Triva isn't available right now.
Check out the support page for our phone number and hours
Solutions
Law firms
Tax, audit & accounting firms
Success stories
-
A true competitive advantage
Law firm Zarwin Baum’s embrace of generative AI as the natural next step in the evolution of legal work and their adoption of CoCounsel Legal has helped them achieve remarkable efficiency gains and improved client relationships.
-
Workflow transformation drives impact
Brinks, a global leader in secure logistics and security solutions, used CoCounsel to reimagine what was possible with AI tools, turning legal challenges into a competitive advantage.
-
The forefront of audit tech
A better auditing workflow solution was the answer to multiple challenges faced by The Mercadien Group. Find out how they achieved greater efficiency by embracing Cloud Audit Suite.
Questions? We are here to help.
Products
Legal
Trade & supply
Tax, audit & accounting
- 1040SCAN
- Audit Intelligence Analyze
- CoCounsel Audit
- CoCounsel Tax
- Ready to Advise
- Ready to Review
- View all
Corporate tax
Recommended products
-
CoCounsel Legal
Transform your work with the only AI legal solution uniting research, drafting, and document analysis in a single experience. Designed by legal experts and built on trusted content and advanced AI, CoCounsel Legal accelerates multistep work so you can better serve your clients and grow your business.
-
CoCounsel Tax
Transform your tax practice with CoCounsel Tax, an AI-powered assistant that combines trustworthy answers, automation, and firm knowledge into one seamless platform. Enhance efficiency, reduce risk, and improve client confidence with CoCounsel Tax.
-
CLEAR Investigate
Intelligently surface critical connections and insights in actionable format through AI-driven research workflows seamlessly integrated with the trusted and transparent CLEAR platform. Accelerate investigations and empower your team to make strategic decisions with confidence.
Questions? We are here to help.
Purchase
Buy solutions
Resources
Insights
Events
Product training
Product communities
Developers
Highlights
-
2026 SKILLS showcase
Join weekly sessions to experience in-depth demonstrations of the leading legal AI products while connecting with strategic law firm leaders in knowledge management, innovation, and AI.
-
Ghosts on the ledger
Payroll fraud is a major compliance risk. Learn how payroll analytics and AI-powered tools can help exorcise phantom employees and employers.
-
Future of professionals report 2025
The Thomson Reuters Future of Professionals Report 2025 reveals how AI continues to shape professional work — and what it takes to get ahead. This year’s report shows that increased efficiency, productivity, and cost savings top the list of benefits professionals attribute to AI, making it indispensable for organizations facing rapid change.
E-file Form 1120 for New York State
Electronic filing mandate
New York mandates electronic filing for tax return preparers subject to the mandate in a previous period, or who prepared at least 1 authorized tax document for more than 10 different taxpayers during the calendar year, including tax documents for prior periods, and uses a tax software to prepare 1 or more of these tax documents. Tax documents that can't be e-filed aren't included in the count to determine if the 10 taxpayer threshold has been met.
New York mandates electronic filing for corporations that prepare tax documents themselves, without the assistance of a tax professional, use approved e-file tax software to prepare their return, or use a computer to prepare, document, or calculate an extension or estimated tax payment, and have broadband internet access.
You can electronically file tax documents through software that supports electronic filing or online via the New York State Online Services for Businesses.
Taxpayers can no longer opt-out of electronic filing. If you have good cause to not electronically file, you need to maintain adequate documentation. You will need to give that documentation to New York if your client gets a penalty bill for failing to file the return or extension electronically.
If you don’t file and pay electronically when necessary to do so, the department will impose penalties on both you and your clients.
A $50 per tax document or payment penalty applies to all other taxpayers.
- A paper document is subject to the penalty imposed for that tax type for failure to file a return or report.
- Any overpayment claimed on a paper tax document that you needed to file electronically isn't eligible to receive interest until you file the document electronically.
Returns supported for electronic filing
You can file the following return types electronically:
- C Corporation
- S Corporation
- Consolidated/combined
- Amended
- Short year
- Estimates (filed separately from return)
- Extension
- Foreign corporation (CT-245/240)
Returns not supported for electronic filing
You can't file the following return types electronically:
- Withholding
- Composite
Signature requirements for electronic filing
You need to complete and sign Form TR-579-CT before you file the return electronically. Enter the signature date on the NYELF screen or leave it blank if it matches the federal date you entered on the federal ELF screen. Don't mail Form TR-579-CT. The preparer needs to hold the original form for 3 years in case the state of New York asks for it.
Resubmit returns
If you need to make a change to an e-filed return accepted by the state of New York, amend the return and file it electronically.
If New York rejects the return, you may make the changes, correct the rejection, and resubmit. If you can retransmit the return electronically, you need to file and have New York accept it by the return due date, or 7 calendar days after you initially received the rejected acknowledgment, whichever is later.
Attachments
If the federal return isn't supported for electronic filing by the IRS, you can still file the New York return electronically. UltraTax CS will attach the federal return as a PDF.
New York accepts PDF attachments in the electronic file and doesn't have specific naming conventions for the files you attach. If you're calculating Forms CT-324, DTF-625, or DTF-686-ATT, you need to attach them manually to the electronic filing. The following forms automatically generate as PDFs attached to the electronic file.
- CT-225-A/B
- CT-399
- CT-600
- CT-51
- CT-40
- CT-41
- CT-236
- CT-239
- CT-242
- CT-243
- CT-250
- CT-259
- DTF-622
- DTF-624
- DTF-630
- DTF-631
- Required statements
- General footnote
- Elections
Payment methods
New York accepts electronic funds withdrawal (direct debit), electronic funds transfer (EFT), or check or money order for balance due returns and extensions. You can make partial payments.
You need to include bank information and a requested payment date when requesting EFW. New York uses the bank information you enter on the federal Bank screen. If you have different bank information for New York, use the NYBank screen in the General folder. If you're e-filing after the due date, the requested payment date needs to match the date you e-file the return.