The party discovered five seperate expenses, worth over €2,000, which relate to press events during the 2016 general election.
Sinn Féin says there's a big difference between their party and the Public Expenditure Minister's failure to declare election expenses.
The Standards in Public Office Commission is investigating a complaint made against the party in its election spending.
Sinn Féin also discovered five seperate expenses, worth over €2,000, that weren't declared to SIPO.
They relate to press events during the 2016 general election.
Laois Offaly TD Brian Stanley says they fixed their errors as soon as they became aware of them:
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