This is real and exists in the USA …since 1990, called PAYGO…and it is totally irresponsible that something similar has not existed here.
“The PAYGO compels new spending or tax changes not to add to the federal deficit. Not to be confused with pay-as-you-go financing, which is when a government saves up money to fund a specific project. Under the PAYGO rules a new proposal must either be “budget neutral” or offset with savings derived from existing funds.[1] The goal of this is to require those in control of the budget to engage in the diligence of prioritizing expenses and exercising fiscal restraint.”
It obviously hasnt worked in the USA. Their annual deficit is now over $1 trillion. That is $1,000,000,000,000. That is every year their national debt is growing by that amount.
We already have it in Ireland. Its called the Fiscal Compact. We voted for it. And not only does it require budget measures to be deficit neutral. It actually requires us to run a budget SURPLUS every year until the national debt is below 60% of GDP.