Political parties recieve an annual administrative grant for every serving MP in their party, with an additional grant for every female MP.
The Solomon Islands Political Parties Integrity Act entitles political parties "to claim one or both of the following grants after their elected MPs have taken their oaths on the floor of Parliament:
(a) a temporary special measures grant of $10,000 payable annually for every women elected to Parliament; and
(b) an administration grant of $20,000 for each Member of Parliament of the political party, payable annually to the political party after submission of its annual financial report under section 61".
Source: Articles 58 (1) (a) and (b), Solomon Islands Political Parties Integrity Act 2014