Charlotte County’s Septic Conversion Tab: $20 Million Surprise, Two Decades of Bills

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When a project you thought would ease your property’s infrastructure needs turns into a financial anchor around your neck, you start to understand why Port Charlotte homeowners are sounding the alarm.

The Ackerman Municipal Services Benefit Unit sewer expansion—a septic-to-sewer conversion that seemed like a straightforward public works upgrade—has ballooned into something far more ominous for residents. Retired veteran Jeffrey Sherwin and his wife, Teresa Sherwin, are among those watching their wallets shrink over what’s becoming an endless cycle of payments. Sherwin has paid $575 annually for five years already. The kicker? He won’t be connected until hopefully late 2027, and he’ll keep forking over that $575—possibly for 20 years total.

Here’s where it gets worse: Charlotte County officials quietly adjusted the project’s budget in May 2026 to $70.6 million, up nearly $20 million from the $51.6 million estimate from just seven months prior. Yes, the county landed $8.2 million in grants to help cushion the blow, but that’s a fraction of what residents will ultimately carry. COVID-19 and inflation are being cited as the culprits behind delays and cost overruns—legitimate factors, certainly—but legitimate doesn’t pay the bills for homeowners already squeezed by rising property insurance, flood insurance, and car insurance costs.

The county frames this through the lens of a Municipal Service Benefit Unit (MSBU), a financing tool common across Florida. The logic is sound in theory: those who benefit from the infrastructure pay for it. In practice, though, residents are caught in a limbo where they’re paying assessments on a service that hasn’t been delivered yet, with no clear end date and no certainty about final costs. For older residents on fixed incomes, Sherwin notes, it’s become the breaking point—some are already selling their homes rather than betting their retirement on an uncertain timeline.

The county says no one has been quoted a 40-year assessment, and that a revised timeline is forthcoming. That’s the least homeowners need at this point: transparency. Real numbers. A finish line they can actually see. The suspense of not knowing if you’re committing to 20 years of payments or 30 is its own kind of cruel, especially when you’re already watching every dollar.