7 ITR mistakes costing Indian taxpayers ₹10,000+ in refunds before July 31, 2026. HRA, regime, AIS — fix them before you file.
Tax Filing Season · AY 2026-27
The July 31 deadline is days away. These are the seven filing mistakes that quietly cost salaried Indians the most money this year — with the exact math for each, and a free risk checker to test your own return.
⏳ Timing note: If you're reading this in the last week of July, the deadline hasn't moved — July 31, 2026 stands for ITR-1 and ITR-2 filers as of today, with no extension announced. Skip straight to whichever mistake applies to you; the interactive risk checker in Section 13 takes two minutes and flags exactly where your refund is at risk.
⚡ Key Takeaways — Quick Read
- No ITR deadline extension has been announced as of July 23, 2026. Unlike last year, this year's forms and pre-filled data were ready early — tax professionals say that removes the usual justification for a September extension.
- The new tax regime is default. Since Budget 2025 rewrote the slabs, the old regime often no longer wins even with HRA, 80C and a home loan stacked together — the real mistake is not checking both, in either direction.
- HRA can still be claimed at filing time even if your Form 16 never carried it — but you need rent receipts and payment proof ready, since it can trigger an AIS/Form 16 mismatch flag.
- An undocumented ₹1,50,000 Section 80C claim can cost a 30%-slab taxpayer ₹46,800 in disallowed deduction plus cess if the proof isn't on hand when asked.
- Refunds are fully automated — which means a single wrong IFSC, an un-validated bank account, or a name mismatch with PAN can freeze a refund for weeks with no manual override.
- Forgetting to e-verify within 30 days makes your return legally "not filed" — refund included — even if you submitted it hours before the deadline.
1. Why This Deadline Season Feels Different
Every July, the same question trends: will the government extend the deadline? Last year it happened — the due date for AY 2025-26 moved from July 31 to September 15, and then, after a portal crash, to September 16. This year, tax professionals are telling clients not to bank on a repeat, and the reasoning is specific rather than optimistic. The AY 2025-26 extension existed because the notified ITR forms and e-filing utilities were released late, leaving too little runway to file. For AY 2026-27, the forms, utilities and pre-filled Form 16/AIS/26AS data were available well ahead of the season — the structural reason for last year's extension simply isn't present this time.
That doesn't mean the system is under no strain. The Finance Ministry told Parliament on July 21, 2026 that the e-filing portal has remained broadly stable even as daily traffic has more than doubled week-on-week — 12.22 lakh returns were filed in a single day on July 14, with close to 99 lakh daily logins, and the government has expanded portal capacity and coordinated with UIDAI, RBI, banks, NSDL and CDSL to keep it that way through the deadline. Some users are still reporting login lag during peak hours, which is a reason to file before the final 48 hours regardless of whether an extension eventually materialises — not a reason to assume the deadline will move.
Staggered ITR deadlines for Assessment Year 2026-27. The ITR-3/ITR-4 non-audit split from ITR-1/ITR-2 is a permanent structural change under the Finance Act 2026, not a one-off relief.
2. The Call That Went Very Quiet
Three years ago I filed my own return in what I can only describe as a mood of complete, unearned confidence. HRA, claimed. 80C, maxed. I hit submit and told my CA, over the phone, that this was "probably my cleanest return yet." There was a pause. Not a busy-person pause — a specific, considering pause, the kind that precedes bad news.
"Your rent agreement," she said. "The one from three landlords ago. Do you still have it?" I did not. I had also, it turned out, been paying rent into an account that was not the landlord's — a "just send it to my brother's account, it's fine" arrangement from 2022 that I had never once thought to reconsider. My HRA exemption survived, eventually, on the strength of bank statements and a very patient landlord who remembered me. But I spent a genuinely uncomfortable fortnight learning that "I claimed it" and "I can prove it" are not the same sentence — and that the gap between them is exactly where refunds go to die.
3. Mistake #1 — Assuming You Already Know Which Regime Wins
The new tax regime under Section 115BAC is the default for AY 2026-27. If you do nothing, your salary is taxed under it — HRA, Section 80C, home loan interest and most Chapter VI-A deductions are simply not applied. That much is well known. What's less understood is that Budget 2025 raised the new-regime rebate under Section 87A so far — up to ₹60,000, wiping out tax entirely for taxable income up to ₹12 lakh (about ₹12.75 lakh gross for salaried filers, once the ₹75,000 standard deduction is applied) — that the old "switch to old regime for the HRA + 80C stack" advice no longer holds for most salaried taxpayers the way it used to. The actual mistake this year usually isn't picking new by default. It's assuming last year's regime choice, or your CA's advice from two Budgets ago, still applies without re-running the numbers.
