Treasury head Reeves has announced she is planning "focused steps to deal with household expense challenges" in next month's financial statement.
Speaking to media outlets, she stated that curbing price rises is a shared task of both the government and the central bank.
The UK's inflation rate is expected to be the highest among the G7 advanced economies this calendar year and next.
Sources suggest the government could intervene to lower utility costs, such as by cutting the present 5% level of VAT charged on energy supplies.
A further option is to reduce some of the government charges currently included in household expenses.
The administration will obtain the next assessment from the independent fiscal watchdog, the OBR, on Monday, which will clarify how much space there is for such actions.
The view from most experts is that the Chancellor will have to declare higher taxes or expenditure reductions in order to fulfill her voluntary borrowing rules.
Earlier on Thursday, calculations showed there was a ÂŁ22 billion deficit for the Treasury chief to fill, which is at the more modest range of projections.
"There's a collective task between the central bank and the government to bear down further on some of the sources of inflation," Reeves informed reporters in the US capital, at the conferences of the International Monetary Fund and World Bank.
While much of the attention has been on expected tax increases, the Treasury chief said the most recent data from the OBR had not altered her vow to election pledges not to raise tax levels on income tax, VAT or social security contributions.
She attributed an "unpredictable global environment" with rising international and trade concerns for the Budget tax moves, likely to be focused on those "most able to pay."
Addressing apprehensions about the United Kingdom's economic relations with the Asian nation she said: "The UK's national security always take priority."
Last week's statement by Chinese authorities to strengthen trade restrictions on rare earths and other resources that are essential for advanced tech manufacturing led American leader Donald Trump to threaten an further 100% import tax on goods from China, increasing the possibility of an all-out commercial conflict between the two largest economies.
The American finance chief labeled the Chinese move "commercial pressure" and "a international production control attempt."
Asked about accepting the American proposal to join its dispute with the Asian nation, Reeves said she was "extremely troubled" by Chinese measures and encouraged the Beijing authorities "to avoid restrictions and restrict access."
She said the decision was "bad for the world economy and generates additional obstacles."
"I believe there are fields where we must confront China, but there are also significant opportunities to export to Chinese markets, including financial services and other sectors of the economic system. We've got to get that equilibrium appropriate."
The Treasury chief also affirmed she was collaborating with G7 counterparts "regarding our own critical minerals plan, so that we are reduced dependence."
The Chancellor also admitted that the cost the NHS spends on drugs could go up as a result of ongoing talks with the US government and its drugs companies, in exchange for lower tariffs and funding.
A number of the world's largest drug companies have said recently that they are either delaying or scrapping projects in the UK, with several blaming the modest returns they are obtaining.
Recently, the government science advisor said the price the health service spends on drugs would need to rise to halt firms and drug research funding leaving the United Kingdom.
The Chancellor told media: "It has been observed because of the payment system, that drug testing, innovative medicines have not been provided in the UK in the extent that they are in other European countries."
"We want to make sure that individuals receiving care from the NHS are able to receive the top life-saving treatments in the world. And so we are looking at these issues, and... looking to secure additional funding into Britain."