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Direct Tax Laws & International Taxation · Basic Concepts

Tax Deduction and Collection at Source Certificates

Updated 5 October 2026 · Fact-checked

A TDS or TCS certificate is the document a deductor or collector gives the payee as proof of tax deducted or collected and deposited. To solve questions, identify whether it is salary, other TDS or TCS, find the quarterly statement due date, add the prescribed days, and check the particulars and late-issue penalty.

Understand Tax Deduction and Collection at Source Certificates

When you deduct tax from a payment, the payee has not paid that tax to the government. You did, on the payee's behalf. The payee needs proof to claim credit for it. That proof is the TDS certificate. For tax collected at source, the same proof is the TCS certificate.

The Income-tax Act, 2025 requires the deductor or collector to furnish this certificate to the payee, and the Income-tax Rules, 2026 prescribe the form, the particulars and the time limit. The form numbers and rule numbers were renumbered from the old law, so use the numbers given in your ICAI material. The logic is the same as before and is what the exam tests.

There are three groups to keep apart. First, the salary certificate, issued once a year. It has two parts: one shows tax deducted and deposited, the other shows the salary computation. Second, the non-salary TDS certificate, issued quarterly for other payments such as contractor fees, interest, rent and professional fees. Third, the TCS certificate, also issued quarterly by the collector. Certain special TDS cases, such as property purchase, also have their own certificate forms. The timeline differs for each group.

The key trigger is the quarterly statement. A non-salary or TCS certificate is tied to the due date of the statement, not to the date you actually file it. The certificate is generated from the information in the filed statement through the TRACES portal. So a statement filed late means a certificate issued late.

Failure to furnish a certificate on time attracts a per-day penalty for as long as the default continues. Payees also lose time in claiming credit, which is why this is a compliance topic and an easy case-scenario question.

Key rules to remember

Salary TDS certificate timeline
Due date = 15 June following the end of the financial year (position under the 1961 Rules, Form 16)
Issued once a year, covering the whole tax year. 15 June is the due date under the 1961 Rules. The timeline under the Income-tax Rules, 2026 must be verified in your ICAI material. If the same date is carried over, tax year 2026-27 gives 15 June 2027. This is the same date as the Q4 non-salary TDS certificate, so do not mix the two up.
Non-salary TDS certificate timeline
Due date = 15 days from the due date of furnishing the quarterly TDS statement
Counted from the statement's due date, not the actual filing date. The statement due dates 31 July (Q1), 31 October (Q2), 31 January (Q3) and 31 May (Q4) are the dates under the 1961 Act Rules. Confirm them under the Income-tax Rules, 2026 as per ICAI material.
TCS certificate timeline
Due date = a prescribed number of days from the due date of the quarterly TCS statement
Same logic as non-salary TDS: count from the statement's due date. Do not assume the TCS statement and certificate dates are identical to TDS. Under the old law the Q4 TCS statement was due 15 May and the certificate by 30 May. Verify the TCS statement and certificate dates in your ICAI material before using them.
Quarterly TDS certificate due dates (quick table)
Q1 (Apr-Jun): 15 Aug | Q2 (Jul-Sep): 15 Nov | Q3 (Oct-Dec): 15 Feb | Q4 (Jan-Mar): 15 Jun
For non-salary TDS only. Derived from the old-law statement due dates plus 15 days. Under the 1961 Act Rules the Q4 TDS statement is due 31 May, so the Q4 certificate is due 15 June. The salary certificate is also due on 15 June, so the two dates coincide for Q4 only. Confirm all these dates under the 2026 Rules per ICAI material. Do not apply this table to TCS without checking.
Particulars to be shown
Deductor/collector name, address, PAN and TAN; payee name and PAN; nature and amount of payment; tax deducted or collected; date and details of deposit (challan); statement receipt reference
A certificate missing the challan or deposit details is incomplete.
Penalty for delay
₹100 per day of failure, limited to the amount of tax deductible or collectible in respect of the failure (old-law position)
Under the 1961 Act this penalty was in section 272A(2)(g), and the penalty could not exceed the tax deductible or collectible in respect of the failure. The corresponding provision and the exact cap wording in the Income-tax Act, 2025 must be taken from your ICAI material. Do not treat the 2025 position as confirmed until you have checked it. Whether the penalty is counted separately for each certificate must also be taken from your ICAI material.

