May 2026 marks a crucial transition month for Indian taxpayers as the new Income Tax Act 2025 comes into force from April 1, 2026. Whether you're a salaried employee, business owner, or GST-registered entity, staying compliant with multiple overlapping deadlines is critical to avoid hefty penalties and interest charges. This month brings TDS deposits, quarterly return filings, GST compliance, and several annual statement submissions—all governed by a mix of old and new tax laws.
With the Income Tax Act 2025 effective from April 1, 2026, replacing the Income Tax Act 1961, taxpayers must now navigate dual compliance requirements. May 2026 is a transition month where old tax forms continue for FY 2025-26 reporting, while new law applies to transactions from April 1, 2026 onward. Missing even a single deadline can trigger daily penalties, interest charges, and compliance blocks. This comprehensive guide covers every critical deadline you cannot afford to miss in May 2026.
- May 7, 2026: Deposit TDS/TCS for April 2026 and submit Section 394(2) declarations—first major deadline under Income Tax Act 2025
- May 15, 2026: Issue TDS certificates for March deductions, file Form 24G, submit quarterly TCS statements—critical mid-month compliance checkpoint
- May 31, 2026: File Q4 TDS returns (Forms 24Q, 26Q, 27Q), annual statements (Form 61A, 61B), and multiple regulatory filings
- May 20, 2026: GSTR-3B filing deadline for monthly taxpayers; May 25 for QRMP scheme PMT-06 payment
Understanding the Income Tax Act 2025 Transition in May 2026
The Central Board of Direct Taxes (CBDT) notified the Income-tax Rules, 2026 vide Notification No. G.S.R. 198(E) dated 20 March 2026, which came into effect from 1 April 2026. This historic shift brings fundamental changes to how taxpayers report and comply with tax obligations.
What Changes in May 2026?
For transactions entered into on or after 01 April 2026, deductors/collectors must quote the relevant table item of section 393 (or section 394 for TCS) of the Income Tax Act, 2025, as quoting old section numbers such as 194C, 194J, or 194H may result in system-level validation errors. This is particularly important for May 2026 compliance involving April transactions.
For example, if M/s. XYZ Industries makes a payment to a contractor on 5th April, 2026, while filing the TDS return for Q1 of Tax Year 2026-27, the firm must quote Section 393(1) [Table: Sl. No. 6(i)] of the new Act, and not Section 194C of the old Act.
TDS obligations continue to be governed by the Act applicable to the financial year in which the sum is paid or credited, so any sum paid or credited on or before 31st March, 2026 is governed by the Income Tax Act, 1961. This dual-framework approach requires careful attention during May 2026 filings.
Critical Income Tax Compliance Deadlines in May 2026
May 7, 2026: TDS/TCS Deposit for April 2026
Taxpayers are required to deposit tax deducted at source (TDS) and tax collected at source (TCS) for April by May 7. This is the first major deadline under the Income Tax Act 2025 for most deductors.
Who must comply: All non-government deductors who deducted TDS in April 2026 from salaries, contractor payments, professional fees, rent, interest, or other specified payments under Section 393 of the Income Tax Act 2025.
Government offices making payments without a challan must credit the tax to the Central Government on the same day. The tax deducted in the month of March, 2026 is required to be deposited by 30th April, 2026 by non-government deductors, while for Government Deductors depositing TDS by way of challan, the due date is 7th April, 2026.
Penalty for non-compliance: If TDS is deposited late, it attracts interest liability at 1.5% per month from the date of deduction to the date of actual payment. Use Income Tax Calculator to estimate your tax liability accurately.
May 7, 2026: Section 394(2) Declarations
This date also marks the deadline for submitting declarations under Section 394(2) of the Income-tax Act, 2025, which allows buyers to procure goods without the collection of tax for transactions carried out in April. This provision streamlines tax collection for specified categories of buyers.
