Prime Rate Impact Calculators (Canada)

Interactive tools showing how changes in prime affect a prime ± spread variable-rate mortgage. Includes an Adjustable Payment view and a Static Payment amortization-drift view.

Prime-minus pricing

Inputs

Current Prime Rate (%)

Pricing vs Prime

Spread (X) (%)

Mortgage Balance ($)

Amortization (Years)

Term Horizon for “Total Interest” (Years)

Variable Mortgage Structure

Current Monthly Payment ($) (used for Static Payment mode)

Prime Change (basis points)

0 bps

Tip: 25 bps = 0.25%. Slide to model rate cuts/hikes. Most lenders move prime in lockstep with Bank of Canada overnight-rate changes.

Educational use only. Actual lender behavior varies (trigger points, payment adjustment rules, compounding conventions, and product-specific terms).

Results

Your Variable Rate (Current)

—

Prime ± spread

Your Variable Rate (After Prime Change)

—

Includes slider adjustment

Monthly Payment (Current)

—

Adjustable: calculated • Static: input

Monthly Payment (After Prime Change)

—

Adjustable: recalculated • Static: unchanged

Scenario	Monthly Interest	Monthly Principal	Implied Amortization
Current	—	—	—
After Prime Change	—	—	—

Approx. Total Interest Over Horizon

—

— years (simple amortization projection)

Payment Sensitivity (per +25 bps)

—

Adjustable Payment mode only