Colorado’s health-insurance exchange was supposed to be self-supporting when its federal startup funds dry up at the end of 2015. Alas, exchange officials now say they won’t have enough money to pay all their costs quite that quickly.

Last month, they announced that they would need extra financial support from all of us to keep this ground-breaking initiative running until 2017, when officials believe they will earn enough from health-insurance premium sales to cover their costs.

To bridge the gap, exchange officials plan to temporarily reinstate a fee that was formerly used to support Colorado’s high-risk health insurance pool, a program that helped guarantee that our sickest citizens, whom insurance companies refused to insure, could buy health coverage. That fee ended last year when the Affordable Care Act became law, because the ACA doesn’t allow insurance companies to reject sick patients anymore. Everyone gets health insurance these days. And that’s a good thing.

But given all the promises that were made about the ACA — that it would create a bigger market for health insurance, that it would introduce more competition and that our health-insurance costs would go down as result — it’s disappointing at best that costs seem to keep going up despite all the changes.

This proposal to reinstate a broad market fee is just another example of yet another increase in costs, and we think it should be rejected. When the fledgling exchange had plenty of federal cash to play with, it spent freely on everything from legal fees, to salaries, to advertising. Now, it’s time for the exchange to tighten its belt as we are all learning to do and find a better way to pay for its operations, rather than taxing Coloradans.