Ultimate guide to small business tax forms, schedules, and resources

As a small business owner, you're building something remarkable—and understanding your tax obligations is crucial to your success. Managing taxes may seem complex, but with the right knowledge and the right tax software, it becomes a straightforward process.

Good news: We've simplified business taxation into an easy-to-follow roadmap covering the 25 most essential tax forms you’ll need. Whether you're preparing quarterly estimates or seeking deductions, this guide has you covered.

If you're filing your first return or refining your tax strategy, this guide compiles everything you need in one place. Dive into the full resource or use our quick-navigation menu to find the topics most relevant to your business.

Form 720 | Form 940 | Form 941 | Form 944

Form 1040 | Form 1065 | Form 1099 | Form 1120

Form 1120-S | Form 2553 | Form 4562 | Form 7004

Form 8829 | Form 8832 | Form SS-4 | Form W-2

Form W-3 | Form W-4 | Form W-9 | Additional resources

Form 720

Businesses that pay federal excise taxes file Form 720 every quarter. Businesses pay excise tax on specific goods and services manufactured or imported into the US. More specifically, excise refers to tax obligations incurred when a good is manufactured instead of when it’s sold.  

Substances covered by excise tax include:

• Environmental taxes 
• Communications and air transportation taxes
• Fuel taxes
• Retail tax (truck, trailer, and semi-trailer chassis and bodies, and tractor)
• Ship passenger tax (transportation by water)
• Manufacturers taxes (coal)

What is Form 720 for?

Businesses use Form 720 to report the excise taxes on certain business activities. 

Who needs to file Form 720?

Businesses that sell products or services with excise tax liability should use Form 720.

Form 940

Form 940 determines the amount you contribute to unemployment insurance as an employer. This helps employees who leave a job for reasons beyond their control receive unemployment insurance. You only need to submit Form 940 once a year, but you must pay your FUTA tax payments quarterly.

What is Form 940 for?

Businesses use Form 940 to report annual Federal Unemployment Tax Act (FUTA) taxes. This tax funds unemployment benefits to workers who lose their jobs.

Who needs to file Form 940?

 Employers who meet either of the following criteria must file:

• If you paid $1,500 or more to employees in any calendar quarter during 2023 or 2024
• If you retained at least one employee for 20 weeks or more

Form 941

On Form 941, businesses report payroll information on salaries, wages, tips, and taxes. The form also lets employers pay their portion of Social Security or Medicare tax. Companies must file Form 941 quarterly. 

What is Form 941 for?

Businesses use Form 941 to report employee wages, tips, and tax withholding information.

Who needs to file Form 941?

Any business that pays wages subject to federal income tax withholding or Social Security and Medicare to an employee must file the form quarterly.

Schedule B

If your business qualifies as a semiweekly depositor, you need to file Form 941 with Schedule B. The IRS considers you a semiweekly depositor if: 

• You report over $50,000 in employment taxes during the lookback period 
• You accumulated a tax liability of at least $100,000 on any given day in the current or past calendar year. 

Schedule B is attached to Form 941. It reports the employer’s quarterly tax liability for withholdings on a daily basis.

Form 944

Form 944 is a small business tax form that works like Form 941, except you can file once a year instead of quarterly. Businesses with annual liability for Social Security, Medicare, and withheld federal income taxes of $1,000 or less are eligible to report federal income with this form. 

This form also allows them to calculate their Social Security and Medicare tax liability. With this form, you can avoid confusion over small business tax dates.

What is Form 944 for?

Form 944 helps small businesses simplify their filing process by filing once a year.

Who needs to file Form 944?

Businesses with a tax liability below $1,000 can file Form 944. Note that if the IRS notified you in writing to file Form 944, you must file it even if your tax liability for 2024 exceeds $1,000.

Form 1040

US taxpayers use Form 1040 to file their annual income tax return. Business owners and employees can also declare their filing status, take tax deductions, claim credits, and determine how much they owe the IRS. Unlike other tax forms, almost everyone files Form 1040. 

What is Form 1040 for?

Business owners and employees use Form 1040 to report profit and loss.

Who needs to file Form 1040?

Everyone who earns income, except tax-exempt individuals, must file Form 1040.

What are the different Schedules for Form 1040?

While Form 1040 can cover an individual's profit and loss, it can't accommodate sole proprietors. For this form, self-employed business owners can use different schedules to provide more information. The most popular ones include:

Schedule C

Schedule C reports income or loss from a business you operated or a profession you practiced as a sole proprietor. Note that if your business is a sole proprietorship, you need to attach Schedule C to your Form 1040 each year. 

