@itsjontaw — Mortgage Broker
Calculators

RUN THE NUMBERS.

Then run them again.

Five free calculators. Built clean - no email gates, no upsells, no fine-print rate teases. When you're ready for real numbers, book a call.

Built by a real broker, not a lead-gen funnel
Mortgage paymentLive · PITI
$3,264/mo

Principal, interest, taxes & insurance.

Home price$450,000
Down payment10%
Rate6.75%
No email gate. No upsell.Full calculator →
01 - Mortgage payment

MORTGAGE PAYMENT CALCULATOR.

Move the sliders. The number on the right is your full monthly - principal, interest, taxes, and insurance. No "starting at" gotchas.

Mortgage payment

What's it really cost?

Move the sliders. The number on the right is your full monthly - PITI.

$420,000
10%
6.875%
Your full monthly
$3,078 / mo
  • Principal & interest$2,483
  • Taxes & insurance (est)$595
  • Loan amount$378,000

Illustrative only. Taxes estimated at 1.3% of price annually, insurance at 0.4%. Actual rates depend on credit, income, property, and lender. Run real numbers in a 15-min call.

How this calculator works

Most mortgage calculators show P&I - Principal and Interest. That's the number banks advertise because it's lowest. The number that actually leaves your account is PITI: Principal, Interest, Taxes, and Insurance.

This calculator estimates property tax at 1.3% of price annually and homeowners insurance at 0.4%, both national averages. Your actual numbers depend on the property's county and condition.

It does not include PMI (if your down payment is below 20% on a conventional loan), HOA dues, or flood insurance. We sort those out on the call.

Principal, Interest, Taxes, Insurance. It's your real full monthly payment - not the bank's quoted P&I.

Banks quote P&I to look competitive. We quote PITI because that's what actually leaves your bank account every month.

No. PMI applies if you put less than 20% down on a conventional loan. Run real numbers with me to get your specific PMI number.

No - HOA varies by property. Add ~$0–500/mo if applicable to your target neighborhood.

Within 5–10% of your real payment. We get closer when we use your specific property's actual tax and insurance numbers.

02 - Affordability

HOW MUCH HOME CAN I AFFORD?

Lenders divide your monthly debt by your monthly income. Hit "back-end DTI" too high and the file dies. Move the sliders to find your real ceiling.

Affordability

How much home can I afford?

$100,000
$500
$20,000
6.875%
36%
You can afford a home up to
$400,559
  • Max monthly mortgage payment$2,500
  • Max loan amount$380,559
  • Down payment$20,000

Rough estimate. Doesn't include PITI (taxes + insurance), PMI, HOA dues, or specific lender overlays. Conventional lenders typically cap at 43% DTI, but I work with programs that go higher. Run real numbers on a 15-min call.

How this calculator works

The math: monthly income × DTI cap = max monthly debt. Subtract your existing monthly debt payments and you're left with your max mortgage payment. Back into the loan amount from there.

Conventional underwriting typically caps back-end DTI at 43–45%. FHA goes higher. Many Non-QM programs accept 50%+. The right program depends on what your file actually looks like.

This estimator ignores PITI extras (taxes + insurance) for simplicity. Your real max price is somewhat lower. Real numbers happen on the 15-min call.

Front-end DTI = housing payment ÷ income. Back-end DTI = all monthly debt (housing + cards + auto + student) ÷ income. Lenders look at both.

Conventional caps near 43–45%. FHA can go to 50%+. Many Non-QM programs accept 50%+. The right program depends on your file.

This estimator uses P&I to keep things simple. Your real max purchase price is lower once taxes and insurance are factored in. We do that on the 15-min call.

Conventional uses 2-year average from tax returns. Bank Statement uses deposits. P&L-Only uses CPA P&L. The choice changes what you qualify for.

Often yes - Non-QM programs are more flexible. The math here doesn't catch those nuances. Worth a real conversation.

03 - Rent vs Owning

RENT VS OWNING CALCULATOR.

Five years of rent or five years of equity? Honest comparison - including opportunity cost on your down payment.

Rent vs owning

Five years of rent - or five years of equity?

$2,200
$400,000
10%
6.875%
Over 7 years
You'd save $21,110 by owning
  • Total cost of renting$202,289
  • Net cost of owning$181,179
  • Includes 7%/yr opportunity cost on down payment

Assumes 3% rent increases, 3% home appreciation, 1.3% property tax, 0.4% insurance, 1% maintenance, 7% investment return on down payment if invested instead. Your numbers will vary. Run them with me on a 15-min call.

How this calculator works

We project rent year-over-year at 3% inflation and total what you'd pay over the time horizon. Then we model owning the same period - full PITI plus 1% maintenance - and subtract equity built and home appreciation from total cost.

Then the honest part: we add the opportunity cost on the down payment. If you'd invested it at 7%, that money would have grown. Real comparisons include this.

Numbers swing hard with assumptions. This is directional. Your situation is specific.

3% rent inflation, 3% home appreciation, 1.3% property tax, 0.4% insurance, 1% maintenance, 7% opportunity cost on the down payment if you'd invested it instead.

Short time horizons (under 3 years), declining home values, very high HOA/maintenance costs, or markets where rent is dramatically below ownership cost.

Because your down payment isn't free. If you'd invested it at 7%, that money would have grown. Honest comparison includes that.

Mortgage interest deduction can help, but with the higher standard deduction most buyers don't itemize. We don't include it here to keep the math conservative.

No. This is directional. Your situation is specific. Run real numbers with me - and a CPA for tax pieces.

04 - For investors

DSCR CALCULATOR.

Debt-Service Coverage Ratio. Drop in the rent, the price, and the financing - see live whether the property cash-flows at a lendable ratio.

DSCR calculator

Run your deal.

Debt-Service Coverage Ratio = monthly rent ÷ total monthly debt service (PITI + HOA).

$2,500
$350,000
25%
7.500%
$350
$125
$0
Your DSCR
1.08
  • StatusThis property cash-flows.
  • Monthly P&I$1,835
  • Total monthly debt service$2,310
  • Monthly rent$2,500

DSCR requirements vary lender-to-lender. Most want 1.0+. Some go to 0.75 with higher down payment + reserves. Sub-1.0 ratios are doable with the right lender - I shop all of them.

05 - For the self-employed

BANK STATEMENT INCOME.

See your qualifying income from 12 months of business deposits - the way a Non-QM underwriter actually counts it.

Bank statement income

See what you qualify for.

Bank Statement loans qualify on deposits, not tax returns. Lower expense ratio = more qualifying income.

$300,000
50%
Your qualifying income
$12,500 / mo
  • Qualifying annual income$150,000
  • Estimated max loan @ 36% DTI$643,579

Illustrative only. Actual qualifying income depends on lender, expense ratio method, statement type (business vs personal), and reserves. I'll run your real bank statements through the right lender on a 15-min call.

It's not if - it's when

Let's talk.
Fifteen minutes.

Bring me your file - even if three other brokers said no. We'll run the numbers, structure it right, and figure out the path. No pressure, no script.

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Full secure application in ~12 minutes and document submission, if turned in before 12pm. I'll have a pre-approval letter in your inbox tomorrow morning.

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JT

Jon Taw · Mortgage Broker & Advisor

NMLS #2607503 · Last updated May 2026