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Initial Teacher Training 2018/19 - HESA unique student identifier

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Initial Teacher Training 2018/19

Fields required from institutions in England

HESA unique student identifier

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Short nameHUSID

This field records the student identifier which is to be unique to each student. It is intended that the identifier is to be transferred with the student to each provider of higher education he or she may attend. The objective is that the use of this number will facilitate the accurate tracking of students throughout their experience within the sector for which HESA collects data.

Applicable toEngland

All students.


This field is identical to the Student.HUSID field in the Student record.

This field should be completed with the same value as used for the student in the HESA Student record to allow cross checking.

Students included on a previous year's return must retain the previously used HUSID.

Students entering a course of study should be asked whether they have a previous HESA unique student identifier, and if so this identifier should be used. This will commonly be the situation for new postgraduates moving on from undergraduate study. If students are unable to recall their student identifier, the HUSID look-up service should be used to determine any previously allocated HUSID.

Students whose details have previously been returned to HESA by the reporting provider MUST keep the same unique student identifier in future returns. For students whose details have previously been returned to HESA by another provider, the same unique student identifier should be used if this is known. This is to facilitate the possibility of backward tracking within previous data sets. Where the previous number is not known, or there is any doubt about its accuracy, providers are NOT expected to seek student identifiers from previous providers but should use the HUSID look-up service.

For direct entrants, once a number has been allocated it should never be re-used, even in the case of students who leave the provider without completing their studies.

Students who move from one provider to another should keep their original student identifier. Where the previous HE student identifier is in direct entry format, the number must NOT be changed to reflect the current provider's identifier. This is to ensure that the student identifier remains unique and to allow tracking of the student through the use of the same unique student identifier.

The structure of the HESA student identifier is created as follows:

First 2 digits:Year of entry into provider (last 2 digits of year)
Next 4 digits:HESA provider identifier + 1000
Next 6 digits:6 digit reference number internally allocated by provider.
Last digit:Check digit.

Although this record utilises the Provider.UKPRN as an provider identifier, providers should continue to use the HESA identifier code for this calculation since the structure of the new identifier is not compatible with this algorithm.

Calculation of Check Digit

The check digit is calculated using the first 12 digits and provides a means of detecting errors of transcription. To calculate the check digit, each of the first 12 digits is multiplied by a weight which depends on its position in the number, and the resulting products added. The check digit is then obtained by subtracting the final digit of the resulting sum from ten.

If the final digit of the sum of the products is 0, the check digit would be the final digit after the subtraction i.e. 10 - 0 = 10, check digit is 0.

The weights used are :

Position 1 2 3 4 5 6 7 8 9 10 11 12
Weight 1 3 7 9 1 3 7 9 1 3 7 9

For example, in October 2007 a student enters Leeds Metropolitan University is allocated the internal number 123456. The check digit calculation for the student's reference number, 071064123456, would be calculated as :

Number0 7 1 0 6 4 1 2 3 4 5 6
Weight 1 3 7 9 1 3 7 9 1 3 7 9
Product 0 21 7 0 6 12 7 18 3 12 35 54

The sum of the products is 175, the final digit being 5, so the check digit is 10 - 5, or 5. The full identifier is therefore 0710641234565.


An entrant to Leeds Beckett University in 2007 might have a HUSID of 0710641234565

A student who entered through UCAS in 1997 might have a HUSID of 0000971234561

Quality rules
Quality rules relating to this field are displayed here.
Part of
Field length13
Minimum occurrences1
Maximum occurrences1
Schema components
Element: HUSID
Data type: HUSIDType

Contact Liaison by email or on +44 (0)1242 388 531.