May 15, 2026: Multiple Mid-Month Compliance Requirements
May 15 is a critical checkpoint for several parallel obligations:
1. TDS Certificate Issuance: Taxpayers must issue TDS certificates for deductions made in March under provisions such as Section 194-IA for property transactions, Section 194-IB for high-value rent, and Section 194M for payments to contractors or professionals.
2. Form 24G Filing: Government offices that deposited TDS or TCS without challans must submit Form 24G by this date.
3. Quarterly TCS Statement (Q4 FY 2025-26): The quarterly statement of TCS for the period ending March 31, 2026, is due on May 15.
4. Provident Fund and ESI Deposits: Employers must deposit Provident Fund (PF) and Employee State Insurance (ESI) contributions for April by May 15, 2026.
Missing the May 15 deadline for TDS certificates can result in penalties under Section 272A(2), potentially up to ₹100 per day of delay. Track your TDS credits seamlessly with our Form 26AS / TDS Fetch Tool.
May 30, 2026: TCS Certificates and Annual Statements
Companies must issue TCS certificates for the fourth quarter of the financial year 2025–26 under Section 394 of the Income-tax Act, 2025. On the same day, entities engaged in film production or notified activities under Section 285B of the Income-tax Act, 1961 are required to submit their annual statements.
Taxpayers must also file challan-cum-statements for TDS under sections 194-IA, 194-IB, and 194M by May 30, 2026 (for deductions made in April under the old Act provisions).
May 31, 2026: The Biggest Compliance Day
May 31 stands out as one of the most significant compliance dates, with several filings due. This is the single most important deadline for quarterly and annual filings:
1. Quarterly TDS Returns (Q4 FY 2025-26): The deadline for filing quarterly TDS returns for the quarter ending March 31 applies, including Forms 24Q, 26Q, 27Q, and related forms.
- Form 24Q: TDS on salary payments
- Form 26Q: TDS on all non-salary payments
- Form 27Q: TDS on payments to non-residents
- Form 27D: TCS statement by government entities
Late filing penalty: Penalty of Rs 200 per day as per Section 427 (Section 234E of the Income Tax Act, 1961) needs to be paid, however late fee cannot exceed the amount of TDS deducted. Additionally, persons who fail to file the TDS/TCS statement within the due date may have to pay a penalty ranging from Rs 10,000 to Rs 1 lakh under section 271H.
2. Form 61B Filing: Financial institutions are required to e-file their annual statement of reportable accounts for calendar year 2025 in Form 61B under Section 285BA.
3. Form 61A Filing: Specified entities must submit statements of financial transactions in Form 61A for the financial year 2025–26.
4. Superannuation Fund Returns: Trustees of approved superannuation funds must file returns for tax deducted from contributions.
5. PAN Applications: Individuals whose income exceeds the basic exemption limit but who do not possess a PAN are required to apply for one, along with certain key officials such as directors, partners, and trustees.
For complex transactions involving capital gains, use our Capital Gain Calculator to determine accurate tax obligations.
GST Compliance Calendar for May 2026
May 2026 brings equally important GST filing obligations that businesses cannot overlook. May 2026 is packed with critical compliance deadlines across GST, TDS, PF, ESI, and Income Tax.
May 11, 2026: GSTR-1 Filing for April 2026
The GSTR-1 reports details of all outward supplies (sales), and the GST 1 due date is the 11th of the following month. Monthly taxpayers must file GSTR-1 for April 2026 sales by May 11, 2026.
May 13, 2026: IFF Filing for QRMP Taxpayers
Quarterly Return Monthly Payment (QRMP) scheme taxpayers with turnover up to ₹5 crore can file Invoice Furnishing Facility (IFF) for the first two months of the quarter by the 13th of the following month. This enables buyers to claim Input Tax Credit (ITC) promptly.
May 20, 2026: GSTR-3B Monthly Summary Return
On May 20, 2026, businesses are required to file GSTR-3B, the monthly summary return under GST. GSTR-3B is a summary return that contains details of sales, purchases, tax liability, and ITC claims, with due date being the 20th of the following month.
