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A Guide To C Corporation Taxation

C Corporation taxes can feel like a challenge, especially when you add double taxation to the mix. We'll take you through the company taxation definition, who pays corporation tax and are federal income taxes deductible for C corporations. This information is good to know as a business owner, but you can always get unlimited tax support from FlyFin's expert CPA team if you need it. The Ultimate Plan subscription is perfect for business owners looking for corporate tax help. Key takeaways:
  • C Corporations must file Form 1120 and pay federal income taxes based on their profits, with taxes calculated before considering the tax expense itself.
  • Federal income taxes are not deductible for C Corps, meaning they can’t lower their taxable income by the amount they owe in taxes.
  • Dividends paid to shareholders are taxed twice—once at the corporate level and again on shareholders' personal income, while salaries and bonuses are only taxed once.

Table of contents

How do you define corporate tax?...Read more

Who pays corporate tax?...Read more

What taxes do corporations pay?...Read more

What tax forms do corporations need?...Read more

Are federal income taxes deductible for C Corporations?...Read more

How do you define corporate tax?

Corporation tax, often referred to as corporate income tax, is the type of taxation on a corporation's profits. In simple terms, the corporation tax definition involves a government-imposed tax on a company’s earnings after expenses have been deducted. When we talk about the corporate income tax definition in economics, we’re discussing the tax that corporations pay on their net income, which is what’s left after accounting for costs like salaries, rent and other business expenses. This type of taxation is unique to corporations and differs from other business structures like sole proprietorships or partnerships, where taxes are “passed through” to individual owners. For a C Corp, understanding how this tax works is essential because it directly affects how much profit remains in the business after taxes are paid.

Who pays corporate tax?

When we talk about corporate tax, we're referring to a specific kind of tax that businesses, especially C Corporations, are required to pay on their profits. To define company tax more clearly, it’s a mandatory financial charge that the company must pay to the government on its income. According to the company taxation definition, this tax is calculated based on the company's net income, which is the total revenue after subtracting all expenses. The corporation tax meaning refers to the taxes specifically tied to corporations, distinguishing it from taxes that apply to individuals or other business structures. So, who actually pays this company tax? Technically, it’s the corporation that is directly responsible for paying these taxes to the government. However, the effects of paying these taxes often ripple out to various stakeholders. For example, shareholders might see smaller dividends since a portion of the profits is used to cover tax expenses. Similarly, employees could be indirectly affected if the company has less capital available for salaries or expansion. Even customers might feel the impact if the corporation raises prices to offset the tax burden.

What taxes do corporations pay?

Corporations face several types of taxation, each affecting their financial strategy in different ways. To define company tax, it’s the range of taxes that a corporation is required to pay based on its operations and income. The primary type of taxation on a corporation is federal corporate income tax, which is levied on the company’s net income after all business expenses have been deducted. This tax rate is generally flat, but it can vary depending on the corporation's size and specific circumstances. C Corporations pay a 21% federal tax on their profits. This means they’re taxed on their earnings after subtracting expenses from their revenue. Corporations need to file a tax return using Form 1120 and pay taxes on their profits. They have to figure out how much tax they'll owe for the year and make quarterly payments to the IRS. These payments are due on the 15th of the 4th, 6th, 9th and 12th months of their tax year. If they follow the calendar year, those dates are April 15, June 15, September 15 and December 15. This helps keep their taxes up to date throughout the year. In addition to federal income tax, corporations also deal with state income taxes, which vary widely depending on the state in which they operate. Some states impose these taxes, while others do not. Corporations are also responsible for payroll taxes, which include Social Security, Medicare and unemployment insurance. These taxes are withheld from employees' paychecks and must be paid by the corporation to the government. Property taxes are another significant expense. They are applied to any real estate owned by the corporation, like office buildings or manufacturing plants. Additionally, corporations may be subject to sales taxes on the goods and services they sell, and excise taxes on specific products like fuel or alcohol. When a corporation pays dividends to its owners, the owners must report and pay personal income tax on those dividends. Since dividends aren't tax-deductible, the corporation also pays taxes on them. This results in double taxation—once for the corporation and again for the shareholders. Smaller corporations often avoid this issue because they usually pay their owners with tax-deductible salaries and bonuses instead of dividends. If the corporation's owners work for the company, they pay personal income tax on their salaries and bonuses just like other employees. Since salaries and bonuses are deductible business expenses, the corporation doesn’t pay taxes on them.

