Tuesday, September 1, 2026

Recent Development for Tax Products

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Recent Developments for Tax Products 09/01/2026

Tax Products Topics

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All Tax Products

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Post-release changes to tax forms, instructions,
and publications

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and Publications


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The Following Early Release(s) have been posted

Early Releases are draft versions of tax forms, instructions, and publications. Do not file draft forms and do not rely on information in draft instructions or publications.

Product Title Rev. Date Posted
Instruction 8966 Instructions for Form 8966, FATCA Report Dec 2026 09/01/2026
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QuickAlerts - Technical - Annual System Update for the Modernized e-File (MeF) Assurance Testing System (ATS)

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QuickAlerts for Tax Professionals

September 1, 2026

Subject: Annual System Update for the Modernized e-File (MeF) Assurance Testing System (ATS)


ATS Cutover September 28, 2026 – October 13, 2026

MeF ATS will be unavailable beginning Monday, September 28, 2026, 9:00AM Eastern time until Tuesday, October 13, 2026, 9:00AM Eastern time.

The ATS environment will be available for Tax Year 2026 testing starting on Tuesday, October 13, 2026, 9:01 a.m. Eastern time.

Please refrain from accessing the testing system during this maintenance window.

Please monitor the MeF Operational Status page for any future updates.

Important Notes

  • New R10.A WSDLs (Web Service Definition Language) will be installed in ATS. Software developers will need to use the new WSDLs to connect to MeF A2A (Application to Application) services. A QuickAlerts bulletin was issued on September 1, 2026, with details on the WSDLs.
  • Use "la.alt" URL (la.alt.www4) for the ATS environment, and use "la" main URL (la.www4) for the Production environment.
  • A new version of the A2A Toolkit will be released prior to the ATS startup. This release contains updated WSDLs and is a mandatory upgrade for all ATS users. All A2A Toolkit users will be notified by email with instructions on how to download and install the new version.

We apologize for any inconvenience this may cause.

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If you have an idea or a question related to QuickAlerts you can contact us by e-mail. Submissions which are not related to QuickAlerts will not be processed. If you have tax related questions you should pursue normal customer service channels provided on IRS.gov.

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QuickAlerts - Technical - New Modernized e-File (MeF) Web Service Definition Language (WSDLs) are available

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QuickAlerts for Tax Professionals

September 1, 2026

Subject: New Modernized e-File (MeF) Web Service Definition Language (WSDLs) are available


WSDLs for Tax Year 2026 / Processing Year 2027 are now available.

The new WSDLs are scheduled to be installed in the MeF Assurance Testing System (ATS) environment in early Fall of 2026. They will be required for MeF Production for Processing Year 2027.

Please use "la.alt" URL (la.alt.www4) for the ATS environment, and "la" main URL (la.www4) for the Production environment.

The new WSDLs are available in the e-Services Secure Object Repository (SOR) mailbox located here. To access the WSDLs, the following is needed:

  • Active e-Services account
  • Listed on an e-File application with the provider option of Software Developer or State
  • Software Developers must have at least one associated tax type of 1040x, 1041, 1042, 1045x, 1065, 1120x, 1139, 2290, 2350, 4720, 4868, 5227, 5330, 56, 7004, 709, 720, 8038CP, 8849, 8868, 8892, 9465, 94x, 990x.

You may have several messages in your account. Please open all of them to find the set you would like to download. After 60 days the messages are purged. If you have the appropriate role and do not have the WSDLs available for download within 48 hours, please contact the MeF Mailbox with the Company Name and ETIN.

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Thank you for subscribing to QuickAlerts for Tax Professionals, an IRS e-mail service.

If you have an idea or a question related to QuickAlerts you can contact us by e-mail. Submissions which are not related to QuickAlerts will not be processed. If you have tax related questions you should pursue normal customer service channels provided on IRS.gov.

If you know someone who might want to subscribe to this mailing list, please forward this message to them so they can subscribe.

This message was distributed automatically. Please Do Not Reply To This Message.

