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Let's work out your tax together

We'll guide you through every field. You'll see exactly where to find each number, how things are calculated, and your tax updating in real-time.

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~15 minutes
Most people finish in under 15 min
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All calculations happen in your browser
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Free calculation
See your full tax breakdown for free
About You
Basic details so we know which tax rules apply
Enter a valid NIC (12 digits or 9 digits + V/X)
Tax scope: Worldwide income
What income do you have?
Tap all that apply — we'll only show those sections
Most people only pick 1–2 of these. Don't worry — you can always change this later.
Employment
Business / Freelance
Bank Interest / FD
Dividends
Rental
Foreign Income (USD)
Capital Gains
T-Bonds / T-Bills
Employment Income
Salary, allowances, and benefits from your employer
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Where to find these numbers
Check your last payslip (Year-to-Date section) or ask HR for your annual APIT certificate.
Payslip: Look for "Gross Salary YTD" or multiply your monthly gross by 12.
APIT Certificate: Your employer must issue this by April each year. It shows total salary, allowances, and APIT deducted.
EPF Statement: Download from epf.lk — shows your 8% employee contribution for cross-checking.
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Primary Employer
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If you have monthly salary, multiply by 12
Allowances — leave blank if already included in salary above
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Non-cash benefits — from your employer
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Tax already deducted by your employer
Your employer already deducted some tax (APIT) from your salary during the year. Enter that amount here — it will be credited back to reduce your final tax bill.
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How we calculate employment income
Gross salary Rs. 0
+ Allowances Rs. 0
+ Non-cash benefits Rs. 0
Total employment income Rs. 0
Have a second job?
Click to add second employer details
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Business / Freelance Income
Revenue from your business, consultancy, or freelance work
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Where to find these numbers
Your profit & loss statement, business bank statements, and WHT certificates from corporate clients.
Revenue: Total from invoices issued during Apr 2025 – Mar 2026.
Expenses: Subcontractors, rent, utilities, software, equipment depreciation.
WHT Certificates: Corporate clients deduct 5% when paying you. They issue a certificate — collect these!
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Allowable deductions
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How we calculate business income
Gross revenue Rs. 0
− Allowable deductions Rs. 0
Net business income Rs. 0
Bank Interest & Fixed Deposits
Interest from savings accounts, FDs, and similar deposits
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Where to find these numbers
Request an annual interest certificate from each bank. It shows gross interest and AIT deducted.
Gross Interest: The full interest BEFORE the bank deducted 10% AIT. Banks sometimes show "net" — if so, divide by 0.9 to get gross.
AIT (10%): The bank automatically withholds this. It's your tax credit — it reduces your final bill.
Important: Include ALL accounts across ALL banks (savings, FD, corporate deposits).
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Total gross interest Rs. 0
Treasury Bonds & Bills
Government securities interest and discounts
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Where to find these numbers
Check your LankaSecure / CBSL statement or broker account for interest and WHT details.
T-Bonds: Fixed interest paid semi-annually. WHT is 10% or 14% depending on your status.
T-Bills: Sold at a discount. The difference between face value and purchase price is your income.
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Dividend Income
Dividends from listed (CSE) and unlisted companies
Good news! Listed (CSE) company dividends with WHT are generally tax-free — the WHT is final tax. Only unlisted company dividends get added to your taxable income.
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Where to find these numbers
Check dividend vouchers from each company and your CDS statement from CSE.
Each dividend payment comes with a voucher showing gross amount and WHT deducted. Your CDS (Central Depository System) annual statement lists all dividend payments.
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Rental Income
Income from properties you rent out
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Where to find these numbers
Your rental agreements and bank deposits showing rent received. If corporate tenant, collect WHT certificates.
Deduction methods:
• Statutory 25%: Simpler — no receipts needed. Taxable = 75% of gross rent.
• Actual expenses: Better if costs exceed 25%. Taxable = rent minus real expenses.
You can choose a different method for each property.
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Foreign Services Income (USD)
Income from services to overseas clients
Foreign services income is taxed at a flat 15% — separate from normal slabs. If you paid tax overseas, you get a credit for it.
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Where to find these numbers
Your invoices to foreign clients, Payoneer/Wise statements, and bank inward remittance receipts.
Exchange rate: Use the CBSL average rate for the year. Check cbsl.gov.lk.
Expenses: Costs directly related to earning this income (software, tools, etc).
Foreign tax: If your client's country deducted tax, you can claim a credit (lower of foreign tax or SL tax).
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How foreign services tax works
Net income (LKR) Rs. 0
× 15% flat rate Rs. 0
− Foreign tax credit Rs. 0
Net foreign tax Rs. 0
Capital Gains
Profits from selling shares or property — taxed at flat 10%
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Where to find these numbers
Broker contract notes for share sales, sale agreements and valuations for property.
Shares: Gain = Sale Proceeds − Purchase Cost − Broker Fees.
Property: Gain = Sale Price − Purchase Price − Improvements − Legal Fees.
Share losses can offset share gains (same year). Property losses cannot offset share gains.
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Sale proceeds − purchase cost − broker fees
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Sale − acquisition − improvements − legal
Capital gains tax (10%) Rs. 0

No additional income sources selected.

Go back to Step 1 to add more income types if needed.

Tax Reliefs & Deductions
These reduce your taxable income — less taxable = less tax
Everyone gets Rs. 1,800,000 personal relief automatically — that's the first Rs. 150,000/month tax-free. We've already applied this for you below.
How reliefs reduce your tax
Your assessable income Rs. 0
− Personal relief Rs. 1,800,000
− Donations Rs. 0
− Qualifying payments Rs. 0
Taxable income (goes to slabs) Rs. 0
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Maximum allowable: calculating...
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Review Everything
Double-check your numbers before we calculate your tax
Almost done! Review the summary below. Click "Back" to fix anything.
Income Summary
Reliefs & Credits

Tax Slab Breakdown
How your taxable income flows through each slab
Sri Lanka uses progressive tax slabs. Your first Rs. 1M is taxed at just 6%. Each slab above is taxed at a higher rate. The bars below show exactly how much falls in each slab.
Full Calculation
Tax Credits Applied
Taxes you already paid during the year — reducing your final amount
✨ Ready to file?
Let us file this for you
We'll auto-fill the IRD portal, generate evidence documents, and run a final pre-submit check. You just click submit.
Auto-fill IRD forms
Evidence documents
Pre-submit review
Email support
Rs. 4,999
One-time payment • This tax year only
Important note
This is an estimate based on published Sri Lankan tax rates for Y/A 2025/2026. It is not a substitute for professional tax advice. Consult a qualified tax practitioner before filing. Filing deadline: November 30, 2026.
Your Document Checklist
Based on the income you entered, here's what you'll need to file
Collect these documents before filing. Tick off items as you gather them.
100% local — nothing sent to servers IRD 2025/26 rates
LankanTax · Tax year April 2025 – March 2026 · Filing deadline Nov 30, 2026
This tool provides estimates only. Consult a qualified tax practitioner before filing.
Live Tax Estimate
Updates as you type
Estimated Tax
Rs. 0
Assessable income Rs. 0
Reliefs Rs. 0
Taxable income Rs. 0
Slab tax Rs. 0
Total gross tax Rs. 0
Tax credits Rs. 0
Net payable Rs. 0
Effective rate 0.0%
All calculations use IRD Y/A 2025/26 rates.
Filing deadline: Nov 30, 2026
Estimated tax
Rs. 0