Form 1099Filing Season 2026

IRS IRIS Questions Answered for 2026

Get IRS-backed answers to common IRIS questions about TCC applications, A2A testing, schemas, corrections, acknowledgments and portal filing.

By Ken Ham | Published September 10, 2026 | Filed under Form 1099

Tax professionals and software developers working with the IRS Information Returns Intake System (IRIS) often run into the same practical questions: Which credentials are required? When does testing open? How do corrections work? Where can the latest schemas be found?

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Top Stories

2026 Car Loan Interest Reporting: $600 Rule for Lenders

Form 1099

2026 Car Loan Interest Reporting: $600 Rule for Lenders

New IRS rules require lenders that receive $600 or more of interest on a qualifying car loan to file an information return and furnish a borrower statement.

By Ken HamSep 8, 2026

How to File Form W-2: Step-by-Step Guide for Employers

Form W-2

How to File Form W-2: Step-by-Step Guide for Employers

Ken Ham · Sep 3

How to File Form 1099-A: Step-by-Step Guide

Form 1099

How to File Form 1099-A: Step-by-Step Guide

Ken Ham · Sep 1

The Real Cost of Waiting to Migrate from FIRE to IRIS

Form 1099

The Real Cost of Waiting to Migrate from FIRE to IRIS

Ken Ham · Sep 1

Today's Brief

1099-B Deadline Guide for 2026: Dates, Penalties, Filing Tips

Form 1099

1099-B Deadline Guide for 2026: Dates, Penalties, Filing Tips

Learn 2026 Form 1099-B deadlines, penalties, and filing tips for brokers and barter exchanges to stay compliant and avoid costly IRS mistakes.

By Ken HamAug 27, 2026

How to File Form 1099-B in 2026: Brokers & Barter Exchanges

Form 1099

How to File Form 1099-B in 2026: Brokers & Barter Exchanges

Learn how brokers and barter exchanges file Form 1099-B in 2026, including reporting rules, basis details, deadlines, and common filing errors.

By Ken HamAug 25, 2026

ACA Compliance for Healthcare Employers: COBRA, ICHRA, Rehires

ACA Reporting

ACA Compliance for Healthcare Employers: COBRA, ICHRA, Rehires

Learn how healthcare employers handle ACA compliance for COBRA, ICHRA, rehires, variable-hour staff, and Form 1095-C reporting.

By Ken HamAug 20, 2026

Featured Reads

Banks and Financial Institutions: Your IRIS Migration Timeline

Form 1099

Banks and Financial Institutions: Your IRIS Migration Timeline

Ken Ham · Aug 18, 2026

Form 941 vs 943: Which Payroll Tax Return to File in 2025

Form W-2

Form 941 vs 943: Which Payroll Tax Return to File in 2025

Ken Ham · Aug 18, 2026

IRS Draft Form 941-X for 2026: What to Know Before Filing

Form W-2

IRS Draft Form 941-X for 2026: What to Know Before Filing

Ken Ham · Aug 13, 2026

Form 940 Deadline 2026: Key Dates and Filing Tips

Form W-2

Form 940 Deadline 2026: Key Dates and Filing Tips

Ken Ham · Aug 11, 2026

2026 1099-K Backup Withholding Rules for TPSOs

Form 1099

2026 1099-K Backup Withholding Rules for TPSOs

Ken Ham · Aug 9, 2026

Form 1099 for 2026: Ultimate Guide for First-Time Filers

Form 1099

Form 1099 for 2026: Ultimate Guide for First-Time Filers

Ken Ham · Aug 6, 2026

IRIS Registration: Why 45 Days Isn’t as Long as You Think

Form 1099

IRIS Registration: Why 45 Days Isn’t as Long as You Think

Ken Ham · Aug 4, 2026

Why Filing 1099 and W-2 Forms Early Is Better

ACA Reporting

Why Filing 1099 and W-2 Forms Early Is Better

Ken Ham · Aug 4, 2026

Form 1099

Information Returns

01. IRS IRIS Questions Answered for 2026

Ken Ham · Sep 10, 2026

02. 2026 Car Loan Interest Reporting: $600 Rule for Lenders

Ken Ham · Sep 8, 2026

03. How to File Form 1099-A: Step-by-Step Guide

Ken Ham · Sep 1, 2026

04. The Real Cost of Waiting to Migrate from FIRE to IRIS

Ken Ham · Sep 1, 2026

Form W-2 & ACA

Wages & Coverage

01. How to File Form W-2: Step-by-Step Guide for Employers

Ken Ham · Sep 3, 2026

02. ACA Compliance for Healthcare Employers: COBRA, ICHRA, Rehires

Ken Ham · Aug 20, 2026

03. Form 941 vs 943: Which Payroll Tax Return to File in 2025

Ken Ham · Aug 18, 2026

04. IRS Draft Form 941-X for 2026: What to Know Before Filing

Ken Ham · Aug 13, 2026

Pay Data & Payroll

State & Federal

01. Where to Mail Form 945 – IRS Mailing Address

Michaela Porterfield · Oct 22, 2025

02. Where to Mail Form 944 – IRS Mailing Address

Michaela Porterfield · Oct 20, 2025

03. Form 1042-S Withholding: Rules and Rates for U.S. Payers

Ryan Casarez · Oct 16, 2025

04. What is Form 945? Complete Guide & Requirements

Michaela Porterfield · Oct 13, 2025