Rental Tool

Prorate Rent Calculator - Calculate Prorated Rent for Partial Months

Free prorate rent calculator & prorated rent calculator for move-in, move-out, and partial month stays. Calculate daily rent rate, prorated amounts, and refunds for renters and landlords. Our calculator uses standard proration methods to calculate rent for partial months based on actual days or 30-day months, helping tenants and landlords determine fair rent amounts for mid-month moves.

Last updated: January 10, 2025

Move-in and move-out calculations
Multiple proration methods supported
Daily rate and refund calculations

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Prorate Rent Calculator
Calculate prorated rent for partial month, move-in, or move-out dates

28, 29, 30, or 31 days

Day of month you move in

Rent Calculation Results

Move-In Prorated Rent16 days

$800.00

Regular monthly rent: $1,500

Daily Rate

$50.00

Savings

$700.00

First Month Payment

$800.00

From day 15 to end of month

Calculation Breakdown

Monthly Rent:$1,500
Days in Month:30 days
Daily Rate:$50.00/day
Days Charged:16 days
Prorated Amount:$800.00

💡 Pro Tip

Always confirm the proration method with your landlord. Some use actual days in month, others use a standard 30-day month.

Prorate Rent Calculator Features & Methods

Move-In Rent Calculator
Calculate partial first month rent for mid-month move-in

Calculation

Move-In Day to Month End

Pay only for days you occupy the rental

Move-Out Rent Calculator
Calculate final month rent and refund amount

Calculation

Month Start to Move-Out Day

Receive refund for unused days if prepaid

Daily Rent Rate Calculator
Calculate per-day rental cost for any property

Formula

Monthly Rent ÷ Days

Foundation for all proration calculations

Partial Month Rent Calculator
Calculate rent for short-term or mid-month stays

Use case

Short-Term Rentals

Calculate rent for specific date ranges

Rent Refund Calculator
Calculate refund amount for early move-out

Refund calculation

Full Month - Prorated

Determine refund if full month was prepaid

Landlord Proration Calculator
Calculate fair rent charges for property management

Purpose

Fair Billing

Ensure accurate rent charges for all tenants

Quick Example Result

$1,500 monthly rent, moving in on day 15 of a 30-day month:

Daily Rate

$50.00

Days Charged

16

Prorated Rent

$800

Savings

$700

How Our Prorate Rent Calculator Works

Our prorate rent calculator determines fair partial month rent by dividing your monthly rent by the number of days in the month to establish a daily rate, then multiplying by the number of days occupied. The calculator supports multiple proration methods including actual calendar days and standard 30-day months, ensuring accurate calculations for move-in, move-out, and short-term rental scenarios.

Rent Proration Calculation Methods

Actual Days Method (Recommended):
Daily Rate = Monthly Rent ÷ Actual Days in Month
Example: $1,500 ÷ 30 days = $50/day
30-Day Method (Simplified):
Daily Rate = Monthly Rent ÷ 30 (always)
Example: $1,500 ÷ 30 = $50/day (even in 31-day months)
Prorated Amount:
Prorated Rent = Daily Rate × Number of Days Occupied
Example: $50/day × 16 days = $800

The actual days method is more accurate and fair for both parties, as it accounts for months with different lengths (February vs. August). The 30-day method is simpler but may slightly favor the tenant in 31-day months and the landlord in 28/29-day months. Most professional property managers use the actual days method for accuracy.

📅 Rent Proration Timeline

Visual representation of prorated rent periods for move-in and move-out

Proration Best Practices

Proper rent proration requires clear communication and documentation between landlords and tenants. The proration method should be specified in the lease agreement to avoid disputes. Most landlords prorate based on actual calendar days in the specific month, which is considered the fairest method. Always calculate and document prorated amounts before move-in to ensure both parties understand the financial obligations.

  • Actual days method: Most accurate, uses actual calendar days (28-31) for that month
  • 30-day method: Simplified approach, always divides by 30 regardless of actual days
  • Banker's method: Uses 360-day year (30-day months) for consistent calculations
  • Move-in: Charge from move-in date through end of month, include move-in day
  • Move-out: Charge from month start through move-out date, confirm if move-out day included
  • Documentation: Always put prorated amounts in writing to avoid disputes

Sources & References

  • National Apartment Association (NAA) - Rent Proration GuidelinesIndustry standards for rent proration in residential leases
  • Institute of Real Estate Management (IREM) - Property Management Best PracticesProfessional guidance on rent calculations and tenant billing
  • State Landlord-Tenant Laws - Rent Proration RequirementsState-specific regulations on rent proration and refunds

Prorate Rent Calculator Examples

Prorated Rent Calculator Example
Calculate move-in rent for mid-month lease start

Rental Details:

  • Monthly Rent: $1,500
  • Move-In Date: 15th of month
  • Days in Month: 30 days
  • Days Occupied: 16 days (15th-30th)

Calculation Steps:

  1. Calculate daily rate: $1,500 ÷ 30 = $50/day
  2. Count days occupied: 15th to 30th = 16 days
  3. Calculate prorated rent: $50 × 16 = $800
  4. Savings vs. full month: $1,500 - $800 = $700
  5. Total move-in cost: $800 prorated + deposits

Result: Pay $800 for partial first month (16 days)

Saves $700 compared to paying full month. Daily rate: $50. Next month starts at full $1,500.

Move-Out Example

$1,500/mo, moving out on 10th

$500 owed, $1,000 refund

31-Day Month Example

$1,550/mo, 15 days in January (31 days)

$750 prorated ($50/day × 15)

Frequently Asked Questions

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