How to solve Tax Deduction and Collection at Source Certificates questions

Use this sequence for any question on certificates of tax deducted or collected at source.

  1. 1Identify the type: salary TDS, non-salary TDS, special TDS case, or TCS.
  2. 2Find the period covered. Salary is the full tax year. Other cases are by quarter.
  3. 3For salary, fix the due date as 15 June after the tax year ends, and confirm it under the Income-tax Rules, 2026 as per ICAI material.
  4. 4For non-salary TDS, take the due date of the quarterly statement for that quarter and add 15 days. For TCS, use the statement and certificate dates given in your ICAI material or in the question.
  5. 5Compare the actual issue date with the due date. Count the days of delay from the day after the due date.
  6. 6Compute the penalty at ₹100 per day of failure, limited to the tax deductible or collectible in respect of the failure.
  7. 7Check the particulars: PAN, TAN, amount, tax and challan details. Note any missing item.
  8. 8Write the answer as provision, facts, conclusion: rule, dates and days, then the consequence.

Quickest way: Quarter-and-add-15 shortcut

When to use it: Use it for non-salary TDS when the question gives you a quarter or a statement filing date and asks for the due date or penalty. For TCS, check the dates first.

  1. Salary? Answer 15 June after the tax year (old-rule position; verify under the 2026 Rules). Stop.
  2. For non-salary TDS, map the quarter to its statement due date: 31 Jul, 31 Oct, 31 Jan, 31 May (Q4). These are the 1961 Rules dates; confirm them under the 2026 Rules in ICAI material.
  3. Add 15 days: 15 Aug, 15 Nov, 15 Feb, 15 Jun (Q4 certificate).
  4. For TCS, do not reuse these dates. The Q4 TCS dates differ under the old law, so verify them in your material.
  5. Ignore the date the statement was actually filed.
  6. Delay days × ₹100, then cap at the tax deductible or collectible in respect of the failure (cap as in the old law; confirm the 2025 Act wording).

Common mistakes in Tax Deduction and Collection at Source Certificates

  • Counting 15 days from the date the statement was actually filed

    The question gives a filing date, so it feels like the starting point.

    Fix: Always count from the statutory due date of the statement. The filing date is a distractor.

  • Applying the quarterly 15-day rule to the salary certificate

    Students merge the two timelines into one.

    Fix: Salary is annual, due 15 June after the tax year (the old-rule position; verify under the 2026 Rules). The quarter-plus-15-days rule is only for non-salary TDS and, with its own dates, TCS. The Q4 non-salary certificate also falls on 15 June, but only by coincidence.

  • Treating TDS and TCS Q4 dates as identical

    Both are quarterly statements, so students assume one set of dates.

    Fix: Under the old Rules the Q4 TDS statement is due 31 May, while the TCS Q4 statement was due 15 May. Verify both sets of dates in ICAI material.

  • Forgetting the penalty cap

    The per-day figure is remembered, the limit is not.

    Fix: Under the old law the penalty could not exceed the tax deductible or collectible in respect of the failure. Compare your computed amount with that tax figure and confirm the 2025 Act wording in ICAI material.

  • Treating TCS certificate as a TDS certificate issued by the buyer

    Both are 'source' certificates and sound alike.

    Fix: The TCS certificate is issued by the seller or collector who collected the tax. The TDS certificate is issued by the payer who deducted it.

  • Ignoring the particulars requirement

    Students focus only on dates.

    Fix: List PAN, TAN, payment details, tax amount and challan details. Case scenarios may hide a missing PAN or challan detail.

  • Using the old 1961 Act terms like assessment year in the answer

    Older notes and coaching habits.

    Fix: Write 'tax year' and use the Income-tax Act, 2025 terminology throughout.

