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How US Currency Works

From payment methods to denominations, get the full rundown on USD — all in one place.

Getting ready to explore the land of stars and stripes?

Knowing how US currency works before you fly can help you avoid confusion when it's time to pay.

We’ve unpacked the key info, from spending with cash or cards to understanding exchange rates, so you can hit the ground running.

What currency does the US use?

The official currency of the United States is the US Dollar. It’s often shortened to USD, US$, or just $ and you’ll also hear locals refer to it as “bucks.”

As the world’s most-traded currency, the US Dollar is used well beyond America and plays a major role in international finance and travel. Prepare for your trip to the states and buy US dollars in cash or card.

Denominations of US currency

Heading to the States? Get to know the look and feel of US coins and banknotes before you land.

American notes

Same size across the board; colour helps tell them apart.

$1 – grey-green

$5 – purple tones

$10 – orange-brown

$20 – green

$50 – red and grey

$100 – blue and green

American coins

Ideal for vending machines, parking meters and tips.

1¢ – penny

5¢ – nickel

10¢ – dime

25¢ – quarter

50¢ – half dollar (less common)

$1 – dollar coin (rare)

Travelex Tip: Left with spare US coins? Use them for tips, vending machines or a quick treat before heading back to New Zealand.

Payment options in the US

Payment methods are consistent across the US. Cards are widely accepted, but cash is still handy for smaller purchases, tips, or rural areas.

US Cash

  • Perfect for: Tipping, taxis, diners & small businesses.
  • Pros: Widely accepted, handy in rural areas.
  • Cons: Harder to track spending, not as secure

Why use foreign cash?

  • US dollars are accepted everywhere in the States, making them a reliable payment option—especially at places that don't take cards, like street vendors, food trucks, or local bars.
  • Having foreign currency on you also makes it easy to tip at pubs or restaurants, which is a big part of US service culture.

Things to consider:

  • Pickpocketing can happen in busy cities, so avoid carrying large sums of cash.
  • Cash can make budgeting tricky, as it’s harder to track your spending.

US Prepaid Travel Card

  • Perfect for: Safer travel with locked-in exchange rates.
  • Pros: Reload online, store multiple currencies, easy replacements.
  • Cons: Top-up times can vary, some ATM fees apply.

Why use a prepaid travel card?

  • Travel money cards let you load USD in advance using New Zealand dollars.
  • They’re safer than carrying a lot of foreign cash and easy to cancel or replace if lost. Many cards let you order a backup to take with you.
  • You can lock in your USD exchange rate at your time of purchase to avoid any hidden costs.*

Things to consider:

  • ATM withdrawals may attract a small fee.
  • Reloading your card may take a day or two, so plan ahead for top-ups.

US Debit or Credit Card

  • Perfect for: Hotel deposits, car hire, emergencies.
  • Pros: Convenient, widely accepted across the US.
  • Cons: Foreign transaction fees, not ideal for smaller purchases.

Why use a debit or credit card?

  • US stores, hotels and restaurants widely accept major cards like Visa and Mastercard.
  • They’re great for booking deposits and big expenses without dipping into your travel money.

Things to consider:

  • Smaller places—like cafes, bars or food trucks— often prefer cash to avoid processing fees.
  • There may be minimum amounts required to spend on cards in stores.
  • Bank cards may charge 2–5% in international transaction fees, so watch your spending.

USA money tips

Spending habits in the US can differ from what you're used to — being prepared can save you hassle, time, and cash.

Keep these handy tips in mind to help you handle money confidently while travelling through the States.

  • Tipping is expected. In restaurants, taxis, hotels, and other service industries, tipping 15–20% is standard. It’s also customary to tip porters, bartenders, and tour guides.
  • ATMs are widely available. You’ll find them in most towns and cities, but check if your bank charges international withdrawal or currency conversion fees.
  • Haggling is uncommon. It’s not accepted in most stores, but you might try at flea markets, second-hand shops, or with private sellers in tourist areas

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