"I'm a resident the day I land": the RNOR transition window returning NRIs keep missing

Most returning NRIs believe they become fully taxable in India the day they land — so their Dubai salary, overseas investments and foreign rental are suddenly within India's net. That belief is wrong, and it costs real money. The Income Tax Act 2025 (Section 6) keeps the three-tier residency system, and for two to three tax years after you return you are usually RNOR — Resident but Not Ordinarily Resident — taxed only on Indian income while foreign income without an Indian business or professional nexus stays exempt. This is the single most valuable planning window a returning NRI has, and the one most often wasted by landing on the wrong date, mis-declaring status on the return, or deferring a large foreign income event into the first fully-taxable year.