What tax forms do corporations need?

Corporations need to handle several important tax forms to comply with corporate tax law. To define corporate tax, it's the tax a corporation pays on its profits, and company taxation definition refers to the broader set of rules and forms that govern how these taxes are reported and paid. The primary form for reporting income is Form 1120. This form helps calculate how much tax the corporation owes based on its profits and expenses, making it central to understanding corporate tax obligations. Corporations with employees must also file Form 941 quarterly. This form reports the payroll taxes withheld, including Social Security and Medicare contributions. For annual federal unemployment tax, corporations use Form 940. This ensures that unemployment benefits are covered for their workers. If a corporation pays dividends to shareholders, it needs to use Form 1099-DIV to report these payments. For those with international activities or foreign assets, you’ll need forms like Form 5471 or Form 8865.
Infographic entitled Tax Forms for C Corps showing important forms for corporations.

Are federal income taxes deductible for C Corporations?

Under corporate tax law, federal income taxes are not deductible for C Corporations. To understand the corporation tax meaning, it’s important to know that when a C Corp calculates its taxable income, it cannot deduct the amount it owes in federal income taxes from its total income. Instead, the corporation’s taxable income is determined before considering the federal income tax expense itself. In practical terms, this means that when you’re figuring out how much tax your C Corp owes, you start with your gross income and subtract all your business expenses. However, federal income taxes themselves are not considered a deductible expense. So, the corporation tax meaning here is that the tax liability calculated is based on income after all other legitimate business deductions. Knowing these specifics helps manage your C Corp tax liability and optimize financial planning.

C Corp tax deductions

C Corporation tax deductions can lower your tax bill. Owners can carry forward corporation business losses to offset tax liability.

C Corp tax dividend rate

Learn how C Corp dividends are taxed twice and how tax rates vary for qualified versus ordinary dividends. Find out how S Corp dividends differ in tax treatment.

Filing C Corp taxes

Filing C Corp taxes means knowing filing deadlines, important tax forms, business deductions and paying on time. Form 1120 is the main C Corp tax form.

C Corp Tax Return Deadline: An All-Inclusive Guide for Independent Contractors

Find out when the C Corp tax return is due and how to stay out of trouble. Learn the advantages of cybersecurity safeguards for online tax filing and tax software for C Corp filings. Receive professional advice on meeting the deadlines for your C Corp tax return.

C Corp tax deductions

C Corporation tax deductions can lower your tax bill. Owners can carry forward corporation business losses to offset tax liability.

C Corp tax dividend rate

Learn how C Corp dividends are taxed twice and how tax rates vary for qualified versus ordinary dividends. Find out how S Corp dividends differ in tax treatment.

Filing C Corp taxes

Filing C Corp taxes means knowing filing deadlines, important tax forms, business deductions and paying on time. Form 1120 is the main C Corp tax form.

C Corp Tax Return Deadline: An All-Inclusive Guide for Independent Contractors

Find out when the C Corp tax return is due and how to stay out of trouble. Learn the advantages of cybersecurity safeguards for online tax filing and tax software for C Corp filings. Receive professional advice on meeting the deadlines for your C Corp tax return.

What’s FlyFin?

FlyFin caters to the tax needs of freelancers, gig workers, independent contractors and sole proprietors. But anyone can file taxes through FlyFin! FlyFin tracks all your business expenses automatically using A.I. to find every possible tax deduction. Then, the CPA team files a guaranteed 100% accurate tax return for you – to save you a couple thousand dollars and a ton of time on your taxes. Download the FlyFin app and have your taxes filed in less than fifteen minutes, saving time and more money on your taxes than last year, guaranteed.
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