HomeTaxSecond Job Tax Rate - How Much is It?

Second Job Tax Rate – How Much is It?

Considering adding a second job to increase your income? It’s a wise decision that is becoming more common in today’s economy. However, before fully committing to two jobs, it is crucial to be aware of how it could affect your taxes. That’s right – there is a specific tax rate for second jobs that you need to be aware of!

In this blog post, we will unravel the mysteries surrounding the second job tax rate and help you navigate through the complex realm of taxation. So grab a cup of coffee and join us as we break down everything you need to know about how much you’ll owe Uncle Sam when working that extra gig!

What is the Second Job Tax Rate?

What exactly is the second job tax rate, you may ask? Well, when you have multiple sources of income – be it from a full-time job and a side hustle or two part-time jobs – each income stream is subject to its own tax rate. In simple terms, the second job tax rate refers to the percentage of your earnings from your additional employment that will be deducted as taxes.

So why does the government impose different tax rates for second jobs? The reason lies in the progressive nature of our tax system. As your total income increases, you may find yourself moving into higher tax brackets where you’re required to pay a larger portion of your earnings in taxes. This means that if your secondary source of income pushes you into a higher bracket, you’ll be taxed at a higher rate on those specific earnings.

It’s important to note that the second job tax rate varies depending on factors such as how much you earn and which specific tax codes apply to your situation. Understanding these factors can help ensure that you accurately calculate and allocate funds for taxes owed on your secondary employment.

How Much is the Second Job Tax Rate?

second job tax rate

How much is the second job tax rate? It’s a question that many people ask when considering taking on additional employment. The answer depends on several factors, including your overall income and the tax code that applies to your second job.

Tax codes play a crucial role in determining how much tax you will pay on your earnings from a second job. The most common tax code for secondary employment is BR, which stands for basic rate. This means that you will be taxed at the standard income tax rate for this source of income.

However, if you are a high-income earner and expect to exceed the higher-rate threshold, you may have a different tax code applied to your second job earnings. The D0 tax code is tailored specifically for individuals in this situation, ensuring that they pay taxes at a higher rate from their secondary employment.

For those who anticipate earning even more and exceeding both the basic and higher-rate thresholds, the D1 tax code comes into play. This ensures that individuals are subject to taxes at an even higher rate for their additional earnings.

Tax Codes for Second Jobs

When it comes to second jobs, understanding the tax codes that apply is crucial. The right tax code ensures that you’re paying the correct amount of taxes on your additional income. Here are some common tax codes for second jobs:

BR Tax Code: the Standard Rate for Secondary Employment

The BR tax code is the standard rate used for secondary employment. When you have a second job, your primary employer will usually use your tax-free personal allowance against your main income. This means that any income from your second job will be taxed as a second job tax rate at the basic rate of 20% under the BR tax code.

Using the BR tax code simplifies things as it ensures that you are paying an appropriate amount of tax on your second job earnings. However, if you are earning more than £50,270 in total (including both jobs), it might be worth considering whether a different tax code like D0 or D1 would be more beneficial for you.

Calculating how much tax you owe on your second job earnings can be done by applying the correct percentage to your taxable income after deducting any allowances or expenses applicable to each source of income.

Understanding how the BR Tax Code works, as well as other relevant options like D0 or D1 codes, depending on individual circumstances, helps individuals with multiple sources of income manage their tax obligations effectively. Seeking professional guidance and staying informed about tax rules and

D0 Tax Code: Tailored for High-income Earners

If you’re a high-income earner with a second job, the D0 tax code is specifically designed for you. This tax code applies to individuals who have exceeded the basic rate threshold and are earning above a certain income level.

The D0 tax code means that you will be taxed at a higher rate on your secondary employment income. Currently, this stands at 40%, which is significantly more than the standard rate of 20% under the BR tax code.

It’s important to note that the D0 tax code only applies to your earnings from your second job. Your primary employment income will still be subject to the appropriate tax rate based on your overall income and any applicable allowances or deductions.

Calculating how much tax you owe on your second job earnings can be complex, as it depends on factors such as your total taxable income, any additional sources of income, and applicable allowances or reliefs. It’s always best to consult with a professional accountant or seek guidance from HMRC to ensure accurate calculations.

