Validate thousands of vendor TINs against IRS records, reduce 1099 filing errors, and look up EINs when vendor data is incomplete. Built for accountants managing multiple clients, from 1099 season to year-round compliance.
Batch-validate hundreds of vendor records in one upload
Validate vendor TINs against IRS records in real time
Look up EINs by business name when vendor data is incomplete
Year-round access for ongoing client compliance workflows
Per incorrect 1099
The IRS may assess penalties of up to $310 per incorrect 1099, with annual caps reaching into the millions for larger organizations. Even small filing error rates can create significant exposure across a multi-client portfolio.
4 hrs
Average time without EINsearch
Manually researching vendor W-9s, resolving TIN mismatches, and validating records can take several hours when managing a high volume of vendors or multiple client accounts. EINsearch is designed for high-volume workflows, allowing large batches of vendor TINs to be validated against IRS records in seconds to help reduce manual compliance workload and filing delays.
January 31
1099 filing deadline
January 31 is the standard IRS deadline for furnishing many 1099 forms to recipients and filing certain 1099 forms with the IRS. Validating TIN information before filing can help reduce correction filings, CP2100 notices, and penalty exposure.
How It Works
From incomplete vendor data to filing-ready records
Find the EINs you're missing, validate every name and TIN against IRS records, and get back documented results. One record or thousands.
1
Find what's missing
Search 20M+ verified records to find an EIN by business name when a W-9 is incomplete or a vendor hasn't come back to you. Confirm you have the right entity before it reaches a 1099.
EIN lookup by name
2
Validate against IRS records
EIN validation and TIN matching confirm the name and number pair as the IRS holds it, catching mismatches before filing. Run a single check at onboarding or upload a full vendor file ahead of a deadline.
Single or batch
3
Get a documented result
Every result is timestamped and retained for 90 days, and OFAC watchlist screening is included on every plan. That's your documentation for CP2100 responses, penalty abatement, and client record keeping.
Timestamped results
EINsearch vs. Manual Process
Why accountants switch from manual TIN verification
Traditional manual verification is slow, one-at-a-time, and leaves no consistent documentation trail. Here is how EINsearch compares.
Feature
EINsearch
Manual Verification Without EINsearch
Self-Attested Data (W-9)
Real-time IRS TIN validation
✓
✗
✗
OFAC sanctions screening
✓
✗
✗
Batch and API processing
✓
✗
✗
Timestamped verification records
✓
✗
✗
Coverage of non-public entities
✓
✗
✗
Time per 50-entity validation
Under 2 min
30–60 min
1–3 days
Cost per month (50 entities)
From $25
Staff time cost
Low upfront, high compliance risk
ROI Calculator
Estimate your 1099 filing risk and savings
See your potential IRS penalty exposure compared to the cost of automated validation. Adjust the inputs to reflect your filing volume, typical error rate, and the staff hours required to respond to a B-Notice.
Calculations use current IRS penalty rates from Publication 1586. Actual exposure varies based on filing volume, error rate, and the specifics of your firm.
Estimate your exposure
200
5%
3 hrs
$75
Estimated CP2100/B-Notices per year
10
Annual staff time recovered
30 hrs
Staff time cost recovered
$2,250
EINsearch annual cost
From $300/yr
Potential IRS penalty exposure
If corrected within 30 days · $60/notice
$600
If corrected by August 1 · $130/notice
$1,300
If uncorrected or late · $340/notice
$3,400
Estimated annual savings
Staff time recovered minus EINsearch cost
$1,950
Show your work
200 filings x 5% mismatch rate = 10 B-Notices
10 notices x 3 hrs x $75/hr = $2,250 in recoverable staff time
Penalty tiers per IRS Publication 1586:
· If corrected within 30 days: $60 x notices
· If corrected by August 1: $130 x notices
· If uncorrected or late: $340 x notices
Actual exposure depends on response speed and your TIN solicitation process. Most penalties can be reduced or waived with proper documentation.
