Myth 1: Small Extra Payments Don’t Make a Difference
Reality: Even $50–$100/month creates measurable, compounding impact. On a $280,000 mortgage at 6.5% with 23 years remaining, $100/month extra saves $23,900 in interest and shortens the loan by 2.5 years. The compounding effect means even small reductions in balance generate meaningful future interest savings over decades.
Myth 2: I’ll Lose My Tax Deduction If I Pay Extra
Reality: You only lose the mortgage interest deduction on interest you don’t pay — because you’ve paid down the principal faster. But here’s the key: you also save the actual interest payment that would have been deducted. Paying $1,000 in interest that would have generated a $220 deduction (at 22% bracket) means a net cost of $780. Avoiding that $1,000 in interest entirely saves $1,000 — far better than the $220 deduction on interest you did pay. The deduction is always worth less than the interest it represents.
Myths 3–5 Debunked
Extra mortgage payment myths 3–5 and what they cost
| Myth | Reality | Cost of Believing It |
|---|---|---|
| Myth 3: Refinancing is always better than extra payments | Refinancing resets amortization clock and has $3,000–$8,000 upfront cost; extra payments cost nothing and provide immediate guaranteed return | Unnecessary refinancing costs; delayed payoff |
| Myth 4: I need to pay an exact extra monthly amount — can’t be irregular | Any extra principal payment at any time saves interest — irregular extra payments are fine; consistency helps but is not required | Paralysis — homeowners don’t start because they can’t commit to a fixed monthly amount |
| Myth 5: Extra mortgage payments aren’t worth it because the bank already calculated the interest | The bank has not pre-collected interest — your interest is calculated monthly on remaining balance. Any extra principal payment immediately reduces next month’s interest calculation | Misunderstanding leads homeowners to believe payoff acceleration is impossible |
This myth — caused by comparing the small extra payment to the large loan balance — prevents most homeowners from starting. But extra payments don’t have to beat the whole balance at once; they work through compounding over many years. $100/month for 25 years at 6.5% saves $24,000. The scale is temporal, not instantaneous.
See the Real Impact of Your Extra Payment
Even $100/month makes a measurable difference. Enter your balance to see exactly how much your proposed extra payment saves over your loan term.