How to Get a P45 from Previous Employer?

Have you recently left a job and are still waiting for your P45? Do you know exactly what information this document contains, why it is so important, and what to do if it doesn’t arrive? For anyone working in the UK, the P45 is a vital piece of paperwork issued when employment ends.

Without it, your tax code may be wrong, your new employer may place you on emergency tax, and you might face delays in benefit claims or pension adjustments.

Although employers are legally obliged to provide it, delays, errors, and misunderstandings still occur. This guide answers the most common questions about P45s, covering what’s included, how long it is valid for, how to request one from a previous employer, and the steps to take if you lose it or never receive it at all.

What Information Does a P45 Contain?

A P45 is an official tax document in the UK that your employer must issue when your employment ends. It is standardised, meaning every P45 includes the same categories of information regardless of where you worked.

The form will detail the start and end dates of your employment, your employer’s PAYE reference, and your tax code. It will also confirm your total earnings and tax paid during the employment period, as well as student loan repayment details if they apply to you. This information allows HMRC and your next employer to ensure you are placed on the correct tax code and avoid unnecessary overpayments.

It is not just for employment purposes; your P45 can be needed when applying for certain benefits, proving income to a mortgage lender, or providing your pension provider with accurate tax details for withdrawals.

How Long Is a P45 Valid For?

Technically, a P45 is valid until the end of the tax year in which it was issued. However, many financial and employment advisers recommend that you keep your P45 for at least 22 months after the end of that tax year.

While you may no longer need it for tax purposes after that point, retaining it can still be beneficial. For example, it may be required to resolve a dispute over past earnings or tax payments, or to confirm your National Insurance number if no other documents are available. It is generally a good practice to keep such documents in a secure place for future reference.

How Can You Get a P45 from a Previous Employer?

In most cases, you do not need to request a P45, it should be issued automatically when your employment ends. Employers process this through their payroll systems and either hand it to you on your final day or send it electronically or by post shortly afterwards.

If your P45 does not arrive within a reasonable time frame, generally within a week or two, it is best to contact your employer’s HR or payroll department directly.

Put your request in writing, including your name, National Insurance number, and your final date of employment. Keeping a written record of these communications is important, as it can be used as evidence if you need to escalate the matter.

Employers are legally obliged to provide your P45, and if they fail to do so, you can contact HMRC for assistance. In some cases, HMRC may investigate the employer for non-compliance, which could result in penalties.

Most businesses process this through their payroll service, ensuring accurate tax records and compliance with HMRC rules

Do You Get a P45 If You Have Been Sacked or Made Redundant?

Yes, you are entitled to a P45 regardless of the circumstances under which you leave a job. Whether you resigned, were dismissed, or were made redundant, your employer must still provide the form. The information it contains will be the same in all cases, showing your employment dates, pay to date, tax paid, and other relevant details.

Retaining your P45 after dismissal or redundancy is particularly important if you plan to claim benefits or start new employment quickly. Without it, your new employer may need to place you on an emergency tax code until your correct details are confirmed.

Do You Receive a P45 When You Retire?

Retirement is treated the same as any other end of employment, so you should receive a P45 from your final employer. In addition to its standard uses, your P45 will be useful to your pension provider in determining your correct tax code for withdrawals. This helps to ensure that you do not pay more tax on your pension income than necessary.

How Long Does It Take to Receive a P45?

Ideally, a P45 is given to the employee on their last day of work. However, in practice, this is not always possible. If you leave during a holiday period, or if your employer uses an external payroll provider, it may take a few extra days.

If it is expected to take longer, your employer should inform you of the reason for the delay and provide an estimated delivery date.

What Should You Do If Your P45 Contains Errors?

Mistakes can happen, from incorrect personal details to a wrong National Insurance number or tax code. If any information is incorrect, your first point of contact should be your employer’s payroll team. They are responsible for correcting errors on P45 forms.

For issues related to your tax code, HMRC should be contacted directly. They can verify your current circumstances and issue an updated tax code to your new employer if needed. Prompt action is important to prevent any disruption in your tax deductions.

How Can You Get a Replacement P45?

If your P45 is lost, you should first check whether your former employer can issue another copy. Many employers who use digital payroll systems can resend the electronic version, or you may be able to download it from an employee self-service portal.

However, if the P45 was issued some time ago, particularly in paper format and it is unlikely a duplicate can be provided. Employers are restricted from amending or duplicating P45 forms due to the sensitive information they contain. Even so, it is worth contacting them to confirm whether an electronic record exists.

What Happens If Your Employer Cannot Provide a P45?

If your employer cannot issue the form, there is no official replacement that can be created by HMRC or anyone else. In these situations, if you are starting new employment, you can use a Starter Checklist. This form, completed with your new employer, captures the essential details required to place you on the correct tax code as quickly as possible.

What Is a P46 and How Does It Relate to the Starter Checklist?

The P46 was the old form used when an employee started work without a P45. This has now been replaced by the Starter Checklist. While the name has changed, the purpose remains the same and it collects the necessary information about your employment history, student loan repayments, and personal details so your employer can operate PAYE correctly from the start.

What Happens If You Start a Job Without a P45?

You can still start working without a P45, but you must complete the Starter Checklist. In the short term, you might be placed on an emergency tax code, which may result in slightly higher deductions. However, once HMRC receives your accurate income details, your tax code will be corrected, and any overpaid tax will be refunded.

Conclusion: How to Get a P45 Quickly and Avoid Problems?

The process of obtaining a P45 should be straightforward, but delays and mistakes can happen. Always expect your P45 at the end of your employment, and contact your employer immediately if it does not arrive.

Keep it safe for at least 22 months after the tax year ends, as it can be useful for resolving tax or income queries later. If you start a new job without it, ensure you complete a Starter Checklist to avoid long-term tax issues.

Ensuring smooth payroll service and keeping your auto enrolment pension details updated will also help you avoid future issues.

Frequently Asked Questions

Can I work without a P45?

Yes, but you must complete a Starter Checklist to ensure correct tax deductions.

Will I get a P45 if I am self-employed?

No, P45s only apply to PAYE employment.

Can HMRC give me a P45?

No, but they can provide your tax details directly to your new employer.

Do I need a P45 to claim benefits?

Yes, as it helps confirm your previous earnings and tax paid.

Can an employer be fined for not issuing a P45?

Yes, HMRC can investigate and take action against employers who fail to meet their obligations.

Is my P45 still valid after the tax year ends?

It is valid for that tax year but worth keeping for future reference.

Can I request multiple copies of my P45?

No, but your employer may be able to provide an electronic reissue if they retain the record.