How much can extra principal payments save me?

Making just one extra mortgage payment per year or adding $100-$200 to your monthly principal can shave years off your 30-year term and save you $50,000 to $100,000+ in interest over the life of the loan.

How do I read an Amortization Schedule?

An amortization schedule shows exactly how much of each monthly payment goes toward interest versus principal. In the early years, the vast majority goes to interest. As the balance decreases, more goes toward the principal.

What causes an Escrow shortage?

Escrow shortages occur if your property taxes or homeowners insurance premiums increase beyond the lender's estimates. If this happens, your monthly payment will increase to cover the deficit and the new, higher costs.

What is Mortgage Recasting?

Recasting is when you pay a large lump sum toward your principal and the lender recalculates your monthly payments based on the new, lower balance. It's cheaper than refinancing if you already have a low interest rate.

How does inflation affect my fixed-rate mortgage?

Inflation actually benefits fixed-rate borrowers. As prices and wages rise, your monthly mortgage payment remains the same, effectively reducing the 'real cost' of your debt over time.

Advanced Loan Calculator

Advanced loan calculator with detailed amortization schedules, prepayment analysis, interest savings, and DTI checks based on income.

Popular Scenarios

Reducing balance, annuity, and grace period options

Interest Models

Introductory pricing and post-intro rate behavior

Detailed Output

Payment table, principal-interest charts, and income analysis

Popular loan methods

Experimental Models

Start with the 3 core fields: loan amount, annual rate, and term. Then refine income and intro-rate settings for a more realistic view.

Loan Amount

Interest rate (%/yr)

This is the base rate when no intro-rate model is enabled.

Apply intro-rate model

Term (Years)

Monthly Income

First Month

$1.9K

~ $63 / month | $436 / week

Principal

$271

Interest

$1.63K

Total Interest

$382.6K

Total Payment

$682.6K

Interest as a share of principal127.5%

Risk level

Safe

The first payment uses about 23.7% of your monthly income.

Compare Loan Terms

25 yr

Best fit

Avg Payment / Month

$2.03K

Total Interest

$307,686.45

Total Paid

$607,686.45

Save $74,947.02 in interest

Results are estimates based on the values you entered. Share the link to send the same setup to someone else.

You may pay about 127.5% of the original loan amount in interest over the full term.

Loan Summary

Quick summary of the most important loan metrics before you move into detailed analysis.

Loan Amount

$300 Thousand

Total Interest

~ $382.6 Thousand

Total Payment

~ $682.6 Thousand

Monthly Payment

~ $1.9 Thousand/mo

First payment

$1.9 Thousand

Last payment

$1.9 Thousand

Equity Milestone

mo 233

Month when principal exceeds interest payment.

Debt-to-income ratio

23.7%

Safe

Payment structure

Principal: 43.9% | Interest: 56.1%

Calculation assumptions

Level Principal + Interest | 6.5%/Year | 30 yr

Amortization Schedule

Quick summary of the most important loan metrics before you move into detailed analysis.

