WASHINGTON - A majority of Americans with 401(k)-type savings accounts are accumulating debt faster than they are setting aside money for retirement, further undermining the nation's troubled system for old-age saving, a new report has found.

WASHINGTON — A majority of Americans with 401(k)-type savings accounts are accumulating debt faster than they are setting aside money for retirement, further undermining the nation’s troubled system for old-age saving, a new report has found.

Three in five workers with defined-contribution accounts are “debt savers,” according to the report released yesterday, meaning their increasing mortgages, credit-card balances and installment loans are outpacing the amount of money they are able to save for retirement.

The imbalance is expanding even as policymakers are encouraging people to set aside more by offering generous tax breaks and automatically enrolling workers in retirement accounts that, in some cases, automatically escalate the amount of money over time.

Now, workers with retirement savings accounts put aside more than 11 percent of their pay for retirement — 5 percent in their own accounts, and 6.2 percent in Social Security.

Despite that — and despite the $2.5 trillion the report says employers poured into defined-contribution accounts from 1992 to 2012 — the retirement readiness of most Americans has been slipping, according to the report by HelloWallet, a District of Columbia firm that offers technology-based financial advice to workers and conducts research of economic behavior.

“Policy has tunnel vision. It tends to tackle problems on a piecemeal basis,” said Matt Fellowes, founder and chief executive of HelloWallet and a former Brookings Institution scholar. “ The impact of policy on consumer finances is a bit like playing a game of Whac-A-Mole. We raised the victory flag as people increased retirement contributions, but in reality the ability of people to retire is a function of lots of different variables, most important of which is what they are doing on the other side of the ledger.”

The HelloWallet report is the latest in an expanding line of research suggesting that the United States is facing a looming retirement-security crisis. A growing number of researchers are concerned that the nation is on the cusp of a shift in which more Americans are on a track that will lead to a decline in their living standards when they retire.

The report says that debt is among the biggest culprits. The amount of money that households nearing retirement are dedicating to pay down debt has risen 69 percent in the past two decades, the report said. Households headed by people ages 55 to 64 now spend 22 cents of each dollar to pay off old loans — about the same percentage as younger people, the report found.

The problem is not confined to the poorest Americans, many of whom have no retirement savings. Most of the people with accounts who are accumulating debt faster than retirement savings are older than 40, college-educated and earning more than $50,000 a year, the report said.