• 1120S/1065 Extension Request Form

  • Filing Deadlines & Extensions

    The filing deadline for a return depends upon the type of entity that is filing. Regardless of which kind of entity is filing, all extensions must be filed with IRS, states and cities by the original due date of the return.

    Entities Filing Calendar-Year Tax Returns
    Entity Filing Return Form Filed Filing Deadline Length of Extension Extension Deadline
    S-Corporation  1120S March 16 6 Months September 15
    Partnership or Multimember LLC 1065 March 16 6 Months September 15
    C-Corporation 1120 April 15 6 Months October 15
    Trust or Estate 1041   6 Months September 30
    Individual 1040 April 15 6 Months October 15
    Non-Profit Organziation 990 May 15 6 Months November 15

     

    Entities Filing Fiscal-Year Returns
    Entity filing Return Form Filed Filing Deadline Length of Extension
    Partnership or Multimember LLC 1065 15th day of third month following end of entity's tax year 6 Months
    C Corporation 1120 15th day of third month following end of entity's tax year 6 Months
    Estate 1041 15th day of third month following end of entity's tax year 5 1/2 Months
    Non-Profit Organization 990 15th day of third month following end of entity's tax year 6 Months

    Filing Deadline for Most Partnerships and S Corporations
    Most partnerships and S corporations have a March 16 deadline.  Extensions must be filed by the original due date of the return, which is usually March 15.  The extended due date for partnership and S corporation tax returns is September 15.

    No extension to pay tax

    An extension of time to file does not give you more time to pay your tax.  If you believe you will owe money when you file, you should include the amount you think you will owe with your extension.  You can pay what you owe with your extension in any of the following ways:

    1. Direct debit of your bank account
    2. Mailing a check
    3. Via the IRS and/or state website payment pages

    Requesting the Extension

    Complete this form if you would like Pacific Northwest Tax Service to file an extension of time to file your IRS and/or state tax return. 

    Submit a Separate Extension Request Form for Each Person or Business

    If you require both business and personal extensions, you must submit a separate extension request for each personal or business return you need an extension for.  If you have more than one business, complete a separate extension form for each business.

    Fee

    The fee charged for filing an extension is $80 for existing clients and $230 for new clients.  The fee is in addition to the cost of tax preparation.

    Your extension can be filed with our without calculating the amount of any taxes you might owe or refund you may be entitled to.  The cost of determining whether you owe or have a refund is not included in the fee for filing an extension.  

    Required Information

    We need specific information and your authorization before we file your extension.  Please complete this form to provide the required information and to pay the associated fee for this service.

    • S-Corporation or Partnership Extension Information 
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    • IRS Extension 

    • Filing a Form 1065 or 1120-S extension doesn’t require paying federal income tax at the entity level because these are pass-through entities. The partnership or S-Corporation itself doesn’t pay federal income tax, but the income flows through to the owners or shareholders, who report it on their personal returns. The extension only gives more time to file the return, not to delay any taxes that might be owed by the owners personally.

    • State of Oregon Extensions 

    • Making Payment to Oregon

      Your Oregon return is automatically extended when you file a federal extension. There is no separate extension that is filed for Oregon, except where you will timely file a federal return, but need more time to file Oregon.

      It is not possible to pay tax to Oregon via direct debit of your bank account when you file the federal extension.  You can pay tax to Oregon in one of the following ways:

      1. PNW Tax can provide you with a voucher which you will mail to the Oregon Department of Revenue with a check.
      2. You can login to your Oregon Revenue Online account and pay your tax using this system.
      3. Download a blank
        • Oregon Corporation Payment Voucher Form OR-20V, or
        • Oregon Partnership Return Payment Voucher Form 65-V, then
        • Print the voucher then complete and then mail to the Oregon Department of Revenue with the minimum required payment of $150.

      Please select one of the answers below to provide us with instructions on the filing of your Oregon extension.

    • We do not offer the service of filing the annual excise tax payment of $150 as an extension. 

    • Metro SHS Tax Return Extension 

    • Metro Selective Housing Services (SHS) Tax

      Businesses with gross receipts over $5 million are required file a return and pay tax to Metro if they have business income from inside the Metro Services District. 

      Note: Metro covers nearly all of the Portland Metropolitan Area, including most of Multnomah, Washington and Clackamas counties.  You can see if your business is inside Metro at this link.

      Extensions,

      The City of Portland administers collection of the PFA and SHS taxes.  You can pay your tax and file an extension on the City website, or you can mail a paper extension with a check.

    • Corporate Activity Tax (CAT) Return Extension 

    • The CAT applies to businesses (and unitary groups of businesses) that do business in Oregon and have sufficient commercial activity in the state. It is not limited to just corporations.

      If a business has more than $1 million commercial activity in Oregon, then they must file a CAT return and pay tax if taxable activity exceeds this amount.

    • Oregon encourages taxpayers to submit the extension request through Revenue Online, its secure business tax portal. This is typically easier and faster than mailing paper forms.

    • Additional Information 
    • Terms of Engagement 

    • Terms and conditions

      You are using this form to ask our staff to prepare and file an extension for your 2025 tax return. Upon receipt of this form and payment of the required fee, our staff will attempt to contact you. We will notify via email when your extension form has been submitted to IRS.

      Oregon does not have a direct extension of its own, however your Oregon return is automatically extended when your federal extension is filed.

      Submission of this form does not guarantee that your extension will be timely filed and does not indicate a contractual relationship with Pacific Northwest Tax Service.  
         
      If you do not receive a phone call or email from our staff, you should assume your extension has NOT been filed and follow up by phoning our offices at 503-646-5600 or 503-288-2000.

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          Extension - Current ClientThis is the fee to file an electronic extension for an existing client for whom Pacific Northwest Tax Service filed a 2024 return, or who is currently working with staff to prepare your 2025 return. This fee covers the cost of filing the extension only, and is in addition to the cost of preparing the tax return or other service charges.
          $80.00
            
          Extension - New ClientThis is the fee to file an extension for a new client. Please pay this fee, provide all information requested in this Extension Request Form, and provide a copy of your photo ID.
          $230.00
            
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