Who files: Regular taxpayers with aggregate turnover exceeding ₹5 crore in the previous financial year, or those not opted into the QRMP scheme.
Penalty for late filing: Non-filing triggers stiff late fees starting at ₹50 per day (₹25 CGST + ₹25 SGST) capped at ₹5,000, plus 18% interest per annum on late tax payments.
May 25, 2026: PMT-06 for QRMP Scheme
Taxpayers under the QRMP scheme must complete their tax payment via PMT-06 by May 25, 2026 for the first two months of the April-June quarter.
Key Changes in GST Filing from 2026
The year 2026 brings about certain changes in the rules that come into play from January 1st through GST council recommendations. The GST portal now prevents filing any return more than three years past its due date. Returns pending beyond this window become permanently unfiled; one missed return from 2021 cannot be filed in 2026.
This strict enforcement makes timely compliance more critical than ever. The system enforces sequential filing—you cannot file December's return if November remains pending, creating cascading blocks that multiply penalties.
May 2026 Tax Compliance Calendar: Complete Overview Table
| Date | Compliance Requirement | Applicable Act/Form | Penalty for Non-Compliance |
|---|---|---|---|
| May 7, 2026 | Deposit TDS/TCS for April 2026 | Section 393/394, Income Tax Act 2025 | Interest @ 1.5% per month |
| May 7, 2026 | Submit Section 394(2) declarations | Income Tax Act 2025 | Transaction may face tax collection |
| May 11, 2026 | File GSTR-1 for April 2026 | GST Act | Late fee ₹50/day (max ₹5,000) |
| May 13, 2026 | File IFF (QRMP taxpayers) | GST Act | Buyer's ITC delay |
| May 15, 2026 | Issue TDS certificates (March deductions) | Sections 194-IA, 194-IB, 194M | Penalty up to ₹100/day (Section 272A) |
| May 15, 2026 | File Form 24G (Govt offices) | Income Tax Act 1961/2025 | Compliance notice |
| May 15, 2026 | Submit Q4 TCS statement (FY 2025-26) | Section 394, Income Tax Act 2025 | Penalty ₹200/day + Section 271H |
| May 15, 2026 | Deposit PF and ESI for April | EPF Act, ESI Act | Interest + damages |
| May 20, 2026 | File GSTR-3B for April 2026 | GST Act | Late fee ₹50/day + 18% interest |
| May 25, 2026 | Pay PMT-06 (QRMP scheme) | GST Act | Interest on delayed payment |
| May 30, 2026 | Issue TCS certificates (Q4 FY 2025-26) | Section 394, Income Tax Act 2025 | Penalty under Section 272A |
| May 30, 2026 | File annual statements (film production) | Section 285B, Income Tax Act 1961 | Penalty provisions apply |
| May 30, 2026 | File challan-cum-statements (194-IA/IB/M) | Income Tax Act 1961 | Penalty ₹200/day |
| May 31, 2026 | File Q4 TDS returns (24Q, 26Q, 27Q, 27D) | Income Tax Act 1961 | ₹200/day + ₹10,000-₹1,00,000 |
| May 31, 2026 | File Form 61B (financial institutions) | Section 285BA | Penalty under Section 271FA |
| May 31, 2026 | File Form 61A (specified entities) | Section 285BA | Penalty provisions apply |
| May 31, 2026 | Apply for PAN (if income exceeds limit) | Income Tax Act | Penalty ₹10,000 |
Practical Examples: May 2026 Tax Scenarios
Example 1: Contractor Payment Under New Act
ABC Enterprises paid ₹2,50,000 to a contractor on April 10, 2026 for civil work. Since payment occurred after April 1, 2026:
- TDS deduction: Reference Section 393(1) [Table: Sl. No. 6(i)] at 2% = ₹5,000
- Deposit deadline: May 7, 2026
- Quarterly return: File Form 26Q by July 31, 2026 (Q1 of Tax Year 2026-27)
- Late deposit interest: 1.5% per month if deposited after May 7
Example 2: Professional Fees for March 2026
XYZ Pvt Ltd paid ₹1,00,000 professional fees to a consultant on March 25, 2026:
- TDS deduction: Section 194J (old Act) at 10% = ₹10,000
- Deposit deadline: April 30, 2026 (already passed)
- Certificate issuance: May 15, 2026 (Form 16A)
- Quarterly return: File Form 26Q by May 31, 2026 (Q4 FY 2025-26)
Example 3: Property Sale by NRI
An individual purchased property worth ₹75,00,000 from an NRI on April 20, 2026:
- TDS rate: 20% (or as per DTAA) on full value
- TDS amount: ₹15,00,000 (approximately, subject to indexation adjustments)
- As per Budget 2026 changes, the buyer is no longer required to apply for a TAN; they can now obtain a PAN-based challan and fulfil the TDS requirements
- Payment deadline: Within 30 days from end of April = May 30, 2026
- Form filing: Challan-cum-statement within the same timeline
Calculate accurate HRA exemptions for your salary planning with our HRA Calculator.
