All mortgage brokers ought to have a cushty working information of how prepayment penalties are calculated and utilized.
Our shoppers rely upon us to know the ins and outs of those often-significant penalties as a way to reduce the fee for them—or higher but, to assist them keep away from penalties altogether.
Prepayment penalties could be a daunting matter for any mortgage skilled. It includes realizing particular person lender insurance policies, to not point out a fair proportion of math.
But it surely doesn’t have to be sophisticated. Under I’m going to elucidate some methods to assist improve your consolation degree with calculating prepayment penalties—and not using 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 shoppers why they exist and the way they’re essential from a lender’s perspective.
Once we purchase an equipment, a mattress and even clothes, we’re offered in easy phrases what the prices will probably be if we resolve to return the product. Whether or not it’s a restocking charge, a 100-day sleep assure, or a 30-day alternate coverage, we’re instructed the phrases upfront.
We all know what we’re committing to so we will really feel as snug as potential with our determination.
These promoting such merchandise are intimately accustomed to these insurance policies on the subject of having their product returned. Nobody desires an sad buyer.
With mortgages, the prepayment penalty coverage is basically the lender’s return coverage that applies to closed-term mortgages.
When are prepayment penalties utilized?
Now that we perceive why we have now prepayment penalties, let’s take a look at how they differ by mortgage product:
With an open mortgage, you pay a better rate of interest in alternate for the flexibleness to repay your mortgage in full at any level with out penalty.
Open mortgages are widespread for these in search of short-term financing options when the borrower intends to repay the mortgage earlier than the tip of the time period.
- Closed variable-rate mortgages
The prepayment penalty on variable-rate merchandise with a closed time period is often 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 obtained off of prime, whereas some lenders use their prime price.
On a $500,000 mortgage, prime – 1.00% can imply a further $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 often the better of three months’ curiosity or the Curiosity Fee 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 atmosphere the place the lender might re-loan the mortgage funds at a better price, prepayment penalties are typically restricted to a few 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 Fee Differential
Rate of interest differential may 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 unfavourable worth, it’s nonetheless being calculated.
By realizing your rate of interest, remaining time period, steadiness, amortization, and cost frequency, the curiosity to maturity may be calculated utilizing an amortization abstract at any level throughout your time period.
Improve your cost and/or make a lump-sum cost and the curiosity to maturity will lower. It’ll additionally decrease the reinvestment curiosity to maturity, which suggests a decrease IRD than in the event 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 Fee Distinction (%) x Remaining Time period (Years) = Curiosity Fee Differential (Expressed as a proportion of steadiness)
Tip: The Curiosity Fee Distinction is the distinction between the contract price and the reinvestment rate of interest for a mortgage of the same time period.
How prepayment penalties are calculated based mostly on lender kind
Monolines have a tendency to check your contract price to the precise charges being supplied for comparable merchandise beneath the classes of insured, insurable and standard.
In case your contract price is 5% and the reinvestment rate of interest is 4%, then the Curiosity Fee Distinction is:
Contract Fee (5%) – Reinvestment Curiosity Fee (4%) = 1%
Banks arrange their calculations in a method that requires some further math.
They publicize posted charges, however usually give the borrower a reduction. An insured mortgage is extra prone to have a better low cost than a standard mortgage, for instance.
Preliminary Posted Fee (6%) – Low cost (1%) = Contract Fee (5%)
If the same time period’s posted price is at the moment 5%, then the Curiosity Fee Distinction is:
Contract Fee (5%) – Related-term Posted Fee (5%) – Low cost (1%) = 1%
On this instance, the reinvestment rate of interest may be seen as:
Related-term Posted Fee (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. Meaning there are set dates the place a recognized change to the reinvestment rate of interest might happen.
Figuring out the reinvestment rate of interest
The most important problem for a lot of brokers is realizing the best way to discover and calculate the reinvestment rate of interest and realizing 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 through which the closest comparable time period modifications just isn’t a shock, so we may be proactive as a way to assist our shoppers.
For reinvestment rates of interest, they’ll 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 likely 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 going through?
If it’s an IRD, then your lender has most definitely used reinvestment rates of interest that aren’t tied to any of their precise mortgage merchandise.
By definition, the prepayment penalty must 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 are significantly decrease than their product choices.
In case you are not in IRD territory on day one, what about after a 12 months or two based mostly on in the present day’s components?
Utilizing in the present day’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. Typically, 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 think about recommending a lender for our shoppers, 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 alter over the course of a mortgage time period in secure, rising and reducing rate of interest environments? Are we taking a look at a big IRD on day one or do we have to see time go or reducing price strain earlier than an IRD better than three months’ curiosity is created?
Understanding these solutions permits us to be proactive to our shoppers’ wants as a substitute of being reactive. The very last thing we would like is an upset consumer after they see the true price 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 (Challenge #1, 2023)