Calculator Inputs
Enter lease, notice, fee, and credit details for a detailed estimate.
Example Data Table
| Input | Example Value | Why it matters |
|---|---|---|
| Monthly rent | $1,500 | Base used for daily rent, vacancy rent, and some fees. |
| Required notice | 60 days | Short notice can create extra daily rent exposure. |
| Termination fee | 2 months of rent | Many leases set a fixed break fee or rent multiplier. |
| Expected relet date | 45 days after move-out | Longer vacancy can raise remaining rent liability. |
| Security deposit | $1,200 | Can offset part of the subtotal when allowed. |
Formula Used
Daily Rent = Monthly Rent ÷ Daily Rent Basis
Days Remaining = Lease End Date − Termination Date
Vacancy Rent Liability = Vacancy Days × Daily Rent
Notice Shortfall Days = Required Notice Days − Actual Notice Days
Notice Charge = Notice Shortfall Days × Daily Rent
Relet Deficiency = max(0, Current Rent − Relet Rent) × Post-Relet Days ÷ Daily Rent Basis
Termination Fee = Fixed Amount or Monthly Rent × Fee Months
Base Subtotal = Vacancy Liability + Deficiency + Notice Charge + Fee + Extra Balances
Total Due = Base Subtotal + Sales Tax − Security Deposit Credit
How to Use This Calculator
- Enter your monthly rent and lease dates first.
- Add your notice date and the notice period required in the lease.
- Choose whether the break fee is a fixed amount or months of rent.
- Enter any concession payback, unpaid balances, repair charges, or reletting costs.
- Add the expected relet date and relet rent to model vacancy and deficiency.
- Include the deposit if you want the estimate to show a credit.
- Click the calculate button to show results above the form.
- Use the CSV or PDF buttons to save a copy.
Frequently Asked Questions
1. What does this calculator estimate?
It estimates possible early termination costs, including vacancy rent, notice shortfall charges, break fees, unpaid balances, and deposit credits. It is designed for planning, comparison, and documentation before speaking with a landlord, property manager, or attorney.
2. Why is the expected relet date important?
The relet date helps estimate how long the unit may stay vacant. A longer vacancy often increases remaining rent liability. If the property relets quickly, your projected cost may drop because fewer days remain unpaid.
3. What is a notice shortfall charge?
It represents rent exposure when your lease requires more notice than you actually gave. The calculator multiplies the missing days by daily rent, but you can disable that charge if your lease or local rules treat notice differently.
4. How does the termination fee setting work?
Choose a fixed amount if your lease lists one number. Choose months of rent if the lease says the fee equals one, two, or more months. The calculator converts that choice into a single fee amount.
5. Why would post-relet deficiency apply?
Some users want to model a case where the replacement rent is lower than the current lease rent. This setting estimates that gap across the remaining term after reletting, which can matter in negotiated settlements or damage claims.
6. Should I always apply the security deposit?
Not always. Some deposits may already be disputed, partially withheld, or reserved for documented damage. Use the toggle to compare totals with and without the deposit credit so you can discuss the difference clearly.
7. Does this replace legal review?
No. Lease clauses, mitigation duties, statutory limits, tax treatment, and evidentiary rules vary by place and contract language. Use this estimate as a planning tool, then confirm the numbers with your lease and a qualified professional.
8. Can I save the results for later?
Yes. After calculation, you can download a CSV summary for spreadsheets or create a PDF summary for recordkeeping. That makes it easier to compare scenarios, share assumptions, or attach an estimate to your move-out notes.