trb-tax-pro 1.1.1

A CA-grade Income Tax calculation engine for India (FY 2025-26) with AIS reconciliation and support for the Income Tax Act, 2025.

TRB Tax Pro

A CA-grade Income Tax calculation engine for India (FY 2020-21 to FY 2026-27) with AIS reconciliation and support for the Income Tax Act, 2025.

Built for precision, notice remediation, ITR-U compliance, and multi-year tax planning.

Features

• Multi-Year Support (NEW): Modular engines for FY 2020-21 through FY 2024-25 added for historical audits, ITR-U filings, and notice resolution.
• Section 87A Marginal Rebate: Precise resolution for the "Cliffs" under the New Regime (specifically mapping the ₹12 Lakh threshold gracefully for FY 2025-26).
• Marginal Relief (Surcharges): Mathematically rigorous computation across multiple thresholds (₹50L, ₹1Cr, ₹2Cr, and ₹5Cr).
• Presumptive Taxation Validation (44AD/44ADA): Dynamic tests against digital transaction limits to unlock enhanced turnover rules (e.g., 5% Cash rules mapping to ₹3Cr limits).
• Automated AIS Reconciliation: Pull SFT entries, Salary, and Capital Gains directly from official JSON specs reducing manual mapping and notice exposure.

Installation

Install the latest version directly from PyPI:

pip install trb-tax-pro --upgrade

Programmatic Usage

Access specific year engines via the MultiYearDispatcher:

from trb_tax_pro.engine.dispatcher import MultiYearDispatcher

# Get the engine for a specific Financial Year
engine = MultiYearDispatcher.resolve("fy2025_26")

# Calculate tax
result = engine.calculate_tax({
    "gross_income": 1280000,
    "regime": "new_regime"
})

print(f"Tax Payable: ₹{result['total_tax']}")

Dashboard Interface

Launch the professional CA wrapper interface featuring unified Tax Computation and AIS Data Bridging:

streamlit run ui.py

Support the Project

If this engine simplifies your compliance workflows or saves your practice from potential 143(1) mismatch notices, please consider supporting the project: ☕ Buy Me a Coffee