Worked examples

Example 1

Alpha Ltd deducted tax from contractor payments in July to September 2026 (tax year 2026-27), total tax ₹40,000. It filed the quarterly TDS statement on 20 October 2026, before the due date. It issued the certificate to the contractor on 30 November 2026. Assume the Q2 statement due date is 31 October. Is there a default, and what is the consequence?

Show the solution
  1. Type: non-salary TDS, so the certificate is quarterly.
  2. Quarter: July to September, which is Q2. Assuming the statement due date is 31 October 2026 (the 1961 Rules date; confirm under the 2026 Rules per ICAI material).
  3. Certificate due date = 31 October 2026 + 15 days = 15 November 2026. The early filing on 20 October does not change this.
  4. Actual issue date: 30 November 2026. Delay = 15 days (16 to 30 November).
  5. Penalty at ₹100 per day (old section 272A(2)(g) position) = 15 × ₹100 = ₹1,500. Confirm the corresponding provision of the 2025 Act in ICAI material.
  6. Cap check: ₹1,500 is below the tax of ₹40,000, so the cap does not bite.

Answer: On the stated assumptions, the certificate was issued 15 days late. The penalty is ₹1,500 at ₹100 per day, within the cap of ₹40,000.

Example 2

Beta Pvt Ltd issued salary TDS certificates for tax year 2026-27 on 25 June 2027. Assume the due date is 15 June 2027 and that the tax deductible in respect of this failure is ₹8,00,000. Illustrate the delay and the penalty on these assumptions.

Show the solution
  1. Type: salary TDS, annual certificate.
  2. Due date: assumed to be 15 June 2027, following the end of tax year 2026-27 on 31 March 2027. This is the 1961 Rules (Form 16) position; the timeline under the Income-tax Rules, 2026 must be verified in ICAI material.
  3. Actual issue date: 25 June 2027. Delay = 10 days (16 to 25 June).
  4. Penalty at ₹100 per day of failure (old section 272A(2)(g) position) = 10 × ₹100 = ₹1,000. Take the corresponding 2025 Act provision from ICAI material.
  5. Cap check: the old-law cap is the tax deductible in respect of the failure, assumed here to be ₹8,00,000. ₹1,000 is far below it, so the cap does not bite.

Answer: On the stated assumptions, the certificates were 10 days late. The illustrative penalty is ₹1,000 at ₹100 per day, within the assumed cap of ₹8,00,000. A certificate issued on 10 June 2027 would have been on time.

Exam tips

  • In case-scenario MCQs, the trap is usually a distractor date. Find the statutory statement due date first.
  • Memorise the four TDS statement due dates and add 15 days. It takes five seconds in the exam. Check TCS dates separately.
  • Keep salary and non-salary timelines separate. Write them side by side in your answer.
  • In written answers, use provision-facts-conclusion and show the day count. Marks go for working.
  • Use the Income-tax Act, 2025 vocabulary: tax year, deductor, collector. Check form numbers, rule numbers and the penalty provision in your ICAI material before the exam.

Practice questions from Basic Concepts

Tax Deduction and Collection at Source Certificates in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Tax Deduction and Collection at Source Certificates: frequently asked questions

When must a TDS certificate be issued to the deductee?

Under the 1961 Rules, for salary it was by 15 June after the end of the financial year. For other payments it was within 15 days from the due date of the quarterly TDS statement. Confirm the timelines under the Income-tax Rules, 2026 in your study material.

What is the timeline for a TCS certificate?

The collector issues it within the prescribed period from the due date of the quarterly TCS statement. Do not assume the dates match TDS, especially for Q4. Check the TCS statement and certificate dates in your ICAI material.

Is a certificate issued before the TDS statement is filed?

The certificate is generated from the filed statement through TRACES, so the statement comes first. Filing late delays the certificate and can lead to a penalty.

Which rule of the Income-tax Rules, 2026 covers certificates of tax deducted at source?

The Rules prescribe the form, particulars and time limit, but cite a rule number only if it is given in your ICAI material. In the exam, state the rule in words along with the due dates, which are what carry marks.