CDD Assessment & Housing Budget Calculator
Turn a supplied annual CDD assessment into a monthly budget equivalent. Compare known housing costs without double counting; no parcel or loan certification.
What This Calculator Does
Use two inputs: a known annual CDD total and an optional known monthly housing base that excludes it. Annual ÷ 12 is a budget equivalent, not a monthly billing schedule. A blank housing base remains unknown; a known 0 is different. Combined cost and the CDD share are available only with a known base. No property price, future assessment or approval is inferred.
Who Is This For
Buyers, owners and real estate professionals budgeting from actual assessment and housing documents. Government pages provide billing context, not a parcel quote; loan and closing requirements remain separate.
How It Works
Enter the known annual total, including an explicit 0 when appropriate. Optionally enter a reconciled monthly housing base excluding this same CDD, including any amount already in tax escrow. Leave unknown housing blank. Confirm the scope and read all three results and their unknown/undefined states. Examples are closed by default and do not fill or confirm facts automatically. The three unrounded method rows are presentations of the same calculation, not extra bills.
Frequently Asked Questions
Which CDD amount should I enter?
Use the supplied annual total for the relevant parcel, counted once. If that total already includes debt service and operations/maintenance, do not add those components again. For an annual assessment of US$2,400, the monthly budget equivalent is US$200. The calculator does not retrieve the amount or prove that a parcel owes it.
Does annual CDD divided by 12 mean twelve monthly bills?
No. It is a budget equivalent only. Actual collection may appear on a property-tax bill; verify the relevant documents. There is no payment schedule, 30-year total, bond payoff date or future-fee forecast. Ending a debt-service portion does not establish that continuing operating charges will become zero.
How do unknown housing, a known zero and a zero denominator differ?
Blank housing means unknown, so combined monthly and share stay unknown—not 0. With annual CDD US$1,200 and a known non-CDD base 0, combined is US$100 and the share 100%. With both inputs 0, combined is 0 but share is undefined because it would be 0/0. Annual 0 with base US$3,000 gives combined US$3,000 and share 0%; a supplied 0 does not certify no parcel obligation.
What does the CDD percentage measure?
It is the CDD budget equivalent divided by the combined entered monthly housing budget, times 100. With annual CDD US$2,400 and non-CDD housing US$3,000, monthly CDD is US$200, combined US$3,200 and share 6.25%. It is not a percentage of property price, a property-tax rate or an affordability/loan verdict. The base includes only the housing components you actually supply.
What if the tax or escrow estimate already includes this CDD?
When inclusion and amount are known, reconcile the CDD monthly equivalent out of the housing base before adding it once. If US$3,200 already includes US$200 CDD from annual US$2,400, enter US$3,000: combined remains US$3,200, not US$3,400. Check actual escrow/bill documents; the calculator does not detect inclusion. If the non-CDD base is unknown, leave it blank instead of inventing a certified total.
How are fractional cents and tiny shares handled?
Inputs preserve cents, but annual ÷ 12 can contain fractional cents. Annual US$0.01 gives a positive monthly equivalent of US$1/1200, not zero. Any positive cash below US$0.01 or share below 0.0001% remains visibly positive. Other cash rounds to nearest cents and shares to four decimals, exact halfway values upward. The share uses unrounded amounts. Rounded monthly cents multiplied by 12 do not establish the exact annual bill.
What input ranges and conditions apply?
Annual CDD is required and explicitly known from 0 to US$2 billion, with at most two decimals. Optional housing is either unknown or a known amount in the same range, excluding this CDD; explicit 0 is not missing. Negative, malformed, nonfinite or over-limit facts are rejected, not converted to 0. These are software limits, not district tariffs or lender rules; a derived combined amount is not clipped to the input limit.
What do the government sources establish?
Miami-Dade Property Appraiser and Florida Department of Revenue pages were read October 3, 2026 for non-ad-valorem billing context: CDD charges may appear on property-tax bills and are not property-value percentages. The saved September 30 arithmetic baseline is separate, not a historical tariff. No Miami-Dade, Broward or Palm Beach parcel amount, escrow treatment, future charge or eligibility is certified. No universal seller-disclosure duty is asserted; ask the relevant closing/legal professional.