Politicians heading to Canberra from Western Australia and the Northern Territory can no longer charge taxpayers for overnight stopovers unless they prove no connecting flight is available.
Previously, taxpayers would cover a hotel stay for those travelling across the country if they were "required to break a journey".
But changes to travel rules, which came into effect this week, mean MPs can only claim if they certify the break was "caused by there being no same-day connecting flight reasonably available".
Liberal MP Don Randall came under fire for having claimed more than $5000 in 2012 for a trip to Melbourne, where he and his wife attended a West Coast Eagles AFL game.
The WA politician said the reason for the trip was "sittings of parliament".
He later said it was within entitlements because West Australian politicians were allowed to break up their trips to and from Canberra.
The independent remuneration tribunal made the new determination on Monday and it came into effect from Wednesday.
The rules also have been tightened for family members travelling with politicians.
They'll now only get taxpayer funding for their travel if they spend less than a day at the location without the MP.
Anyone arriving more than 24 hours before the politician or leaving more than 24 hours after them won't get a travel allowance.
Politicians representing the largest electorates will get an extra $32,000 a year to spend on charter transport under the changes.