A fiat on-ramp is a service that lets you exchange government-issued money, such as US dollars or euros, for cryptocurrency. Exchanges, brokers, payment apps and crypto ATMs can all act as on-ramps. For a buyer, the on-ramp decides how you pay, which identity checks you go through, what fees you see and where your crypto is sent.
How a fiat on-ramp works
A fiat on-ramp connects the banking system to a blockchain. You pay it in fiat money, usually by card or bank transfer. It quotes a price, takes its fees and sends the crypto to a wallet address you choose.
Most on-ramps check your identity first. A US Treasury report (April 2023) notes that international anti-money-laundering standards from the Financial Action Task Force (FATF) cover the centralized businesses that act as on- and off-ramps.
Example
Say you want €100 of bitcoin. You enter the amount and choose how to pay. The quote shows the rate, the fees and the bitcoin you will get. You paste your wallet address and pay. The bitcoin is then sent to that address.
Why it matters when you buy crypto
On-ramps differ in how you pay, what you pay and how you are verified. Coinmama is a cryptocurrency exchange. Coinmama does not add its own fee. All fees are shown before you confirm your order.
You’ll be asked to verify your identity before you buy. See how to get verified and payment methods and account limits, then buy crypto on Coinmama.
Fiat on-ramp vs fiat off-ramp
| Feature | Fiat on-ramp | Fiat off-ramp |
|---|---|---|
| You send | Fiat money | Crypto |
| You receive | Crypto in your wallet | Fiat money in your bank account |
| Typical checks | Identity and payment | Identity and source of funds |
Risks and red flags
- Transfers are final. A Bitcoin payment cannot be reversed; only the receiver can refund it. Check the address and network before you pay.
- Crypto ATM scams. Scammers ask victims to buy crypto at an ATM and send it to them. The FBI logged more than 13,400 crypto kiosk complaints in 2025, with losses over $388 million (as of May 2026).
- Fake sites. Copycat sites steal card details and logins. Type the website address yourself and learn to spot phishing attacks.
- Card costs. Card issuers may treat crypto purchases as a cash advance, which can add fees and interest.
Go deeper: How to Buy Crypto: A Beginner’s Guide.
