The Government's Charter for Budget Responsibility has passed the Commons 320 to 258, majority 62, following days of bitter rows in Labour's ranks over whether to oppose the plan.
A total of 20 Labour MPs abstained from the vote.
A total of 20 Labour MPs rebelled against the party whip and abstained from the fiscal charter vote.
Abstainers included former shadow Chancellor Chris Leslie, Blairite and leadership candidate who lost out to Jeremy Corbyn, Liz Kendall.
Former shadow Culture minister Margaret Hodge and former shadow Education Secretary Tristram Hunt also abstained.
The full list of Labour MPs that abstained are:
Some Corbynistas may be cross that 20 Labour MPs abstained in the fiscal charter vote, but is it really worth the abuse and party disunity?
MPs are set to vote on the Conservative's economic plan which caused clashes within Labour after a u-turn by the shadow Chancellor.
It comes after shadow chancellor John McDonnell made a surprise U-turn on the Tory budget vote which is due later today.