Source Verification Log
May 2026 verification log for official Indian finance, tax, GST, labour, RBI, and Google Search sources used by RupeeCalc.
Verification status
This log records the source families used during the May 2026 accuracy review. It does not guarantee that every future law, notification, or product-rate change has been automatically captured.
| Source family | Official link | Review rule |
|---|---|---|
| Income tax slabs / regime choice Income Tax Department — Salaried Individuals for AY 2026-27 | Open official source | FY 2025-26 / AY 2026-27 tax-slab assumptions, default new regime note, senior citizen slab cross-check, 87A/cess notes. Use for salaried/non-business cases. Business/profession users must separately verify Form 10-IEA and regime-switch rules. |
| Income tax business/profession rules Income Tax Department — Individual having income from business/profession for AY 2026-27 | Open official source | Business/profession regime-switch caution and surcharge/marginal relief cross-checks. Do not apply salaried-only switching simplifications to business/profession cases. |
| Income-tax Act 2025 transition watch Income Tax Department — Objective and scope of the Income-tax Act, 2025 | Open official source | 2026+ update watch and source verification when FY 2026-27 content is added. Existing calculator pages labelled FY 2025-26 / AY 2026-27 should not silently become FY 2026-27 pages without fresh verification. |
| GST rates and classification CBIC — GST goods and services rates | Open official source | GST add/remove formula source context and GST-rate/classification verification links. GST calculator does arithmetic only. HSN/SAC classification and rate must be verified from CBIC/GST Council/current notifications. |
| GST Council updates GST Council — GST rates | Open official source | Cross-checking rate categories and changes after GST Council meetings. Use alongside CBIC notifications before publishing rate-specific claims. |
| Loan rate resets / borrower rights RBI — FAQs on reset of floating interest rate on EMI-based personal loans | Open official source | EMI prepayment/reset caveats and consumer-rights notes. Calculator does not fetch live lender rates. Users must verify exact rate/spread/charges with lender. |
| Interest rate methodology RBI — Master Circular / interest rates on advances | Open official source | Lending-rate source context; not used as a live rate feed. Do not claim EMI as an RBI-branded standard; EMI uses a standard reducing-balance amortisation formula. |
| Gratuity formula Ministry of Labour & Employment — Payment of Gratuity Act, 1972 | Open official source | Five-year rule, 15 days' wages, monthly wage divided by 26 and multiplied by 15, and eligibility caveats. Some 2026 labour-code transition details require fresh verification before giving legal advice. |
| 2026 labour-code transition Ministry of Labour & Employment — FAQs on Labour Codes, 2026 | Open official source | 2026 gratuity/labour-code transition caution and current maximum gratuity reference. Use as a caution/update source; do not overstate applicability to every employment case. |
| EPF reference EPFO — Official updates and circulars | Open official source | EPF/PF source links in glossary and future salary calculators. Do not publish PF rate pages unless the exact circular/year is verified. |
| Google Search / AI features Google Search Central — Optimizing for generative AI features | Open official source | AI-search-safe content rules: no GEO hacks, no scaled pages, focus on unique helpful content and crawlable technical structure. RupeeCalc keeps llms.txt as transparency only; it is not treated as a Google ranking/AI-overview requirement. |
| Google Search / AI Overview eligibility Google Search Central — AI features and your website | Open official source | Eligibility/crawlability notes for AI Overviews and AI Mode. No extra technical requirements beyond indexed/snippet-eligible Google Search pages. |
| People-first content Google Search Central — Creating helpful, reliable, people-first content | Open official source | Editorial strategy and anti-thin-content review. Traffic strategy must be utility-led, not AI-spam-led. |
| Search Essentials Google Search Central — Search Essentials | Open official source | Technical crawlability, people-first language, link crawlability, and baseline Search requirements. Used for architecture and internal-linking quality checks. |
Pages requiring re-check after external changes
- Budget / Finance Act / CBDT update: income-tax calculator, tax slabs, salary pages, new-vs-old regime, deductions, Form 16, ITR pages.
- GST Council / CBIC rate update: GST calculator and GST guide blocks.
- RBI / lender rate reset update: EMI, home-loan, and prepayment guide pages.
- Labour-code / gratuity guidance update: gratuity calculator and salary/employment glossary.
- Google Search update: methodology, editorial policy, sitemap, internal-linking and programmatic-page rules.
May 2026 AI-search and Google-safety approach
RupeeCalc is structured for users first: source-linked facts, visible formulas, assumptions, crawlable links, and no crawler-only content. We do not use fake reviews, inflated authority, mass AI pages, or “GEO hacks.”
AI searchGoogle states normal SEO best practices still apply to AI Overviews/AI Mode.
No spamNo scaled pages without unique calculations or user value.
Transparencyllms.txt is provided as a transparency aid, not as a ranking or AI inclusion trick.