If you’re earning a high income from your second job, it’s essential to understand how the D0 tax code impacts your taxes.

D1 Tax Code: Applicable for Those Exceeding the Higher Rate Threshold

If your earnings from the second job push you into the higher rate tax band, then your secondary employment income will be subject to a higher tax rate. The D1 tax code is used in this scenario and signifies that all income from the second job will be taxed at a higher rate, which is currently set at 45%.

It is worth mentioning that tax codes can be subject to changes by HMRC, and they may vary depending on your specific circumstances. Therefore, it is recommended to consult HMRC’s official guidelines or seek advice from a professional accountant for accurate information on the tax rate applicable to your secondary employment.

Calculating Tax on Your Second Job Earnings

Calculating Tax on Your Second Job Earnings

Calculating tax on your second job earnings in the UK involves considering various factors, including income tax bands and allowances. Here’s a step-by-step guide to help you estimate your tax liability:

  1. Determine your total income: Add up the earnings from your primary job and your second job to get your total income for the tax year.
  2. Subtract your Personal Allowance: Check the current tax year’s Personal Allowance limit. For the tax year 2023/2024, the Personal Allowance is £12,570. Subtract this amount from your total income.
  3. Identify your tax bands: For the tax year 2023/2024, the tax bands and rates in the UK are as follows:
  • Basic Tax Rate: 20% (applies to income above the Personal Allowance up to £50,270)
  • D0 Tax Rate: 40% (applies to income between £50,271 and £125,140)
  • D1 Tax Rate: 45% (applies to income over £125,140)
  1. Allocate your income to each tax band: Determine how much of your income falls within each tax band based on the income thresholds mentioned above.
  2. Apply the tax rates: Multiply the income allocated to each tax band by the corresponding tax rate.
  3. Calculate tax owed: Add up the results from Step 5 to find the total tax owed on your second job earnings.

It’s important to note that this is a simplified calculation and does not consider additional factors like National Insurance contributions, tax code adjustments, or other deductions you may be eligible for. For an accurate calculation, it is advisable to consult HMRC’s guidelines, use tax software, or seek advice from a tax professional to ensure compliance with the current tax regulations in the UK.

Minimising Your Tax Burden With Second Job Strategies

Minimising your tax burden with second job strategies requires careful planning and consideration of applicable tax rules. Here are a few strategies to help you reduce your tax liability:

  1. Utilise tax allowances and reliefs: Take advantage of any tax allowances and reliefs available to you. For example, in the UK, there are various allowances such as personal allowances, marriage allowances, and tax relief on pension contributions. Ensure you claim all relevant allowances and deductions.
  2. Optimise your tax code: Review your tax code with HM Revenue and Customs (HMRC) to ensure it accurately reflects your circumstances. If your tax code is incorrect, you may be paying more taxes than necessary. Make sure your tax code considers factors like multiple employments, allowances, and deductions.

Remember that every individual’s circumstances are unique, so what works for one person might not necessarily work for another. It’s crucial to assess and evaluate different strategies based on factors like total earnings, deductions available, and long-term financial goals. The other strategies to minimise your tax burden are,

Splitting Your Personal Allowance Effectively

Splitting your Personal Allowance effectively can help reduce your tax burden when you have a second job or multiple sources of income. Here are a few strategies to consider:

  1. Marriage Allowance: If you are married or in a civil partnership and one partner earns less than the Personal Allowance threshold, you can transfer a portion of their unused allowance to the other partner. The higher-earning partner can then benefit from a higher tax-free allowance and potentially reduce their tax liability. It’s important to check if you meet the eligibility criteria set by HM Revenue and Customs (HMRC) to claim the Marriage Allowance.
  2. Adjusting tax codes: Ensure that your tax codes accurately reflect your circumstances. If you have more than one job or income source, make sure each employer has the correct information to withhold taxes accordingly. This can help ensure that your Personal Allowance is distributed correctly across your various employments.
  3. Timing and income planning: If you have control over the timing of your income, consider spreading it out across different tax years. By doing so, you can maximise the use of your Personal Allowance in each tax year, potentially reducing your overall tax liability.
  4. Utilising tax-efficient accounts: Make use of tax-efficient savings and investment accounts, such as Individual Savings Accounts (ISAs) or pension contributions. These accounts can help shelter your earnings or investments from tax, allowing you to maximise the benefits of your Personal Allowance.

