Policymakers view the reporting of an on-time pattern as a way to reduce disparities in homeownership.About a third of American households rent, yet in most cases their credit score doesn’t reflect their on-time payments.That’s beginning to change. Renters can increasingly choose to have their timely monthly payments reported to the credit bureaus, with the goal of improving their credit profile to qualify for loans.A bevy of third-party services now offer consumers the option of having their on-time rent payments reported to one or more credit bureaus. The bureaus — Equifax, Experian and TransUnion — can add rent payments to loan data to enhance the credit reports and credit scores that lenders use to evaluate potential borrowers.The services typically report only on-time payments, but consumer experts recommend checking the details first. The reporting of late payments, such as when tenants withhold rent to protest their living conditions, may be a drawback to enrolling, consumer experts say.Zillow, the real estate website, became the latest entrant in the rent-reporting market this month. Some options, like Zillow’s, are available to renters whose landlords or property managers use the company’s rental management system to process payments. Others, like the service offered by Self Financial, are available directly to renters.As it stands, few landlords routinely report rent payments to credit bureaus. Traditionally, only lenders have reported to the bureaus, and rent isn’t considered a loan. Fewer than 5 percent of the roughly 80 million adults who live in rental housing had rental data in their credit files, and it was mostly negative data from missed payments, according to the Urban Institute, a nonprofit research group focused on advancing upward mobility and equity. (Negative rent information can end up in credit files if a landlord reports delinquent accounts or sends them to a collection agency.)But in recent years, policymakers have been exploring whether consumers can benefit from having on-time rent payments included in credit scores, just as payments for mortgages, car loans and credit cards are. Reporting on-time rent payments is viewed as a way to reduce disparities in homeownership.Fannie Mae, the quasi-governmental home finance giant, began a pilot program in 2022 using three financial technology companies that report on-time payments from thousands of renters in multifamily buildings to the credit bureaus. Fannie Mae reported in November that its data “shows a trajectory toward better financial health for many renters.” Well over half the participants increased their credit scores. Those who already had a credit score, and saw an improvement, had an average increase of about 40 points. (Scores range from 300 to 850.) The pilot has been extended to the end of this year.TransUnion has been able to include rent payments in its credit reports since 2016 and has seen increasing interest from property managers, said Maitri Johnson, vice president of tenant and employment screening at the credit bureau. The company’s data show that rent reporting is particularly helpful to consumers who were “unscorable,” meaning they had no or little credit history, Ms. Johnson said.Ariel Nelson, a staff attorney with the National Consumer Law Center, said consumers should be cautious. Reporting on-time payments can make sense, she said, for people who are able to consistently pay on time and may be renting temporarily while saving to buy a home.But there can be risks, particularly for lower income tenants who may struggle to pay on time, she added. If a tenant opts into reporting and pays on time for several months but then hits a rough patch and falls behind, the late payment isn’t reported. But lenders might interpret the absence of rental information on the credit report for a month or two as a negative, Ms. Nelson said.(Fannie Mae said that separate from the pilot, lenders could use its automated underwriting system to supplement their credit evaluations of first-time home buyers by including rent data, and that missing rent payments weren’t counted against the borrower.)The general industry approach so far is to give renters a choice about whether to have their payments regularly reported, and to report only on-time payments.As the practice becomes more widespread, landlords could eventually require reporting of rent to credit bureaus, Ms. Johnson said. The requirement would probably be disclosed during the negotiation of the lease agreement.The reporting of negative information could affect tenants who might want to withhold rent as a way to force landlords to maintain or repair buildings, Ms. Nelson said. If landlords report the withheld payments, tenants may feel pressured to pay to avoid harming their credit. A recent news report suggested that has happened in New York City.Zillow’s service deems payments on time if they are received within 30 days of the due date, said Amy Wipfler, senior product manager for social impact at the company. Payments made after that aren’t reported. The new service is available to “tens of thousands” of renters, she said.Currently, Zillow’s service reports just to Experian. If a participant applies for a loan with a lender that uses one of the other credit bureaus, the positive rent payments won’t have an impact. Zillow aims to add the other credit bureaus, Ms. Wipfler said. (Other services, like Esusu and Self Financial, report to all three.)Here are some questions and answers about using rent payments to help credit scores:Are all credit scoring systems able to factor in rent payments?No. Only the latest, but not yet widespread, versions of credit scoring systems from FICO, the data analytics company, can incorporate rent data, said Ethan Dornhelm, the company’s vice president for scores and predictive analytics. The FICO 8 version, an older but widely used model, cannot factor in rents, he said. All versions of VantageScore, a scoring model owned by the major credit bureaus, are able to factor in rent payments, a spokeswoman, Sarah Cain, said in an email.Is there a charge for rent reporting services?That varies. Some services are free for both landlords and tenants, while others may charge one-time or monthly fees. (Some are free for new rental payments but charge for reporting prior rental history.) It may not be worthwhile for consumers who already have top-tier credit scores to have their rent reported, since they would probably see incremental benefits from an even higher score, Ms. Johnson at TransUnion said.What are other ways to build credit?Options for building credit if you have a scant credit file or marred credit include opening a “secured” credit card. You typically make a deposit and get a line of credit up to that amount, and your payment history is reported to the credit bureaus. Some community banks and credit unions offer “credit builder” loans. The money you borrow is held in a bank account while you make payments, which are reported to credit bureaus. Once you have paid the loan amount, you get access to the funds. More