How to File ITR-1 Online is a common question among salaried individuals and other eligible taxpayers. ITR-1, also called Sahaj, is designed for eligible resident individuals with specified sources of income. The online process is simple when you have the right documents and follow each step carefully. In this guide, you will learn how to file ITR-1 online for AY 2026-27, who can use ITR-1, which documents you need, how to select your tax regime, and how to complete e-verification. What Is ITR-1 (Sahaj)? ITR-1 Sahaj is an Income Tax Return form for eligible individual taxpayers. It generally applies to resident individuals with income from permitted sources such as salary or pension, house property and other specified sources. For AY 2026-27, eligible taxpayers can also report income from up to two house properties, subject to the applicable conditions. Before filing, check whether you meet all ITR-1 eligibility requirements. Who Can File ITR-1 Online? You can generally file ITR-1 online if you are an eligible resident individual and your total income does not exceed ₹50 lakh. Your income should fall within the categories permitted under ITR-1. These may include: However, income level alone does not decide your eligibility. Your income sources and other financial circumstances also matter. Who Cannot Use ITR-1? ITR-1 does not apply to every taxpayer. You may need another ITR form if you have certain types of income or financial interests. For example, ITR-1 generally cannot be used in situations involving: If you are unsure, check your eligibility before starting the ITR-1 filing process. Documents Required for ITR-1 Online Filing Keep your important tax documents ready before you start ITR-1 online filing. Document Main Purpose PAN Taxpayer identification Aadhaar Identity and e-verification Form 16 Salary and TDS information Form 26AS Tax credit verification AIS Reported financial information Bank details Refund and payment information Home loan details Eligible interest information Also, compare your Form 16, Form 26AS and AIS before submitting the return. This can help you identify missing or incorrect information. How to File ITR-1 Online in 2026 The ITR-1 online filing process involves a few simple steps. Follow them in order to reduce the chances of mistakes. Step 1: Log In to the Income Tax Portal First, visit the official Income Tax e-Filing portal and log in using your credentials. Then select: e-File → Income Tax Returns → File Income Tax Return Choose the relevant assessment year and select Online as the filing mode. Step 2: Select ITR-1 for AY 2026-27 Next, select AY 2026-27 and choose ITR-1 (Sahaj) if you meet the eligibility conditions. The portal may pre-fill several details. Check your name, PAN, Adhara, address, contact information and bank details carefully. Step 3: Review Your per-filled Information The portal may show information based on available tax records. However, do not assume that every detail is correct. Compare the information with your Form 16, bank records, AIS and Form 26AS. If you find an error, correct the relevant information before continuing. Step 4: Enter Your Income Details Now enter or confirm your income details. Depending on your situation, these may include: Make sure that all taxable income is reported correctly. Step 5: Choose Your Tax Regime For AY 2026-27, the New Tax Regime is the default tax regime. If you want to use the Old Tax Regime, select the applicable option while filing. Compare both regimes based on your income and eligible deductions before making your choice. Therefore, do not select a tax regime without checking which option works better for your circumstances. Step 6: Add Eligible Deductions If applicable, enter your eligible deductions according to the tax regime you select. For example, certain deductions may be available under the Old Tax Regime. The availability of deductions differs under the New Tax Regime. Always check the current rules before claiming a deduction. Step 7: Check Tax Calculation After entering your details, review the tax calculation carefully. Check: If additional tax is payable, complete the required payment before submitting the return. Step 8: Submit and E-Verify ITR-1 Finally, submit your return after checking all details. The last important step is e-verification. Use an available electronic verification method through the Income Tax e-Filing system. Do not consider your filing complete until the return has been successfully verified. Common I TR-1 Filing Mistakes to Avoid While filing ITR-1 online, taxpayers often make simple mistakes. Avoid these common errors: A final review can help you catch these mistakes before submission. Quick Checklist for ITR-1 Online Filing Before submitting your return, check the following: Need Help With ITR Filing? Tax filing can become confusing when you have multiple income sources, deductions or questions about the correct ITR form. Nimble Trio can help you understand the applicable filing requirements and get professional assistance with your tax-related needs. If you are unsure about your eligibility or the information you need to report, getting professional guidance before submission can help you avoid unnecessary errors. Conclusion How to File ITR-1 Online becomes easier when you follow the correct process and verify your information at every stage. Start by checking your eligibility and preparing documents such as Form 16, AIS and Form 26AS. Next, log in to the Income Tax e-Filing portal, select ITR-1 for AY 2026-27, enter your income details, choose your tax regime and review the tax calculation. Finally, submit and e-verify your ITR-1 to complete the filing process. A careful review before submission can help you avoid common mistakes and make your online ITR filing smoother. FAQ Can I file ITR-1 online myself? Yes. If you meet the eligibility conditions, you can file ITR-1 online through the Income Tax e-Filing portal. What is the main focus of ITR-1? ITR-1 is mainly intended for eligible individual taxpayers with specified income sources such as salary or pension, house property and other permitted sources. Is the New Tax Regime the default for AY 2026-27? Yes. The New Tax Regime is the default regime for AY 2026-27. Taxpayers should review both regimes before making their selection.