Local Property Tax Return
If you file this [Capital Gains Tax] return on time, but at the date of filing, you have failed to submit your Local Property Tax (LPT) return or
have failed to either pay the LPT due or enter into an agreed payment arrangement, a surcharge should be added to
the final liability. Therefore, the amount payable in your Self-Assessment should be increased by 10%.
Where the LPT is subsequently brought up to date, the amount of the surcharge will be capped at the amount of the
LPT liability involved.