The former Europe minister said he wanted to take "responsibility for my mistakes" after the Standards and Privileges Committee recommended he be suspended without pay and pension for a year - the longest suspension of an MP in living memory.
I have been overwhelmed by messages of support for my work as an MP on a range of issues but I accept that my parliamentary career is over.
I appreciate the committee's ruling that I made no personal gain and I regret my foolishness in the manner I chose to be reimbursed for work including working as the Prime Minister's personal envoy in Europe.
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Former Chancellor Lord Geoffrey Howe was Margaret Thatcher's longest-serving Cabinet minister, also taking on the role of Foreign Secretary.
Lord Geoffrey Howe is known by many for his resignation speech which was seen as the catalyst which destroyed Margaret Thatcher.