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This form is for corporations in Massachusetts that are electing to file a combined return for corporate excise taxation purposes, reporting their net income and complying with state tax laws. Instructions
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How to fill out form 355c

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How to fill out Form 355C

01
Begin by downloading Form 355C from the official website.
02
Fill out the top section with your name, address, and Social Security number.
03
Complete the identification section with your business details, including the type of business and tax ID number.
04
Provide financial information, including income and expenses, in the required sections.
05
Review the form for any errors or missing information.
06
Sign and date the form at the bottom.
07
Submit the completed Form 355C to the appropriate tax authority.

Who needs Form 355C?

01
Business owners and self-employed individuals who are required to report their income and expenses for tax purposes need Form 355C.
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People Also Ask about

Partnerships and S-Corporations file information returns, Form 1065 or Form 1120-S, respectively, to report income that flows through to individual partners. In contrast, C-corporations use Form 1120 to pay corporate income tax on their profits.
C corporations use Form 1120 to calculate their taxes due. S corporations use Form 1120S as an information return.
The Massachusetts Corporation Excise Return Form 355 is designed for corporations operating within the state to report their income and comply with tax laws.
Form 1120 is the tax form used by C Corporations and LLCs filing as a corporation to report profits and losses, tax deductions, credits and income.
A general business corporation is typically subject to the tax jurisdiction of Massachusetts when it owns or uses property in the state, has employees in the state or is otherwise doing business in the state.
Each entity registered with the Massachusetts Secretary of the Commonwealth (the “Secretary”) may be required to register for corporate excise and file an annual corporate return with the Massachusetts Department of Revenue (the “DOR”).
C Corporations must pay federal income taxes if they have taxable income after claiming all available credits and deductions. In some states, state-level income and excise taxes also apply. Additionally, C Corps may have to pay both federal and state employment taxes.

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Form 355C is a tax form used by certain corporations to report their corporate income and calculate the amount of tax owed to the state.
Corporations doing business in the state or those that are subject to state taxes, including both domestic and foreign corporations, are required to file Form 355C.
To fill out Form 355C, taxpayers need to provide their corporate information, financial data, income statements, and any applicable deductions. Detailed instructions are usually available with the form.
The purpose of Form 355C is to report a corporation's income, calculate its tax liability, and ensure compliance with state tax laws.
Information that must be reported includes the corporation's name, address, federal employer identification number (EIN), income details, deductions, credits, and calculations of the tax owed.
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