How the opt-out actually works this year
If you have no business or professional income, you do not file a separate form to choose your regime — you simply select "opting out of new regime" directly inside ITR-1 or ITR-2, and you can change your choice every year. Form 10-IEA is required only for taxpayers with business or professional income filing ITR-3 or ITR-4, per the Income Tax Department's own clarification, and for them the old-regime choice can be exercised only twice in a lifetime — so run the comparison before ticking anything.
Worked example — a ₹18 LPA salaried profile, old vs new
Profile: ₹18,00,000 gross salary, HRA exemption ₹1,32,000 (worked in Mistake #2 below), Section 80C ₹1,50,000, home loan interest ₹2,00,000 (Section 24(b) self-occupied cap).
New regime: Taxable income = ₹18,00,000 − ₹75,000 standard deduction = ₹17,25,000. Slab tax (0–4L nil, 4–8L@5%, 8–12L@10%, 12–16L@15%, 16–17.25L@20%) = ₹1,45,000 + 4% cess = ₹1,50,800.
Old regime: Taxable income = ₹18,00,000 − ₹5,32,000 (std. deduction + HRA + 80C + home loan interest) = ₹12,68,000. Slab tax (0–2.5L nil, 2.5–5L@5%, 5–10L@20%, 10–12.68L@30%) = ₹1,92,900 + 4% cess = ₹2,00,616.
Result: the new regime wins by ₹49,816 for this profile — despite the full HRA + 80C + home-loan stack. Your own numbers will differ with income and deductions, but the direction of the mistake — assuming the old regime automatically wins because you have deductions — is the same one costing people money in 2026.
4. Mistake #2 — Not Claiming HRA, or Letting It Vanish Silently
HRA exemption under Section 10(13A) is available only under the old regime, and CAs commonly cite figures in the range of ₹15,000–₹20,000 in lost exemption value as a realistic real-world impact when salaried employees simply skip claiming it — often because their Form 16 never carried it in the first place, usually because they moved into a rented flat mid-year or started paying rent to parents without telling payroll. The good news: you can still claim HRA directly in your ITR even when Form 16 shows nothing, as long as you can document it. The catch: a Form 16-vs-ITR mismatch on HRA is exactly the kind of gap that shows up in AIS reconciliation and invites a clarification notice if your paperwork isn't ready.
The exemption formula, explained simply
HRA exemption is the least of three numbers: (a) actual HRA received from your employer, (b) rent paid minus 10% of basic salary, and (c) 50% of basic salary in a metro city or 40% in a non-metro city.
Worked example: basic salary ₹40,000/month, rent ₹15,000/month, metro city, HRA received ₹18,000/month.
What to do if your Form 16 never included it
Gather rent receipts, the rent agreement, and bank transfer proof (not cash) showing payments to the landlord's own account. Claim it directly in the ITR's salary schedule even though it deviates from Form 16 — that deviation is legitimate, but keep the paperwork ready in case AIS flags it for review.
Paying rent to parents — legal, but document it
Paying rent to a parent who owns the house is a recognised way to claim HRA, provided the parent declares that rent as their own rental income and the payment trail is genuine and traceable. Treat it with the same documentation discipline as paying an unrelated landlord.
5. Mistake #3 — Missing or Undocumented Section 80C Proof
Section 80C caps deductions (PF, ELSS, life insurance premium, PPF, ELSS, principal repayment on a home loan, and more) at ₹1,50,000 — but only if you can produce proof when asked. A claim without documentation is a claim the department can disallow on scrutiny.
The math: ₹1,50,000 claimed but undocumented, disallowed at the 30% slab with 4% cess = 31.2% effective rate → ₹46,800 in tax you now owe, plus interest under Section 234B/234C on the shortfall if it's caught after filing.
What counts as valid proof
Premium payment receipts, ELSS statement showing the specific financial year's investment, PPF passbook entries, and the home loan principal certificate from your lender (separate from the interest certificate used for Section 24(b)). Keep these for at least the standard scrutiny-window period even after filing.
