MPs will be required to make repayments to IPSA in circumstances including, but not limited to, the following::
they have been paid an amount (or have had an amount paid by IPSA on their behalf) that IPSA subsequently determines should not have been paid
they have overspent their budget in a particular category of spending
they have agreed to repay an amount following an investigation by the Compliance Officer, or
they have been directed by the Compliance Officer to repay an amount. [2.11]
Making repayments to IPSA
In any of the circumstances described, if MPs do not make the repayments within 30 days, IPSA will arrange for the amount to be deducted from further payments of claims to which the MPs are entitled.
MPs may request for the amount to be deducted from their salaries instead of being deducted from the payment of further claims. [2.12]
You may request for the amount to be deducted from your salary instead of being deducted from the payment of further claims. [2.13]
In exceptional circumstances, if any amounts due for repayment have not been recovered by IPSA within 30 days of MPs being notified, the remaining amounts may be deducted from MPs’ salaries without their agreement. [2.14]
Download the IPSA Repayment Form.