usa currency bring - Us esta fee - An official website of the United States government

Is the amount of cash we bring back with us important

In the United States, if carrying over $10,000 worth of currency, there are forms that need to be filled out. The website listed below provides 

Bringing Money to the U.S.

You may bring large sums of money with you in the form of cash, money order, or traveler's checks.

How much currency/monetary instruments can I bring into the

It is legal to transport any amount of currency or other monetary instruments into or out of the United States. However, if you transport, 

How much money can you bring into and out of the U.S.?

How to report money when you travel. To report to CBP that you are bringing more than $10,000 in currency or money instruments into or out of 

Traveling with Cash: How Much Can You Carry When

By law, travelers must declare cash or monetary instruments totaling more than $10,000 when entering or leaving the United States. This 

USA Travel Guide

There's no limit to the amount of cash you can take into the USA. However, you'll need to declare larger amounts (anything over USD10,000) when you land.