Get in touch
Email is the fastest way to reach us, and the easiest place to attach the thing you're asking about — a CP2100 notice, a vendor file, a result you want explained. Everything lands with a person.
Prefer to talk? 1-866-360-9805 — Monday to Friday, 9:00 AM – 5:00 PM Central.
Three inboxes, so your message lands with the right team
Pick the one that fits and you'll skip an internal hand-off. If it's urgent — a CP2100 or 972CG with a deadline attached — say so in the subject line and it moves up the queue.
Sales
Pricing, volumes, integrations, and managed-service engagements. If you're evaluating whether this fits your workflow, start here.
sales@tincomply.com
or call 1-866-360-9805
Customer support
Already using TIN Comply and something isn't behaving? Result codes, file uploads, API questions, and account issues all go here.
support@tincomply.com
or call 1-866-360-9805
Feedback & suggestions
Something missing, something awkward, something you wish it did. A good deal of what's on the platform started as one of these.
Where to find us
- Email any time. Messages sent during business hours are usually answered the same day, and anything sent overnight or at the weekend is answered the next business day.
- 1-866-360-9805 reaches both teams — choose sales or support from the menu when you call.
- Phone hours are Monday – Friday, 9:00 AM – 5:00 PM Central, excluding US federal holidays.
Mailing address
TIN Comply
3800 N Lamar Blvd Ste 200
Austin, TX 78756
United States
For correspondence, notices, and anything you'd rather send on paper. For anything time- sensitive, email or call instead — post is slower than our response times.
Four things you can do right now
Plenty of what reaches our inbox has a same-minute answer. If any of these fit, they'll beat an email round trip.
Help Center
Result codes, file formats, account settings, and the answers to most of what gets emailed to support.
Free tools
CP2100 triage, 972CG penalty response, TIN format and bulk file validators. No account needed.
API reference
Endpoints, request shapes, and full JSON responses — worth a skim before an integration call.
Just try it
Most teams are running live validations within minutes of signing up. No credit card required.
Working to a deadline? CP2100 and 972CG response windows are short. Email sales@tincomply.com with the notice date in the subject and we'll prioritise it, or look at managed services if you'd rather hand the whole thing over.
Rather see it than read about it?
A 30-minute live walkthrough of the real product, on our sample data — including straight answers about what we don't do.
No discovery call first, and no nurture sequence afterwards.