When should I pay Self Assessment Tax?

Pay Self Assessment Tax before filing your ITR. For FY 2024-25, pay before July 31, 2025 (ITR due date) to avoid interest under Section 234A.

What is Minor Head 300 in Challan 280?

Minor Head 300 is the code for Self Assessment Tax in Challan 280. Use this when paying balance tax at the time of ITR filing.

Online Self Assessment Tax Payment Services in Dwarka Delhi

Pay your Self Assessment Tax (SAT) before filing ITR. We help calculate balance tax, prepare Challan 280 with Minor Head 300, and ensure error-free online payment. Avoid interest under Section 234A, 234B & 234C. Serving Dwarka, Delhi since 2008.

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Challan 280 (300)

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Understanding SAT

What is Self Assessment Tax?

Self Assessment Tax is the balance tax you pay before or while filing your Income Tax Return

Self Assessment Tax Explained

Self Assessment Tax (SAT) is the balance tax liability that remains after accounting for:

TDS (Tax Deducted at Source) - By employer, bank, etc.
TCS (Tax Collected at Source) - On purchases
Advance Tax - Paid during the financial year
Relief under Section 89/90/91 - If applicable

When you calculate your total tax liability while filing ITR and find that TDS + Advance Tax is less than total tax due, the difference is Self Assessment Tax.

Important: Self Assessment Tax must be paid before filing ITR. You cannot file ITR with tax dues pending (except in specific cases).

Tip: Pay self assessment tax a few days before ITR filing to allow time for reflection in Form 26AS.

Self Assessment Tax Formula

Total Tax Liability (including Cess)₹ A

Less: TDS as per Form 26AS- ₹ B

Less: TCS as per Form 26AS- ₹ C

Less: Advance Tax Paid- ₹ D

Less: Relief u/s 89/90/91- ₹ E

Self Assessment Tax Payable

₹ (A-B-C-D-E)

+ Interest u/s 234A/234B/234C if applicable

Key Difference

Advance Tax vs Self Assessment Tax

Understanding when to pay which tax

Advance Tax

Challan 280 - Minor Head 100

When: Paid during the financial year in quarterly installments

Due Dates: June 15, Sept 15, Dec 15, March 15

Purpose: Pay tax as you earn income throughout the year

Based On: Estimated income for the full financial year

Interest: 234B (default) + 234C (deferment) if not paid on time

Self Assessment Tax

Challan 280 - Minor Head 300

When: Paid before or at the time of filing ITR

Due Date: Before ITR filing (July 31 for individuals)

Purpose: Pay balance tax after TDS and Advance Tax

Based On: Actual income computed while filing ITR

Interest: 234A (late filing) + 234B/C if advance tax was short

Challan Details

Challan 280 for Self Assessment Tax

Correct codes and details for error-free tax payment

Challan 280 - Code ReferenceChallan NumberITNS 280
Major Head (Individuals)0021
Major Head (Companies)0020
Minor Head - Self Assessment300
Minor Head - Advance Tax100
Minor Head - Regular Assessment400
Assessment Year (FY 2024-25)2025-26

Understanding Challan Fields

Tax (Basic Tax Amount)Main tax payable

Surcharge (If income > ₹50L)10%/15%/25%/37%

Education Cess (Health & Education)4% on Tax+Surcharge

Interest 234A (Late ITR filing)1% per month

Interest 234B (Advance Tax default)1% per month

Interest 234C (Installment default)1% per month

Fee 234F (Late filing fee)₹1,000/₹5,000

Payment Modes

Online Tax Payment Options

Multiple convenient ways to pay your self assessment tax

Net Banking

Pay through authorized bank's internet banking. SBI, HDFC, ICICI, Axis & all major banks supported.

Recommended

Debit Card

Pay using Visa/Mastercard/RuPay debit card. Transaction charges may apply (0.5-1%).

Instant

UPI Payment

Pay via UPI apps - Google Pay, PhonePe, Paytm. Use UPI ID or scan QR code.

No Charges

NEFT/RTGS

Bank transfer for large amounts. Generate challan, pay via NEFT/RTGS to RBI account.

Large Amounts

Interest Sections

Interest for Late/Short Payment

Understanding interest under Sections 234A, 234B & 234C

Section 234A

Interest for Late Filing of ITR

Interest = Tax Due × 1% × Months of Delay

Charged when ITR is filed after due date. Calculated from due date (July 31) to actual filing date. Simple interest @ 1% per month or part of month.

Section 234B

Interest for Default in Advance Tax

Interest = Shortfall × 1% × Months

Charged if advance tax paid < 90% of assessed tax. Calculated from April 1 of AY to date of payment. Simple interest @ 1% per month.

