Official Sources

Short answer

We rank sources: government and regulator publications first, then official bank and payment-provider notices, then reputable financial publications. A rule is never presented as current on the strength of a blog post.

Last updated: 16 September 2026Last verified: 16 September 2026

Priority 1 — Government and regulators

✓ Official source

NPCI — UPI circulars

National Payments Corporation of India

UPI operating rules, MDR structure, transaction categories and limits.

https://www.npci.org.in/circulars/upi

✓ Official source

Income Tax Department

Government of India

Income tax law, rates, TDS/TCS provisions and filing guidance.

https://www.incometax.gov.in/

✓ Official source

Income Tax — e-Pay Tax

Income Tax Department

Paying income tax, advance tax and self-assessment tax electronically, including UPI.

https://www.incometax.gov.in/iec/foportal/help/all-topics/e-filing-services/tax-payments

✓ Official source

Press Information Bureau

Government of India

Official government announcements and clarifications.

https://www.pib.gov.in/

✓ Official source

Reserve Bank of India

RBI

Payment system regulation, digital payment directions and circulars.

https://www.rbi.org.in/

✓ Official source

GST Portal

Goods and Services Tax Network

GST registration, rates, returns and notifications.

https://www.gst.gov.in/

Priority 2 — Official bank and payment-provider notices

Acquiring banks, payment aggregators and UPI apps publish their own schedules of charges, merchant classifications and limits. These are authoritative for your specific account or merchant relationship.

Priority 3 — Reputable financial publications

Used only for context and for spotting that something has changed — never as the primary authority for a current rule.

When we cannot verify

If an official source for a specific point is not available, we say so on the page: “Current official rule could not be independently verified.” We do not guess rates, thresholds or effective dates.

This page is educational information, not professional tax, legal or financial advice. Rules can change — verify against the latest official notification or consult a qualified professional before acting.