Malaysia TIN & BRN Format Checker

MyInvois e-invoicing pairs two Malaysian identifiers on every document: the Tax Identification Number (TIN) issued by LHDN/HASiL, and the Business Registration Number (BRN) issued by SSM. Both follow precise formats, but the free tools online are live-lookup services that send your data to a server and only tell you valid or invalid. This checker instead validates the structure and decodes the meaning entirely in your browser — the TIN prefix and its entity class, whether a non-individual TIN carries its mandatory trailing zero, and whether a BRN is the new SSM 12-digit number or a legacy format.

Paste a TIN to see its prefix decoded (IG for individuals; C, CS, D, F, FA, PT, TA, TC, TN, TR, TP, J, or LE for non-individuals), confirm it fits the 14-character maximum, and get the corrected value if a non-individual TIN is missing its trailing zero. Paste a BRN to decode the 12-digit structure into registration year, entity-type code (01 local company through 06 professional-practice LLP), and sequence — or to detect a legacy ROC number that needs updating. Batch mode takes a whole column of TINs and BRNs and returns an exportable table.

From 1 August 2026, MyInvois validates the TIN together with the BRN, so legacy short-format registration numbers that no longer match HASiL records will block e-invoice issuance. This tool flags those cases early. Note that a structural pass is not existence verification — only the LHDN Validate-Taxpayer-TIN API can confirm a TIN actually exists and matches its BRN. Everything here runs locally; no identifier ever leaves your device.