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Mortgage Prepayment Privileges: Save Thousands in Interest

Voytek Jedrusiak Voytek Jedrusiak
November 28, 2025
10 min read
Updated May 13, 2026

Prepayment privileges are one of the most powerful—and underused—tools for building wealth through your mortgage. Used strategically, they can save you tens of thousands of dollars and shave years off your mortgage. Here's how to maximize them.


What Are Prepayment Privileges?

Prepayment privileges allow you to pay down your mortgage faster than your regular payments require, without penalty:

  • Lump sum prepayments: Extra payments toward principal
  • Payment increases: Higher regular payments
  • Double-up payments: Make additional payments

Key point: These are penalty-free within limits. Exceed the limits, and penalties apply.


Types of Prepayment Privileges

Lump Sum Prepayments

Make additional payments toward principal:

Timing
Big 5 Banks 10-20% of original principal Annually
Monoline lenders 15-20% of original principal Annually
Credit unions 10-20% of original principal Varies

Example: $500,000 mortgage with 15% prepayment privilege = $75,000 extra per year allowed

Payment Increases

Increase your regular payment amount: Typical Limit
Big 5 Banks 10-20% increase
Monoline lenders 15-25% increase
Credit unions 10-20% increase

Key feature: Usually cumulative over the term

Double-Up Payments

Make additional payments matching your regular payment:

  • Usually allowed anytime
  • Up to your regular payment amount
  • Goes directly to principal

Start Saving Today

Review your mortgage options with us. We'll ensure you get strong prepayment privileges that match your goals.


The Math: How Prepayments Save You Money

Scenario: $500,000 mortgage at 4.5%, 25-year amortization

Interest Saved
$5,000 lump sum annually 4.2 years $48,500
$10,000 lump sum annually 7.1 years $82,000
10% payment increase 2.8 years $34,000
20% payment increase 5.2 years $61,000
$200/month extra (bi-weekly) 3.5 years $42,000

The Power of Early Prepayments

Prepayments early in your mortgage save more because you're reducing the principal that compounds:

  • Year 1: $10,000 prepayment saves ~$11,000 in interest
  • Year 15: $10,000 prepayment saves ~$4,000 in interest

Takeaway: If you can only prepay sometimes, prioritize early years.


Prepayment Strategies

Strategy 1: Annual Bonus

Apply work bonuses or tax refunds as lump sum prepayments:

  • Timing: After you receive bonus/refund
  • Amount: Up to your annual limit
  • Impact: Significant if consistent

Strategy 2: Bi-Weekly Accelerated Payments

Switch from monthly to bi-weekly accelerated:

  • You make 26 half-payments instead of 12 full payments
  • Effectively one extra monthly payment per year
  • Typical savings: 3+ years and $30,000+ on $500K mortgage

Strategy 3: Round Up Payments

Increase payments to a round number:

  • Payment of $2,834? Make it $3,000
  • Extra $166/month = $2,000/year to principal
  • Barely noticeable, significant impact over time

Strategy 4: Match Payment to Budget Improvements

As income increases, increase payments:

  • Got a raise? Increase payment by the same amount
  • Paid off car loan? Redirect that payment to mortgage
  • Lifestyle inflation avoided, wealth building accelerated

Understanding Prepayment Dates

Anniversary Date Method

Most common—your prepayment year runs from anniversary to anniversary:

  • Mortgage start: March 1, 2024
  • Prepayment year 1: March 1, 2024 - February 28, 2025
  • Limit resets: March 1, 2025

Strategy: Make prepayments early in each anniversary year to maximize interest savings.

Calendar Year Method

Some lenders reset privileges on January 1:

  • Simpler tracking
  • December/January can allow double prepayments (end of one year, start of next)

What's Next

Prepayment privileges are a key factor in choosing a mortgage. Get pre-approved with us and we'll ensure you get strong prepayment options that align with your wealth-building goals.

Ready to Get Started?

Contact us today for personalized mortgage advice and competitive rates.

Frequently Asked Questions

Prepayment privileges allow you to pay down your mortgage faster than your regular payments require, without penalty:
  • Lump sum prepayments: Extra payments toward principal
  • Payment increases: Higher regular payments
  • Double-up payments: Make additional payments
Key point: These are penalty-free within limits. Exceed the limits, and penalties apply.
A: As early as possible in your mortgage, and as early as possible in your prepayment year. Every month earlier saves more interest.
A: You can, but you'll pay a penalty on the excess amount. Calculate whether the penalty is less than the interest savings (rarely worth it unless you're paying off entirely).
A: Yes—unused privileges don't carry over. Use them or lose them each year.
A: No—they vary significantly. This should be a key consideration when choosing a mortgage. We help clients compare these features.
A: Prepayments work the same way regardless of rate type. With variable rates, prepayments are especially powerful as they're reducing principal that otherwise compounds at changing rates.