with extension filed

Schedule C (Form 1040)


Reports your business income and expenses

Business Filing Deadlines

Stay on top of key due dates

Form 1040

Your main individual income tax return

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What you need

Have these records ready before you file. They help you total your income and expenses to accurately complete your Schedule C.

Download Free P&L Template
  • Income statements or 1099-NEC/1099-K forms

  • Expense receipts and invoices

  • Bank or credit card statements

  • Mileage or home-office logs (if applicable)

  • Prior-year return (optional but helpful)

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Common deductions

Save money by claiming the expenses that apply to your business. Typical deductions include:

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Startup costs (if this is your first year)

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Advertising and website costs

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Home office expenses

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Office supplies and equipment

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Business insurance

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Vehicle or mileage expenses

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Software subscriptions and professional tools

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What small business filers are saying.

First-year business owners trust TaxAct to make filing simple and stress-free.

Great experience!

“Everything went breezily well as usual. I would recommend it to anyone looking for a software to try our safely and securely.”

@Dr. Ban Oct 26, 2025

Worth it!

“Accurate, and easy to use. I was able to self complete with guides provided.”

@SandraL Oct 25, 2025

Easy Peasy

“This product literally walks you through the entire process. Gather your paperwork by form type and minutes later your e-file is complete. I filed using an extension, but still received my ACH Deposit in under 2 weeks.”

G in FL Oct 7, 2025

Start filing with confidence

Sole proprietor taxes, step-by-step.

Refund step 1

Total Your Income and Expenses

Use your profit and loss statement or bookkeeping records to add up what your business earned and spent.

Refund step 2

Enter Your Business Details

Add your sole proprietor information into TaxAct and let us guide you through each section.

Refund Step 3

Claim Every Deduction You Qualify For

Review your expenses and deductions to make sure you’re not leaving money on the table.

Refund Step 4

Preview Your Tax Results

See what you owe — or how your business income affects your personal tax return — before you file.

Refund Step 4

File with Confidence

E-file securely and choose direct deposit for refunds or convenient payment options if you owe.

Start Filing