When dealing with thousands—or even millions—of reportable records, manually validating TINs becomes time-consuming, error-prone, and inefficient. The IRS does provide a traditional bulk matching program, but its limitations, delays, and strict formatting requirements often make it frustrating for teams trying to stay compliant.
That’s where TIN Comply BULK Matching stands apart. We help you process high volumes of records quickly, cleanly, and accurately—with real-time feedback and full audit tracking.
The IRS TIN Matching Program allows payers to verify Taxpayer Identification Numbers (TINs) and names in bulk before filing information returns such as Forms 1099.
The IRS accepts .txt files with up to 100,000 TIN/Name combinations, using a specific format. Results are typically returned within 24 hours, and validations are limited to pass/fail codes—offering no correction suggestions or data discovery insights.
TIN Comply simplifies and enhances the entire IRS bulk matching process:
Easy Drag-and-Drop Uploads
Upload Excel, CSV, or .TXT files without needing to reformat your data manually.
Intelligent Result Codes
We translate confusing IRS result codes into clear, human-readable feedback with visual indicators.
Auto-Formatting to IRS Standards
We automatically reformat your data to match IRS bulk file requirements—no manual edits needed.
Quicker Results
No need to wait 24 hours—our system typically returns bulk matching results within the hour.
Intelligent IRS-Safe Deduplication
We don’t just flag duplicates—we automatically isolate every unique TIN/name combination into its own IRS-compliant file. If you submit 25 identical “John Smith” records, we create 25 separate files, process them individually, and then seamlessly reassemble the results. This protects your account from being suspended by the IRS for submitting three or more duplicates in a single file.
Unlimited File Size & Flexibility
Unlike the IRS’s 100,000 record limit, we support unlimited rows per file and extra data columns for internal use.
Batch and API Support
Upload bulk files manually or programmatically using our robust Bulk API.
Upload Your File:
You can upload any spreadsheet or text file—even if it contains extra columns or metadata fields.
Select Validations:
Choose which validations you’d like to run in bulk:
Get Fast Results:
Receive structured output with full result history, status codes, explanations, and links to any failed records.
Export & Review:
Download results in Excel, CSV, or view them in your dashboard with sorting, filtering, and highlighting tools.
Invalid TIN/Name combinations can result in IRS Notice CP2100/972CG and costly penalties. By validating early and in bulk, you reduce risk and improve the accuracy of your IRS filings.
TIN Comply helps you:
TIN Comply has supported clients across industries—from law firms and payroll companies to Fortune 500s—with scalable, reliable TIN validation solutions.
If you’re managing vendor compliance, contractor payments, or settlement reporting at scale, bulk matching is a must-have tool.
Join thousands of businesses using TIN Comply to simplify TIN matching and elevate IRS compliance. Sign up for a free trial or contact us to schedule a demo.