An OnSlab corporation must declare MaxedOut status when the combined turnover of its subsidiaries, majority owned partners, shell companies, ghost entities and non-trading residual income vehicles exceeds the total corporate SlabWide tax burden for more than three consecutive cycles.
The benefits to the corporation is that its tax bill is reduced to just 1% of turnover which saves a lot of time and money for everyone. The benefit to Slab is that the corporation's flagship product must thereafter be made available SlabWide, free of charge (at point of delivery as well as for service & support).
The effect of being MaxedOut is to virtually guarantee permanent star status to the corporation which bestows major corporate kudos to the executives in charge and is therefore a much sought after accolade. The first company to declare themselves MaxedOut, EnerCell held a ten day party that was so wild and excessive that more than half of the executive, over 130 members of upper management and almost a thousand employee/shareholders succumbed to permanent stim induced ecsto-stasis - it was that good.
Once a corporation achieves MaxedOut status, it cannot be reversed (mainly because it generates too many arguments).