Sri Lanka Tax Calendar
Every recurring IRD deadline that matters — APIT, VAT, WHT, SSCL and Income Tax — so you never miss a filing.
Your Next Deadlines
Full Deadline Reference
Monthly
Every month, without fail
APIT Payment15th
WHT / AIT Payment15th
VAT Payment20th
SSCL Payment20th
VAT Return (monthly filers)Last day
Quarterly
30 days after quarter-end
WHT Quarterly Return+30 days
SSCL Quarterly Return20th (+1mo)
VAT Return (quarterly filers)30th (+1mo)
Income Tax Instalments15 Aug/Nov/Feb/May
Annual
Once per year of assessment
Income Tax Final Payment31 August
Income Tax Return Filing30 November
APIT Annual Statement30 April
AIT/WHT Annual Statement30 April
Income Tax Instalments
Estimated quarterly payments
Q1 (Apr–Jun)15 August
Q2 (Jul–Sep)15 November
Q3 (Oct–Dec)15 February
Q4 (Jan–Mar)15 May
How this works: Dates follow the Inland Revenue Department's published Tax Calendar and Inland Revenue Act deadlines for Y/A 2025/26. Deadlines falling on a weekend/public holiday typically roll to the next working day — always confirm the exact date on ird.gov.lk or with us. This is a planning guide, not a substitute for official IRD notices.
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