Key Budget 2026 Changes Affecting May 2026 Compliance
Finance Minister Nirmala Sitharaman announced staggered ITR deadlines while presenting Union Budget 2026 on 1 February, stating that individuals filing ITR 1 and ITR 2 shall continue to file tax returns by 31st July, and for non-audit business cases or trusts, 31st August shall be the due date.
TCS Rate Rationalization
The TCS rate on sale of alcoholic liquor for human consumption, sale of scrap, and sale of minerals were increased to 2% from the existing 1%. TCS rate on sale of tendu leaves and remittance under LRS for education and medical treatment has been reduced to 2% from the existing 5%. TCS on remittance under LRS for overseas tour package has been reduced to a single flat rate of 2% without threshold.
Revised Return Filing Extension
The due date to file a revised return was extended to 12 months from the end of the relevant tax year from the existing 9 months, making the new due date for filing revised returns 31st March.
MAT Changes for Companies
Ending further accumulation from 1st April, 2026, MAT is proposed to be made final tax, with the rate of final tax reduced to 14 percent from the current MAT rate of 15 percent. The brought forward MAT credit of taxpayers accumulated till 31st March 2026 will continue to be available for set-off.
Avoiding Penalties: Best Practices for May 2026
1. Maintain a Compliance Calendar: Mark all deadlines (May 7, 15, 20, 25, 30, and 31) prominently and set reminders 3-5 days in advance.
2. Update Software Systems: Systems are required to be updated to reflect new section numbering, terminology, and reporting requirements under the Income Tax Act, 2025.
3. Verify Section References: For all April 2026 transactions, ensure you're using Section 393/394 table items, not old section numbers like 194C or 194J.
4. Reconcile TDS Credits: During the transition, mismatches may arise due to the deductor quoting section numbers corresponding to the old Act instead of quoting sections of the new Act. Early reconciliation is advisable, and if there is a mismatch in TDS, the deductee should immediately inform the employer/deductor responsible for deducting tax.
5. Sequential GST Filing: Ensure previous months' GST returns are filed before attempting current month filing to avoid system blocks.
6. Use Digital Tools: Leverage online platforms like Bank Statement Analyser for accurate transaction tracking and reconciliation.
7. Maintain Documentation: Keep all challans, acknowledgments, and certificates organized by deadline for quick reference during audits.
8. Professional Consultation: For complex transactions involving international payments, transfer pricing, or multiple deductions, consult a tax professional before deadlines.
Common Mistakes to Avoid in May 2026
❌ Using old section numbers for April 2026 transactions: This will cause validation errors and return rejection.
❌ Mixing FY 2025-26 and FY 2026-27 forms: Q4 returns (Jan-March 2026) use old Act forms; Q1 returns (April-June 2026) use new Act references.
❌ Depositing TDS on 8th instead of 7th: Even one day's delay attracts 1.5% monthly interest.
