Free Tool

Prorated Rent Calculator

Moving in mid-month? Find out exactly how much you owe for a partial month β€” instantly.

Enter your rent and move-in date above to calculate instantly
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3 Methods
Calendar, banker's, and annual
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Instant
Results as you type
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Private
No data saved, ever
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Mobile Ready
Works on any device

How Prorated Rent Works

1

Enter Your Details

Input your monthly rent amount and the date you're moving in (or out) mid-month.

2

Choose a Method

Select the calculation method your lease specifies β€” most leases use calendar days (days in the actual month).

3

Get Your Amount

See your exact prorated rent, daily rate, and a clear formula breakdown you can share with your landlord.

The 3 Prorated Rent Calculation Methods

Most Common

Calendar Days Method

Divides rent by the actual number of days in the move-in month.

Daily Rate = Monthly Rent Γ· Days in Month  |  Amount = Daily Rate Γ— Days Occupied

Example: $1,500 rent, moving in March 15 β†’ $1,500 Γ· 31 = $48.39/day Γ— 17 days = $822.58

Banker's Method

30-Day Month Method

Always divides by 30 regardless of actual days in the month. Simpler but slightly less accurate.

Daily Rate = Monthly Rent Γ· 30  |  Amount = Daily Rate Γ— Days Occupied

Example: $1,500 rent, moving in March 15 β†’ $1,500 Γ· 30 = $50.00/day Γ— 17 days = $850.00

Annual Method

365-Day Annual Method

Uses a consistent daily rate based on annual rent. Common in commercial leases.

Daily Rate = (Monthly Rent Γ— 12) Γ· 365  |  Amount = Daily Rate Γ— Days Occupied

Example: $1,500 rent, moving in March 15 β†’ ($1,500 Γ— 12) Γ· 365 = $49.32/day Γ— 17 days = $838.36

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Renting Guides & Articles

Tenant Rights

Arizona Prorated Rent Laws: What Renters Need to Know

Arizona doesn't require landlords to prorate rent, but A.R.S. 33-1321 sets a fast 14-day security deposit deadline with double damages for violations.

Tenant Rights

California Prorated Rent Law 2026: When Landlords Must Prorate

California has no single statute that plainly mandates prorated rent for a mid-month move-in. This guide explains what the Civil Code, the implied covenant of good faith, and consumer-protection law actually say β€” and what they do not β€” with links to the official sources.

Tenant Rights

Colorado Prorated Rent Laws: What Renters Need to Know

Colorado has no law requiring prorated rent, but its updated 2026 security deposit rules (HB25-1249) give renters strong new protections on deposit returns and disputes.

Renting Basics

First Apartment Checklist: Everything You Need Before, During, and After Moving In

Moving into your first apartment involves dozens of decisions across several weeks β€” this checklist makes sure nothing falls through the cracks.

Tenant Rights

Florida Prorated Rent Laws: What Miami, Orlando, and Tampa Renters Need to Know

Florida's Residential Landlord-Tenant Act doesn't require proration, but most FL landlords prorate as standard practice β€” and if yours doesn't, the Florida DTPA and your lease terms give you leverage.

Tenant Rights

Georgia Prorated Rent Laws: What Renters Need to Know

Georgia has no law requiring landlords to prorate rent, but the Georgia Security Deposit Statute (OCGA Β§ 44-7-30 through Β§ 44-7-37) gives renters clear tools for recovering deposits and disputing overcharges.

All articles β†’

Frequently Asked Questions