APIT Tax Deduction Explained Sri Lanka 2026

Last Updated: September 2026 | Based on IRD APIT Table 01 & Guidelines and Inland Revenue Act No. 24 of 2017.

What is APIT?

APITAdvance Personal Income Tax — income tax withheld on employment income stands for Advance Personal Income Tax. It's the tax your employer deducts from your salary each month and sends to the Inland Revenue Department (IRDInland Revenue Department — Sri Lanka's tax authority), computed from the official IRDInland Revenue Department — Sri Lanka's tax authority APITAdvance Personal Income Tax — income tax withheld on employment income Table 01 for the year.

→ Check your own numbers: Income Tax Calculator

Think of it as "pay as you earn" – instead of paying one large tax bill at year-end, small amounts are taken from each paycheck throughout the year.

APIT vs Old PAYE System

APITAdvance Personal Income Tax — income tax withheld on employment income replaced the older PAYEPay As You Earn — income tax withheld from salary at source (Pay As You Earn) system to provide more accurate monthly deductions.

How Your Employer Calculates APIT

Your employer applies IRDInland Revenue Department — Sri Lanka's tax authority APITAdvance Personal Income Tax — income tax withheld on employment income Table 01 — a monthly withholding table that has the Rs. 150,000/month relief built into its rows. Employment profits are not reduced by EPFEmployees' Provident Fund — mandatory retirement savings fund for private-sector workers before the table is applied (EPFEmployees' Provident Fund — mandatory retirement savings fund for private-sector workers is a payroll deduction, not a tax deduction). The step-by-step below is the annual-equivalent view of what the table produces.

Step-by-Step Calculation

Step 1: Estimate Annual Income

Your employer takes your current monthly salary and projects it for the full year.

Example: Rs. 200,000/month × 12 = Rs. 2,400,000/year

Step 2: Subtract Personal Relief

The first Rs. 1,800,000 is tax-free (for 2025/2026). The APITAdvance Personal Income Tax — income tax withheld on employment income table builds this in as the Rs. 150,000/month zero-rate band.

Rs. 2,400,000 - Rs. 1,800,000 = Rs. 600,000 taxable

Step 3: Apply Schedule-5 Qualifying Payments (If Submitted)

If you've submitted Form T10 with qualifying payments:

• Approved charity donations: capped at the lower of the donation, Rs. 75,000, or ⅓ of taxable income
• Other Schedule-5 items per the IRDInland Revenue Department — Sri Lanka's tax authority return guide

(Life/health insurance and housing-loan interest are not deductions under the Y/A 2025/26 structure.)

Step 4: Calculate Annual Tax

Apply the tax brackets to your taxable income:

Step 5: Divide by 12

Rs. 36,000 ÷ 12 = Rs. 3,000/month — matches the APITAdvance Personal Income Tax — income tax withheld on employment income Table 01 row for a Rs. 200,000 monthly salary (Rs. 50,000 above the 150k band @ 6%).

Understanding Your Payslip

Every month, your payslip should clearly show tax deductions. Here's what to look for:

Sample Payslip Breakdown

┌─────────────────────────────────────────┐
│           MONTHLY PAYSLIP               │
│          December 2025                  │
├─────────────────────────────────────────┤
│ EARNINGS                                │
│   Basic Salary         Rs. 180,000      │
│   Allowances           Rs.  20,000      │
│   ─────────────────────────────────     │
│   GROSS SALARY         Rs. 200,000      │
├─────────────────────────────────────────┤
│ DEDUCTIONS                              │
│   EPF (8%)             Rs.  16,000      │
│   APIT                 Rs.   3,000      │
│   ─────────────────────────────────     │
│   TOTAL DEDUCTIONS     Rs.  19,000      │
├─────────────────────────────────────────┤
│ NET SALARY             Rs. 181,000      │
└─────────────────────────────────────────┘

Key Components Explained

When APIT Changes

Your monthly APITAdvance Personal Income Tax — income tax withheld on employment income deduction may change throughout the year. Here's why:

Salary Increase

If you get a raise, your employer recalculates APITAdvance Personal Income Tax — income tax withheld on employment income based on the new projected annual income.

Example: Mid-year raise

• January-June: Rs. 150,000/month → Low APITAdvance Personal Income Tax — income tax withheld on employment income
• July onwards: Rs. 200,000/month → Higher APITAdvance Personal Income Tax — income tax withheld on employment income

The employer may also "catch up" on under-deducted months.

Bonus Payments

Bonuses are taxed at your marginal rate. Your employer:

1. Adds the bonus to your annual projection
2. Calculates total annual tax including bonus
3. Deducts the extra tax in the bonus month

Result: Your take-home from a bonus may be lower than expected.

Submitting Form T10

When you submit qualifying-payment claims to your employer, they reduce your APITAdvance Personal Income Tax — income tax withheld on employment income going forward where the tables allow.

