(CNN) โ€”ย On April 9, President Donald Trump gave the world aย three-month windowย to negotiate trade deals with the United States or face higher โ€œreciprocalโ€ tariffs. With just five days remaining in that tariff moratorium, the White House is expected to begin delivering a message to a dozen or so countries: Time is up, and hereโ€™s your new tariff rate.

Trump early Friday at Joint Base Andrews told reporters that he would notify 10 to 12 nations a day over the course of the next five days, detailing theirย new tariffsย in letters that the White House would begin sending on Friday. In most cases, the new rates would go into effect August 1, Trump said.

โ€œTheyโ€™ll range in value from maybe 60% or 70% tariffs to 10% and 20% tariffs, but theyโ€™re going to be starting to go out sometime tomorrow,โ€ Trump said. โ€œWeโ€™ve done the final form, and itโ€™s basically going to explain what the countries are going to be paying in tariffs.โ€

In April, Trump imposed โ€œreciprocalโ€ tariffs as high as 50% on most of Americaโ€™s trading partners. So tariffs of 60% or 70% would exceed those rates, which sent stocks crumbling into bear-market territory, while bonds and the US dollar sold off sharply. US stocks and bonds markets were closed Friday for Independence Day, but stock markets and futures fell around the world.

Itโ€™s not clear yet which countries would receive the letters, but Trump has called out certain trading partners for driving too hard of a bargain, including the European Union and Japan. Trump this week threatened toย send a letter to โ€œspoiledโ€ Japanย setting its tariff rate as high as 35%. Still, that may have been a negotiating tactic, and itโ€™s not known whether those partners will be among the countries for whom the White House will set new tariffs.

Trump said he expected the letters to be delivered by the administrationโ€™s self-imposed July 9 deadline to draft deals. The administration has said at times that its timeframe was flexible for countries that make a good-faith effort to negotiate with the United States.

On Friday, a European Union diplomat told CNN that the trading bloc was in the โ€œmiddle of very difficult negotiations,โ€ which would likely continue into the weekend as the deadline approaches.

The diplomat, who spoke on the condition of anonymity as they are not permitted to speak on the record about closed-door meetings, told CNN the talks are proceeding in a constructive manner, but it is unclear whether the administrationโ€™s July 9 deadline will be extended if a finalized agreement isnโ€™t reached in time.

Olof Gill, a trade spokesperson from the European Commission, said in a briefing Friday that he couldnโ€™t share specifics about trade talks since they were in โ€œa very sensitive phase of negotiations.โ€

For countries that are continuing to negotiate with the United States but have not yet reached a deal, including India, White House press secretary Karoline Leavitt said last week that โ€œthe deadline is not critical.โ€ Thatโ€™s a point that Treasury Secretary Scott Bessent emphasized to Fox Business last week, too, saying he thinks trade negotiations could be โ€œwrapped upโ€ by Labor Day, providing a more relaxed framework for inking deals than the previously prescribed July 9 deadline.

But Trump appeared to adjust that timeframe on Friday. Asked if countries would be afforded any flexibility with the tariff deadline, Trump said, โ€œnot really.โ€

โ€œTheyโ€™ll start to pay on August 1. The money will start to come into the United States on August 1, in pretty much all cases,โ€ Trump said.

Still, Bessent on Thursday told Bloomberg TV that he predicted a โ€œflurryโ€ of deals before July 9. And for those who couldnโ€™t reach an agreement with the United States, โ€œabout 100 countriesโ€ could continue to face only the 10% minimum tariff rates that the United States imposed during Trumpโ€™s โ€œLiberation Dayโ€ announcement on April 2.

Trump appeared to confirm that this week, saying, โ€œWe have a couple of other deals,โ€ and, โ€œAs we get to the smaller countries, weโ€™re pretty much going to keep the tariffs the same.โ€

โ€˜How many deals could you make?โ€™

So far, the administration has signed narrow frameworks for trade deal negotiations with just two partners: the United Kingdom and China. Trump this week said his administration has also reached anย agreement with Vietnam, though the status of that arrangement remains unknown, and a framework does not appear to have been signed. The White House has not provided terms of the Vietnam agreement beyond a social media post from Trump.

For months, the Trump administration has saidย deals are imminent, working with 18 key partners to lower trade barriers while hundreds of other countries wait in line to get out from under the burden of higher tariffs.

At one point, Trump said 200 deals were possible and nearly done.

โ€œIโ€™ve made all the deals,โ€ Trump said in aย Time interviewย in late April, saying trade negotiations with foreign partners were nearly complete. โ€œIโ€™ve made 200 deals.โ€

More than two weeks later,ย Trump acknowledgedย that hundreds or even dozens of deals arenโ€™t possible on such a short timeframe โ€” a point he reiterated last Friday at a press briefing at the White House.

โ€œYou know, we have 200 countries,โ€ Trump said. โ€œWe canโ€™t do that. So at a certain point, over the next week and a half or so, or maybe before, weโ€™re going to send out a letter. We talked to many of the countries, and weโ€™re just going to tell them what they have to pay to do business in the United States. And itโ€™s going to go very quickly.โ€

That idea of establishing new tariffs for countries that canโ€™t or wonโ€™t reach a deal with the United States has been floating around for over two months, but the timeline keeps getting pushed back. On April 23, Trump said his administrationย would โ€œset the tariffโ€ย for countries that fail to negotiate new terms in the following few weeks. Onย May 16, Trump said that โ€œat a certain point, over the next two to three weeks โ€ฆ weโ€™ll be telling people what theyโ€™ll be paying to do business in the United States.โ€

On Thursday, Trump said those letters are a day away.

โ€œItโ€™s just much easier,โ€ Trump said. โ€œWe have far more than 170 countries, and how many deals could you make?โ€

CNNโ€™s Elisabeth Buchwald, Samantha Delouya and James Frater contributed to this report.