Form Schedule C allows you to report your income and all related expenses to the IRS. 

Schedule ES

Use Form 1040-ES to calculate and pay your estimated tax. Estimated tax is the method used to pay tax on income that is not subject to withholding. Examples include:

• Earnings from self-employment
• Interest
• Dividends
• Rent
• Alimony

Taxpayers must submit quarterly payments by:

• April 15
• June 15
• Sept 15 
• Jan 15 of the following year

If the due date for an estimated tax payment falls on a Saturday, Sunday, or legal holiday, you can make on-time payments by the next business day. 

Schedule SE

Schedule SE calculates Social Security and Medicare taxes due on net earnings from self-employment. All self-employed individuals must file Schedule SE. Understanding your self-employment tax is crucial, as it consists of taxes that self-employed individuals must pay.

Form 1065

Form 1065, also known as the US Return of Partnership Income, declares business income or loss. If you file as a partnership or a multimember LLC electing to be treated as a partnership, you’ll file Form 1065 each year to declare profits, losses, deductions, and credits.

What is Form 1065 for?

Partnerships and multimember LLCs use Form 1065 to report income. 

Who needs to file Form 1065?

Businesses structured as partnerships need to file Form 1065. 

Schedule K-1 (Form 1065)

Schedule K-1 is used to report each partner's share of the partnership's income, deductions and credits.

Form 1099-NEC

Businesses send Form 1099-NEC to independent contractors or 1099 employees whom they paid at least $600 within a calendar year. It reports contractor income similar to how Form W-2 reports employee income.

What is Form 1099 for?

Form 1099 reports pay to independent contractors. 

Who needs to file Form 1099?

Any business that hires a freelancer or contractor must file a 1099-NEC.

What are the different types of 1099 forms? 

While Form 1099-NEC focuses on contractors, other IRS Schedules account for other types of income. 1099s can fall into different categories that can include dividends, interest, and other forms of income. 

The most popular ones include:

• 1099-DIV: Reports on income from stocks and mutual funds. Investors will receive a 1099-DIV that reports their dividend income.
• 1099-INT: Income from checking, savings, or other bank accounts that earn interest goes here. 
• 1099-MISC: Reports miscellaneous payments above $10 in royalties or broker payments in lieu of dividends or tax-exempt interest. Alternatively, you may need to file Form 1099-MISC if you paid over $600 for rents or an attorney’s service.

Form 1120

Form 1120, also referred to as the US Corporation Income Tax Return, reports corporate income or losses. If your business files taxes as a regular corporation, you need to file Form 1120 each year.

What is Form 1120 for? 

Corporations use Form 1120 to report profit or loss. 

Who needs to file Form 1120?

C Corporations and LLCs that elect to file as a C corporation must file Form 1120.

Form 1120-S

S Corporations and LLCs that file as S-corps submit Form 1120-S to report on income or losses. Unlike C-corps, S corporations don’t face double taxation. Instead, profits pass through to owners, and the 1120-S accounts for this tax difference. Because filing as an S-corp only incurs one round of income taxes, most small businesses prefer this approach.

What is Form 1120-S for?

Form 1120-S is used for reporting S corporation's profit or loss.

Who needs to file Form 1120-S? 

S Corporations and LLCs that elect to file as an S corporation.

Form 2553

Form 2553 allows LLCs and sole proprietors to elect S-corp tax status and file an 1120-S for earnings. Businesses that file Form 2553 must meet the legal requirements for running an S corporation.

What is Form 2553 for?

Form 2553 is used for registering your business as an S-corp for tax purposes. 

Who needs to file Form 2553?

LLCs and sole proprietors who want to file as an S corporation must file Form 2553.

Form 4562

You would file Form 4562 to report depreciation and amortization expenses from your trade or business. Form 4562 commonly reports depreciation and amortization of business property such as:

• Equipment 
• Furniture and Fixtures
• Leasehold Improvements
• Buildings
• Loan fees and other intangible assets

What is Form 4562 for? 

Form 4562 is used for reporting deductions for depreciation and amortization.

Who needs to file Form 4562?

You must file Form 4562 if you are claiming any of the following:

• Depreciation for property placed in service during the current tax year
• Section 179 deduction (which may include a carryover from a previous year)
• Depreciation on any vehicle or other listed property
• A deduction for any vehicle reported on a form other than Schedule C
• Amortization of costs that begins during the current taxable year

Form 7004

Businesses use Form 7004 to request an extension on their tax filing due date. 

