Siyenro - Sri Lankan Estimated Tax Calculator

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Individual Estimated Tax

Income Information

Monthly Salary (LKR)

Monthly Business Income (LKR)

Monthly Rent Income (LKR)

Monthly Investment Income (LKR)

Monthly Other Income (LKR)

Relief & Deductions

Personal Relief (Max: 1,800,000)

Solar Panel Relief (Max: 600,000)

Approved Charity (Max: 75,000)

Other Government Donations

Rent Relief (25% of Annual Rent Income)

Tax Year: 2026/2027
Method: Progressive Rates
Type: Individual Income Tax

Tax Slabs: 6% up to 1M | 18% 1M-1.5M | 24% 1.5M-2M | 30% 2M-2.5M | 36% Above 2.5M

Corporate Estimated Tax

Company Income

Monthly Company Profit (LKR)

Monthly Investment Income (LKR)

Monthly Other Income (LKR)

Corporate Tax Rate: 30%
No relief deductions available for corporate tax.

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