It's not easy to give a definite answer to your question.
The court first has to consider 'culpability', as defined on page 6 of my link below.
The next step is to establish an initial category rating for 'harm', based upon the amont involved. (For £1500 it's the very lowest category, 'Category 5'. See 'Harm A' on page 7).
Then it has to be decided whether a higher category should actally be applied to the case, based upon 'Harm B', also on page 7.
Then the table on page 8 is used.
Assuming that the offence is seen as only 'Category 5' (with no reason to move it to a higher category, based upon the 'Harm B' criteria) and that 'culpability' isn't seen as being at the very highest level, then a community order (involving unpaid work) might well be the evental outcome.
https://www.sentencingcouncil.org.uk/wp-content/uploads/Fraud-bribery-and-money-laundering-offences-Definitive-guideline2.pdf