Tony Abbott "wilfully misled" voters when as Opposition Leader he promised no "nasty surprises" and "pathetic excuses" in government, Labor says.

With the Coalition's one year anniversary in office nearing, Opposition Leader Bill Shorten has renewed his attack on the government's budget by reminding voters of promises Tony Abbott made as opposition leader but has broken as Prime Minister.

Labor have accused Tony Abbott of breaking his promise to be a "no surprises" government. Credit:Alex Ellinghausen

"There will be no surprises and no excuses from a Coalition government," Mr Abbott said exactly one year ago.

Speaking in Canberra, Opposition Leader Bill Shorten revived Mr Abbott's pledge and said it was proof the government's budget was built on deception.