Better BULK TIN Matching: No Limits. No Reformatting. No Duplicate Hassles.
Validate Your Entire Vendor Population in One Pass
Q4 pre-filing cleanup. Post-ERP migration validation. CP2100 correction campaigns. M&A due diligence on an acquired vendor master. All of these require running large vendor populations through IRS TIN matching — and all of them expose the same frustrations with the IRS's native bulk tool: strict formatting requirements, a 100,000 record limit, 24-hour turnaround, pass/fail results with no correction guidance, and a 96-hour lockout if duplicates slip through. TIN Comply handles all of it — any file format, no record limits, results within the hour, specific result codes per record, and automatic deduplication that prevents lockouts before they happen.
What the IRS Bulk Tool Actually Gives You — and What It Doesn't
The IRS TIN Matching Program allows payers to submit bulk TIN/Name combinations for validation before filing information returns. It accepts .txt files, up to 100,000 records per file, in a specific IRS-mandated format. Results come back within 24 hours as pass/fail codes. That's it.
No correction guidance. No explanation of why a record failed. No sanctions screening. No handling of duplicates — submit three or more identical records in a single file and your account gets locked out for 96 hours. No support for extra columns your team uses for internal tracking. No results for files over 100,000 records without splitting manually.
For organizations validating tens of thousands of vendors before January filing, those limitations aren't minor inconveniences — they're operational problems that slow down the compliance calendar at the worst possible time.
What TIN Comply Does Differently
Upload Any File Format
Excel, CSV, or .TXT — upload your vendor export directly without reformatting to IRS specifications. TIN Comply handles the formatting automatically, including extra columns your team uses for internal tracking. Your file works as-is.
No Record Limits
The IRS caps bulk files at 100,000 records. TIN Comply supports unlimited rows per file — validate your entire vendor population in a single upload regardless of size. No manual file splitting, no staggered submission batches.
Results Within the Hour
The IRS bulk program returns results within 24 hours. TIN Comply typically returns bulk matching results within the hour — which matters when you're running a Q4 correction campaign with a January deadline and need time to resolve exceptions before filing.
Automatic Duplicate Protection
Submit three or more duplicate TIN/Name combinations in a single IRS bulk file and your account is locked out for 96 hours. TIN Comply automatically detects duplicates before submission — isolating each unique combination into its own IRS-compliant file, processing individually, then reassembling results. A 96-hour lockout during Q4 filing season doesn't happen.
Specific Result Codes, Not Pass/Fail
The IRS returns numeric result codes without explanation. TIN Comply translates every result into a specific, actionable category — name mismatch, wrong TIN type, invalid TIN, confirmed SSN match, confirmed EIN match. Your team and automated outreach know exactly what correction to request per record.
Sanctions Screening Included
Every record in a bulk file is automatically screened against 250+ sanctions lists — OFAC, FinCEN, BIS, EU, UN — alongside IRS TIN matching. One upload, complete result: TIN validation status and sanctions clearance per record.
How Bulk Processing Works
Upload Your File
Drag and drop your vendor export — Excel, CSV, or .TXT. Extra columns retained. No reformatting required.
Select Validations
Choose IRS TIN matching, sanctions screening, EIN lookup, or any combination. Runs across every record in the file.
Review Results
Categorized exception report — mismatches by type, invalid TINs, missing W-9s, sanctions flags. Sortable, filterable, exportable to Excel or CSV.
Launch Outreach
Automated W-9 correction requests go out to every exception vendor — targeted by result code, documented cadence, revalidation on every corrected submission.
When to Run Bulk Validation
Q4 Pre-Filing — Every October
The single most important bulk validation run of the year. Export your full 1099-reportable vendor population in early October, run bulk TIN matching, review the exception report, and launch correction outreach with enough time to resolve before the January deadline. October leaves 90 days. December leaves three weeks.
Post-ERP Migration
ERP migrations reliably corrupt vendor master data — legal names truncated at 40 characters, TINs reformatted, entity suffixes dropped, records merged incorrectly. Run bulk validation on the full vendor population after migration and before the first filing on the new system. Find the migration-induced errors while there's still time to fix them.
M&A Due Diligence
An acquired company's vendor master is an unknown. Run bulk validation on the target's vendor population as part of due diligence — understand the TIN mismatch exposure, identify vendors that were never screened against OFAC, and establish a baseline compliance record before the first consolidated filing.
CP2100 Correction Campaigns
When a CP2100 arrives with a large mismatch population, bulk processing handles the correction campaign at scale — export the mismatch list, run bulk validation to confirm current status, launch automated outreach for all exceptions simultaneously, and track corrections through to revalidation.
Vendor Master Cleanup
Vendor masters that have never been systematically validated accumulate data quality problems over years — stale EINs, truncated names, duplicate records, missing TINs. A single bulk validation pass produces a categorized exception report that turns years of accumulated errors into a structured remediation list.
Periodic OFAC Re-Screening
Sanctions lists change continuously. Run bulk re-screening of the full active vendor population on a quarterly or semi-annual schedule — ensuring that post-onboarding designations are caught before the next payment run rather than after an OFAC inquiry.
TIN Comply Bulk vs. IRS Bulk Tool
| Capability | IRS Bulk Tool | TIN Comply Bulk |
|---|---|---|
| File formats accepted | .TXT only, IRS format required | Excel, CSV, .TXT — no reformatting |
| Record limit | 100,000 per file | Unlimited |
| Turnaround time | Up to 24 hours | Typically within the hour |
| Result detail | Numeric pass/fail codes | Specific result categories with plain-language explanation |
| Duplicate handling | 3+ duplicates trigger 96-hr lockout | Automatic deduplication — lockout prevented |
| Sanctions screening | None | 250+ lists screened on every record |
| Extra columns | Not supported | Retained in output |
| Correction outreach | None | Automated W-9 requests triggered on exceptions |
| Audit trail | No record retained | Full per-vendor log with timestamps |
| API support | None | Full bulk API available |
Get Started Today
Validate Your Entire Vendor Population — Without the Limitations
Any file format. No record limits. Results within the hour. Specific result codes per record. Automatic duplicate protection. Sanctions screening included. Automated correction outreach on every exception. Run your Q4 bulk validation, post-migration cleanup, or vendor master remediation without the formatting headaches, record limits, and 24-hour waits of the IRS native tool.
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