Remember to stay within the guidelines and regulations established by HMRC when implementing any tax strategies.

Maximising Tax-efficient Savings

Maximising tax-efficient savings can help you reduce your tax liability and effectively grow your money. Here are some strategies to consider:

  1. Individual Savings Accounts (ISAs): ISAs are tax-free savings accounts available in the UK. You can contribute up to a certain limit each year, and any interest, dividends, or capital gains earned within an ISA are tax-free. There are several types of ISAs, including Cash ISAs, Stocks and Shares ISAs, and Innovative Finance ISAs. By utilising ISAs, you can shield your savings and investments from tax while earning potential returns.
  2. Pension contributions: Contributing to a pension scheme is not only a way to save for retirement but also offers tax benefits. In the UK, pension contributions benefit from tax relief, meaning contributions are made pre-tax. You can receive tax relief on contributions up to the annual allowance limit.
  3. Capital Gains Tax (CGT) allowances: If you have investments that generate capital gains, it’s important to be aware of the CGT allowances. For the tax year 2023/2024, each individual has an annual exempt amount of £12,300, meaning you can make gains up to this threshold without incurring CGT.
  4. Utilise tax-efficient investment accounts: Consider investing through tax-efficient investment accounts such as Self-Invested Personal Pensions (SIPPs) or Enterprise Investment Schemes (EIS). These accounts provide additional tax benefits and incentives to encourage investments in certain areas, such as startups or small businesses.

Remember to review the specific regulations and guidelines related to each tax-efficient savings option, as they may change over time.

Impact of National Insurance Contributions on Second Job Earnings

Impact of National Insurance Contributions on Second Job Earnings

In regards to taking on a second job tax rate, it is crucial to have a clear grasp of the impact that National Insurance contributions can have on your income. National Insurance (NI) is a UK system that finances different social security benefits and services, and its amount is determined by your employment earnings.

Understanding National Insurance Contribution Rates

When it comes to second-job earnings, it’s important to understand how National Insurance contributions (NICs) come into play. These contributions are separate from income tax and go towards funding various state benefits like the State Pension and healthcare services.

The NI contribution rates for employees in the UK are as follows:

  • Primary Threshold to Lower Earnings Limit: 12%
  • Lower Earnings Limit to Upper Earnings Limit: 13.8%
  • Above Upper Earnings Limit: 3.8%

The Primary Threshold is the amount you can earn each week before you start paying NI contributions. For the 2023/24 tax year, the Primary Threshold is £242.

The Lower Earnings Limit is the amount you need to earn each week to be eligible to receive NI credits, which count towards your state pension. For the 2023/24 tax year, the Lower Earnings Limit is £123.

The Upper Earnings Limit is the amount above which you start paying higher-rate NI contributions. For the 2023/24 tax year, the Upper Earnings Limit is £50,200.

Remember, always consult with a professional or get guidance directly from HMRC if you’re unsure about any aspect of National Insurance contributions. They can provide personalised advice based on your specific circumstances and help ensure compliance with all relevant regulations.

Calculating National Insurance Contributions for Second Jobs

To determine National Insurance (NI) contributions for second jobs in the UK, you will need to identify the relevant NI rates and then apply them to your earnings from both positions. Here is a detailed breakdown:

To begin, calculate your overall weekly income. Calculate your overall weekly earnings by adding up your pay from both jobs. This encompasses your regular salary, extra pay for overtime, incentives, and all other earnings subject to taxation.

The next step is to determine the relevant NI contribution rates which we mentioned above.

The Primary Threshold is the amount you can earn each week before you start paying NI contributions. For the 2023/24 tax year, the Primary Threshold is £242. Subtract the Primary Threshold from your weekly earnings for that job. This gives you the amount of earnings subject to NI contributions. Multiply the amount of earnings above the Primary Threshold by the applicable NI contribution rate. This gives you the amount of NI contributions you need to pay for that job.

Sum up the NI contributions you calculated for each job to determine your total NI contributions for your second job.

