"Parliamentary allowances" refers to the money allocated or provided to members of parliament to cover their expenses, such as salaries, office costs, travel expenses, and other necessary items related to their parliamentary duties. Full definition
The committee concluded it was «at the least, an improper use of parliamentary allowances: at worst, it was a serious diversion of public funds». (politics.co.uk)
The former is properly a matter for support from Parliamentary allowances; the latter, not. (conservativehome.blogs.com)
The Guardian: «The husband - and - wife Tory backbenchers were last year found to have breached House of Commons rules after claiming # 80,000 in parliamentary allowances for a flat owned by a trust their children control. (conservativehome.blogs.com)