# ARJE Digital / ARJE Bookkeeping & Tax Services > Forensic Amazon FBA and eBay bookkeeping, cleanup, and tax services for > e-commerce sellers, plus digital templates and SaaS tools for bookkeepers > and tax preparers. Founder: Arnold Dizon, PTIN-certified tax professional > and QuickBooks Online ProAdvisor. Henderson, Nevada. ## Services - [Get Help With Your Books](https://arjebookkeeping.com/get-help/): Cleanup quotes, monthly bookkeeping, and diagnosis-first engagements for Amazon and eBay sellers. Fixed-fee foundation diagnosis before any cleanup is quoted. - [Foundation Diagnosis](https://arjebookkeeping.com/foundation-diagnosis/): $495 fixed-fee, read-only forensic review of an Amazon or e-commerce seller's QuickBooks file — finds forced reconciliations, settlement mis-attribution, and corrections that balance but don't tie, then delivers a written verdict and a fixed cleanup quote. Credited 100% toward the cleanup if engaged within 30 days. ## Guides - [Amazon FBA Bookkeeping: The Complete Guide](https://arjebookkeeping.com/fba-bookkeeping-system/): How FBA sellers should handle settlements, COGS, fees, reimbursements, and taxes. - [How Much Should I Pay in Quarterly Estimated Taxes?](https://arjebookkeeping.com/quarterly-estimated-taxes/): Quarterly estimated tax calculation, safe harbor rules, and 2026 deadlines for self-employed filers and Amazon sellers. ## Products - [Tax Prep Client Onboarding System](https://arjebookkeeping.gumroad.com/l/taxprepsetup): $97. JotForm templates, 4 Zapier automations, email sequences, client tracking, and WISP template — onboard new tax clients in under 10 minutes. - [Amazon Seller Bookkeeping Templates](https://arjebookkeeping.gumroad.com/l/eercnn): $47. P&L tracker, inventory management, fee calculator, and quarterly tax estimator built specifically for FBA sellers. - [BOS Starter Kit](https://arjebookkeeping.gumroad.com): $49. Business Operating System foundation — folder structure, BOS tracker spreadsheet, month-end close checklist, and quick start guide. - [Tax Prep Client Tracking Spreadsheet](https://arjebookkeeping.gumroad.com/l/pwvlyz): $27. Google Sheets client tracker with status, deadlines, document checklist, and fee tracking. - [Tax Prep Email Templates](https://arjebookkeeping.gumroad.com/l/fvmjdu): $19. Professional email templates for every stage of the tax prep client relationship. - [FBA Reimbursement Calculator](https://arjebookkeeping.com/products/fba-reimbursement-calculator/): $19.99. Calculate exactly what Amazon owes you in lost, damaged, or destroyed FBA inventory — claim-ready summaries for Seller Central. - [Bookkeeper Capacity Calculator](https://arjebookkeeping.com/products/bookkeeper-capacity-calculator/): $19.99. Find your real client ceiling in 60 seconds — models hours per client, hours per week, and target revenue. - [Quarterly Estimated Tax Calculator](https://arjebookkeeping.com/products/quarterly-estimated-tax-calculator/): $24.99. Estimate Q1–Q4 federal estimated taxes, including self-employment tax and safe harbor comparison. - [Monthly Close Checklist Calculator](https://arjebookkeeping.com/products/monthly-close-checklist-calculator/): $19.99. Time-budgets each step of the monthly close cycle for staff capacity planning. - [Solo CPA Client Capacity Calculator](https://arjebookkeeping.com/products/solo-cpa-client-capacity-calculator/): $29. Models compliance vs advisory revenue mix, tax-season hour spikes, and attest practice constraints. ## Blog - [ARJE Blog](https://blog.arjebookkeeping.com/): Practical tax and bookkeeping operations for e-commerce sellers and accounting professionals. - [Amazon Settlement Reconciliation: Why Balanced Books Can Still Be Wrong](https://blog.arjebookkeeping.com/amazon-settlement-reconciliation-balanced-but-wrong/): Why a reconciliation that balances can still be wrong, and why quarantining a discrepancy beats forcing it to zero.