Ability-to-Repay and Qualified Mortgages: ATR/QM on the SAFE Exam

The Ability-to-Repay rule is the federal answer to the no-doc and stated-income lending that fed the 2008 crisis. Congress wrote it into the Truth in Lending Act through the Dodd-Frank Act, and the CFPB implemented it in Regulation Z at 12 CFR 1026.43, effective January 10, 2014. The same rule defines the Qualified Mortgage (QM), the loan category that gives a creditor legal protection when it follows a set of product limits. On the SAFE MLO National Test with UST, ATR/QM lives in Federal Mortgage-Related Laws (about 24% of the exam), and it bleeds into Mortgage Loan Origination Activities (about 27%) whenever a stem asks what an MLO must collect, verify, or calculate.

This guide covers what the rule applies to, the eight underwriting factors, how the payment is calculated, what makes a loan a QM, safe harbor versus rebuttable presumption, prepayment penalties, record retention, and the DTI math you should be able to do quickly.

What the ATR rule requires

The core requirement is one sentence: a creditor may not make a covered mortgage loan unless it makes a reasonable and good faith determination, at or before consummation, that the consumer has a reasonable ability to repay the loan according to its terms. Two words matter on the exam. Reasonable means the decision has to be based on real information, not a guess. Verified means the creditor must check that information against reasonably reliable third-party records, such as W-2s, tax returns, payroll statements, bank or brokerage statements, and a credit report.

ATR is an underwriting rule, not a disclosure rule. That is the easiest way to keep it separate from the rest of TILA. APR, finance charges, advertising triggers, and rescission are about telling the borrower what the credit costs. ATR is about whether the loan should be made at all.

Which loans are covered, and which are not

ATR applies to closed-end consumer credit secured by a dwelling. That includes purchase loans and refinances, first and subordinate liens, and loans on a principal residence, second home, condo, co-op, or manufactured home. It is not limited to the borrower's principal dwelling.

The exemptions are a favorite source of questions. ATR does not apply to:

Home equity lines of credit (HELOCs), because they are open-end credit
Reverse mortgages
Timeshare plans
Temporary or bridge loans with a term of 12 months or less
The construction phase of a construction-to-permanent loan, when that phase is 12 months or less
Credit primarily for business purposes, which includes most loans to buy or improve rental property the borrower will not occupy

Certain creditors and programs, such as housing finance agencies and some nonprofit and community development lenders, also have exemptions. At exam level, the HELOC, reverse mortgage, timeshare, and short-term bridge exemptions are the ones to memorize.

The eight underwriting factors

Under the general ATR standard, the creditor must consider and verify these eight factors:

Current or reasonably expected income or assets (other than the value of the property securing the loan)
Current employment status, if the creditor relies on employment income
The monthly payment on the loan being made
The monthly payment on any simultaneous loan the creditor knows about, such as a piggyback second
Monthly mortgage-related obligations, such as property taxes, homeowners insurance, HOA dues, and mortgage insurance
Current debt obligations, alimony, and child support
The monthly debt-to-income ratio or residual income
Credit history

Two traps hide in that list. First, the value of the home is excluded from the income-or-assets factor. A loan that can only be repaid by foreclosing on the collateral is exactly what the rule was written to stop. Second, any answer choice that lists a protected characteristic, such as age, marital status, or national origin, as an ATR factor is wrong. Those belong to ECOA, and a creditor may not use them the way a stem might suggest.

How the payment is calculated

The creditor cannot qualify the borrower on a teaser payment. For the general ATR standard, the monthly payment is based on the greater of the fully indexed rate or any introductory rate, using monthly, fully amortizing payments that are substantially equal. The fully indexed rate is the index value at consummation plus the margin.

Example: an adjustable-rate loan starts at 5.50%. The index is 4.25% and the margin is 2.50%, so the fully indexed rate is 6.75%. For ATR, the creditor qualifies the borrower using a fully amortizing payment at 6.75%, not 5.50%. Interest-only and negative-amortization loans get similar treatment: the creditor has to look past the low early payment to the payment the borrower will actually face.

Exam shortcut: ATR asks whether this borrower can repay this loan. QM is the set of product limits that earns the creditor a presumption that it got the ATR decision right.

What makes a loan a Qualified Mortgage

A Qualified Mortgage is a loan that meets product and underwriting limits set by the rule. In return, the creditor receives a presumption that it complied with ATR. The general QM product limits are the ones the exam tests most:

No negative amortization
No interest-only payments
No balloon payment (with a narrow exception for certain small creditors)
A loan term of no more than 30 years
Points and fees capped, generally at 3% of the total loan amount, with higher caps for smaller loans; the dollar thresholds adjust every year

The creditor must also consider and verify income or assets, debts, and DTI or residual income. For a QM, an adjustable-rate payment is underwritten using the maximum rate that can apply during the first five years after the first regular payment is due.