Example Calculation

Suppose you earn £300 per week from your main job and £100 per week from your second job. For your second job:

  • Total Weekly Earnings: £100
  • Primary Threshold: £242
  • Earnings Above Primary Threshold: £100 – £242 = £142
  • Applicable NI Contribution Rate: 12%
  • NI Contributions for Second Job: (£142) * 12% = £17.04

Therefore, your total NI contributions for your second job would be £17.04 per week.

The Implications of National Insurance Contributions on Take-home Pay

National Insurance Contributions (NIC) in the UK can have implications on your take-home pay. Here are the key considerations:

  1. Reduction in Gross Pay: NIC is deducted from your gross pay, which means it reduces the total amount you earn before tax deductions. This reduction directly impacts your take-home pay.
  2. Different Classes of NIC: The class of NIC you contribute will determine the rate at which your earnings are taxed. Class 1 NIC is the most common for employees, and it is split between you and your employer. Class 2 and 4 NIC are applicable to self-employed individuals.
  3. Thresholds and Rates: Different thresholds and rates apply to NIC based on your earnings and employment status. For example, Class 1 NIC has an annual threshold and different rates for different income bands. Higher earners may have a higher NIC rate.
  4. Impact on Pension and Benefits: National Insurance contributions also contribute towards your entitlement to the state pension and certain benefits. Paying NIC helps ensure that you are eligible for these benefits when you reach the required age or meet other criteria.
  5. Effect on Employer Contributions: If you’re an employee, your employer also contributes to your NIC, which can affect the overall cost of employing you. However, this does not impact your take-home pay directly, as the employer’s contribution isn’t part of your earnings.
  6. Second Jobs and Total Earnings: If you have a second job, NIC calculations can differ depending on your total earnings from both jobs. It’s important to consider the combined earnings and their impact on NIC thresholds and rates.
  7. Refunds and Adjustments: In some cases, you may be eligible for a refund or adjustment if you’ve overpaid NIC. This can happen if you’ve made excessive contributions due to multiple employments or changes in employment status. Contact HM Revenue and Customs (HMRC) for guidance on the refund process.

It’s important to review your payslips and understand the NIC deductions to gauge their impact on your take-home pay. If you’re unsure about any specific details or how NIC affects your overall financial situation, consider consulting with HMRC or a tax professional for personalised advice.

Do I Need to Tell HMRC if I Get a Second Job?

Do I Need to Tell HMRC if I Get a Second Job?

Yes, it is generally necessary to inform HM Revenue and Customs (HMRC) if you take on a second job. Here’s why:

  1. Tax Code: When you have multiple employments, your tax code needs to be adjusted accordingly to ensure the correct amount of tax is deducted from your income. Each job will have its own tax code that reflects your total earnings.
  2. Personal Allowance: Your Personal Allowance, which is the amount of income you can earn each year without paying income tax, is typically allocated to your primary employment. If you have a second job, you will need to inform HMRC so they can distribute your Personal Allowance correctly between both jobs.
  3. National Insurance Contributions (NIC): As mentioned earlier, NIC rates and thresholds for second jobs may vary. It is important to notify HMRC about your second employment so they can calculate NIC accurately based on your total earnings.
  4. Tax Liability: Holding multiple jobs can affect your overall tax liability, particularly if you fall into a higher tax band or earn above the threshold for certain allowances or reliefs. By informing HMRC about your second job, they can ensure that your tax liability is calculated correctly and that you meet your tax obligations.

To inform HMRC about your second job, you can contact them directly or update your employment details through your online tax account. It is always advisable to notify HMRC promptly to avoid any potential issues with your tax payments or calculations.


Understanding the second job tax rate is essential for anyone who has taken on additional employment. By knowing how much tax you will need to pay on your second job earnings, you can effectively manage your finances and plan for any potential tax liabilities.

The different tax codes for second jobs, such as BR, D0, and D1, are designed to cater to individuals with varying income levels. It is crucial to determine which tax code applies to you based on your earnings and ensure that the correct amount of tax is deducted from each paycheck.

Being knowledgeable about the second job tax rate will help you stay financially organised and ensure that you fulfil all legal obligations related to taxation. By understanding how much tax needs to be paid on your secondary employment income and implementing smart financial strategies, you can make the most out of having multiple sources of income while remaining compliant with HMRC regulations.


Please enter your comment!
Please enter your name here

Must Read