What is Form 7004 for? 

Business owners use Form 7004 to request an extension on income tax returns. 

Who needs to file Form 7004?

Businesses don’t have to submit this form unless they seek a tax filing extension. 

Form 8829

Form 8829 deducts eligible living costs like rent and utilities as business expenses. Business owners who work from home—partially or full-time—will find Form 8829 helpful for identifying which expenses qualify as tax deductible.

Note: The IRS is very specific about which costs you can deduct and what constitutes a workspace. So, do your research or consult a tax professional before claiming deductions.

What is Form 8829 for? 

Use Form 8829 to deduct expenses for business use of your home. 

Who needs to file Form 8829?

Form 8829 isn’t a required document. However, self-employed workers who create a workspace in their homes may file.

Form 8832

Limited Liability companies use Form 8832 to change their default tax classification. By default, the IRS taxes LLCs like partnerships or proprietorships. With this form, LLCs can file as a corporation instead.

What is Form 8832 for?

Use Form 8832 to change your LLC’s tax status. 

Who needs to file Form 8832?

LLC owners only need to file Form 8832 if they want to change their tax status.

Form SS-4

New businesses use Form SS-4 to apply for an employer identification number (EIN). An EIN is a nine-digit number that the government assigns to employers, sole proprietors, corporations, and partnerships for tax filing and reporting purposes. It functions as a unique identification number for your business.

What is Form SS-4 for? 

Businesses use Form SS-4 to receive an EIN tax ID.

Who needs to file Form SS-4?

Partnerships and corporations that need an EIN to operate legally must file Form SS-4. Sole proprietors may also choose to file with an EIN. Businesses can also receive an EIN instantly by applying online. 

Form W-2

Send Form W-2 to each of your employees; this form reports their annual wages and the amount of taxes withheld from their paychecks. As a small business owner, you’re responsible for issuing this form to your employees no later than Jan. 31 and submitting copies to the IRS. 

To streamline filing, employers can order printed W-2 kits for their employees. 

What is Form W-2 for? 

Form W-2 is used to report income earned from an employer to employees and the IRS and the Social Security Administration. 

Who needs to file Form W-2?

All businesses with employees must file Form W-2 to report employees' earnings to the IRS and to the employees. 

Form W-3

Form W-3 is a business tax form that summarizes all the wages you paid to employees during the tax year. 

What is Form W-3 for? 

 Form W-3 reports combined employee income to the IRS and Social Security Administration. 

Who needs to file Form W-3?

Employers that pay employee wages need to file Form W-3.

Form W-4

Your employees fill out Form W-4, which reports how much tax you—the employer—should withhold from their paycheck. Your employees will report their filing status and adjustments to their tax withholding on Form W-4. Employees may also instruct you to withhold more taxes from their pay if they work several jobs or if their spouse earns income, too.

What is Form W-4 for? 

Employees fill out Form W-4 to ensure employers withhold the correct amount of federal income tax. 

Who needs to file Form W-4?

All employees must file Form W-4, except:

• Self-employed workers
• Independent contractors
• Freelancers

Form W-9

Independent contractors submit a W-9 form to share their Taxpayer Identification Number (TIN). The form may go to a person, financial institution, or business. Employers use contractors’ TINs to make sure they comply with 1099 filing requirements. Contractors can submit an Employer Identification Number or their Social Security number as their TIN.

What is Form W-9 for? 

Form W-9 shares a contractor’s TIN with a business, bank, or other third party. 

Who needs to file Form W-9?

Independent contractors and freelancers must file Form W-9.

Penalties for incorrect or late filings

Failing to file your small business tax forms on time can incur fines and fees that grow the longer you delay submission. It's essential to stick to the due dates to avoid these penalties.

The IRS imposes varying penalties for late filings:

To avoid penalties, ensure you file your tax forms accurately and on time. If you face unexpected delays, you can request an extension using Form 8809 for additional time to complete your filing. 

Additional tax resources for small businesses

Between tax schedules, business structures, and filing dates, business owners should use every resource available. Thankfully, you can check out these blog posts to prepare for your filing:

• How to file small business taxes
• Small business tax preparation checklist
• How to file small business tax returns 
• Small business 1099
• Tax basics for LLCs

Find peace of mind come tax time

Filing small business tax forms can be complex, but reliable accounting software can make it easier. QuickBooks Live simplifies tax management by streamlining filing, ensuring accurate records, and maximizing deductions for a smoother tax season.

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