P45 Request Letter (UK)

A P45 Request Letter in the United Kingdom records an employment particular or request and the information the parties need to action it, and takes its legal force from the Employment Rights Act 1996.

The legal obligation to issue a P45 arises automatically when employment ends in England, Wales, Scotland, and Northern Ireland. Regulation 36 of the Income Tax (PAYE) Regulations 2003 requires employers to complete and hand to the employee Parts 1A, 2, and 3 of the P45 on or before the day employment ceases, or as soon as reasonably practicable thereafter. Part 1 is submitted by the employer to HMRC through the Real Time Information (RTI) system, introduced under the Finance Act 2012 and governed by Schedule 55 to the Finance Act 2009, which requires employers to report payroll information to HMRC on or before each payday. Failure to comply with RTI obligations attracts penalties under Schedule 55 to the Finance Act 2009, administered by HMRC's PAYE compliance team.

The Advisory, Conciliation and Arbitration Service (ACAS) recommends that employees first make a written request before escalating a P45 dispute to HMRC or the Employment Tribunal. Under the Employment Rights Act 1996, an employer who fails to provide required payroll documentation may face proceedings before the Employment Tribunal. Section 18A of the Employment Tribunals Act 1996 requires employees to notify ACAS and undergo early conciliation before bringing most Employment Tribunal claims — a written P45 request creates a documented paper trail that supports this process and demonstrates compliance with the pre-action steps expected by the tribunal. HMRC administers the PAYE system under the Income Tax (Earnings and Pensions) Act 2003 (ITEPA 2003) and can take enforcement action against employers who persistently fail to meet their PAYE obligations under section 8 of the Social Security Contributions (Transfer of Functions) Act 1999. The UK GDPR and the Data Protection Act 2018 require employers to handle leavers' personal data lawfully, including ensuring that tax records are provided accurately and promptly to the data subject. Where an employer wilfully withholds the P45 as use in a wages dispute, the employee may also bring a claim for unlawful deduction from wages under Part II of the Employment Rights Act 1996 before the Employment Tribunal, with a limitation period of three months less one day from the date of the deduction. The forms-legal.com P45 Request Letter template provides a professionally worded demand citing regulation 36 of the Income Tax (PAYE) Regulations 2003 and suitable for immediate use in England, Wales, Scotland, and Northern Ireland.

A P45 Request Letter is needed in the United Kingdom whenever a former employer has failed to provide the P45 within a reasonable time after employment ends. The most common situations where this letter is required are set out below.

Starting a new job is the most frequent trigger. A new employer needs Parts 2 and 3 of the P45 to input the correct cumulative tax code into the PAYE system under the Income Tax (PAYE) Regulations 2003 and avoid placing the employee on an emergency tax code such as 1257L W1/M1. Without the P45, the new employer must use HMRC's starter checklist, which may result in the employee paying more income tax than is due until the tax record is corrected through the PAYE reconciliation process administered by HM Revenue and Customs.

Claiming a tax refund is another common reason. If employment ended part-way through the tax year and no new job followed immediately, the employee may have overpaid income tax. HMRC requires the P45 to process an in-year repayment claim under the Income Tax (Earnings and Pensions) Act 2003. Without the document, HMRC cannot confirm the total pay and tax figures for the tax year to date and the refund claim will be delayed.

Claiming Universal Credit or Jobseeker's Allowance administered by the Department for Work and Pensions (DWP) may require evidence of income and tax status, for which the P45 is the standard document. The DWP and HMRC share data under the Digital Economy Act 2017, but presenting the P45 speeds up benefit processing and reduces overpayment risks.

If the employment ended in acrimonious circumstances — such as a dispute over wages, notice pay under section 86 of the Employment Rights Act 1996, or statutory redundancy pay under Part XI of the same Act — employers sometimes withhold the P45 as use. Sending a formal P45 Request Letter citing regulation 36 of the Income Tax (PAYE) Regulations 2003 makes clear that withholding the P45 is unlawful and that HMRC enforcement action may follow. The letter should be sent promptly after the end of employment, setting a deadline of seven to fourteen days for a response, and should be sent by recorded post or email to create a delivery record for any subsequent Employment Tribunal or ACAS early conciliation proceedings.

A well-drafted P45 Request Letter for use in the United Kingdom should include the following key elements to be effective and to create a complete paper trail for any subsequent HMRC or Employment Tribunal proceedings.

The former employee's identifying details must be stated clearly: full legal name as it appears on payroll records, National Insurance (NI) number, date of birth, and last known home address. The NI number is the primary identifier used by HM Revenue and Customs (HMRC) to match the P45 to the correct PAYE tax record under the Income Tax (Earnings and Pensions) Act 2003 (ITEPA 2003). Without the NI number, the employer's payroll department may struggle to locate the correct record quickly.

The employment details section states the employer's full legal name and trading address, the employee's job title or payroll reference number, the start date of employment, and the last working day. These details cross-reference with the employer's Real Time Information (RTI) submissions to HMRC under the Finance Act 2012, making it straightforward for the payroll department to locate the correct record in their PAYE software.

The statutory basis clause cites regulation 36 of the Income Tax (PAYE) Regulations 2003 (SI 2003/2682) explicitly. Naming the specific regulation puts the employer on clear legal notice that the obligation is statutory, not merely a matter of courtesy, and signals that HMRC enforcement is a genuine option if the employer fails to comply.

The response deadline clause specifies a reasonable deadline — seven to fourteen working days is standard practice. The letter should state the escalation steps if the employer fails to comply: notification to HMRC's employer helpline, referral to the Advisory, Conciliation and Arbitration Service (ACAS) for early conciliation under section 18A of the Employment Tribunals Act 1996, or a complaint to the Employment Tribunal. Including these escalation steps clearly in the letter almost always produces prompt compliance.

The delivery confirmation clause requires the letter to be sent by recorded delivery, signed-for post, or email with read receipt so that proof of receipt is available. If the employer is registered at Companies House, a copy should be sent to the company's registered office address as well as to the payroll or HR department. Where the employer operates through an umbrella company or professional employer organisation, the letter should be addressed to the entity that operated the PAYE scheme, identifiable from the PAYE reference number on the employee's payslips.

The data subject rights clause may also be included where appropriate. Under UK GDPR Article 15 and the Data Protection Act 2018, the former employee has the right to access personal data held about them, including pay and tax records. A subject access request to HMRC under the Freedom of Information Act 2000 or the Data Protection Act 2018 can provide supporting evidence if the employer disputes the figures on the P45.

Where the employer is insolvent, the insolvency reference clause should note that the Redundancy Payments Service administered by the Insolvency Service may be able to assist with recovering unpaid wages, notice pay, and other statutory entitlements under Part XII of the Employment Rights Act 1996. HMRC's Real Time Information database can also reconstruct pay and tax figures from RTI submissions made during the tax year if the employer has ceased trading. The forms-legal.com P45 Request Letter (UK) template incorporates all of these elements and is available as a PDF or Word document for immediate use across England, Wales, Scotland, and Northern Ireland.