💷 Tax Calculator UK (2021/22) 💷

This package give you an income tax breakdown based on a yearly salary.

Installation

You can install the package via npm or yarn.

npm install tax-calculator-uk

yarn add tax-calculator-uk

Setup

You will need to import the package into your project and create an options object with the following options.

import TaxCalculator from "tax-calculator-uk"

const options = {
	age: 26,
	studentLoanPlan: 1,
	blind: false,
	pensionPercentage: 5
}

const incomeTax = TaxCalculator(60000, options)

Options

age - Number

This options reprents the age of the person you are calculating the income tax form.

studentLoanPlan - Number

This option represents the student loan plan of the person you are calculating the income tax for.

0 - No plan
1 - Plan 1
2 - Plan 2

Plan 1

• English and Welsh students who started before 1 September 2012
• all Scottish and Northern Irish students
• You pay back 9% of your income over the minimum amount of £19,895.

Plan 2

• Plan 2 is for English and Welsh students who started on or after 1 September 2012.
• You pay back 9% of your income over the minimum amount of £27,295.

No plan

• No repayments will be made as you have no student loan

blind - Boolean

This options represents whether or not the person is blind. Extra tax allowances are allocated for blind individuals.

pensionPercentage - Number

This option represents the percentage of their yearly salary the person is paying into a pension.

getTaxBreakdown

Returns a full breakdown of net income and tax deductions

import TaxCalculator from "tax-calculator-uk"

const incomeTax = incomeTax.getTaxBreakdown()

console.log(incomeTax)

Returns

{
	"netIncome": {
		"yearly": 38108.03,
		"monthly": 3175.67,
		"weekly": 732.85,
		"daily": 104.41
	},
	"personalAllowance": 12500,
	"paye": {
		"rate_0": {
			"tax": 0,
			"carry": 45125
		},
		"rate_20": {
			"tax": 7500,
			"carry": 7625
		},
		"rate_40": {
			"tax": 3050,
			"carry": 0
		},
		"rate_45": {
			"tax": 0,
			"carry": 0
		}
	},
	"nationalInsurance": {
		"rate_0": {
			"tax": 0
		},
		"rate_12": {
			"tax": 4862.88
		},
		"rate_2": {
			"tax": 199.52
		}
	},
	"studentLoan": {
		"plan": "PLAN_1",
		"threshold": 17775,
		"rate": 0.09,
		"repayment": 3800.25
	}
}

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🚧 The figures are only used a rough estimation, happy to accept forks to improve accuracy of figures. 🚧