UK Form MAT B1: Maternity Certificate for Statutory Maternity Pay (SMP) & Maternity Allowance
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JustFill is not affiliated with Department for Work and Pensions (DWP) & NHS, United Kingdom. This is an independent third-party tool to help you complete UK Form MAT B1. Always download the current blank form from the official source and verify your completed copy before signing or submitting. Official UK Form MAT B1 from Department for Work and Pensions (DWP) & NHS, United Kingdom
Form MAT B1 (Maternity Certificate) is the UK medical certificate issued by an NHS doctor or registered midwife no earlier than 20 weeks before the expected week of childbirth (EWC). Pregnant employees give their MAT B1 to their employer to claim Statutory Maternity Pay (SMP), or send it to the Department for Work and Pensions (DWP) with Form MA1 to claim Maternity Allowance. Open a structured MAT B1 worksheet or upload your scanned MAT B1 PDF in JustFill to complete, annotate, and download it in one click.
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Preparing HR maternity leave records or digitising a flat scanned MAT B1 Maternity Certificate for payroll and Statutory Maternity Pay (SMP) compliance? Form MAT B1 confirms the pregnant person’s name, the Expected Date of Confinement (due date) or actual date of birth, and the registered midwife or doctor’s signature, GMC/NMC PIN, and official stamp. Because MAT B1 forms are issued as flat paper certificates or non-interactive scans, JustFill’s vision AI detects every box so HR teams, midwives, and claimants can complete or archive clean PDF copies in the browser.
Official DWP guidance on Form MAT B1 is published on GOV.UK at gov.uk/government/publications/maternity-certificate-mat-b1-guidance-for-health-professionals. Click "Fill the blank UK Form MAT B1 now" above to open a 1-page MAT B1 worksheet in JustFill, or upload a scanned MAT B1 PDF.
What each section of UK Form MAT B1 asks for. JustFill’s AI will detect these fields automatically when you upload the PDF — review the breakdown below so you know what to enter.
Full name of the pregnant patient, National Insurance number (for employer/DWP reference), and date of examination.
Date of examination (must not be more than 20 weeks before the expected week of confinement) and the exact expected date of birth.
Actual date the baby was born and the expected week of confinement, used when the certificate is issued after delivery.
Practitioner name, NMC Personal Identification Number (PIN) or GMC reference number, address/NHS Trust stamp, signature, and date.
A fictional registered NHS midwife in Manchester completes a MAT B1 certificate at a 24-week antenatal appointment for an employee claiming Statutory Maternity Pay from her employer. All names and numbers are fictional.
Patient: SAMPLE, HANNAH CLAIRE · Date of Examination: 20/10/2026
Confirms the examination took place within 20 weeks of the Expected Week of Childbirth.
Expected week of confinement (Sunday): 07/02/2027 · Expected date of birth: 11/02/2027
Establishes the Qualifying Week (15 weeks before EWC) and SMP eligibility window for payroll.
Midwife: SAMPLE, PRIYA R, RM · NMC PIN: 99A0000E · Manchester University NHS Foundation Trust · Signed 20/10/2026
Validates the medical certificate with the midwife’s NMC registration number and date.
These values are made up. They are here to show what belongs on each line, not to be copied — every name, number, and address on your own UK Form MAT B1 has to be your own.
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By uploading, you confirm you have the legal right to use this document.
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Official source: UK Form MAT B1 on Department for Work and Pensions (DWP) & NHS, United Kingdom’s website
Edition checked: DWP MAT B1 Maternity Certificate (20-Week EWC Standard). Verified against the official source on · Verified in our Government Forms Fillability Study.
Contains public sector information licensed under the Open Government Licence v3.0.
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