Open enrollment for health insurance bought on the Affordable Care Act marketplace starts Nov. 1 in most states — but millions of people may get a financial surprise when they try to sign up.

That's because a congressional deadlock tied to the extension of enhanced subsidies for insurance premiums has continued with no end in sight.

Consumers are "going to get huge sticker shock, because prices are going up," said Carolyn McClanahan, a physician and certified financial planner based in Jacksonville, Florida.

That sticker shock could have significant ramifications for consumers' finances and the choices they make about health coverage, experts say, contributing to a higher population of uninsured and underinsured consumers and soaring premiums in years to come.

While the percentag

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