Kryptos lets you create, send, and record crypto invoices with the FX rate locked at payment time, VAT calculated correctly, and every document stored for the accountant.
Works with Bitcoin, Ethereum, stablecoins, and 5,500+ other assets across major networks.
Invoicing in crypto is not just sending a wallet address. Kryptos handles the parts that come after: FX rates, tax, and the paper trail.
Create a branded invoice in any currency, denominated in fiat or crypto. The client pays in crypto and the FX rate is locked at the moment of payment, not whenever you get around to recording it.
Every incoming payment is converted to your base currency at the prevailing market rate and timestamped. No manual lookups, no spreadsheet with yesterday's closing price.
VAT computed on the fiat-equivalent value of the payment at the time of receipt. Correct for B2B reverse charge and B2C standard rate scenarios. Exported in a format your accountant can import directly.
Every invoice, payment, FX conversion, and VAT calculation stored in an immutable ledger. Date, on-chain transaction hash, counterparty, amount in crypto, and fiat equivalent all in one record.
Schedule weekly, monthly, or custom recurring invoices for retainer clients. Payments auto-matched when they arrive on-chain so nothing sits in unreconciled limbo.
Push invoices and payments to QuickBooks, Xero, or your ERP via API. Your accountant works in the tools they already know, you work in crypto.
Your first 10 invoices are free. No credit card required.
Bill clients in crypto without worrying about whether the FX rate and VAT treatment will hold up if you are ever asked to show your books. Kryptos handles the compliance automatically.
Issue crypto invoices for retainers and project work with correct VAT and FX on every line item. Reconcile against your accounting software at month-end without any manual data entry.
Accept crypto payments at checkout and have every transaction recorded with the correct fiat equivalent for your tax return. Integrate with your store via our API or payment plugin.
Document your DAO compensation as proper invoices with fiat equivalents and tax treatment. Useful when your accountant asks what those token payments actually were.
Whether VAT applies depends on your country and the nature of the transaction, not on whether payment is in crypto. In the EU, crypto payments are subject to the same VAT rules as fiat payments. Kryptos calculates VAT on the fiat-equivalent value of the payment at the time of receipt, which is the correct treatment in most jurisdictions.
Bitcoin, Ethereum, USDC, USDT, and most major tokens across Ethereum, Polygon, Solana, and other networks. You can denominate the invoice in fiat (USD, EUR, GBP, etc.) and let the client pay the crypto equivalent, or denominate in the crypto itself.
Kryptos records the market price of the asset at the time the on-chain transaction confirms, using a weighted average of major exchange feeds. This is the rate used for both accounting and VAT purposes. You can see the exact source and timestamp for every conversion in the audit trail.
Each invoice record includes: the invoice number, client details, line items, the crypto amount received, the on-chain transaction hash, the FX rate at confirmation, the fiat-equivalent amount, the VAT calculated, and a link to the on-chain explorer. Exportable as PDF or CSV for your accountant.
QuickBooks Online, Xero, and any ERP that accepts a standard invoice API or CSV import. We map each invoice to the correct chart of accounts entry so your accountant does not need to do manual double-entry.
Sign up, connect your wallet, and create a compliant crypto invoice with VAT and FX handled automatically.