Privacy Policy
Last updated: July 2026
1. Data we process
NNS Tax Pro processes your NNS transaction export (uploaded by you) and the calculated Section 104 results. All data is keyed to your Internet Identity principal and stored in the backend canister's per-user state.
2. Per-user isolation
Your data is isolated by principal. No other user — and no party without your principal — can read your transactions, summary, or calculation results. Authentication is handled by Internet Identity; we never see or store a password.
3. Payment data
Report unlock payments are processed by Stripe. We do not receive or store your full card details. Stripe returns a session identifier and a completion status; we store only the unlock state keyed to your principal.
4. Data retention
Your transaction and calculation data persists in the canister for as long as your principal holds it. We do not currently offer an in-app deletion control; contact support to request removal of your data.
5. Cookies and local storage
Internet Identity uses browser storage (IndexedDB) to restore your session. We do not use third-party tracking cookies. React Query caches backend responses in memory only; signing out clears this cache.
6. Analytics
We do not run third-party analytics on your usage of the Service during this release.
7. Your rights
You may request access to or deletion of the data associated with your principal by contacting support@nnstaxpro.com. Because data is keyed to your Internet Identity, you control access by controlling your identity.
8. Changes to this policy
We may update this Privacy Policy from time to time. Continued use after changes constitutes acceptance of the revised policy.
9. Contact
For privacy questions, contact support@nnstaxpro.com.
Questions? Email support@nnstaxpro.com