DUP MP Ian Paisley is to begin his 30-day suspension from the House of Commons today.
The North Antrim MP was suspended after he failed to declare two free luxury family holidays to Sri Lanka.
Mr Paisley has also been suspended from the DUP pending the outcome of a further investigation.
His suspension from the Commons begins as Parliament returns from his summer recess.
In March 2014, Mr Paisley lobbied against a proposed United Nations resolution to investigate alleged human rights abuses during a civil war in Sri Lanka.
However, he did so without declaring his holidays to the Indian Ocean island, which were paid for by the Sri Lankan government.
A recall petition has been opened in his constituency - the first of its kind in UK parliamentary history.
If 10 per cent of constituents – 7,543 people – sign the petition then Mr Paisley must resign ahead of a by-election.
Today is the last day for North Antrim constituents to apply for a postal application to sign the petition.
Mr Paisley has said he will fight any possible election but rejected suggestions he should quit his seat.
- Ian Paisley says his conduct is not a resigning matter
- Event in support of Ian Paisley was 'not a DUP meeting' says organiser
- Ian Paisley is suspended from Parliament for 30 days over free Sri Lanka trips