6. Mistake #4 — Wrong or Unvalidated Bank Account for Refund
Refund processing is now a fully electronic, no-manual-intervention pipeline — which is precisely why it is unforgiving of small errors. Per the Income Tax Department's own refund-status guidance, a refund can fail to credit if your bank account isn't pre-validated on the e-filing portal, if the name on the account doesn't exactly match your PAN records, or if your PAN itself has gone inoperative for want of an Aadhaar link. CBDT's own leadership has separately acknowledged that non-validation of the taxpayer's bank account is among the recurring, avoidable reasons large refunds sit in limbo well beyond the normal processing window.
Pre-validation, step by step
On the e-filing portal, go to Profile → My Bank Accounts, add the account, and complete pre-validation via EVC or net banking before you file — not after. Confirm the account holder name matches your PAN exactly, including initials.
If your refund has already failed
File a Refund Reissue Request from the e-filing portal's "Services" menu once you receive a refund-failure communication — don't act pre-emptively on a rumour of failure; wait for the official status update first.
7. Mistake #5 — AIS / Form 26AS Mismatch
Chartered accountant bodies including the Bombay Chartered Accountants' Society and tax advisory firms have flagged AIS/Form 26AS mismatches — job switches with unreconciled Form 16s, broker-reported capital gains entered manually and incorrectly, undeclared savings-account or FD interest, and dormant-account interest nobody remembered — as the single most common trigger for return-processing delays and notices this cycle.
The 10-minute reconciliation check before you file
Download your AIS and Form 26AS from the e-filing portal and place them side by side with your Form 16(s). Every TDS entry, every reported high-value transaction, and every capital-gains line should have a home in your return — either reported as income or explained. If something in AIS looks wrong, submit feedback through the AIS portal itself rather than silently ignoring it; an unresolved AIS flag doesn't disappear, it resurfaces later as a notice.
Common mismatch triggers
Switched employers mid-year without reconciling both Form 16s; a mutual fund redemption or property sale sitting in AIS that you weren't planning to report; interest from an account you forgot you still hold.
8. Mistake #6 — Filing the Wrong ITR Form
Filing ITR-1 when you actually have capital gains beyond the simplified thresholds, more than one house property, or foreign assets/income makes the return defective. A defective-return notice under Section 139(9) gives you 15 days to rectify — miss that window and the return can be treated as invalid, with refund processing halted until it's refiled correctly.
ITR-1 vs ITR-2 — the disqualifiers in 30 seconds
Move to ITR-2 if you have: long-term capital gains above ₹1.25 lakh under Section 112A, any capital losses to carry forward, more than one house property, foreign income or foreign assets, or director/unlisted-shareholding status. ITR-1 (Sahaj) is for straightforward salary, one house property, and modest other income only.
9. Mistake #7 — Forgetting to E-Verify
Filing isn't the finish line. Under the Income Tax Department's own rule, you must e-verify your return within 30 days of uploading it — via Aadhaar OTP, net banking, EVC, or a signed physical ITR-V sent to CPC Bengaluru. Miss that window and the return is treated as if it was never filed at all: refund forfeited, and if the 30 days lapse past the original due date, you're now also looking at a belated return with its own late fee.
10. Interactive Tool — ITR Mistake Risk Checker
🔐 CCF ITR Mistake Risk Checker
Educational estimator only — not a filing tool and not a substitute for the actual income tax e-filing utility. No data is stored or transmitted; everything runs in your browser for this session only.
11. The 10-Minute Pre-Filing Checklist
| Check | Where to do it |
|---|---|
| Regime comparison run for this year specifically | Both Section 115BAC and old-regime computation, not last year's default |
| Form 16 vs Form 26AS vs AIS reconciled | e-filing portal → AIS/TIS, matched line by line |
| Bank account pre-validated | Profile → My Bank Accounts on incometax.gov.in |
| Correct ITR form selected | Cross-check disqualifiers in Section 8 |
| 80C, HRA, home loan proofs saved (not just claimed) | A single folder — digital or physical — before you file, not after |
| Multiple Form 16s reconciled (if you switched jobs) | Combine both employers' salary figures manually if the portal doesn't auto-merge |
| E-verification reminder set for the moment you file | 30-day countdown starts the second you upload |
If you're gathering documents from scratch this week, our companion piece on building a realistic monthly budget by city is a useful next stop once refund season is behind you — it's easier to plan next year's 80C investments when this year's cash flow is mapped out properly.
12. What Happens If You Still Miss July 31
A belated return under Section 139(4) can be filed up to December 31, 2026 — but it comes at a real cost. Section 234F imposes a late fee of ₹5,000 if your total income exceeds ₹5 lakh, reduced to ₹1,000 if it doesn't, and Section 234A adds 1% simple interest per month on any unpaid tax from August 1 onward. Beyond the fee, a belated filer permanently loses the right to carry forward business and capital losses (barring house-property loss) to future years, and cannot switch into the old regime for that assessment year if they have business income requiring Form 10-IEA.
