Free and premium tools for self-custody Bitcoiners. Review outputs carefully and do not paste sensitive identifiers.
Enter your salary + expenses. See what you ACTUALLY paid the state last year, including hidden taxes. Then see what that would've been in Bitcoin over 10 years. Sobering.
Calculate My Tax Bill →Paste your BTC buys/sells. Get FIFO/LIFO/HIFO cost basis side-by-side, IRS Form 8949 export, and federal tax estimate. No account needed.
Open Calculator →Wrong brand? Click for our sister site's subscription auditor. Find hidden recurring charges in 30 seconds.
Audit My Subs →Paste your transaction history. Get a CPA-ready review of possible TLH candidates from the last 3 years, current lots to review, and questions to bring before making any tax move.
Find My Missed Savings →Got an IRS notice about Bitcoin? Paste the notice body and get a structured response draft, citation checklist, and supporting-document list for CPA or tax-attorney review.
Generate My Response →Complete inheritance system: hardware wallet inventory, multisig configs, heir contacts, recovery steps, letter to family. Casa charges $250/mo. We charge $49 once.
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