How to File a Tax Return (2024/2025) in Sri Lanka – Step-by-Step Guide

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Last Updated: May 2025

If you’re wondering how to file your income tax return in Sri Lanka for the 2024/2025 year, you’re not alone. Whether you’re a salaried employee, freelancer, or business owner, the process can feel confusing — especially with recent updates from the Inland Revenue Department (IRD).

In this guide, we walk you through the full process, step by step.


✅ Who Needs to File a Tax Return in Sri Lanka?

You must file a tax return if you meet any of the following:

  • Your annual income exceeds Rs. 1,200,000
  • You are self-employed or a freelancer
  • You receive rental, investment, or foreign income
  • You operate a business or company
  • You are a partnership owner or director

📅 When is the Deadline to File?

Tax YearFiling Deadline
2024/202530th November 2025 (usually extended if weekends/holidays apply)

🧾 Documents You’ll Need

Before you start, gather:

  • TIN (Taxpayer Identification Number)
  • Payslips or salary statements (for employees)
  • Business income and expenses (for self-employed)
  • Bank statements
  • Details of rent, interest, or dividends
  • Tax deductions or reliefs claimed

🖥️ How to File Your Tax Return Online (Via e-Services)

The IRD now encourages all taxpayers to use its online portal.

Step 1: Register for e-Services

Step 2: Log in and Choose “File Return”

  • Select the applicable assessment year: 2024/2025
  • Choose the tax type: Income Tax – Individual or Business

Step 3: Fill Out the Online Return Form

  • Report all sources of income: salary, rent, freelance, etc.
  • Input allowable deductions: medical, pension, donations
  • Upload supporting documents (if requested)

Step 4: Submit and Save Acknowledgment

  • Double-check your entries
  • Submit and download the confirmation PDF
  • You can pay your tax due via online bank transfer or card

💡 Tax Calculator for Sri Lanka 2025

To simplify your tax filing, try our free online tool:
👉 Sri Lanka Income Tax Calculator 2024/2025

It automatically calculates:

  • PAYE
  • Taxable income
  • Deductions
  • Final tax payable or refund

🧾 What Happens After Filing?

  • You’ll receive an acknowledgment number
  • The IRD may contact you for clarification or audit
  • If you’re due a refund, you can claim it through the same portal

❓ Frequently Asked Questions (FAQs)

Q: Do employees still need to file returns if tax is deducted (PAYE)?
A: Yes, if your income exceeds the threshold or if you have other income.

Q: What are the penalties for late filing?
A: A penalty of Rs. 50,000 or more may apply for late or non-filing.

Q: Can I file through a tax consultant?
A: Yes. Many individuals use registered accountants for help.


🔚 Final Tips

  • File early to avoid last-minute stress
  • Use our calculator to estimate your tax ahead of time
  • Keep your documents organized for 5 years, in case of IRD audit

If you need personalized help or want us to handle your filing, contact us here.


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