Blockchain micropayments: how small crypto payments work
A blockchain micropayment is a small crypto transfer, often on a second layer such as Bitcoin's Lightning Network. Check the network before you send.
Vahe HakobyanEditor-in-chief
Updated Oct 6, 20264 min readFact-checked
On this page
- Second layers can move many small payments off the base chain
- Match your wallet and network to the recipient before sending
- A confirmed on-chain payment cannot be reversed by the network
- Paying with crypto can be taxable, so keep records
- Keep your seed phrase offline and ignore phishing requests
To send one, you need a wallet on the right network, the recipient's address or invoice, and enough crypto for the amount and fee.
What is a blockchain micropayment?
A blockchain micropayment is a small crypto transfer, often made on a second layer rather than the base chain. Bitcoin's Lightning Network, described in a 2016 white paper, is one example. A base chain records each transfer across the whole network, so the fee can be larger than the amount you send.
A second layer makes small payments cheap by moving them off the base chain. Some second layers, such as Lightning, open a payment channel and track the balance off the base chain. A single on-chain transaction can then cover many small payments.
What do you need before you start?
Check which network the recipient uses before you do anything else. A payment sent on the wrong network can be lost. You need a wallet that works on that network, and the recipient's address or invoice.
- A wallet that can use the recipient's network
- The recipient's address, or an invoice for a network like Lightning
- Enough crypto on that network for the amount and the fee
- A note of what the payment is for
How do you send a micropayment?
The order below keeps the checks ahead of the irreversible step.
- 1Match the networkUse the same network the recipient gave you. A Lightning invoice works only on Lightning.
- 2Get the address or invoiceAsk the recipient to send it in text form. For Lightning, you usually get an invoice.
- 3Enter the amountType the amount in the wallet. The wallet shows the network fee before you approve.
- 4Review the detailsLook at the address, the network, and the total. This is your last check before sending.
- 5Confirm and save proofApprove the payment and save the transaction ID or invoice. Do not share your seed phrase with someone who asks.
What should you do after sending?
The IRS treats crypto as property, so paying with crypto can be a taxable event even when the amount is small. Buying crypto with US dollars is not a taxable event, but spending it usually is. Keep records of the date, the dollar value, and what you paid for. If a payment goes to the wrong network, the network will not reverse it. Contact the recipient, but a refund would be a new payment. Treat any message that asks for your seed phrase as a scam.
Frequently asked questions
Networks with a second layer can support them. Bitcoin's Lightning Network, described in a 2016 white paper, is one example.
No. Both sides need wallets that can use the same network, and the apps can differ.
A confirmed on-chain payment cannot be reversed by the network. A merchant can send a voluntary refund as a new payment.
Open the payment in your wallet, or look up the transaction ID in a block explorer.
