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Both Vice President Kamala Harris and former President Donald Trump are rolling out ever-expanding lists of promises to voters — from making housing and health care more affordable to supporting manufacturers to providing tax relief to millions of Americans.

But those proposals come with high price tags, and candidates have not outlined how they would fully cover the costs, a new analysis shows. As a result, the national debt would rise by trillions of dollars regardless of who wins the election, further exacerbating the country’s budget problems.

Harris’ plan would increase the debt burden According to the Committee for a Responsible Federal Budget report released Monday, Trump’s platform would increase that amount by $7.5 trillion.

The watchdog group’s analysis is the latest in a series of assessments of the candidates’ plans, which generally find that Trump’s proposals would have a greater impact on the national debt than Harris’s.” The committee notes that its estimates contain a wide range of uncertainties and many assumptions, as neither candidate has made detailed proposals. The analysis is based on official campaign announcements and websites, white papers, social media posts, speeches, discussions with campaign staff, similar proposals in presidents’ budgets and other sources.

The commission provided a range of cost estimates in its analysis due to the lack of detailed platforms. It concluded that Harris’ actions could not have a significant impact on the debt or increase it by $8.1 trillion. And Trump’s proposals could increase debt by between $1.5 trillion and $15.2 trillion. It is also difficult to determine how Americans and companies could do that change their behavior if this policy were to have an effect. Nearly all require congressional approval.

Neither Harris nor Trump have talked about reducing the country’s heavy debt burden, even though both Republicans and Democrats in Congress have repeatedly said they want to rein in the debt, which currently stands at $35.7 trillion. But the federal government continues to spend more money than it brings in revenue, causing debt to continue to rise rapidly. A slew of experts, including Federal Reserve Chairman Jerome Powell, have said the country is on an unsustainable fiscal path.

“We are already spending more on it interest than on Medicare and defense, and these high debts are basically crowding out everything else,” Marc Goldwein, the commission’s senior policy director, told CNN. “It crowds out private sector investment, which means we have less economic growth. It crowds out public sector spending, leaving us less room to pay for our other priorities.”

The most expensive item on the vice president’s platform is expanding the Tax Cuts and Jobs Act provisions of 2017 to include those making less than $400,000 a year — which the committee estimates would cost $3 trillion. The law’s individual income and estate tax provisions expire at the end of 2025.

That will be followed by expanding the child tax credit and the income tax credit, which come with a price tag of $1.4 trillion, and expanding the Affordable Care Act’s enhanced premium subsidies, which will add $550 billion.

The committee also included Harris’ proposals to support affordable housing, manufacturers and small businesses; eliminating taxes on tips; improving border security; and strengthening education and the healthcare economy, including establishing a national paid family and medical leave program. These proposals would cost a total of $2.3 trillion.

(For some of these items, the committee used measures from the Biden administration’s budgets and packages as models, as Harris did not reveal more detailed policies.)

Harris would partially offset the cost of her platform by raising corporate tax and capital gains rates to 28% each, and raising other taxes on wealthier Americans and large corporations — though these measures are not expected to fully foot the bill. The committee assumes she will propose many of the revenue-raising provisions in President Joe Biden’s budget, as her campaign has said she supports them.

The former president wants to extend virtually all provisions of the 2017 tax cut law, one of the major achievements of his first term. But he would increase the price tag with certain other measures, such as eliminating the $10,000 limit on state and local tax deductions and restoring the ability for companies to immediately deduct investments in equipment and research. All in all this would cost almost $5.4 trillion.

Trump has also promised to end taxes on tips, overtime and Social Security benefits, and to lower the corporate tax rate for domestic manufacturers to 15%. These measures would reduce revenues by $3.8 trillion.

Also on the committee’s list are strengthening the military, securing the border and deporting unauthorized immigrants, enacting housing reforms and providing more support for health care, long-term care and assisted living.

Trump has repeatedly said that the new tariffs he wants to impose are 10% 20% on every foreign import entering the US, and another tariff of more than 60% on all Chinese imports – would pay for his proposals.

But the commission estimates that these tariffs would raise between $2 trillion and $4.3 trillion over the next decade — not enough to cover Trump’s agenda.

Plus, there would be trade-offs. Most economists agree that tariffs would increase the prices Americans pay for imported goods. That’s because it’s usually an American company that imports the good and pays the tariff. The costs can then be passed on to the consumer.

According to the Peterson Institute for International Economics, an across-the-board tariff of 10% with a 60% tariff on Chinese-made goods would cost the average middle-class household about $1,700 a year. And the Tax Policy Center said the impact could be $1,350 a year for middle-income households.

Another compromise could be retaliatory tariffs. Analysts say other countries would almost certainly impose their own tariffs on U.S. products. A trade war could slow the U.S. economy, suppressing the amount of revenue the government brings in.

Trump has also pledged to expand energy production, eliminate the Department of Education and root out waste, fraud and abuse. These measures would raise or save nearly $1.1 trillion, the committee found.

CNN’s Katie Lobosco and Matt Egan contributed to this report.