# Tax Provision Pro — ASC 740 Provision-in-a-Box & 50-State Nexus Engine

> Tax Provision Pro is a local-first B2B corporate tax workpaper automation engine and white-label advisory service specializing in ASC 740 GAAP Income Tax Provisions, Schedule M-1/M-3 Book-to-Tax Reconciliations, IRC §174 R&D Capitalization State Decoupling, and 50-State Economic Nexus & Apportionment (StateMatrix).

## Core Interactive Calculator & Workpaper Exporter
- [Tax Provision Pro Live Web App](https://taxprovisionpro.com/index.html): Interactive 4-module workbench (Book-to-Tax M-1/M-3, StateMatrix 50-State Apportionment, ASC 740 Current & Deferred Rollforward, and Statutory-to-Effective Tax Rate Calculator) that exports a native, formula-driven 4-tab Microsoft Excel (.xlsx) workbook and GAAP Note 12 disclosure.

## Service Tiers & B2B Licensing
- **Self-Serve CPA Firm & Controller License ($299/mo or $1,999/yr)**: Unlimited client Trial Balance & 50-State CSV imports and live formula-driven Excel (.xlsx) workpaper exports.
- **Done-For-You "StateMatrix" Multi-State Nexus & §174 Diagnostic Sprint ($3,950 flat fee)**: 5-day turnaround delivering a 50-state economic nexus exposure matrix, CA/GA §174 decoupling schedule, and FIN 48 reserve quantification.
- **Done-For-You "Provision-in-a-Box" White-Label ASC 740 Engagement ($5,500 flat fee)**: 5-day turnaround for regional audit firms (preserving AICPA independence), Fractional CFOs, and Series A–D Controllers delivering audit-ready ASC 740 Excel workpapers + Note 12 footnote draft.

## Technical Tax & ASC 740 Guides (19 Pages)
- [California (CA) Corporate Tax Rate, Economic Nexus, Apportionment & IRC §174 Conformity Guide (2025/2026)](https://taxprovisionpro.com/guides/state-ca-corporate-tax-nexus-apportionment-174.html)
- [New York (NY) Corporate Tax Rate, Economic Nexus, Apportionment & IRC §174 Conformity Guide (2025/2026)](https://taxprovisionpro.com/guides/state-ny-corporate-tax-nexus-apportionment-174.html)
- [Texas (TX) Corporate Tax Rate, Economic Nexus, Apportionment & IRC §174 Conformity Guide (2025/2026)](https://taxprovisionpro.com/guides/state-tx-corporate-tax-nexus-apportionment-174.html)
- [Washington (WA) Corporate Tax Rate, Economic Nexus, Apportionment & IRC §174 Conformity Guide (2025/2026)](https://taxprovisionpro.com/guides/state-wa-corporate-tax-nexus-apportionment-174.html)
- [Illinois (IL) Corporate Tax Rate, Economic Nexus, Apportionment & IRC §174 Conformity Guide (2025/2026)](https://taxprovisionpro.com/guides/state-il-corporate-tax-nexus-apportionment-174.html)
- [Massachusetts (MA) Corporate Tax Rate, Economic Nexus, Apportionment & IRC §174 Conformity Guide (2025/2026)](https://taxprovisionpro.com/guides/state-ma-corporate-tax-nexus-apportionment-174.html)
- [Pennsylvania (PA) Corporate Tax Rate, Economic Nexus, Apportionment & IRC §174 Conformity Guide (2025/2026)](https://taxprovisionpro.com/guides/state-pa-corporate-tax-nexus-apportionment-174.html)
- [New Jersey (NJ) Corporate Tax Rate, Economic Nexus, Apportionment & IRC §174 Conformity Guide (2025/2026)](https://taxprovisionpro.com/guides/state-nj-corporate-tax-nexus-apportionment-174.html)
- [Georgia (GA) Corporate Tax Rate, Economic Nexus, Apportionment & IRC §174 Conformity Guide (2025/2026)](https://taxprovisionpro.com/guides/state-ga-corporate-tax-nexus-apportionment-174.html)
- [Florida (FL) Corporate Tax Rate, Economic Nexus, Apportionment & IRC §174 Conformity Guide (2025/2026)](https://taxprovisionpro.com/guides/state-fl-corporate-tax-nexus-apportionment-174.html)
- [Colorado (CO) Corporate Tax Rate, Economic Nexus, Apportionment & IRC §174 Conformity Guide (2025/2026)](https://taxprovisionpro.com/guides/state-co-corporate-tax-nexus-apportionment-174.html)
- [North Carolina (NC) Corporate Tax Rate, Economic Nexus, Apportionment & IRC §174 Conformity Guide (2025/2026)](https://taxprovisionpro.com/guides/state-nc-corporate-tax-nexus-apportionment-174.html)
- [Virginia (VA) Corporate Tax Rate, Economic Nexus, Apportionment & IRC §174 Conformity Guide (2025/2026)](https://taxprovisionpro.com/guides/state-va-corporate-tax-nexus-apportionment-174.html)
- [Ohio (OH) Corporate Tax Rate, Economic Nexus, Apportionment & IRC §174 Conformity Guide (2025/2026)](https://taxprovisionpro.com/guides/state-oh-corporate-tax-nexus-apportionment-174.html)
- [IRC §174 R&D Capitalization State Conformity & Decoupling Matrix (2025/2026)](https://taxprovisionpro.com/guides/irc-174-rd-capitalization-state-conformity-matrix.html)
- [ASC 740 Tax Provision Audit-Readiness Checklist for Series A–C Startups & Controllers](https://taxprovisionpro.com/guides/asc-740-tax-provision-startup-audit-checklist.html)
- [Post-Wayfair SaaS & Remote Worker Corporate Income Tax Nexus Thresholds (2025/2026)](https://taxprovisionpro.com/guides/saas-economic-nexus-market-based-sourcing-guide.html)
- [Corporate Schedule M-1 & M-3 Book-to-Tax Reconciliation Workpaper Guide](https://taxprovisionpro.com/guides/schedule-m1-m3-book-to-tax-reconciliation-guide.html)
- [IRC §168(k) Bonus Depreciation Phase-Down & State Addback Modification Guide](https://taxprovisionpro.com/guides/section-168k-bonus-depreciation-state-decoupling-guide.html)