 


This email was sent to business.solutions.ve@gmail.com by: Internal Revenue Service (IRS) · Internal Revenue Service · 1111 Constitution Ave. N.W. · Washington, D.C. 20535 Granicus Communications logo

Recent Development for Tax Products

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Recent Developments for Tax Products 09/01/2026

Tax Products Topics

Forms & Publications

All Tax Products

Draft Tax Products

Help with forms and instructions

Post-release changes to tax forms, instructions,
and publications

Comments on Tax Forms,
and Publications


IRS Resources

Taxpayer Bill of Rights

Contact My Local Office

File your tax return

Newsroom

Let us help you

Taxpayer Advocate Service

Where to File


The Following Early Release(s) have been posted

Early Releases are draft versions of tax forms, instructions, and publications. Do not file draft forms and do not rely on information in draft instructions or publications.

Product Title Rev. Date Posted
Instruction 990 Instructions for Form 990, Return of Organization Exempt From Income Tax 2026 09/01/2026
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This email was sent to business.solutions.ve@gmail.com by: Internal Revenue Service (IRS) · Internal Revenue Service · 1111 Constitution Ave. N.W. · Washington, D.C. 20535 Granicus Communications logo

Recent Development for Tax Products

Having trouble viewing this email? View it as a Web page.                                                                                                                                                 Bookmark and Share

IRS.gov Banner
Recent Developments for Tax Products 09/01/2026

Tax Products Topics

Forms & Publications

All Tax Products

Draft Tax Products

Help with forms and instructions

Post-release changes to tax forms, instructions,
and publications

Comments on Tax Forms,
and Publications


IRS Resources

Taxpayer Bill of Rights

Contact My Local Office

File your tax return

Newsroom

Let us help you

Taxpayer Advocate Service

Where to File


The Following Early Release(s) have been posted

Early Releases are draft versions of tax forms, instructions, and publications. Do not file draft forms and do not rely on information in draft instructions or publications.

Product Title Rev. Date Posted
Instruction 8815 Instructions for Form 8815, Exclusion of Interest From Series EE and I U.S. Savings Bonds Issued After 1989 2026 09/01/2026
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This email was sent to business.solutions.ve@gmail.com by: Internal Revenue Service (IRS) · Internal Revenue Service · 1111 Constitution Ave. N.W. · Washington, D.C. 20535 Granicus Communications logo

Recent Development for Tax Products

Having trouble viewing this email? View it as a Web page.                                                                                                                                                 Bookmark and Share

IRS.gov Banner
Recent Developments for Tax Products 09/01/2026

Tax Products Topics

Forms & Publications

All Tax Products

Draft Tax Products

Help with forms and instructions

Post-release changes to tax forms, instructions,
and publications

Comments on Tax Forms,
and Publications


IRS Resources

Taxpayer Bill of Rights

Contact My Local Office

File your tax return

Newsroom

Let us help you

Taxpayer Advocate Service

Where to File


The Following Early Release(s) have been posted

Early Releases are draft versions of tax forms, instructions, and publications. Do not file draft forms and do not rely on information in draft instructions or publications.

Product Title Rev. Date Posted
Instruction 5695 Instructions for Form 5695, Carryforward of Residential Energy Credit 2026 09/01/2026
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This email was sent to business.solutions.ve@gmail.com by: Internal Revenue Service (IRS) · Internal Revenue Service · 1111 Constitution Ave. N.W. · Washington, D.C. 20535 Granicus Communications logo

Recent Development for Tax Products

Having trouble viewing this email? View it as a Web page.                                                                                                                                                 Bookmark and Share

IRS.gov Banner
Recent Developments for Tax Products 09/01/2026

Tax Products Topics

Forms & Publications

All Tax Products

Draft Tax Products

Help with forms and instructions

Post-release changes to tax forms, instructions,
and publications

Comments on Tax Forms,
and Publications


IRS Resources

Taxpayer Bill of Rights

Contact My Local Office

File your tax return

Newsroom

Let us help you

Taxpayer Advocate Service

Where to File


The Following Early Release(s) have been posted

Early Releases are draft versions of tax forms, instructions, and publications. Do not file draft forms and do not rely on information in draft instructions or publications.

Product Title Rev. Date Posted
Instruction 1118 (Schedule L) Instructions for Schedule L (Form 1118), Foreign Tax Redetermination Dec 2026 09/01/2026
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This email was sent to business.solutions.ve@gmail.com by: Internal Revenue Service (IRS) · Internal Revenue Service · 1111 Constitution Ave. N.W. · Washington, D.C. 20535 Granicus Communications logo