{"id":1636,"date":"2026-03-11T11:52:53","date_gmt":"2026-03-11T06:22:53","guid":{"rendered":"https:\/\/cajdshah.com\/blog\/?p=1636"},"modified":"2026-04-09T13:42:49","modified_gmt":"2026-04-09T08:12:49","slug":"income-tax-filing-mistakes-to-avoid-in-2026","status":"publish","type":"post","link":"https:\/\/cajdshah.com\/blog\/income-tax-filing-mistakes-to-avoid-in-2026\/","title":{"rendered":"What Are the Most Common Income Tax Filing Mistakes in 2026?"},"content":{"rendered":"<section class=\"wpb-content-wrapper\"><p>[vc_row css=&#8221;.vc_custom_1765522538490{margin-top: 20px !important;margin-bottom: 20px !important;}&#8221;][vc_column][vc_column_text]Filing your income tax return may seem like a routine task, but even small mistakes can lead to notices from the <strong>Income Tax Department of India<\/strong>, delayed refunds, or penalties. Every year, many taxpayers unknowingly make errors while submitting their returns through the <strong>Income Tax e-Filing Portal<\/strong>, as tax regulations continue to evolve in 2026, understanding the most common filing mistakes can help you avoid unnecessary stress and ensure a smooth tax filing experience.<\/p>\n<p>We at <a href=\"https:\/\/cajdshah.com\/\" target=\"_blank\" rel=\"noopener\"><strong>JD Shah Associates<\/strong><\/a>, often see taxpayers repeating similar errors. In this article, we explain the most common income tax filing mistakes and how you can avoid them.[\/vc_column_text][vc_separator][\/vc_column][\/vc_row][vc_row css=&#8221;.vc_custom_1765522550472{margin-top: 20px !important;margin-bottom: 20px !important;}&#8221;][vc_column][vc_column_text]<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/cajdshah.com\/blog\/income-tax-filing-mistakes-to-avoid-in-2026\/#1_Choosing_the_Wrong_ITR_Form\" >1. Choosing the Wrong ITR Form<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/cajdshah.com\/blog\/income-tax-filing-mistakes-to-avoid-in-2026\/#2_Not_Reporting_All_Sources_of_Income\" >2. Not Reporting All Sources of Income<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/cajdshah.com\/blog\/income-tax-filing-mistakes-to-avoid-in-2026\/#3_Claiming_Incorrect_Deductions\" >3. Claiming Incorrect Deductions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/cajdshah.com\/blog\/income-tax-filing-mistakes-to-avoid-in-2026\/#4_Not_Reconciling_TDS_Details\" >4. Not Reconciling TDS Details<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/cajdshah.com\/blog\/income-tax-filing-mistakes-to-avoid-in-2026\/#5_Ignoring_the_New_vs_Old_Tax_Regime\" >5. Ignoring the New vs Old Tax Regime<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/cajdshah.com\/blog\/income-tax-filing-mistakes-to-avoid-in-2026\/#6_Filing_Returns_at_the_Last_Minute\" >6. Filing Returns at the Last Minute<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/cajdshah.com\/blog\/income-tax-filing-mistakes-to-avoid-in-2026\/#7_Forgetting_to_Verify_the_Return\" >7. Forgetting to Verify the Return<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/cajdshah.com\/blog\/income-tax-filing-mistakes-to-avoid-in-2026\/#8_Providing_Incorrect_Bank_Details\" >8. Providing Incorrect Bank Details<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/cajdshah.com\/blog\/income-tax-filing-mistakes-to-avoid-in-2026\/#How_Professional_Tax_Guidance_Can_Help\" >How Professional Tax Guidance Can Help<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/cajdshah.com\/blog\/income-tax-filing-mistakes-to-avoid-in-2026\/#Final_Thought\" >Final Thought<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"1_Choosing_the_Wrong_ITR_Form\"><\/span>1. Choosing the Wrong ITR Form<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>One of the most common mistakes is selecting the incorrect ITR form. Different forms apply to different types of taxpayers depending on income sources such as salary, business income, or capital gains.<\/p>\n<p>For example:<\/p>\n<ul>\n<li>Salaried individuals usually file <strong>ITR\u20111 (Sahaj)<\/strong>.