13. Should You Expect an Extension?
Based on statements to Parliament and reporting as of July 2026, the honest answer is: unlikely, but not impossible. Tax professionals quoted in the financial press point out that this year's forms, utilities and pre-filled data were ready well ahead of season — the exact condition that was missing last year and that triggered the September 2025 extension. The government has also been actively expanding portal capacity rather than announcing relief, which experts read as a signal that the July 31 date is intended to hold barring a major technical failure. Nothing here should be read as a guarantee either way — CrunchyCashFlow will update this article the same day if CBDT issues any notification changing the date.
14. FAQs — People Also Ask
No extension has been announced as of publication. Unlike AY 2025-26, this year's ITR forms and e-filing utilities were released well ahead of the season, which tax professionals say removes the main justification used for last year's extension to September. The government has instead focused on expanding portal capacity. This can change; check incometax.gov.in directly for any official notification before assuming either outcome.
You simply lose the tax benefit for that year — HRA exemption cannot be claimed retroactively outside the normal return/revision window. If you're still within the filing or revision deadline, claim it directly in the salary schedule using the formula in Section 4, backed by rent receipts and payment proof.
The most common reasons, per the Income Tax Department's own refund-status guidance, are an un-validated bank account, a name mismatch between your bank account and your PAN, or an inoperative PAN due to a pending Aadhaar link. Check Profile → My Bank Accounts on the e-filing portal and file a Refund Reissue Request once you receive an official refund-failure communication.
Yes. Your Form 16 reflects what your employer processed through payroll, but your ITR is the legal record of your actual tax position. You can claim HRA directly in the ITR even if Form 16 shows none, provided you retain rent receipts, the rent agreement, and bank transfer proof in case of a query.
An AIS (Annual Information Statement) mismatch happens when the income, TDS, or high-value transaction data the department has on file doesn't match what you're about to report — commonly from job switches, manually entered capital gains, or forgotten interest income. Reconcile AIS against Form 26AS and your Form 16(s) before filing, and submit feedback through the AIS portal itself if you spot an error, rather than ignoring it.
Yes, within 30 days of uploading your return, via Aadhaar OTP, net banking, EVC, or a signed ITR-V posted to CPC Bengaluru. An unverified return is treated as though it was never filed at all, forfeiting any refund and exposing you to late-filing consequences if the 30-day window lapses past the due date.
ITR-1 (Sahaj) suits salary income, one house property, and modest other income, including long-term capital gains up to ₹1.25 lakh under Section 112A with no losses to carry forward. Move to ITR-2 if you have more than one house property, larger or loss-making capital gains, foreign income or assets, or director/unlisted-share holdings.
Only if you have business or professional income and file ITR-3 or ITR-4. If you file ITR-1 or ITR-2, you simply tick "opting out of new regime" inside the return itself — no separate form, and you can change your choice every year, per the Income Tax Department's own Form 10-IEA FAQ.
15. Stay Crunchy
None of these seven mistakes require a CA's depth of knowledge to avoid — they require ten honest minutes with your AIS, your bank account settings, and a folder of proof for whatever you've claimed. The deadline math doesn't change no matter how many times you refresh Twitter for extension rumours. File the return you can defend, verify it within 30 days, and let the refund come to you instead of chasing it in October.
If you found this useful, the behavioural biases that trip up Indian investors piece covers the same "I assumed, therefore I lost money" pattern that shows up everywhere from ITR filing to SIP timing — worth a read once tax season is behind you.
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Founder & Editor · CrunchyCashFlow
Lead Analyst, Macro & Trade Policy · Economics and Trade Policy Analyst
Prateek Raj Tripathi is the founder and editor of CrunchyCashFlow. Prateek writes CrunchyCashFlow's tax and personal-finance coverage, translating CBDT notifications, Finance Act changes and e-filing portal updates into practical, dated guidance for Indian salaried taxpayers. He holds a Post-Graduate Diploma in International Trade and Business Law and has covered India's direct-tax cycle each season since the platform's launch. Read more on the About Us page..
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Disclosure: The views expressed are independent and for informational purposes only. They do not constitute financial, investment, or tax advice. Readers should consult a qualified, SEBI-registered financial adviser before making investment decisions.
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