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RealCostIQ

Mortgage & Refinancing Guides

Loan-term and refinance decisions with real numbers — break-even math, total interest, and borrowing against equity.

Every mortgage decision below — term length, loan program, whether to refinance or tap equity instead — sits downstream of the same underwriting gate and the same fee-disclosure rules. Understanding those first makes the individual guides' math easier to trust.

6 published guides

Mortgages & RefinancingUpdated 2026-07-29

15 vs 30-Year Mortgage: A Real-Numbers Comparison

Both loans side by side at this week's Freddie Mac averages (6.58% and 5.96%) for three loan sizes — payment, total interest, and principal paid by years 5 and 10, with the amortization math shown — plus the invest-the-difference argument treated fairly.

Mortgages & RefinancingUpdated 2026-07-29

Is Refinancing Worth It? The Break-Even Math

Closing costs divided by monthly saving is the whole decision. The formula worked with July 2026 rates, the rate drop you need to break even in 2/3/5 years, the term reset that raises your total interest at a lower rate, and what forecasters actually expect.

Mortgages & RefinancingUpdated 2026-07-30

HELOC vs Cash-Out Refinance for Renovations

Why the higher-rate option is usually the cheaper one: a cash-out refinance reprices your whole balance, a HELOC prices only the new money. Worked with July 2026 rates, plus what IRS Publication 936 actually lets you deduct.

Mortgages & RefinancingUpdated 2026-08-19

80-10-10 Piggyback Loan vs. PMI: The Real Comparison

A piggyback is a second mortgage, not insurance — the actual comparison is a second-lien rate and term against a PMI premium and its legally required cancellation. Worked with August 2026 rate data from Bankrate and Freddie Mac.

Mortgages & RefinancingUpdated 2026-08-04

Pre-Approval vs. Prequalification

Prequalification is a self-reported estimate; pre-approval is a verified, documented commitment. What each requires and which one a seller's agent accepts.

Mortgages & RefinancingUpdated 2026-08-04

Should You Pay Off Your Mortgage Early?

Guaranteed return vs. expected return, the liquidity trade-off, the mortgage interest deduction in 2026, and where extra payments fit your priorities.

What underwriting actually tests

Under the CFPB's Ability-to-Repay rule, a lender has to evaluate eight specific factors before approving a loan: current or expected income and assets, employment status, the payment on this loan and any simultaneous loan, monthly mortgage-related obligations, existing debts and support obligations, the resulting debt-to-income ratio, and credit history — and it has to verify most of that against third-party records, not your say-so. "No-doc" loans are effectively prohibited. For a Qualified Mortgage, total monthly debt including the new housing payment generally can't exceed 43% of gross monthly income.

That's the same test regardless of whether you're buying, refinancing, or pulling equity out — a HELOC or cash-out refinance still runs through income and DTI verification, it's just measured against a smaller or larger new payment.

The fee categories under TRID

TRID — the TILA-RESPA Integrated Disclosure rule — governs the Loan Estimate and Closing Disclosure you receive on any of these transactions. Fees split into origination charges, services you can't shop for, services you can shop for, and other costs — and separately, into tolerance categories: some fees can't increase at all after the Loan Estimate without a valid change in circumstance, others can move but only within a cumulative 10% band, and a few (like property taxes or insurance) aren't capped at all because the lender doesn't control them.

The CFPB requires the lender to deliver your Closing Disclosure at least three business days before you actually close — a mandatory window built specifically so you can compare the final numbers against the original Loan Estimate and flag anything that moved before you're sitting at the closing table.

Loan-type decision framing

FHA loans require 3.5% down at a 580 credit score, or 10% down at 500–579, per HUD Handbook 4000.1. VA loans require no down payment and no monthly mortgage insurance, offset by a one-time funding fee of 0.5%–3.3% depending on down payment and prior use. USDA's guaranteed program backs 100% financing with no minimum credit-score floor in eligible rural areas, capped at 115% of area median income. Term and rate decisions run on top of whichever program you qualify for: Freddie Mac's Primary Mortgage Market Survey had the 30-year fixed at 6.65% and the 15-year at 5.95% for the week of August 20, 2026. Compare terms with the mortgage calculator and 15 vs 30-year mortgage calculator, or price a refinance or equity pull with the amortization calculator and HELOC vs. cash-out refinance calculator below.

Sources

  1. Consumer Financial Protection Bureau — Ability-to-Repay and Qualified Mortgage rule guidance — accessed 2026-08-25
  2. Consumer Financial Protection Bureau — "Your Loan Estimate" (TRID fee categories) — accessed 2026-08-25
  3. Consumer Financial Protection Bureau — "How long before closing must I receive the Closing Disclosure?" — accessed 2026-08-25
  4. HUD — Single Family Housing Policy Handbook 4000.1 (FHA minimum credit score and down payment) — accessed 2026-08-25
  5. U.S. Dept. of Veterans Affairs — "Loan Fees" (VA Home Loans) — accessed 2026-08-25
  6. USDA Rural Development — "Single Family Housing Guaranteed Loan Program" — accessed 2026-08-25
  7. Freddie Mac — Primary Mortgage Market Survey — accessed 2026-08-25

Other guide categories

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