<\/li>\n<li>Individuals with capital gains or multiple income sources may need <strong>ITR\u20112<\/strong>.<\/li>\n<li>Business owners typically file <strong>ITR\u20113<\/strong>.<\/li>\n<\/ul>\n<p>Selecting the wrong form can make your return defective and may require correction later.<\/p>\n<p><strong>Tip:<\/strong> Always review your income sources before choosing the form.<\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_single_image image=&#8221;1640&#8243; img_size=&#8221;large&#8221; style=&#8221;vc_box_shadow_border&#8221;][vc_separator][\/vc_column][\/vc_row][vc_row css=&#8221;.vc_custom_1765522550472{margin-top: 20px !important;margin-bottom: 20px !important;}&#8221;][vc_column][vc_column_text]<\/p>\n<h2><span class=\"ez-toc-section\" id=\"2_Not_Reporting_All_Sources_of_Income\"><\/span>2. Not Reporting All Sources of Income<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Many taxpayers report only their salary income and forget to include other earnings such as:<\/p>\n<ul>\n<li>Interest from savings accounts or fixed deposits<\/li>\n<li>Rental income<\/li>\n<li>Freelance or side business income<\/li>\n<li>Capital gains from shares or mutual funds<\/li>\n<\/ul>\n<p>These details are often reflected in <strong>Form 26AS<\/strong> or the <strong>Annual Information Statement (AIS)<\/strong>.<\/p>\n<p>If the income reported in your return does not match these records, the tax department may send a notice.<\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_separator][\/vc_column][\/vc_row][vc_row css=&#8221;.vc_custom_1765522550472{margin-top: 20px !important;margin-bottom: 20px !important;}&#8221;][vc_column][vc_column_text]<\/p>\n<h2><span class=\"ez-toc-section\" id=\"3_Claiming_Incorrect_Deductions\"><\/span>3. Claiming Incorrect Deductions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Taxpayers sometimes claim deductions without proper documentation or misunderstand eligibility rules under sections like <strong>Section 80C<\/strong>, <strong>Section 80D<\/strong>, or <strong>Section 80G<\/strong>.<\/p>\n<p>Common mistakes include:<\/p>\n<ul>\n<li>Claiming deductions already considered by the employer<\/li>\n<li>Claiming ineligible expenses<\/li>\n<li>Entering wrong amounts<\/li>\n<\/ul>\n<p>Incorrect deductions may result in additional tax liability or penalties later.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"4_Not_Reconciling_TDS_Details\"><\/span>4. Not Reconciling TDS Details<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Many taxpayers assume that the TDS deducted by their employer is always correct. However, mistakes can happen.<\/p>\n<p>Before filing your return, always cross-check your TDS details with <strong>Form 16<\/strong> and <strong>Form 26AS<\/strong>. If there is any mismatch, you should get it corrected before submitting your return.<\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_single_image image=&#8221;1641&#8243; img_size=&#8221;large&#8221; style=&#8221;vc_box_shadow_border&#8221;][vc_separator][\/vc_column][\/vc_row][vc_row css=&#8221;.vc_custom_1765522550472{margin-top: 20px !important;margin-bottom: 20px !important;}&#8221;][vc_column][vc_column_text]<\/p>\n<h2><span class=\"ez-toc-section\" id=\"5_Ignoring_the_New_vs_Old_Tax_Regime\"><\/span>5. Ignoring the New vs Old Tax Regime<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Taxpayers in India can choose between the <strong>New Tax Regime<\/strong> and the <strong>Old Tax Regime<\/strong>. Many people simply select the default option without comparing which regime is more beneficial for them.<\/p>\n<p>Choosing the wrong regime could mean paying more tax than necessary.