❌ Filing GSTR-3B before resolving previous month blocks: GST portal enforces sequential filing.
❌ Ignoring small penalties: Late fees of ₹200/day compound quickly and can exceed the actual tax liability.
❌ Not issuing TDS certificates by May 15: This creates compliance issues for deductees claiming credits.
❌ Missing Form 61A/61B deadlines: Financial institutions face automatic penalties with no extension options.
Frequently Asked Questions (FAQs)
What is the TDS payment deadline for April 2026 deductions?
TDS deducted in April 2026 must be deposited by May 7, 2026. This applies to non-government deductors under Section 393 of the Income Tax Act 2025. Government deductors paying through challan must also deposit by May 7. Failure to deposit by this date attracts interest at 1.5% per month under Section 234A, calculated from deduction date to actual payment date.
What is the GST return filing deadline for May 2026?
For May 2026, GSTR-1 must be filed by June 11, 2026 for monthly filers. GSTR-3B is due by June 20, 2026. For QRMP taxpayers (turnover up to ₹5 crore), the April-June quarter GSTR-1 is due by July 13, 2026, and GSTR-3B by July 22 or 24 depending on state category. Late filing attracts penalty of ₹50 per day (₹25 CGST + ₹25 SGST), capped at ₹5,000.
When is the quarterly TDS return due date for January-March 2026?
The quarterly TDS return for Q4 FY 2025-26 (January to March 2026) must be filed by May 31, 2026. This includes Forms 24Q for salary TDS, 26Q for non-salary payments, 27Q for TCS, and 27D for TCS by government entities. Late filing attracts penalty of ₹200 per day under Section 234E, with maximum penalty capped at TDS amount. Additionally, penalty under Section 271H ranges from ₹10,000 to ₹1,00,000.
What are the key differences between Income Tax Act 1961 and 2025 for May 2026 compliance?
From April 1, 2026, the Income Tax Act 2025 is effective. For May 2026 compliance, TDS/TCS deducted in April 2026 onwards must quote Section 393 or 394 references (table item numbers) instead of old sections like 194C, 194J. Payments made before March 31, 2026 continue under 1961 Act. Forms remain largely same for FY 2025-26 reporting (old Act), but new transactions from April 2026 fall under Act 2025. This is a transition month requiring careful section reference selection.
What happens if I miss the May 15 TDS certificate issuance deadline?
TDS certificates for March 2026 deductions under Sections 194-IA (property), 194-IB (rent), and 194M (contractor payments) must be issued by May 15, 2026. Missing this deadline can result in penalty under Section 272A(2) of up to ₹100 per day of default. Additionally, the deductee may face issues claiming TDS credit in Form 26AS, potentially leading to notices from the Income Tax Department. Timely issuance ensures smooth credit reconciliation for taxpayers.
Conclusion: Stay Compliant, Stay Penalty-Free
May 2026 represents a watershed moment in Indian tax compliance as taxpayers navigate the historic transition from the Income Tax Act 1961 to the Income Tax Act 2025. With seven critical deadlines spanning TDS deposits, quarterly returns, GST filings, and annual statements, staying organized and proactive is non-negotiable.
Missing even a single deadline triggers cascading penalties—from daily late fees of ₹200 under Section 234E to interest charges of 1.5% per month, and potential prosecution under Section 276B for serious non-compliance. The new sequential filing requirements for GST and the permanent 3-year bar on old returns make timely action more critical than ever.
Whether you're handling contractor payments under Section 393, reconciling quarterly TDS returns, or ensuring GSTR-3B compliance by May 20, precision in section references and deadline adherence will save you thousands in penalties and countless hours resolving notices.
Take action today: Mark your calendar, update your accounting systems with new section references, reconcile your Form 26AS with actual deductions, and set up automated reminders for each deadline. Don't let compliance become a burden—leverage TaxFetch India's comprehensive suite of tax automation tools to streamline your May 2026 obligations and ensure 100% accuracy in every filing.
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