For someone earning Rs. 250,000/month:

Before Form T10: Rs. 8,000/month APITAdvance Personal Income Tax — income tax withheld on employment income After claiming approved charity QPs: lower monthly APITAdvance Personal Income Tax — income tax withheld on employment income — the employer applies the Schedule-5 caps (lower of the donation, Rs. 75,000, or ⅓ of taxable income)

Changing Jobs: Critical Steps

Job changes are where APITAdvance Personal Income Tax — income tax withheld on employment income problems often occur. Follow these steps:

When Leaving Your Old Job

1. Request APITAdvance Personal Income Tax — income tax withheld on employment income Certificate (Form T2)
2. Collect your EPFEmployees' Provident Fund — mandatory retirement savings fund for private-sector workers Statement
3. Get final payslip showing YTD deductions
4. Ensure all benefits are settled

When Starting New Job

1. Submit APITAdvance Personal Income Tax — income tax withheld on employment income Certificate from previous employer
2. Inform HR of any qualifying payments
3. Review first payslip carefully
4. Submit Form T10 if you have deductions

What Happens Without the Certificate?

Pro Tip: Always get your APITAdvance Personal Income Tax — income tax withheld on employment income certificate before your last day. It's harder to get later.

Multiple Jobs or Income Sources

If you have more than one job simultaneously:

The Problem

• Each employer calculates APITAdvance Personal Income Tax — income tax withheld on employment income independently
• Neither knows about your other income
• Both apply the full Rs. 1,800,000 tax-free threshold
• You end up under-taxed

Example: Two Jobs

Solution

1. Inform one employer about additional income
2. Or file a tax return and pay the difference
3. Consider quarterly installments if amount is large

Verifying Your APIT is Correct

Use this checklist to verify your deductions:

Monthly Check

• Compare APITAdvance Personal Income Tax — income tax withheld on employment income to expected amount
• Ensure EPFEmployees' Provident Fund — mandatory retirement savings fund for private-sector workers (8%) is calculated correctly
• Verify gross salary matches contract
• Check allowances are included

Annual Check

• Total APITAdvance Personal Income Tax — income tax withheld on employment income for year matches expected tax
• All bonuses were taxed appropriately
• Deductions were applied (if Form T10 submitted)
• EPFEmployees' Provident Fund — mandatory retirement savings fund for private-sector workers contributions match 8% of total earnings

Use Our Calculator

→ Income Tax Calculator

Enter your monthly salary to see:

• Expected annual tax
• Monthly APITAdvance Personal Income Tax — income tax withheld on employment income amount
• Comparison with your actual deductions

Form T10: Claiming Deductions

Form T10 is how you tell your employer about qualifying payments so they reduce your APITAdvance Personal Income Tax — income tax withheld on employment income.

What to Include

When to Submit

• Start of year: For maximum benefit
• Any time: Better late than never
• After new policy: When you take new insurance

Download Form T10

Available from IRD Website

Common APIT Problems & Solutions

Problem 1: "My APIT seems too high"

Possible causes:

• Employer hasn't received your Form T10
• Bonus month causing spike
• Previous employer's income being counted

Solution: Talk to HR, submit/resubmit Form T10, request calculation breakdown

Problem 2: "My colleague earns the same but pays less"

Possible causes:

• They claimed qualifying payments you didn't (charity, solar, rent relief)
• They submitted Form T10 and you haven't
• Different start date in the year

Solution: Review your own deduction opportunities

Problem 3: "APIT deducted but I earn under Rs. 150,000"

Possible causes:

• Allowances push annual income over Rs. 1.8M
• Expected bonus included in calculation
• Calculation error

Solution: Request detailed calculation from HR

Problem 4: "No APIT deducted but I earn over threshold"

Possible causes:

• New employee, calculation hasn't started
• Employer payroll error
• Misclassification of income

Solution: Alert HR immediately to avoid large year-end bill

Self-Employed? APIT Doesn't Apply

If you're self-employed, freelance, or run a business:

Quarterly Installment Dates

Key Takeaways

✅ APITAdvance Personal Income Tax — income tax withheld on employment income is tax deducted monthly by your employer
✅ Based on projected annual income and tax brackets
✅ Always get APITAdvance Personal Income Tax — income tax withheld on employment income certificate when changing jobs
✅ Submit Form T10 to claim deductions and reduce APITAdvance Personal Income Tax — income tax withheld on employment income
✅ Multiple jobs = you must reconcile and may owe extra
✅ Verify your payslip monthly for accuracy

Verify Your APIT Now

Use our free calculator to check if your employer is deducting the correct amount:

→ Income Tax Calculator

Related Guides

• Complete Income Tax Guide 2025/2026
• Tax Deductions You Can Claim
• EPF & ETF Tax Benefits
• Expat & Remote Worker Tax Guide

Official Resources

• IRDInland Revenue Department — Sri Lanka's tax authority Tax Forms: ird.gov.lk/Forms
• APITAdvance Personal Income Tax — income tax withheld on employment income Table 01 & Withholding Guidelines: IRD Publications
• Tax Helpline: 1944
• IRDInland Revenue Department — Sri Lanka's tax authority e-Services Portal: ird.gov.lk

Read: Related Guides

This article is part of our comprehensive Tax Education Hub:

Disclaimer

This guide is for educational purposes. APITAdvance Personal Income Tax — income tax withheld on employment income calculations depend on individual circumstances and employer policies. For specific advice, contact your HR department or a qualified tax professional.

Last Updated: September 28, 2026

Sources:

• Inland Revenue Act No. 24 of 2017
• IRD APIT Guidelines
• IRD Employer's Guide