WASHINGTON — President-elect Joseph R. Biden Jr. on Thursday is anticipated to stipulate proposals for trillions of {dollars} in authorities spending to fight the coronavirus pandemic and its results on the economic system, with an preliminary deal with large-scale expansions of the nation’s vaccination program and virus testing capability.

Mr. Biden will element his plans, which he and his financial staff have been honing for weeks, in a night speech in Delaware. The efforts will cowl the pandemic, the economic system, well being care, training, local weather change and different home priorities, Brian Deese, the incoming director of the Nationwide Financial Council, stated on the Reuters Next conference on Wednesday. Prime Democrats in Congress have stated in latest days that they’re making ready for the efforts to span two payments.

“At this second the president-elect feels that we have to transfer aggressively on each rescue and restoration,” Mr. Deese stated.

Cash to finish $2,000 direct funds to people and support to small companies and native and state governments, elements that Mr. Biden has confused in latest weeks, will probably be a part of the preliminary bundle, Mr. Deese stated. Others briefed on Mr. Biden’s pondering stated he would additionally name for the primary piece of laws to incorporate an extension of supplemental federal unemployment advantages, that are set to run out in March for a lot of staff, and extra assist for renters.

Plans for the primary bundle additionally embody a big improve in spending on vaccine deployment, testing and speak to tracing, Mr. Deese stated, and Mr. Biden will search sufficient cash to permit most faculties to open, in an effort to extend labor pressure participation.

“We have to get the colleges open,” Mr. Deese stated, “so that folks, and significantly girls, who’re being disproportionately harm on this economic system, can get again to work.”

Transition staff officers wouldn’t say on Wednesday how costly Mr. Biden’s proposals have been prone to be or whether or not he would announce a price estimate on Thursday. Final week, Mr. Biden stated he anticipated his full agenda would value “trillions” of {dollars}.

The proposals within the second tranche are prone to be bigger than the primary, and Democrats plan to pay for all or a few of them by raising taxes on corporations and the rich. The second bundle is anticipated to be centered on job creation and infrastructure, together with lots of of billions of {dollars} of spending on clear power tasks like electrical automobile charging stations, together with well being care and training spending, Mr. Biden’s staff and main congressional Democrats have indicated.

The primary invoice is prone to be deficit-financed, consistent with the Covid-19 reduction payments that Congress handed final yr.

Mr. Biden has stated he’ll work to construct Republican help for his plans, and he’ll want 10 Republican votes within the Senate to beat a filibuster. However high Democrats within the Home and Senate are preparing to pivot quickly to a parliamentary course of referred to as finances reconciliation within the occasion they will get solely a easy majority within the Senate. Republicans used the process to bypass a filibuster and approve Mr. Trump’s signature tax cuts in 2017.

Democrats on each side of the Capitol — together with Senator Chuck Schumer of New York, who would be the majority chief — have urged Mr. Biden to spend greater than he had initially deliberate within the preliminary reduction invoice, individuals acquainted with the conversations stated.

Many Democrats within the Home and Senate have been urgent Mr. Biden this week so as to add objects to the primary invoice, together with focused support for eating places and non permanent expansions of the earned-income tax credit score and the kid tax credit score, which may value simply over $100 billion. Economists say increasing these credit may sharply scale back baby poverty when many low-income dad and mom have misplaced work and are turning to meals banks for assist.

Congressional Democrats could embody growth of these credit of their laws no matter whether or not Mr. Biden requires it. After Congress handed a $900 billion support invoice that didn’t embody Democrats’ full precedence record in December, Mr. Schumer instructed committee members to draft laws that would come with growth of these tax credit, together with the extra direct funds and support to state and native governments.

Democrats are additionally pushing Mr. Biden to incorporate in his proposal provisions to robotically renew federal unemployment advantages and different support till the unemployment price falls to a specified stage, in case Congress stops approving extra rescue payments sooner or later.