Trump issued an Executive Order about De Minimis, getting rid of it for HK and China over the next couple months. https://www.whitehouse.gov/presidential-actions/2025/04/further-amendment-to-duties-addressing-the-synthetic-opioid-supply-chain-in-the-peoples-republic-of-china-as-applied-to-low-value-imports/
This was the same topic debated in Congress. If you're not familiar with it, De Minimis allowed shipments under $800 entering the US to go to recipients without being treated as commercial goods, unless they were specifically declared as commercial goods. So they don't need to comply with the laws applicable to commercial goods, or pay import duty.
As has become normal this EO uses drugs as a justificaiton to declare another national emergency. And as with many things these days, the justification doesn't make sense. Under De Minimis goods were only excempt from formal entry requirements, they were (and still are) subject to the same level of screening by the CBP regardless.
So drug shipments will have the same chance of being caught before and after the EO.
But anyway, what's the REAL impact?
No more tax free shipments of low value stuff to the US from Temu and others. The EO divides shipments into postal shipments and others (for example DHL) and there are different methods of calculating how much is owed which I won't go into.
Good or bad?
IMO it's a rare W for Trump policy. Companies in China like Temu, Shein, and Aliexpress have been shipping stuff directly to US consumers using the postal service for dirt cheap. Not only is that stuff able to get to consumers without any taxes being paid, it also doesn't have to comply with any regulatory requirements, forced labor, or other requirements.
Eww, regulatory stuff, you might think. It's not just dictating the font used on a label, it's ensuring that your child's toy doesn't contain lead, is a choking hazard, or your baby's blanket isn't as flammable as a tissue. Making products that are decent quality and safe is costly, and a company in China (or anywhere) that doesn't have to comply will be able to undercut companies that do.
There are some impacts to small businesses that for some reason may be receiving a lot of packages as a core part of what they do. For example those overseas shopping services. And courier companies are going to have a lot of admin to take care of, though they will surely pass those costs over to consumers (and more).
Overall it's a good move to stop companies outside the US from carpet bombing the country with cheap crap of dubious quality.
But!
But Trump ought to have let Congress deal with this. They were already headed in this direction and there's bipartisan support, so it didn't need to be yet ANOTHER "emergency" order.
These drug emergencies are starting to become like the old South Park skit.
TL;DR
Starting soon, all packages coming into the US from HK and CH will be taxed even if the value of the shipment is low.