How to Work Out Salary After Tax (A Simple Guide)

How to Work Out Salary After Tax (A Simple Guide)
Alan Bermingham

Alan Bermingham

10 Years of Expertise in Fintech Innovation

5 min read

Updated: 27 Jan 2025

5 min read

Updated: 27 Jan 2025

Ok , Lets Dive In Together Shall We?

Ever looked at your payslip and wondered how much of your salary you actually get to keep?

Figuring out your salary after tax might seem tricky, but it doesn’t have to be.

With the right knowledge about tax bands, allowances, and deductions, you can easily calculate your take home pay. Whether you’re just starting a new job or planning your budget, knowing how your pay is calculated is a game changer!

Let's get into it with our simple guide.

Understanding Your Salary Breakdown

Getting to grips with your salary breakdown is the secret to managing your finances like a pro.

It’s all about understanding how much you're really bringing home versus the numbers in your contract. So, let’s break it down:

  • Gross Salary: This is the big number, the total amount your employer agrees to pay you before anything gets taken out. It’s what’s listed in your job contract. Think of it as the “before tax” figure.

  • Gross Income: Basically, gross salary and gross income are the same thing. It’s your full earnings before any deductions like income tax or National Insurance. This number is super important when you’re figuring out how much tax you’ll owe.

  • Net Salary: Here’s the magic number! Your net salary, or take home pay, is the amount you get after all the deductions have been taken out like income tax, National Insurance, pension contributions, or any student loan repayments. It’s the money you actually get to use, and let’s be honest, it’s the number that matters most.

By knowing the ins and outs of these figures, you can get a clearer picture of your finances and make smarter decisions about savings and spending. Better still, use our Pie Tax app to make it a total breeze!

Start with Your Gross Salary

Before you can figure out your take home pay, you need to know your gross salary.

This is the total amount your employer pays you before any deductions, including taxes and other contributions. It includes your basic salary, any bonuses, and overtime.

The key difference between gross salary and net salary is that gross is the full amount, while net is what lands in your bank account after deductions.

Think of it like this: gross salary is the whole cake, while net salary is the slice you actually get to eat! 

lady on laptop

Subtract Your Tax-Free Allowances

Now, let’s reduce your income by taking off tax-free allowances.

The most common one is the personal allowance, which is £12,570 for the 2023-2024 tax year. This amount isn’t taxed, so it immediately lowers the portion of your salary subject to tax.

You only need to pay income tax on earnings above this threshold, and different sources of income, including self-employment, are considered when determining your total earnings and tax obligations.

Other allowances may apply depending on your circumstances. For example, if you qualify for the blind person’s allowance, you get an extra amount added to your personal allowance.

Income from ISAs or certain benefits is also tax-free, so make sure you don’t include these in your calculations!

Apply Income Tax Bands

Once you’ve subtracted allowances, the remaining amount is your taxable income, and this is where tax bands come into play. The UK has a progressive tax system, so different parts of your income are taxed at different rates:

  • 20% for basic rate taxpayers (up to £50,270).

  • 40% for higher rate taxpayers (above £50,270).

  • 45% for additional rate taxpayers (over £125,140).

Only the portion of your income in each band is taxed at that rate. For example, if your taxable income is £60,000, you’ll pay 20% on the first £37,700 (after your allowance) and 40% on the next £9,730.

Factor in National Insurance Contributions (NICs)

Don’t forget about National Insurance Contributions (NICs), which are separate from income tax. If you’re employed, you’ll pay:

  • 12% on earnings between £12,570 and £50,270.

  • 2% on earnings above £50,270.

If you’re self-employed, you’ll pay Class 2 NICs (a flat rate) and Class 4 NICs, which are a percentage of your profits.

NICs fund things like the state pension, so they’re important, even if they reduce your pay a bit.

Deduct Pension Contributions and Other Deductions

Next, take off deductions like pension contributions. If you’re enrolled in a workplace pension, these contributions come out of your gross salary and can reduce your taxable income.

Other deductions might include student loan repayments if your salary is above the repayment threshold or salary sacrifice schemes like childcare vouchers.

These can lower your taxable income and save you money in the long run!

Understand Tax Code Adjustments

Your tax code plays a big role in how much tax is taken from your salary.

A typical code like 1257L reflects the standard personal allowance, but your code might be adjusted if you receive benefits like a company car or need to repay underpaid tax from previous years.

Always double check your tax code on your payslip. If it’s wrong, you could be paying too much (or too little) tax!

woman on laptop

Use a Salary Calculator for Accuracy

Finally, the easiest way to figure out your take home pay is to use a salary calculator.

Online tools like HMRC’s tax calculator are handy, but the Pie Tax app takes it a step further by tracking deductions and showing you exactly what’s left after taxes, NICs, and other contributions.

Using a calculator ensures you get accurate results without doing all the math yourself. It’s a lifesaver if you want to double check your payslip or plan for a pay rise!

How to Check Your Payslip and Spot Errors

Keeping an eye on your payslip is key to ensuring you’re paid correctly.

Start with the basics: check your gross pay (total earnings before deductions) and net pay (what you take home). Make sure your tax code reflects your correct personal allowance, as this can affect how much tax you pay.

Mistakes happen more often than you’d think. Look out for errors like miscalculated overtime, incorrect bonus payments, or unexpected deductions. An incorrect tax code can mean you’re overpaying, so double check it matches your situation.

If something doesn’t look right, contact your HR or payroll department to resolve it. GOV.UK also has lots of advice to help when calculating your tax.

Catching errors early ensures you keep what you’ve earned!

Final Thoughts

Working out your salary after tax doesn’t have to be a guessing game!

By understanding your gross salary, allowances, tax bands, and deductions, you can easily calculate how much you’ll actually take home.

If you’re looking for a quick and accurate way to do the math, try using the Pie Tax app. It’s designed to make managing your finances simple and stress free.

Start calculating today and take control of your earnings!

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