Tax Calculator

Calculate your APIT Tax

Confused about the new tax regulations? You don’t have to be anymore! Instead, use Simplebook’s Tax Calculator to generate your tax.

Note: This is applicable from January 2023 onwards




Tax on Monthly Income

Use this calculator to figure out how much tax you have to pay on your monthly salary

*This tax will only apply to you if your monthly income from
employment is above Rs 100,000.

What is your monthly income from employment?

Your monthly income is any cash and noncash benefits you earn from your employment. This can include your salary + any benefits.


Here’s how much tax you have to pay on your monthly income from employment

How does the Simplebooks APIT Tax Calculator Work?

1. Select the calculator that applies to you.

Every calculator comes with a ‘use case description’ to help you find the right fit.

2. Answer a few simple questions

Once you find the calculator you’re looking for, all you have to do is answer a few important questions. Your answers will help us understand exactly how much tax you need to pay, so make sure they’re accurate and up-to-date.

3. Find out how much tax you have to pay

With the information you give us, our calculators will tell you exactly how much tax you have to pay. 

How is APIT Tax calculated?

Every year, the Sri Lankan government decides and implements its tax policy throughout the country. The APIT Tax replaced the PAYE Tax.

Read our detailed blog about how APIT taxes are calculated, and about how the Simplebooks Tax Calculator computes your taxes. 

Advance Personal Income Tax (APIT Tax)

The Advanced Personal Income Tax (APIT Tax) replaced the Pay As You Earn Tax (PAYE Tax) in Sri Lanka.

Advance Personal Income Tax is applicable for:

  • Monthly Regular Profit
  • Lump Sum Earnings
  • Cumulative Regular Profits
  • Once And For All Payments
  • Secondary Income