Prorated Rent Calculator
Calculate fair partial-month rent when moving in or out mid-month. Enter your monthly rent and occupancy dates to determine the adjusted amount.
Enter Rental Information
How Prorated Rent Works
What is Prorated Rent?
Prorated rent is a calculated portion of the monthly rent that accounts for partial month occupancy. It's commonly used when tenants move in or out mid-month, ensuring they only pay for the days they actually occupy the property.
Prorated Rent Formula
The standard calculation method is:
Prorated Rent = (Monthly Rent ÷ Days in Month) × Days Occupied
This method is fair because it accounts for varying month lengths (28-31 days).
Alternative Calculation Methods
Some landlords use these methods (check your lease):
- 30-Day Month: Always divides rent by 30 days
- Banker's Month: Uses 365/12 = 30.4167 days per month
This calculator uses the calendar month method as it's most common.
Prorated Rent Examples
Click on an example to see the step-by-step calculation:
Example 1: Move-In on the 15th (31-day month)
Scenario: Moving in on January 15th in a 31-day month with $1,500 rent.
1. Days in Month: 31 (January)
2. Days Occupied: 17 (from 15th to 31st inclusive)
3. Daily Rate: $1,500 ÷ 31 ≈ $48.39/day
4. Calculation: $48.39 × 17 ≈ $822.58
5. Result: Prorated rent = $822.58
Example 2: Move-Out on the 10th (30-day month)
Scenario: Moving out on April 10th in a 30-day month with $1,200 rent.
1. Days in Month: 30 (April)
2. Days Occupied: 10 (from 1st to 10th inclusive)
3. Daily Rate: $1,200 ÷ 30 = $40/day
4. Calculation: $40 × 10 = $400
5. Result: Prorated rent = $400
Example 3: Mid-Month Lease (28-day February)
Scenario: Lease starts February 14th in non-leap year with $1,800 rent.
1. Days in Month: 28 (February)
2. Days Occupied: 15 (from 14th to 28th inclusive)
3. Daily Rate: $1,800 ÷ 28 ≈ $64.29/day
4. Calculation: $64.29 × 15 ≈ $964.29
5. Result: Prorated rent = $964.29
Example 4: Partial Month (15-day occupancy)
Scenario: Occupancy from March 10-24 with $2,000 rent.
1. Days in Month: 31 (March)
2. Days Occupied: 15 (from 10th to 24th inclusive)
3. Daily Rate: $2,000 ÷ 31 ≈ $64.52/day
4. Calculation: $64.52 × 15 ≈ $967.74
5. Result: Prorated rent = $967.74
Example 5: 30-Day Month Method
Scenario: Lease specifies 30-day method. Move-in on July 20th with $1,600 rent.
1. Days in Month: 30 (method override)
2. Days Occupied: 12 (from 20th to 31st inclusive)
3. Daily Rate: $1,600 ÷ 30 ≈ $53.33/day
4. Calculation: $53.33 × 12 ≈ $640.00
5. Result: Prorated rent = $640.00
Note: Differs from calendar method ($619.35 for July's 31 days)
Example 6: Banker's Month Method
Scenario: Lease uses banker's method (30.4167 days). Move-out on May 15th with $1,700 rent.
1. Days in Month: 30.4167 (method override)
2. Days Occupied: 15 (from 1st to 15th inclusive)
3. Daily Rate: $1,700 ÷ 30.4167 ≈ $55.89/day
4. Calculation: $55.89 × 15 ≈ $838.35
5. Result: Prorated rent = $838.35
Example 7: Leap Year February
Scenario: Move-in on February 29th in leap year with $1,900 rent.
1. Days in Month: 29 (February leap year)
2. Days Occupied: 1 (only February 29th)
3. Daily Rate: $1,900 ÷ 29 ≈ $65.52/day
4. Calculation: $65.52 × 1 ≈ $65.52
5. Result: Prorated rent = $65.52
Example 8: Partial First & Last Months
Scenario: Lease from June 15th to September 10th at $1,300/month.
First Month (June):
- Days occupied: 16 (June 15-30)
- Prorated: ($1,300 ÷ 30) × 16 ≈ $693.33
Last Month (September):
- Days occupied: 10 (Sept 1-10)
- Prorated: ($1,300 ÷ 30) × 10 ≈ $433.33
Full Months: July and August = $1,300 × 2 = $2,600
Total Lease Amount: $693.33 + $2,600 + $433.33 = $3,726.66
Example 9: High-Rent Short Stay
Scenario: Luxury apartment ($5,000/month) occupied for 5 days in August.
1. Days in Month: 31 (August)
2. Days Occupied: 5
3. Daily Rate: $5,000 ÷ 31 ≈ $161.29/day
4. Calculation: $161.29 × 5 ≈ $806.45
5. Result: Prorated rent = $806.45
Example 10: Month-to-Month Adjustment
Scenario: Tenant gives notice on October 12th to vacate by October 25th with $1,100 rent.
1. Days in Month: 31 (October)
2. Days Occupied: 25 (October 1-25)
3. Daily Rate: $1,100 ÷ 31 ≈ $35.48/day
4. Calculation: $35.48 × 25 ≈ $887.10
5. Result: Prorated rent = $887.10
Prorated Rent FAQs
1. What is prorated rent?
Prorated rent is a partial rent payment covering only the days you actually occupy a rental unit during a month, typically when moving in or out mid-month.
2. How is prorated rent calculated?
The standard method divides the monthly rent by the number of days in that specific month, then multiplies by the number of days occupied.
3. Is prorated rent required by law?
Laws vary by location, but most jurisdictions require fair proration unless the lease specifies otherwise. Always check local landlord-tenant laws.
4. What if my lease specifies a different calculation method?
Lease terms typically override standard practices. Common alternatives include the 30-day method or banker's month method (365/12 days).
5. Are move-in and move-out days counted?
Typically yes - both are usually counted as full occupancy days unless otherwise specified in the lease.
6. How does February affect prorated rent?
February has fewer days (28/29), so daily rates are higher. A 15th move-in would cost more in February than in a 31-day month for the same rent.
7. What if I disagree with my landlord's calculation?
Politely ask for their calculation method and compare with standard practices. Disputes may require mediation or legal advice depending on the amount.
8. Can prorated rent be applied to security deposits?
No, security deposits are typically fixed amounts. Proration only applies to regular rent payments.
9. How should prorated rent appear on receipts?
It should show the calculation (monthly rent, days occupied, daily rate) and the prorated amount, along with any other fees.
10. Does proration apply to all lease types?
Yes, but short-term rentals (under 30 days) often use nightly rates instead. Proration is most common for monthly leases.
