Section 45 of the National Parliament Electoral Provisions Act [Cap 87] governs electoral expenses of candidates. It states:
(1) Each candidate shall submit to the Returning Officer within one month of the declaration of the result of the election a statement of account, specifying all expenses incurred by him in his election campaign.
(2) If any expenses referred to in subsection (1) amount, in the case of any individual candidate to more than seven thousand dollars, that candidate shall be guilty of an offense and liable to a fine not exceeding one hundred dollars or to imprisonment for a term not exceeding three months, or to both such fine and such imprisonment.
The expenditure limit was lifted in the National Parliament Electoral Provisions (Amendment) Act 1997 to SI$50,000 (US$7,076) for any one candidate.
Source: Global Integity Report 2012 Solomom Islands