The European Parliament collects and publishes information on the expenditure associated with each MEP, but many MEPs consider this level of scrutiny to be insufficient. So Labour, and indeed all mainstream UK parties, all go beyond what is required by Parliament, though UKIP MEPs have so far refused to do this.
As with all Labour MEPs, I’ll regularly publish a breakdown of allowances paid by Parliament on my behalf, and any expenses I incur in course of my work which have been refunded by Parliament. All UK Labour MEPs are also required to carry out a full, professional annual audit of the use of their Allowances. The audit will show that proper accounting records have been kept; that the financial statements are in accordance with the accounting records; that financial statements comply with statutory or other requirements.