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"6_Filing_Returns_at_the_Last_Minute\"><\/span>6. Filing Returns at the Last Minute<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Waiting until the deadline often leads to rushed decisions and mistakes such as:<\/p>\n<ul>\n<li>Missing important income details<\/li>\n<li>Entering incorrect bank information<\/li>\n<li>Forgetting deductions<\/li>\n<li>Not verifying the return<\/li>\n<\/ul>\n<p>Early filing gives you enough time to review your return carefully and fix any issues.<\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_separator][\/vc_column][\/vc_row][vc_row css=&#8221;.vc_custom_1765522550472{margin-top: 20px !important;margin-bottom: 20px !important;}&#8221;][vc_column][vc_column_text]<\/p>\n<h2><span class=\"ez-toc-section\" id=\"7_Forgetting_to_Verify_the_Return\"><\/span>7. Forgetting to Verify the Return<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Filing your return is not the final step. Your return must be verified within the specified time through:<\/p>\n<ul>\n<li>Aadhaar OTP<\/li>\n<li>Net banking<\/li>\n<li>Bank account verification<\/li>\n<\/ul>\n<p>If the return is not verified, it will be treated as <strong>not filed<\/strong>, even if you submitted it online.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"8_Providing_Incorrect_Bank_Details\"><\/span>8. Providing Incorrect Bank Details<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Incorrect bank account numbers or IFSC codes can delay your tax refund. Always double-check your bank details before submitting the return. This is especially important for taxpayers expecting refunds.<\/p>\n<p>[\/vc_column_text][vc_separator][\/vc_column][\/vc_row][vc_row css=&#8221;.vc_custom_1765522550472{margin-top: 20px !important;margin-bottom: 20px !important;}&#8221;][vc_column][vc_column_text]<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_Professional_Tax_Guidance_Can_Help\"><\/span>How Professional Tax Guidance Can Help<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Income tax rules can be complex, and even small mistakes can lead to unnecessary complications. Seeking professional help ensures that your tax return is accurate, compliant, and optimized.<\/p>\n<p>At <strong>JD Shah Associates<\/strong>, we assist individuals, professionals, and businesses with:<\/p>\n<ul>\n<li>Accurate income tax return filing<\/li>\n<li>Tax planning and compliance<\/li>\n<li>Tax audit and advisory services<\/li>\n<li>Resolving income tax notices<\/li>\n<\/ul>\n<p>Our goal is to make the tax filing process simple and stress-free for our clients.<\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_separator][\/vc_column][\/vc_row][vc_row css=&#8221;.vc_custom_1765522550472{margin-top: 20px !important;margin-bottom: 20px !important;}&#8221;][vc_column width=&#8221;1\/2&#8243;][vc_column_text]<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Final_Thought\"><\/span>Final Thought<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Income tax filing mistakes are common, but they are also avoidable. By reviewing your financial details carefully and seeking professional advice when needed, you can ensure a smooth filing process and avoid unwanted tax notices.<\/p>\n<p>If you need assistance with <strong>income tax filing, <a href=\"https:\/\/cajdshah.com\/tax-audit-services.html\" target=\"_blank\" rel=\"noopener\">tax audit<\/a>, or auditing and taxation services<\/strong>, the experts at <a href=\"https:\/\/cajdshah.com\/contact-best-ca-in-mumbai.html\" target=\"_blank\" rel=\"noopener\"><strong>JD Shah Associates<\/strong><\/a> are here to help.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;1642&#8243; img_size=&#8221;large&#8221; style=&#8221;vc_box_shadow_border&#8221;][\/vc_column][\/vc_row][vc_row][vc_column][\/vc_column][\/vc_row]<\/p>\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_1636\" class=\"pvc_stats all  \" data-element-id=\"1636\" style=\"\"><i class=\"pvc-stats-icon medium\" aria-hidden=\"true\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"far\" data-icon=\"chart-bar\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\" class=\"svg-inline--fa fa-chart-bar fa-w-16 fa-2x\"><path fill=\"currentColor\" d=\"M396.8 352h22.4c6.4 0 12.8-6.4 12.8-12.8V108.