All mortgage brokers ought to have a snug working information of how prepayment penalties are calculated and utilized.
Our purchasers rely upon us to know the ins and outs of those often-significant penalties with the intention to reduce the price for them—or higher but, to assist them keep away from penalties altogether.
Prepayment penalties generally is a daunting subject for any mortgage skilled. It entails understanding particular person lender insurance policies, to not point out a fair proportion of math.
But it surely doesn’t have to be difficult. Under I’m going to clarify some methods to assist enhance your consolation degree with calculating prepayment penalties—with out a prepayment calculator—in addition to the mechanics and reasoning behind them.
Prepayment penalty coverage = the lender’s return coverage
Not a single mortgage shopper likes the considered having to pay a mortgage penalty. However as brokers, it’s our job to tell purchasers why they exist and the way they’re essential from a lender’s perspective.
After we purchase an equipment, a mattress and even clothes, we’re offered in easy phrases what the prices will likely be if we resolve to return the product. Whether or not it’s a restocking payment, a 100-day sleep assure, or a 30-day alternate coverage, we’re advised the phrases upfront.
We all know what we’re committing to so we will really feel as snug as doable with our resolution.
These promoting such merchandise are intimately conversant in these insurance policies with regards to having their product returned. Nobody needs an sad buyer.
With mortgages, the prepayment penalty coverage is actually the lender’s return coverage that applies to closed-term mortgages.
When are prepayment penalties utilized?
Now that we perceive why we’ve prepayment penalties, let’s have a look at how they differ by mortgage product:
With an open mortgage, you pay the next rate of interest in alternate for the pliability to repay your mortgage in full at any level with out penalty.
Open mortgages are frequent for these on the lookout for short-term financing options when the borrower intends to repay the mortgage earlier than the top of the time period.
- Closed variable-rate mortgages
The prepayment penalty on variable-rate merchandise with a closed time period is usually three months’ curiosity. The place it might differ is with the rate of interest getting used for the calculation.
Most lenders use the present contract price with the low cost acquired off of prime, whereas some lenders use their prime price.
On a $500,000 mortgage, prime – 1.00% can imply an extra $1,250 when utilizing prime price for the three months’ curiosity calculation.
- Closed fixed-rate mortgages
The prepayment penalty for fixed-rate mortgages with a closed time period is usually the better of three months’ curiosity or the Curiosity Charge Differential (IRD).
An IRD penalty ensures that the lender is compensated for his or her curiosity losses after they re-loan the mortgage funds at a decrease price than the present mortgage for the rest of the mortgage time period.
In a rising interest-rate surroundings the place the lender may re-loan the mortgage funds at the next price, prepayment penalties are typically restricted to 3 months’ curiosity. Lowering interest-rate environments have a tendency to provide bigger IRD penalties, particularly for contracts with years remaining on the mortgage time period.

Breaking down the Curiosity Charge Differential
Rate of interest differential might be seen because the “curiosity to maturity” minus the “reinvestment curiosity to maturity.”
With closed fixed-rate mortgages, the IRD is at all times being calculated, even when it’s lower than three months’ curiosity. Even when the IRD is zero or a destructive worth, it’s nonetheless being calculated.
By understanding your rate of interest, remaining time period, stability, amortization, and cost frequency, the curiosity to maturity might be calculated utilizing an amortization abstract at any level throughout your time period.
Enhance your cost and/or make a lump-sum cost and the curiosity to maturity will lower. It is going to additionally decrease the reinvestment curiosity to maturity, which suggests a decrease IRD than should you didn’t use a prepayment privilege.
With a purpose to simplify issues, we’re going to ignore compounding curiosity and amortization for our fast calculation:
Curiosity Charge Distinction (%) x Remaining Time period (Years) = Curiosity Charge Differential (Expressed as a proportion of stability)
Tip: The Curiosity Charge Distinction is the distinction between the contract price and the reinvestment rate of interest for a mortgage of an analogous time period.
How prepayment penalties are calculated based mostly on lender sort
Monolines have a tendency to check your contract price to the precise charges being supplied for related merchandise underneath the classes of insured, insurable and traditional.
In case your contract price is 5% and the reinvestment rate of interest is 4%, then the Curiosity Charge Distinction is:
Contract Charge (5%) – Reinvestment Curiosity Charge (4%) = 1%
Banks arrange their calculations in a manner that requires some further math.
They publicize posted charges, however sometimes give the borrower a reduction. An insured mortgage is extra more likely to have a better low cost than a standard mortgage, for instance.
Preliminary Posted Charge (6%) – Low cost (1%) = Contract Charge (5%)
If the same time period’s posted price is at present 5%, then the Curiosity Charge Distinction is:
Contract Charge (5%) – Related-term Posted Charge (5%) – Low cost (1%) = 1%
On this instance, the reinvestment rate of interest might be seen as:
Related-term Posted Charge (5%) – Low cost (1%) = 4%

Figuring out the closest comparable time period
Most lenders have a chart that lets you decide the comparable time period based mostly on the time remaining on the present mortgage. Which means there are set dates the place a recognized change to the reinvestment rate of interest may happen.
Figuring out the reinvestment rate of interest
The largest problem for a lot of brokers is understanding learn how to discover and calculate the reinvestment rate of interest and understanding the way it can change over time.
There are solely two methods it might change:
- The remaining time period decreases to trigger a change to the closest comparable time period
- The lender modifications its reinvestment rate of interest/posted price
The dates during which the closest comparable time period modifications isn’t a shock, so we might be proactive with the intention to assist our purchasers.
For reinvestment rates of interest, they will change at any time, although we typically know if they’re trending up or down based mostly on the bond markets.
When the reinvestment rate of interest is significantly decrease than your precise contract price, we are inclined to see bigger IRD prepayment penalties. Particularly when the borrower has years remaining on their mortgage time period.
Think about that your consumer determined to interrupt their mortgage on day one of many contract. What sort of prepayment penalty would they be dealing with?
If it’s an IRD, then your lender has almost definitely used reinvestment rates of interest that aren’t tied to any of their precise mortgage merchandise.
By definition, the prepayment penalty ought to be three months’ curiosity on day one, not an IRD. If a lender is poised to cost you an IRD day one, then they’re utilizing reinvestment rates of interest which might be significantly decrease than their product choices.
If you’re not in IRD territory on day one, what about after a yr or two based mostly on right now’s elements?
Utilizing right now’s rates of interest/reinvestment rates of interest, we’re monitoring solely a three-month curiosity penalty with some lenders at each level over the course of the mortgage time period. With a purpose to see an IRD that’s better than three months’ curiosity we must see their reinvestment rates of interest lower.
With banks, we are typically in IRD territory after six months, as soon as the comparable rate of interest is decrease than the unique mortgage time period. Basically, the reinvestment rates of interest for shorter phrases tends to be decrease than longer phrases. The exception could be one-year or six-month phrases.
What does this all imply?
Earlier than we even take into account recommending a lender for our purchasers, we have to have an entire understanding of how their reinvestment rates of interest are calculated and the place they’re posted. We have to perceive the lender’s return coverage.
How do they modify over the course of a mortgage time period in secure, rising and reducing rate of interest environments? Are we a big IRD on day one or do we have to see time move or decreasing price stress earlier than an IRD better than three months’ curiosity is created?
Realizing these solutions permits us to be proactive to our purchasers’ wants as an alternative of being reactive. The very last thing we wish is an upset consumer after they see the true value of returning their mortgage early.
Opinion items and views expressed are these of respective contributors and don’t signify the views of the writer and its associates.
This text was first revealed in Views journal (Concern #1, 2023)