Washington RCW 59.18 & Seattle SMC 7.24
Washington Prorated Rent Calculator.
Accurately calculate partial-month rent for properties in Seattle, Spokane, Tacoma, Bellevue, and across Washington State.
Prorated Rent Statement
Official Calculation Summary • Generated via QuickProrate.com
Occupancy Type:
Move-In
Effective Date:
-
Base Monthly Rent:
$0.00
Days Occupied:
0 days
Calculation Breakdown
| Calculation Method | Formula Applied | Amount Due |
|---|
Full monthly lease rate
First day tenant possesses property
Prorated Rent Due
for partial month
The 3 Legal Methods Compared
Actual Days in Month
$0.00
Rent ÷ Days in Month
Banker's 30-Day Flat
$0.00
Rent ÷ 30 days flat
California 365-Day
$0.00
(Rent × 12 ÷ 365) × Days
Review Section 3 of your signed lease to confirm whether the Actual Days or Banker's 30-Day rule applies.
Current Month
Highlighted dates indicate billable occupancy.
Washington Landlord-Tenant Proration Rules
Tenancies in Washington State operate under the Residential Landlord-Tenant Act (RCW 59.18). When tenants move in mid-month, standard rental agreements prorate rent on an exact daily schedule.
// Standard Washington Statutory Formula
Daily Rate = Monthly Rent ÷ Actual Calendar Days
Total Prorate = Daily Rate × Days Occupied
Seattle Move-In Fee Protections
Under Seattle Municipal Code 7.24, property owners must provide a clear written schedule of all move-in charges. Partial-month rent must be calculated proportionally and can be combined with fee installment plans.