How do Indian seafarers claim NRI status for income tax exemption? What is the minimum number of days required?

To qualify for Non-Resident Indian (NRI) status for the purpose of income tax exemption, an Indian seafarer must be outside the territorial limits of India for a minimum of 184 days (or 185 days in a leap year) during a financial year, which runs from April 1st to March 31st. This requirement is governed by the Income Tax Act, 1961, and was specifically clarified for the maritime sector through the introduction of Rule 126 in 2015. Under Rule 126 of the Income Tax Rules, the calculation of the "eligible period" for a seafarer serving on a foreign-bound ship is determined based on the entries made in the Continuous Discharge Certificate (CDC). The eligible period begins on the date of joining the ship and ends on the date of signing off. Crucially, for the purpose of residency determination, the entire duration from the date of joining to the date of signing off (as recorded in the CDC) is excluded from the count of days spent in India, even if the vessel remains within Indian territorial waters for a portion of that time, provided the vessel is "foreign-bound." The Directorate General of Shipping (DGS) guidelines ensure that the CDC serves as the primary legal document for verifying sea service. This aligns with the Maritime Labour Convention (MLC 2006), which mandates that every seafarer must have a valid Seafarers' Employment Agreement (SEA) and that their service periods are accurately recorded. While the STCW Convention (Standards of Training, Certification, and Watchkeeping) governs the competency and certification of the seafarer, the CDC remains the authoritative record for tax residency. To successfully claim the exemption, the following conditions must be met: 1. The seafarer must serve on a "foreign-going vessel" as defined under the Merchant Shipping Act. This includes vessels operating under international regulatory frameworks such as SOLAS (International Convention for the Safety of Life at Sea) and MARPOL (International Convention for the Prevention of Pollution from Ships). 2. The salary for the period of service must be credited directly into a Non-Resident External (NRE) bank account maintained in India. 3. The individual must maintain precise documentation, including the CDC, passport immigration stamps, and the Seafarers' Employment Agreement (SEA), to prove they were outside India for the requisite 184 days. If a seafarer completes 184 days or more outside India, their status transitions from "Resident" to "Non-Resident." Consequently, the income earned during the voyage is not taxable in India. If the stay outside India is less than 184 days, the seafarer is classified as a Resident, and their global income becomes subject to Indian Income Tax according to the applicable tax slabs. It is imperative for officers and crew to monitor their "signing on" and "signing off" dates meticulously to ensure compliance with these statutory residency requirements.