For many years, we at Good Jobs First have criticized GASB—the Governmental Accounting Standards Board, or “GAZ-bee”— for failing to require state and local governments to disclose economic development subsidy spending in a uniform way.

It appears that’s finally about to change, and if it does, it will be hard to overstate the significance of the news.

As the group that has been successfully shaming states and cities to disclose on subsidies all these years, with our 50-state and 50-locality “report card” studies, and as the group that has been collecting all the public data—and also lots of previously unpublished data—in our Subsidy Tracker database, we are intimately familiar with the irregularities and gaps that exist in these vital public records. And we have long shown how to fix them in our model legislation.

First, a quick primer on GASB: it is the public-sector counterpart to the Financial Accounting Standards Board, or FASB, which issues private-sector accounting rules. Each body oversees its respective set of rules, which are constantly under review and improvement, known as Generally Accepted Accounting Principles, or GAAP.

Adhering to GASB, cities, counties, states (and other government bodies such as school boards and sewer districts) must account for their finances in conformity to GAAP if they want to receive ratings from the major credit ratings agencies (Moody’s, Standard & Poors, Fitch), which they must earn if they wish to sell bonds.

The same is true for corporations of all kinds if they wish to satisfy shareholders, sell debt, or even get foundation grants. Indeed, Good Jobs First’s auditors have to certify us as GAAP compliant in our annual financial statement. All of which is to say: the influence of GASB and FASB is enormous and ubiquitous; they are the arbiters of sound United States bookkeeping standards that protect investors, taxpayers, and consumers every day. (Both are part of the non-profit Financial Accounting Foundation.)

Now, GASB is preparing rules that say: to meet GAAP, governments will have to publish an annual accounting of the revenue lost to economic development subsidies. The proposed wording of these rules has not been issued; all we have are board-meeting minutes of a low-profile process spanning more than two years, as GASB gathers information and debates how best to achieve this new standard.

GASB is using the term “tax abatement” as an umbrella term (not just specific to local property tax exemptions) but “a reduction in taxes… in which (a) one or more governmental entities forgo tax revenues that [an individual] taxpayer otherwise would have been obligated to pay and (b) the taxpayer promises to take a specific action that contributes to economic development or otherwise benefits the government(s) or its citizens.” This would appear to also cover state corporate income tax credits and state or local sales tax exemptions, but apparently not tax increment financing.

As part of that process, GASB even commissioned a survey that included citizens groups, county board members and bond analysts. Tellingly, the bond analysts said they are most keen to see both current and future-year costs. For cities like Memphis, where we recently found that Payments in Lieu of Taxes (or PILOTs) cost the city almost one-seventh of its property tax revenue, such losses are apparently becoming bigger concerns for bond investors.

GASB will have a three-month comment period on its proposed rules starting next month (November).

For all the cost-benefit debates featuring inflated ripple-effect claims that beg the more fundamental issue of cause and effect, we have always said: the only thing that can be said for sure is that development subsidies are very expensive, so costly that they undermine funding for public goods that benefit all employers. Therefore, at the very least, taxpayers have the right to know the exact price of every deal and every program (and the outcome of every company-specific deal). GASB now appears to be moving to make some form of standardized disclosure of tax-break costs a reality for reporting periods after December 15, 2015 (and sooner on a voluntary basis).

Some important details remain to be clarified. Based on the board minutes, it appears that GASB will propose giving governments the option of disclosing individual deals or only programs costs in the aggregate (the latter option would be far inferior). We’ll know for sure when the draft standards are published sometime this month. Good Jobs First will publish a detailed analysis of the draft when it comes out.

But for now, the big picture is simply huge: the body that effectively controls how taxpayer dollars are accounted for is finally catching up to the Wild West of record-keeping known as economic development incentives.