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Informanagement UK Informanagement UK
  • Home
  • About us
    • Meet the team
    • Testimonials
    • Events
  • Our system
  • Our services
    • Monthly client email newsletter
    • Weekly practitioner email newsletter
    • Quarterly client printed newsletter
    • Personalised newsfeed
    • Social media for accountants
    • Branded website
    • File & sign
    • InforLearning
    • InforMailer
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    • App
    • Connections / Automated profiling
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Jan 08

Starting or changing jobs

  • 8 January 2026

Providing the right information when you start a new job helps ensure your tax code is correct from the first pay day and avoids the risk of paying too much tax.

When starting a new job or taking on additional employment, your new employer will usually send your income details to HMRC, which are used to calculate your tax code. If this information is not provided in time, or you choose not to share it, you may be placed on a temporary emergency tax code.

To avoid this, you should provide your new employer with your P45. If you do not have a P45 or do not wish to supply it to your new employer then you should complete HMRC’s starter checklist.

You can check your employment details via HMRC’s online services or mobile app, ensuring only one employer is using the standard 1257L tax code and that your estimated income is accurate. This should be available to view within 6 weeks after your first pay day.

If your records are incorrect or incomplete, you can update your employer details, add or remove employers and amend your estimated income or benefit information directly with HMRC. These updates can help prevent underpayment or overpayment of tax.

These changes may or may not affect your tax code. If the changes result in a change, HMRC will notify your employer.

Source: HM Revenue & Customs | 05-01-2026
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