The 43% DTI question. When QM launched, the General QM definition included a 43% maximum debt-to-income ratio, and many older study materials still teach that number. The CFPB replaced the 43% cap with a price-based test. Mandatory compliance with that change began October 1, 2022. Under the current General QM definition, a first-lien loan generally qualifies only if its APR exceeds the Average Prime Offer Rate (APOR) for a comparable transaction by less than 2.25 percentage points, with higher limits for smaller loans and subordinate liens. Creditors still have to consider and verify DTI or residual income. If a question describes the original QM rule, 43% is the expected answer. If it asks about the current General QM test, think price compared to APOR.

Two other QM categories are worth recognizing by name. A small creditor QM lets qualifying small lenders that hold loans in portfolio make QMs without a specific DTI limit, and in some cases balloon-payment QMs in rural or underserved areas. A seasoned QM is a first-lien, fixed-rate loan held in portfolio that earns safe harbor status after 36 months if it has no more than two delinquencies of 30 days or more and none of 60 days or more.

Safe harbor versus rebuttable presumption

Not every QM gets the same protection. The dividing line is price.

Safe harbor QM: a first-lien QM whose APR exceeds APOR by less than 1.5 percentage points (less than 3.5 points for a subordinate lien). The creditor is conclusively presumed to have complied with ATR.
Rebuttable presumption QM: a higher-priced QM, at or above those spreads. The creditor is presumed to have complied, but the borrower can rebut the presumption by showing the creditor did not make a reasonable determination, for example because the borrower's income left too little to cover living expenses after the mortgage and other debts.

A loan that is not a QM is not illegal. A non-QM loan can still be made if the creditor satisfies the general ATR standard. It simply does not get the presumption, so the creditor carries more legal risk.

Prepayment penalties

The ATR rule also limits prepayment penalties on covered loans. A prepayment penalty is allowed only on a QM that is fixed-rate or step-rate and is not higher-priced. Even then, the penalty is capped on a sliding scale: no more than 3% of the prepaid balance during the first year, 2% during the second year, and 1% during the third year, with no penalty after the third year. A creditor that offers a loan with a prepayment penalty must also offer the consumer an alternative loan without one.

Adjustable-rate loans and higher-priced loans cannot carry a prepayment penalty under this rule. If a stem pairs an ARM with a prepayment penalty, the answer is almost always that it is not permitted.

Records and liability

A creditor must keep evidence of compliance with the ATR rule for three years after consummation. That includes the income, asset, employment, and credit documentation used to make the decision.

When a creditor violates ATR, the borrower can sue under TILA. The general time limit for that claim is three years. A borrower can also raise an ATR violation as a defense in a foreclosure action, by recoupment or setoff, without that three-year limit. That defense is why investors care so much about QM status.

DTI math you should be able to do

DTI questions show up in Mortgage Loan Origination Activities and General Mortgage Knowledge. Use gross monthly income, not take-home pay.

Housing ratio (front-end): total monthly housing payment divided by gross monthly income. The housing payment includes principal, interest, taxes, insurance, and any HOA dues and mortgage insurance.
Total DTI (back-end): housing payment plus recurring monthly debts, divided by gross monthly income.

Example: a borrower earns $72,000 a year, or $6,000 a month gross. The proposed housing payment is $1,500. The borrower also pays $400 a month on a car loan and a $200 minimum on a credit card. The housing ratio is $1,500 / $6,000 = 25%. The total DTI is ($1,500 + $400 + $200) / $6,000 = $2,100 / $6,000 = 35%.

Watch for distractors. Utilities, groceries, and car insurance are not counted as debts in the ratio. A monthly figure that is really an annual figure, or a net-pay figure presented as income, is usually the trick in a math stem.

How the exam baits ATR/QM items

Is the loan even covered? A HELOC, reverse mortgage, timeshare, or 12-month bridge loan is outside ATR.
Does the answer use the home's value as a way to repay? That is not an acceptable ATR basis.
Was the borrower qualified on a teaser rate? General ATR uses the greater of the fully indexed rate or the introductory rate.
Does the loan have interest-only payments, negative amortization, a balloon, or a term over 30 years? Then it is not a General QM.
Is the question about protection level? Not higher-priced means safe harbor. Higher-priced means rebuttable presumption.
Is a prepayment penalty attached to an ARM or a higher-priced loan? Not allowed.
Does the stem ask how long to keep ATR records? Three years after consummation.

Federal Mortgage-Related Laws is about 24% of the national test, and ATR/QM sits next to TILA, TRID, RESPA, and ECOA in that domain. The test has 120 items (115 scored) in a 190-minute window inside a 225-minute appointment, and you need 75% to pass. A one-time $99 unlock of MLO Pass gives you about 1,154 questions across all five domains: Mortgage Loan Origination Activities 27%, Federal Mortgage-Related Laws 24%, General Mortgage Knowledge 20%, Ethics 18%, and Uniform State Content 11%. Pay once and keep it. There is no subscription.

Practice this on MLO Pass

Drill the exemption list, the eight factors, QM product limits, and DTI math until you can sort each stem in a few seconds. Sign up to pass your test

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