Learn how to check your TIN number online in Sri Lanka. Simple step-by-step guide to find your Tax Identification Number in 2026.
How to Check Your TIN Number Online in Sri Lanka (2026 Guide)
If you have already registered for a Tax Identification Number (TIN) but cannot remember your number, don't worry. Many Sri Lankans search for ways to find their TIN online.
This guide explains the easiest methods to check your TIN number in Sri Lanka.
What is a TIN Number?
A Tax Identification Number (TIN) is a unique number issued by the Inland Revenue Department (IRD) to identify taxpayers.
You need a TIN for:
- Opening some financial accounts
- Tax filing
- Business registration
- Government services
- Employment-related tax matters
Method 1 – Check Your TIN Using the IRD Portal
- Visit the Inland Revenue Department online portal.
- Log in using your registered email and password.
- Open your profile or taxpayer details.
- Your TIN number will be displayed.
Method 2 – Check Your Registration Email
When you registered for your TIN, IRD usually sent a confirmation email.
Search your email inbox using keywords like:
- TIN
- Inland Revenue
- IRD
- Tax Identification Number
Your TIN may be included in the confirmation message.
Method 3 – Check Previous Tax Documents
If you have submitted:
- Income Tax Returns
- Tax payment receipts
- Tax assessments
Your TIN number will normally appear on these documents.
Method 4 – Contact the Inland Revenue Department
If you cannot access your account, contact the Inland Revenue Department.
Be ready to provide:
- Full Name
- NIC Number
- Date of Birth
- Registered Mobile Number
- Registered Email Address
After verifying your identity, they can help you retrieve your TIN.
Method 5 – Visit the Nearest IRD Office
If online methods don't work:
- Visit your nearest Inland Revenue Department office.
- Carry your original National Identity Card (NIC).
- Request assistance to retrieve your TIN number.
I Forgot My IRD Password
If you cannot log in:
- Click Forgot Password on the IRD portal.
- Enter your registered email.
- Follow the password reset instructions.
- Log in again to view your TIN.
Can I Check My TIN Using My NIC Number?
Not through a public search.
For privacy reasons, your TIN cannot be searched online using only your NIC number. You must log into your IRD account or contact the Inland Revenue Department for verification.
Frequently Asked Questions
Is TIN registration free?
Yes. TIN registration is free of charge.
Can I have more than one TIN?
No. Every individual or business should have only one TIN.
What should I do if I forgot my TIN?
Log into your IRD account, check your registration email, review previous tax documents, or contact the Inland Revenue Department.
Can someone else check my TIN?
No. TIN information is confidential and is only released after identity verification.
Conclusion
Your TIN number is an important identifier for tax and government services in Sri Lanka. If you've forgotten it, the quickest options are to log into the IRD portal, check your registration email, or contact the Inland Revenue Department. Always keep your TIN in a secure place for future use.
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