The days are cumulative, which is the arithmetic almost nobody expects. Delinquency is not measured from the most recent missed payment. It is measured from the oldest unpaid contractual due date, so shortfalls add up. The interagency standard that examiners work from, the Uniform Retail Credit Classification and Account Management Policy published at 65 FR 36903 on June 12, 2000, sets out the two methods an institution may use for partial payments. It may treat "a payment equivalent to 90 percent or more of the contractual payment" as a full payment in computing past-due status. Or it may aggregate what has been received and give credit for the partial payments, and the policy gives its own illustration: where a regular installment is $300 and the borrower pays $150 a month for six months, "the loan would be $900 ($150 shortage times six payments), or three full months past due." An institution may use either or both methods across its portfolio, but not both on a single loan.
The classification ladder built on those days is supervisory, not consumer-facing, and reading it as a set of consumer rights is a mistake. The same policy directs that "open- and closed-end retail loans past due 90 cumulative days from the contractual due date should be classified Substandard," a regulatory grade meaning the loan carries a well-defined weakness that jeopardizes repayment. Further along, closed-end retail loans at 120 cumulative days and open-end accounts at 180 are classified Loss and charged off, which the charge-off page takes in full. None of this is a statute or a consumer-protection rule. It is guidance from the federal banking agencies to the institutions they supervise about how to grade and write down their own assets, and its dates are outer limits rather than entitlements. The National Credit Union Administration did not adopt it, so it does not reach credit unions on its own terms.
Home-secured loans are graded differently, and the reason is the collateral. Under the same policy, one- to four-family residential real estate loans and home equity loans that are 90 days or more past due are classified Substandard where the loan-to-value ratio exceeds 60 percent, and a properly secured residential loan at 60 percent or less is generally not classified on the basis of delinquency alone. That relief carries its own carve-out: a home equity loan at an institution that does not hold the senior mortgage is classified Substandard once it is 90 days or more past due even where the ratio is 60 percent or less. There is also a broader exception: where an institution can document that a past-due loan is well secured and in the process of collection, meaning a collection effort or legal action is proceeding and is reasonably expected to recover the balance or restore the account, generally within the next 90 days, the loan need not be classified at all.
Re-aging is the route back, and it belongs to the creditor. A delinquent revolving account can be returned to current status without the borrower paying everything contractually due. The policy calls this a re-age and conditions it: the borrower must have demonstrated a renewed willingness and ability to repay, the account must have existed for at least nine months, and the borrower must have made at least three consecutive minimum monthly payments or the equivalent cumulative amount, with the institution expressly forbidden from advancing funds for that purpose. An open-end account should not be re-aged more than once in any twelve-month period and no more than twice in any five-year period, and the policy notes that some institutions allow only one re-age in an account's lifetime. A separate allowance applies to accounts entering a workout or debt management plan, which the debt management plan page covers.
Two cautions about re-aging matter more than the conditions. It is discretionary supervisory guidance rather than a borrower's right, so there is nothing to demand and no procedure to invoke. And an institution that re-ages an account changes what it reports going forward; it does not erase the delinquency that already reached the credit file. What happens to that record, including the date the delinquency began and how long the item may be reported, is the subject of the credit report page.