First Month

$1,896.20

Last Month

$1,896.20

Total Interest

$382,633.47

mo 1

Principal

$271.20

Interest

$1,625.00

Monthly Payment

$1,896.20

Ending Principal

$299,728.80

mo 2

Principal

$272.67

Interest

$1,623.53

Monthly Payment

$1,896.20

Ending Principal

$299,456.12

mo 3

Principal

$274.15

Interest

$1,622.05

Monthly Payment

$1,896.20

Ending Principal

$299,181.97

mo 4

Principal

$275.64

Interest

$1,620.57

Monthly Payment

$1,896.20

Ending Principal

$298,906.34

mo 5

Principal

$277.13

Interest

$1,619.08

Monthly Payment

$1,896.20

Ending Principal

$298,629.21

mo 6

Principal

$278.63

Interest

$1,617.57

Monthly Payment

$1,896.20

Ending Principal

$298,350.58

mo 7

Principal

$280.14

Interest

$1,616.07

Monthly Payment

$1,896.20

Ending Principal

$298,070.44

mo 8

Principal

$281.66

Interest

$1,614.55

Monthly Payment

$1,896.20

Ending Principal

$297,788.79

mo 9

Principal

$283.18

Interest

$1,613.02

Monthly Payment

$1,896.20

Ending Principal

$297,505.60

mo 10

Principal

$284.72

Interest

$1,611.49

Monthly Payment

$1,896.20

Ending Principal

$297,220.89

mo 11

Principal

$286.26

Interest

$1,609.95

Monthly Payment

$1,896.20

Ending Principal

$296,934.63

mo 12

Principal

$287.81

Interest

$1,608.40

Monthly Payment

$1,896.20

Ending Principal

$296,646.82

mo	Principal	Interest	Monthly Payment	Ending Principal
mo 1	$271.20	$1,625.00	$1,896.20	$299,728.80
mo 2	$272.67	$1,623.53	$1,896.20	$299,456.12
mo 3	$274.15	$1,622.05	$1,896.20	$299,181.97
mo 4	$275.64	$1,620.57	$1,896.20	$298,906.34
mo 5	$277.13	$1,619.08	$1,896.20	$298,629.21
mo 6	$278.63	$1,617.57	$1,896.20	$298,350.58
mo 7	$280.14	$1,616.07	$1,896.20	$298,070.44
mo 8	$281.66	$1,614.55	$1,896.20	$297,788.79
mo 9	$283.18	$1,613.02	$1,896.20	$297,505.60
mo 10	$284.72	$1,611.49	$1,896.20	$297,220.89
mo 11	$286.26	$1,609.95	$1,896.20	$296,934.63
mo 12	$287.81	$1,608.40	$1,896.20	$296,646.82

Download schedule

Financial Insights

Quickly see the effect of paying extra principal or changing the loan term.

First Month

$1.9 Thousand

Recommended Income

$8 Thousand

Debt-to-income ratio

23.7%

Risk level

Safe

Pay extra principal each month

If you add $600 to principal each month:

Potential interest savings

$196.7 Thousand

Possible term reduction

13.8 yr

Income-based risk check

The first payment uses about 23.7% of your monthly income.

Safe

Tip: keeping debt payments below about 40% of monthly income usually leaves more room in the budget.

Compare Common Loan Types

Each borrowing product has a different repayment structure, cost profile, and level of risk. Use this comparison to choose the right loan type before entering detailed numbers.

Mortgage

Long-term secured borrowing

5% - 8% APR

Best for

Home purchases and larger secured financing

Notes

Lower rates, but approval and closing requirements are stricter

Installment Loan

Fixed term with scheduled payments

6% - 12% APR

Best for

Vehicles, equipment, or medium-sized planned purchases

Notes

Affordable structure, but total interest still rises with longer terms

Personal Loan

Usually unsecured

10% - 24% APR

Best for

Fast access to funds for debt consolidation or urgent expenses

Notes

Higher rates and tighter payment pressure if income is unstable

Credit Card

Revolving balance

18% - 30% APR

Best for

Short-term spending that can be paid off quickly

Notes

Carrying a balance can become very expensive over time

Criteria	Mortgage	Installment Loan	Personal Loan	Credit Card
Interest Method	Amortized (Declining)	Flat Rate	Fixed / Adjustable	Revolving
Typical APR	5% - 8%	6% - 12%	10% - 24%	18% - 30%
Monthly Payment	Decreases over time	Level (Fixed)	Fixed then resets	Minimum due
Total Interest	Lowest overall	Moderate	Higher	Highest if not cleared
Typical Tenure	15 - 30 Years	3 - 7 Years	1 - 5 Years	Indefinite
Primary Use	Real Estate	Vehicles / Equipment	Debt Consolidation	Daily Expenses

Choose a mortgage when

You need a large loan, have collateral, and want the lowest sustainable long-term borrowing cost.

Consider a personal loan when

You need funds quickly, but can still keep the monthly payment comfortably within your income.

Avoid using credit cards as long-term debt when

You expect to carry the balance for many months, because revolving APR can become the most expensive option.

Rates and product features are illustrative only. Actual borrowing costs depend on your credit profile, lender policy, and current market conditions.

National Market Index Data

Loan Rates by Lender

Compare introductory and standard rates to evaluate the true borrowing cost more accurately.

Updated

Lender	Intro Rate	Standard Rate (Est.)	Term	Notes
Rocket MortgageBest Intro Rate	6.08%	6.50%	8 - 30 years	Fully online application process with highly customizable terms.	Calculate
Citi	6.11%	6.55%	15 - 30 years	Relationship pricing discounts available for existing banking customers.	Calculate
Bank of America	6.18%	6.45%	10 - 30 years	Specializes in first-time home buyer programs with low down payments.	Calculate
U.S. Bank	6.21%	6.65%	10 - 30 years	Offers great combination of low rates and digital mortgage experience.	Calculate
Chase Bank	6.23%	6.50%	15 - 30 years	Competitive fixed rates for 30-year mortgages.	Calculate
Wells Fargo	6.25%	6.60%	15 - 30 years	Strong presence in mortgage lending across all states.	Calculate