TAN
Definition
The Tax Deduction and Collection Account Number, a ten-character identifier that any person deducting or collecting tax at source in India must obtain and quote on TDS returns, challans and certificates. Separate from PAN, and required before any TDS can validly be deposited.
Related Terms in India GST
GST (Goods and Services Tax)
India's unified indirect tax replacing multiple central and state taxes. After the GST 2.0 rationalisation (effective 22 September 2025) it applies at 0%, 5%, 18%, and 40% rate slabs, plus special rates for precious stones and metals (0.25% / 1.5% / 3%). Includes CGST (central), SGST (state), and IGST (inter-state). HelloBooks fully supports GST compliance.
CGST & SGST
Central GST (CGST) and State GST (SGST) are levied equally on intra-state supplies. For example, 18% GST on a local sale = 9% CGST + 9% SGST. Both go to different government levels.
IGST (Integrated GST)
GST levied on inter-state supplies and imports. IGST equals the full GST rate (e.g., 18% IGST vs 9% CGST + 9% SGST). The central government distributes the state portion to the destination state.
GSTIN
A 15-digit GST Identification Number assigned to every registered taxpayer in India. Format: 2 digits state code + 10 digits PAN + 1 digit entity number + 1 blank + 1 check digit. Must appear on all GST invoices.
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