ACA Reporting › ACA Software for Multi-EIN Filing
At a Glance
Which ACA Software Handles Multiple EINs?
Organizations with multiple EINs, subsidiaries, or related entities need ACA software that understands controlled group rules. The best multi-EIN ACA software provides a unified view across all entities, properly handles transmittal forms (1094-C) for each EIN, and validates data across related companies.
BoomTax is built for multi-entity organizations. Whether you have two EINs or two hundred, our platform manages ACA compliance across your entire corporate structure with proper controlled group handling.
Multi-EIN Challenges BoomTax Solves
- Unified Dashboard: View filing status, errors, and submissions across all EINs from one interface.
- Controlled Group Rules: Properly aggregate employee counts for ALE determination under IRC 414(b), (c), (m), and (o).
- Per-EIN Transmittals: Generate separate 1094-C transmittal forms for each EIN as required by IRS.
- Cross-Entity Validation: Catch duplicate SSNs and data inconsistencies across related entities.
- Bulk Multi-EIN Import: Upload data for all EINs in one file—we separate and validate each entity.
Understanding Controlled Groups
Under ACA rules, related employers must be treated as a single employer for ALE determination:
- Parent-Subsidiary Groups: 80%+ common ownership aggregates employee counts.
- Brother-Sister Groups: Five or fewer common owners with 80%+ identical ownership.
- Combined Groups: Organizations meeting both parent-subsidiary and brother-sister tests.
- Affiliated Service Groups: Service organizations with common ownership or management.
BoomTax helps you properly handle controlled group reporting—each EIN files separately to the IRS, but employee counts are aggregated across the group for ALE determination purposes.
Forms for Multi-EIN Filing
Per-EIN Filings
- Form 1095-C - Filed per employee, per EIN
- Form 1094-C - Separate transmittal per EIN
Controlled Group Reporting
- Aggregated employee counts on 1094-C
- Authoritative transmittal designation
- Member EIN listing
Enterprise Features for Multi-EIN
- Entity Hierarchy: Organize EINs by parent company, division, or business unit.
- Role-Based Access: Control who can view and edit data for each EIN.
- Consolidated Reporting: View aggregate filing statistics across all entities.
- API Integration: Automate data transfer from multiple HR systems.
All Features Included
Purchasing any BoomTax package will give you everything you need to complete your filing.
This includes:
- Federal E-File
- State E-File (ACA and 1099 CF/SF)
- Recipient Copy Download as PDF
- Official IRS Copy Download as PDF
- Unlimited Corrections
Bulk Import
Import many companies in one spreadsheet to simplify data input.
Data Validation
We validate your data against hundreds of IRS rules.
Hands Off E-File
No IRS registration or testing required.
Free Corrections
Make as many changes as needed for free.
How Multi-EIN Organizations File with BoomTax
Import Your Data
You can import your data as Excel, XML, or use files from popular payroll providers like QuickBooks, UKG, ADP, and many more.
Step-By-Step Wizard
We walk you through the process with no complicated jargon. You can also live chat with a real person as you work on your filing for hands-on help.
E-File & Mail Employee Copies
Once your data is loaded, you can e-file and distribute employee copies in minutes.
Frequently Asked Questions
Dedicated to simplifying complex IRS regulations for employers, with expertise in ACA, 1099, and W-2 compliance.
BoomTax and its affiliates do not provide tax, legal, or accounting advice. This material has been prepared for informational purposes only, and is not intended to provide, and should not be relied on for, tax, legal, or accounting advice. You should consult your own tax, legal, and accounting advisors prior to engaging in any transaction.