This discussion clarifies whether individuals with nil tax liability can file an Updated Return (ITR-U). It explains that while a nil tax return isn't directly permitted, filing is possible for incomes up to ₹4.99 lakhs by utilising the rebate under Section 87A. The conversation also addresses potential late fees under Section 234F for incomes exceeding ₹2.5 lakhs but below ₹5 lakhs.