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v230.4c0 6.4 6.4 12.8 12.8 12.8zm-192 0h22.4c6.4 0 12.8-6.4 12.8-12.8V140.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v198.4c0 6.4 6.4 12.8 12.8 12.8zm96 0h22.4c6.4 0 12.8-6.4 12.8-12.8V204.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v134.4c0 6.4 6.4 12.8 12.8 12.8zM496 400H48V80c0-8.84-7.16-16-16-16H16C7.16 64 0 71.16 0 80v336c0 17.67 14.33 32 32 32h464c8.84 0 16-7.16 16-16v-16c0-8.84-7.16-16-16-16zm-387.2-48h22.4c6.4 0 12.8-6.4 12.8-12.8v-70.4c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v70.4c0 6.4 6.4 12.8 12.8 12.8z\" class=\"\"><\/path><\/svg><\/i> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"16\" alt=\"Loading\" src=\"https:\/\/cajdshah.com\/blog\/wp-content\/plugins\/page-views-count\/ajax-loader-2x.gif\" =0 title=\"\"><\/p>\n<div class=\"pvc_clear\"><\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>[vc_row css=&#8221;.vc_custom_1765522538490{margin-top: 20px !important;margin-bottom: 20px !important;}&#8221;][vc_column][vc_column_text]Filing your income tax return may seem like a routine task, but even small mistakes can lead to notices from the Income Tax Department of India, delayed refunds, or penalties. Every year, many taxpayers unknowingly [&hellip;]<\/p>\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_1636\" class=\"pvc_stats all  \" data-element-id=\"1636\" style=\"\"><i class=\"pvc-stats-icon medium\" aria-hidden=\"true\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"far\" data-icon=\"chart-bar\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\" class=\"svg-inline--fa fa-chart-bar fa-w-16 fa-2x\"><path fill=\"currentColor\" d=\"M396.8 352h22.4c6.4 0 12.8-6.4 12.8-12.8V108.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v230.4c0 6.4 6.4 12.8 12.8 12.8zm-192 0h22.4c6.4 0 12.8-6.4 12.8-12.8V140.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v198.4c0 6.4 6.4 12.8 12.8 12.8zm96 0h22.4c6.4 0 12.8-6.4 12.8-12.8V204.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v134.4c0 6.4 6.4 12.8 12.8 12.8zM496 400H48V80c0-8.84-7.16-16-16-16H16C7.16 64 0 71.16 0 80v336c0 17.67 14.33 32 32 32h464c8.84 0 16-7.16 16-16v-16c0-8.84-7.16-16-16-16zm-387.2-48h22.4c6.4 0 12.8-6.4 12.8-12.8v-70.4c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v70.4c0 6.4 6.4 12.8 12.8 12.8z\" class=\"\"><\/path><\/svg><\/i> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"16\" alt=\"Loading\" src=\"https:\/\/cajdshah.com\/blog\/wp-content\/plugins\/page-views-count\/ajax-loader-2x.gif\" border=0 \/><\/p>\n<div class=\"pvc_clear\"><\/div>\n","protected":false},"author":1,"featured_media":1643,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,2],"tags":[23],"class_list":["post-1636","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-business","category-income-tax","tag-income-tax"],"_links":{"self":[{"href":"https:\/\/cajdshah.com\/blog\/wp-json\/wp\/v2\/posts\/1636","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cajdshah.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cajdshah.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cajdshah.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cajdshah.com\/blog\/wp-json\/wp\/v2\/comments?post=1636"}],"version-history":[{"count":6,"href":"https:\/\/cajdshah.com\/blog\/wp-json\/wp\/v2\/posts\/1636\/revisions"}],"predecessor-version":[{"id":1646,"href":"https:\/\/cajdshah.com\/blog\/wp-json\/wp\/v2\/posts\/1636\/revisions\/1646"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cajdshah.com\/blog\/wp-json\/wp\/v2\/media\/1643"}],"wp:attachment":[{"href":"https:\/\/cajdshah.com\/blog\/wp-json\/wp\/v2\/media?parent=1636"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cajdshah.com\/blog\/wp-json\/wp\/v2\/categories?post=1636"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cajdshah.com\/blog\/wp-json\/wp\/v2\/tags?post=1636"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}