Built for Accountants
Everything you need for accurate, audit-ready 1099 filing
EINsearch gives accounting teams the tools to cut manual work, reduce filing errors, and stay in IRS good standing year-round.
EIN Lookup by Name
Find and verify EINs using just the company name. Speeds up vendor onboarding and new client setup, and prevents missing or incorrect tax data from becoming a filing problem later.
Vendor Onboarding
Timestamped Audit Trail
Timestamped verification records and match outcomes are retained for 90 days to support compliance documentation, IRS reviews, client recordkeeping, and penalty abatement requests.
Audit Defense
Real-Time IRS TIN Validation
The compliance foundation: every TIN is validated against IRS records in real time, catching mismatches before filing. Fewer B-Notices, cleaner client reporting, and stronger filing accuracy.
Compliance Core
Year-Round Access
EINsearch isn't just for filing season. Maintain vendor data, onboard new clients, and run compliance checks year-round, not just in the January rush.
Always On
API Integration
Available on annual plans, the EINsearch API embeds EIN and TIN verification directly into your existing accounting platform. Validate at client onboarding, AP processing, and ongoing vendor management without leaving your workflow.
Automation Ready
Batch TIN Matching
Validate hundreds of vendor TINs in a single upload before filing deadlines hit. Use batch processing across your full client roster, all in one workflow.
1099 Season Essential
Customer Feedback
FAQs
Questions from accountants
Have a question not answered here? Our team is available by phone, email, or live chat.
EINsearch helps accountants and finance teams reduce the risk of B-Notices by identifying name and TIN mismatches during vendor onboarding rather than at year-end filing. Real-time IRS TIN validation allows issues to be detected early, giving organizations time to obtain corrected W-9 information before 1099s are submitted. The result is a more efficient filing process, fewer reporting discrepancies, and reduced administrative burden associated with backup withholding and compliance follow-up.
Batch TIN Matching allows accountants and finance teams to upload vendor files and receive validation results across the entire batch, with most projects completed within 72 hours or less. Annual subscriptions also include API access, enabling firms to integrate vendor verification directly into their accounting software, ERP, or onboarding workflows instead of validating vendors individually.
Start validating TINs during vendor onboarding rather than waiting until filing season. Delaying validation until January can lead to late corrections, increased B-Notice risk, and time-consuming W-9 follow-up efforts. Year-round validation helps organizations identify issues earlier, distribute compliance work more efficiently, and provide vendors with ample time to submit corrected information before 1099 filing deadlines.
No. Accounts and compliance teams use EINsearch.com year-round for vendor onboarding, client due diligence, and business verification workflows. New vendors and clients can be reviewed quickly, with tax information validated and business identity confirmed to support KYC (Know Your Customer), KYB (Know Your Business), and broader compliance and risk management requirements. Organizations also use EINsearch to strengthen internal controls, support AML and vendor verification procedures, and maintain more accurate records throughout the year. Annual subscriptions are designed to support ongoing compliance and verification operations year-round, not solely during 1099 filing season.
EINsearch offers subscription plans designed for sole proprietors, accounting firms, financial professionals, and larger organizations with ongoing verification and compliance needs. Monthly plans currently start at $25 for 25 searches and scale up to enterprise-level usage tiers, while annual plans begin at $375 and include API access for workflow automation and system integrations. Every subscription includes OFAC watchlist, EIN search, and TIN Matching screening as part of EINsearch’s broader suite of compliance and business verification tools. Full pricing details, plan features, and current promotional offers are available on the pricing page.
Get Started Today
Protect your clients. Protect your firm.
Validate vendor TINs against IRS records, look up EINs, screen against OFAC sanctions lists, and reduce CP2100 and B-Notice exposure before filing season begins. Start with a free EINsearch account and see how much compliance risk, manual work, and filing exposure you can eliminate.
