Start here

Start with the full guide list or the step-by-step guides.

Notice, records, and dates

Best fit when the file starts with a notice, transcript, or date problem.

Penalty and claim decisions

Best fit when the charge is clear but the route or label is not.

Business and closed-file cases

Best fit when the file is entity-heavy, payroll-heavy, or authority-heavy.

After filing

Best fit when Form 843 was already mailed and the next event is unclear.

Contact

Penalty Claim Check is operated by Toothy Grin Marketing LLC. For site questions or support requests, use the contact email below.

Operator

Toothy Grin Marketing LLC

300 N Center, Ste 6, Casper, WY 82601

Do not send Social Security numbers, EINs, bank details, or full tax-document images through basic email.