Yield maintenance is a prepayment penalty that compensates the lender for the interest income they lose when you pay off a fixed-rate loan early. The penalty equals the present value of the interest you would have paid above the Treasury rate over the remaining term, so in a rising rate environment yield maintenance costs less, and in a falling rate environment it costs more.
Why Yield Maintenance Exists
When a lender makes you a fixed-rate CRE loan at 5.5%, they’ve made a bet: they’ll earn that 5.5% for the full term. If rates drop to 4% and you refinance, the lender loses the spread they were counting on. Yield maintenance makes them whole.
Think of it this way: the lender is saying, “You can leave early, but you have to pay me what I would have earned.”
How the Calculation Works
The yield maintenance formula has three components:
- Remaining loan payments: every scheduled principal and interest payment from prepayment date through maturity
- Discount rate: typically the Treasury rate matching the remaining term, plus or minus a spread
- Present value calculation: each remaining payment is discounted back to today
The penalty = Present Value of the remaining payments discounted at the Treasury rate minus the outstanding balance (which is what those same payments are worth at the contract rate).
A Simplified Example
- Loan balance: $10,000,000
- Contract rate: 5.50%
- Remaining term: 5 years
- Current 5-year Treasury: 4.00%
The lender is losing 1.50% annually on $10M for 5 years. The present value of that stream, roughly $700,000, is your yield maintenance penalty.
The critical insight: When Treasury rates rise above your contract rate, yield maintenance can drop to near zero. This is why rate environment matters enormously for prepayment timing.
Yield Maintenance vs. Defeasance
Both are prepayment mechanisms, but they work differently (see defeasance in the glossary):
| Feature | Yield Maintenance | Defeasance |
|---|---|---|
| What you pay | Cash penalty to lender | Purchase Treasury portfolio to replace loan cashflows |
| Lender approval | Usually not required | Often required |
| Timeline | Days | 30-45 days typically |
| Cost drivers | Treasury rates vs. contract rate | Treasury portfolio cost + transaction fees |
| Best when | Rates are rising (penalty shrinks) | You need to release collateral |
Common Yield Maintenance Traps
1. The “Par or Greater” Floor
Many loan documents include language that sets the minimum prepayment at par (the outstanding balance). This means even if rising rates would make your yield maintenance penalty zero, you still owe the full balance. Check your docs.
2. Discount Rate Disputes
The specific Treasury benchmark used matters enormously. Some documents specify “interpolated Treasury,” others specify the nearest maturity. A 10 basis point difference in the discount rate can swing your penalty by tens of thousands of dollars.
3. The Open Period
Most fixed-rate CRE loans have an “open period,” typically the last 3 to 6 months of the term, where you can prepay without penalty. If your refinancing timeline is flexible, waiting for the open period can save significant money.
When to Prepay Despite Yield Maintenance
Sometimes paying the penalty makes financial sense:
- You can refinance at a significantly lower rate and the interest savings over the new term exceed the penalty
- You’re selling the property and the sale price justifies the cost
- Your current loan has restrictive covenants that are limiting your ability to execute your business plan
- You need to recapitalize and the new debt structure creates value that exceeds the prepayment cost
How LoanBoss Handles This
We calculate yield maintenance automatically for every loan in your portfolio, updated daily with live Treasury rates. When rates move, you see exactly how your prepayment economics change: no spreadsheet gymnastics, no calling your lender for a payoff quote. See real-time prepayment calculations and, for the portfolio-wide view, yield maintenance in your portfolio.
Frequently Asked Questions
Is yield maintenance tax deductible?
Generally yes; prepayment penalties on business property loans are deductible as a business expense in the year paid. Consult your tax advisor for your specific situation.
Can I negotiate yield maintenance out of my loan?
Rarely for fixed-rate permanent loans. However, you can sometimes negotiate the discount rate methodology, the open period length, or a step-down structure as alternatives.
What happens to yield maintenance if I assume the loan to a buyer?
Loan assumptions bypass yield maintenance entirely; the buyer takes over the loan at its existing terms. This is one of the most powerful strategies in a rising rate environment.
When does yield maintenance drop to zero?
When Treasury rates rise above your contract rate, the penalty can fall to near zero. Many loan documents set a par floor, so even then you owe the full outstanding balance; check your docs.
What is the open period?
The last 3 to 6 months of most fixed-rate CRE loan terms, during which you can prepay without penalty. If your refinancing timeline is flexible, waiting for the open period can save significant money.
Related reading
- Yield maintenance in your portfolio
- Real-time prepayment calculations
- Defeasance decisions in portfolio context
- Defeasance in the glossary
- Commercial prepayment penalty types compared
- Yield maintenance in the glossary
Your specific loan documents may vary from the general mechanics above. At LoanBoss, we abstract up to 400 fields per loan (including every prepayment provision) so you always know exactly where you stand.
Sources
- Pensford Capital, interest rate advisory data
- Bloomberg Rates, Treasury yield data