Pro Rated Rent Calculation

Pro-Rated Rent Calculator

31 Days (Jan, Mar, May, Jul, Aug, Oct, Dec) 30 Days (Apr, Jun, Sep, Nov) 28 Days (February) 29 Days (Leap Year February)

(Include the move-in day in your count)

Calculation Result:

function calculateProratedRent() { var rent = parseFloat(document.getElementById('monthlyRent').value); var totalDays = parseFloat(document.getElementById('daysInMonth').value); var occupiedDays = parseFloat(document.getElementById('daysOccupied').value); var resultContainer = document.getElementById('rentResultDisplay'); var rentLabel = document.getElementById('rentValueLabel'); var dailyLabel = document.getElementById('dailyRateLabel'); if (isNaN(rent) || isNaN(occupiedDays) || rent <= 0 || occupiedDays totalDays) { alert("Days occupied cannot exceed the total days in the month."); return; } var dailyRate = rent / totalDays; var finalProratedAmount = dailyRate * occupiedDays; rentLabel.innerHTML = "$" + finalProratedAmount.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); dailyLabel.innerHTML = "Daily Rate: $" + dailyRate.toFixed(2) + " per day"; resultContainer.style.display = "block"; }

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Pro-rated rent is a method used by landlords and property managers to calculate the partial rent amount owed when a tenant occupies a property for only a portion of a billing cycle. This typically occurs when a tenant moves in after the first of the month or moves out before the last day of the month.

How the Pro-Rated Rent Formula Works

While there are several ways to calculate pro-rating (such as using a flat 30-day month or the "banker's year" of 360 days), the most common and fair method is based on the actual number of days in the specific month. The formula used by our calculator follows these steps:

1. Determine the Daily Rate: Divide the total monthly rent by the number of days in the current month.
2. Count Occupied Days: Calculate exactly how many days the tenant will be living in the unit (counting the move-in day as day one).
3. Calculate Final Total: Multiply the daily rate by the number of occupied days.

Real-World Example

Suppose you are moving into a new apartment on October 15th. The monthly rent is $1,200. Since October has 31 days, the calculation would look like this:

• Daily Rate: $1,200 ÷ 31 days = $38.71 per day.
• Days Occupied: From Oct 15 to Oct 31 is 17 days.
• Pro-rated Rent: $38.71 × 17 days = $658.07.

Important Tips for Tenants and Landlords

Check Your Lease: Some lease agreements specify exactly how pro-rated rent should be calculated. Some landlords use a standard 30-day month regardless of the actual calendar month to keep billing consistent.

Move-In vs. Move-Out: Usually, the day you receive the keys is considered your first day of occupancy, even if you don't physically move your furniture in until later. Similarly, on move-out, you are usually responsible for rent until the day you officially hand over the keys and vacate the premises.

Leap Years: If you are calculating rent for February, remember to check if it is a leap year (29 days) or a standard year (28 days), as this significantly impacts the daily rate.