Section 234C

Interest for Deferment of Installment

Interest = Shortfall × 1% × 3 Months

Charged for shortfall in quarterly advance tax installments. 1% per month for 3 months on shortfall amount for each quarter.

Service Packages

Self Assessment Tax Services in Dwarka Delhi

Professional tax calculation and payment assistance at affordable rates

Tax Calculation

Accurate self assessment tax computation

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Per calculation

Income Computation
TDS Credit Verification (26AS)
Advance Tax Adjustment
Interest Calculation (234A/B/C)
Exact Tax Amount

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Tax Payment Service

Calculation + Challan + Payment

₹499₹999

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Everything in Calculation +
Challan 280 Preparation
Correct Code Selection (300)
Online e-Payment
Challan with BSR/CIN
26AS Credit Verification

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Tax Payment + ITR Filing

Complete package with ITR filing

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Complete package

Everything in Payment +
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When to Pay

When Do You Need to Pay Self Assessment Tax?

Common scenarios requiring self assessment tax payment

Salaried with Other Income

Interest income, capital gains, rental income, freelance earnings not fully covered by TDS require self assessment tax.

Capital Gains Tax

Profits from shares, mutual funds, property sale often have no TDS. Full tax payable as self assessment.

Business/Professional Income

When advance tax was not paid or was underpaid during the year, balance becomes self assessment tax.

Advance Tax Shortfall

If actual income exceeds estimated income, and advance tax paid is less than liability.

Rental Income

House property income with inadequate TDS under Section 194-IB requires self assessment tax payment.

Interest on Late Filing

Interest under 234A for filing ITR after due date is also paid along with self assessment tax.

FAQs

Self Assessment Tax FAQs - Dwarka Delhi

Advance Tax is paid during the financial year in quarterly installments (June, Sept, Dec, March) based on estimated income. Use Minor Head 100. Self Assessment Tax is the balance tax paid before/during ITR filing after adjusting TDS and advance tax from actual computed tax. Use Minor Head 300. Both use Challan 280 but different minor heads. Our Dwarka office ensures correct selection to avoid credit issues.

Pay self assessment tax before filing your ITR. Ideally, pay 2-3 days before ITR filing to allow time for reflection in Form 26AS. For FY 2024-25 (AY 2025-26), if your ITR due date is July 31, 2025, pay before that. If filing late, pay along with interest under Section 234A. Important: You cannot file ITR with tax dues pending (except when tax demand arises from assessment).

Minor Head 300 is the code specifically for Self Assessment Tax in Challan 280. When paying tax at the time of ITR filing (balance tax after TDS/Advance Tax), always select Minor Head 300. Other codes: 100 = Advance Tax, 400 = Tax on Regular Assessment (demand). Using wrong code can cause credit mismatch - our Dwarka team ensures correct selection every time.

Formula: Self Assessment Tax = Total Tax Liability - TDS - TCS - Advance Tax - Relief. Example: If your total tax is ₹2,00,000, TDS is ₹1,50,000, and advance tax paid is ₹20,000, then SAT = ₹2,00,000 - ₹1,50,000 - ₹20,000 = ₹30,000. Add interest under 234A/B/C if applicable. Our CA will calculate exact amount including all applicable interest.

After payment, verify credit in 1-3 days: (1) Login to www.incometax.gov.in. (2) Go to e-File → Income Tax Returns → View Form 26AS. (3) Check Part C - Details of Tax Paid (Other than TDS/TCS). Your self assessment tax should appear with BSR Code, Challan Serial, Date, and Amount. If not reflecting, verify CIN number and contact bank. Our Dwarka office helps resolve credit issues.

Generally No. ITR cannot be filed with tax dues pending. The portal shows error if self assessment tax is not paid. However, in some cases like TDS credit mismatch (you have proof but not reflecting in 26AS), you may file and claim credit. Also, tax demand from assessment order can be paid later. But for regular filing, always pay SAT first. Our team ensures smooth filing after tax payment.

BSR Code (Basic Statistical Return): 7-digit code of the bank branch receiving tax. CIN (Challan Identification Number): Unique identifier = BSR Code + Challan Date + Serial Number. Important: Keep challan safely - BSR Code and CIN required while filing ITR to claim tax credit. If challan lost, CIN helps get duplicate. Our Dwarka team provides properly documented challans with all details.

Our Dwarka pricing: Tax Calculation: ₹299 (income computation, TDS verification, interest calculation). Complete Payment: ₹499 (calculation + challan + payment + verification). Payment + ITR Filing: ₹999 (all inclusive package). Most affordable rates in Dwarka, Uttam Nagar, Janakpuri area. No hidden charges. Visit our Sector-4 Dwarka office or call +91-8750051664.