Add tax report generation for merchant compliance

[Smartdevs17]

Description

Implement tax reporting features that automatically generate tax documents (1099-K, VAT reports, transaction summaries) based on merchant transaction history.

Acceptance Criteria

• Tax year summary with gross/net transaction volume
• 1099-K form generation for US merchants
• VAT report generation with configurable rates
• Multi-jurisdiction tax handling with nexus detection
• Tax document archival with 7-year retention
• CSV/PDF export with regulatory formatting

Technical Scope

• frontend/app/dashboard/tax-reports/page.tsx
• backend/src/services/analytics.ts
• backend/src/routes/analytics.ts
• Edge: filing deadline alerts, partial year calculations, currency conversion for reports

[Calebux]

@Calebux has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Please Assign

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Calebux to this issue.

[ogazboiz]

@ogazboiz has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hi

I would love to work on this issue and contribute to the project.

I’ve reviewed the details and feel confident that I can investigate and implement a solid solution for this.

If this issue is currently unassigned and open for external contributors, could you please assign it to me? I will get started on a fix right away and submit a Pull Request as soon as it's ready.

Please let me know if there are any specific guidelines or approaches you'd like me to follow for this particular task.

Thanks,

ℹ️ Repo Maintainers: To accept this application, review their application or assign @ogazboiz to this issue.

[drips-wave]

Congratulations, @ogazboiz! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @ogazboiz: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

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[drips-wave]

This issue has been completed by @ogazboiz as part of the Stellar Wave Program's 5th Wave 🥳

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