The deadlines that catch founders out are the recurring ones: Delaware's flat $300 LLC franchise tax due 1 June, Wyoming's annual report due the first day of your anniversary month, Florida's annual report due 1 May with a $400 late penalty, and Form 5472 for foreign-owned LLCs due 15 April. UK companies file a Companies House confirmation statement annually plus separate HMRC deadlines. Use this tool to download a calendar file, export a checklist, save it locally and set your own reminders.
Choose what you formed and your formation date to generate your deadlines and a calendar file you can import into Google, Apple or Outlook.
Why a calendar beats good intentions
The most expensive founder mistakes are administrative, not strategic: a $25,000 Form 5472 penalty, a doubled Companies House late-filing fee, or a state that will not let you dissolve until years of back fees are paid. A dated calendar with advance alerts removes the single biggest cause - forgetting.
This tool covers recurring headline deadlines plus practical operating reminders such as registered-agent renewal and company-record review. Your exact obligations can include additional federal, state, sales-tax or VAT filings, so treat the result as a backbone to confirm with a qualified professional, not a complete list.