The U.S. ability-to-repay rule requires a reasonable, good-faith determination that a consumer can repay a covered mortgage according to its terms.
The ability-to-repay rule (ATR rule) generally requires a U.S. mortgage creditor to make a reasonable, good-faith determination, before or when a covered loan is consummated, that the consumer can repay it according to its terms. The rule appears in Regulation Z, which implements the Truth in Lending Act.
ATR is an underwriting and documentation obligation, not a promise that the borrower will never default. It also is not a universal debt-to-income cutoff. The creditor must evaluate the required factors using verified information and the payment assumptions that apply to the loan.
Regulation Z Section 1026.43 covers many closed-end consumer mortgages secured by a dwelling. The section contains exclusions, including specified open-end credit plans, timeshare plans, reverse mortgages, and temporary or bridge loans. Other exemptions and special rules can apply.
| Question | Why it matters |
|---|---|
| Is the transaction consumer credit? | Business-purpose and consumer-purpose transactions can follow different rules |
| Is it secured by a dwelling? | ATR coverage is tied to the collateral and transaction type |
| Is the credit open-end or closed-end? | Home-equity lines and closed-end mortgages are not analyzed identically |
| Does an exclusion or exemption apply? | Reverse mortgages, temporary loans, refinancings, and certain creditors may have special treatment |
| When is the loan consummated? | The determination uses information known or reasonably expected at the relevant time |
Calling a product a mortgage, refinance, bridge loan, investment-property loan, or home-equity product does not settle coverage. The actual purpose, security interest, structure, and regulatory definitions matter.
For the general ATR method, the creditor must consider the factors specified in Section 1026.43(c). In practical terms, the file should address:
Considering a factor means more than placing a number in the file. The creditor’s method should show how the information affected the repayment analysis.
The creditor generally must verify income or assets relied on using reasonably reliable third-party records. Depending on the facts, records can include payroll statements, tax-return information, account records, benefit statements, employer records, or other documentation permitted by the rule and official interpretations.
Alternative documentation is not the same as no verification. A self-employed consumer, for example, may have income supported by business and bank records rather than a standard salary statement. The creditor still needs a reasonable method to determine whether that evidence supports repayment ability.
Creditors should retain the documents and calculations required by applicable recordkeeping rules. A later history of timely payments can be relevant evidence in some disputes, but it does not cure an unreasonable determination made from inadequate information at consummation.
The payment used for ATR analysis depends on the loan terms and applicable calculation rules. A creditor should not assume that the initial payment represents the consumer’s obligation over the relevant period.
For an adjustable-rate, step-rate, interest-only, balloon, or negative-amortization structure, review:
The contractual note, rate index, margin, caps, and payment schedule are better evidence than a marketing payment.
Assume a hypothetical borrower has gross monthly income of $8,000. The underwriting file shows:
| Monthly obligation | Amount |
|---|---|
| Mortgage principal and interest under the applicable payment calculation | $2,700 |
| Property tax, insurance, and association dues | $650 |
| Simultaneous home-secured loan | $300 |
| Other debt obligations | $600 |
| Total obligations used in this simplified example | $4,250 |
The illustrative debt-to-income ratio is $4,250 / $8,000 = 53.1%.
That ratio alone does not determine compliance or approval. The general ATR rule does not impose one universal DTI ceiling for every covered transaction, and a high ratio does not excuse the creditor from considering residual income, credit history, assets, payment shock, and other required information. The creditor must apply a reasonable, documented underwriting method to the actual loan.
If the creditor instead used a temporary introductory payment of $2,000 when the applicable rule required $2,700, the resulting analysis could understate repayment risk.
| Issue | General ATR determination | Qualified Mortgage route |
|---|---|---|
| Core question | Can the consumer reasonably repay this covered transaction? | Does the loan meet a defined QM category and its requirements? |
| Underwriting | Required factors, verification, and payment method | Category-specific underwriting plus product, term, fee, and other conditions |
| DTI | Consider DTI or residual income; no universal ATR cap | Current General QM uses a price-based framework rather than the former universal 43% DTI ceiling |
| Legal effect | Compliance assessed from the reasonable, good-faith determination | Provides a safe harbor or rebuttable presumption depending on the applicable rule |
| Noncompliance with QM criteria | Does not automatically mean the loan violates ATR | Means the loan is not that QM category; another ATR route may remain available |
This distinction prevents two common errors: treating every non-QM mortgage as unlawful, and treating QM status as proof that a loan is affordable for every borrower.
43% General QM threshold as a universal current ATR limit.This page provides general mortgage-regulation education, not lending, legal, compliance, credit, or housing advice. Rules, interpretations, thresholds, and exemptions can change; consult the current official text for a specific transaction.