How to Accept Crypto Payments on Invoices (BTC, ETH, USDT): A Step-by-Step Guide

Oct 13, 2025

Cryptocurrency payments are revolutionizing business invoicing. With lower fees, faster settlement times, and global reach, accepting crypto payments like Bitcoin (BTC), Ethereum (ETH), and USDT on your invoices can give your business a competitive edge. This comprehensive guide walks you through everything you need to know about crypto invoicing.

Why Accept Crypto Payments on Invoices?

Before diving into the how-to, let's understand why businesses are increasingly adopting cryptocurrency payments for their professional invoicing needs.

The Benefits of Crypto Invoicing

Lower Transaction Fees

  • Credit card processing: 3-5% per transaction
  • Wire transfers: $25-50 per transaction
  • Cryptocurrency: 1-2% per transaction

For a $10,000 invoice, you could save $200-400 in processing fees by accepting crypto payments instead of traditional payment methods.

Faster Settlement Times

  • Credit cards: 3-5 business days
  • International wire transfers: 3-10 business days
  • ACH transfers: 2-3 business days
  • Cryptocurrency: 10 minutes to 2 hours

Global Reach Without Barriers Cryptocurrency payments eliminate:

  • Currency conversion fees
  • International banking restrictions
  • Payment gateway geographic limitations
  • Cross-border transaction delays

No Chargebacks Unlike credit card payments, cryptocurrency transactions are irreversible. Once confirmed on the blockchain, the payment is final, eliminating chargeback fraud and disputes.

Financial Innovation Offering crypto payment options positions your business as forward-thinking and tech-savvy, attracting clients who prefer decentralized payment methods.

The Challenges to Consider

Price Volatility Cryptocurrency values fluctuate. While stablecoins like USDT and USDC solve this issue, Bitcoin and Ethereum prices can change significantly within hours.

Regulatory Complexity Tax reporting and compliance requirements for cryptocurrency vary by jurisdiction. You'll need to track the fair market value at the time of receipt.

Technical Learning Curve Understanding blockchain confirmations, wallet addresses, and transaction fees requires some technical knowledge.

Limited Adoption Not all clients are ready to pay with cryptocurrency, though adoption is growing rapidly among tech companies and international businesses.

What You Need to Accept Crypto Payments

To start accepting cryptocurrency payments on your invoices, you'll need:

  1. A Payment Gateway: A crypto payment processor like PassimPay
  2. Business Invoicing Software: A platform that integrates with payment gateways
  3. A Crypto Wallet: For receiving and managing cryptocurrency (usually provided by your payment gateway)
  4. Tax Compliance Strategy: Plan for reporting cryptocurrency income

Step-by-Step Guide: How to Accept Crypto Payments on Invoices

Step 1: Choose Your Cryptocurrency Payment Gateway

The first step is selecting a reliable crypto payment processor. PassimPay is an excellent choice for business invoicing because it:

  • Supports multiple cryptocurrencies (BTC, ETH, USDT, USDC)
  • Provides automatic payment verification via webhooks
  • Integrates seamlessly with invoicing platforms
  • Offers transparent pricing with no hidden fees
  • Handles blockchain complexity on your behalf

Other Popular Options:

  • BitPay
  • Coinbase Commerce
  • CoinPayments
  • BTCPay Server (self-hosted)

Step 2: Sign Up for PassimPay (Example Walkthrough)

Here's how to get started with PassimPay:

  1. Visit PassimPay.io and create a business account
  2. Complete identity verification (KYC requirements)
  3. Configure your business profile with company details
  4. Generate API credentials from your dashboard
  5. Select cryptocurrencies you want to accept (BTC, ETH, USDT, USDC)
  6. Set up settlement preferences (hold crypto vs. auto-convert to fiat)

Important: Save your API key and secret securely—you'll need these for integration.

Step 3: Connect Your Payment Gateway to Your Invoicing Software

If you're using Corcava for invoicing and financial management, integration is straightforward:

  1. Navigate to Settings → Integrations → Payment Gateways
  2. Click Add PassimPay Integration
  3. Enter your API Key and API Secret
  4. Select which cryptocurrencies to enable
  5. Configure webhook URL for automatic payment notifications
  6. Test the connection to ensure everything works

The system will automatically verify your credentials and establish the connection.

Step 4: Create an Invoice with Crypto Payment Option

Once your payment gateway is connected, creating crypto-enabled invoices is automatic:

  1. Create a new invoice in your invoicing software
  2. Select your client and add invoice items
  3. Set amounts, due dates, and terms as usual
  4. The crypto payment option appears automatically when you send the invoice
  5. Your client will see "Pay with Crypto" alongside traditional payment methods

Pro Tip: Include a note in your invoice terms mentioning that cryptocurrency payments are accepted and settlement times are typically under 2 hours.

Step 5: Send the Invoice to Your Client

When you send the invoice, your client receives:

  • A professional invoice PDF (as usual)
  • A unique payment link for crypto payments
  • Instructions for paying with cryptocurrency
  • A QR code for mobile wallet payments
  • List of accepted cryptocurrencies

Client's Payment Experience:

  1. Click "Pay with Crypto" button
  2. Choose cryptocurrency (BTC, ETH, USDT, etc.)
  3. View exact amount to send and destination wallet address
  4. Scan QR code or copy wallet address
  5. Complete payment from their wallet
  6. Receive instant confirmation when blockchain confirms

Step 6: Automatic Payment Verification

This is where the magic happens. Here's the workflow:

Blockchain Confirmation:

  1. Client sends cryptocurrency to the payment address
  2. Transaction is broadcast to the blockchain network
  3. Network miners confirm the transaction (varies by coin)
  4. PassimPay monitors the blockchain and detects payment

Webhook Notification:

  1. PassimPay sends webhook to your invoicing software
  2. Invoice status automatically updates to "Paid"
  3. Payment record created with transaction details
  4. Both you and client receive email confirmation

Transaction Details Recorded:

  • Blockchain transaction ID (hash)
  • Cryptocurrency type and amount
  • USD/fiat equivalent at time of payment
  • Timestamp of blockchain confirmation
  • Number of confirmations

No Manual Intervention Required — Everything happens automatically!

Step 7: Manage and Track Crypto Payments

Your invoicing dashboard now shows:

  • Payment Status: Pending, Confirming, Confirmed, Completed
  • Transaction Details: Full blockchain transaction information
  • Conversion Rates: Cryptocurrency amount and fiat equivalent
  • Settlement Status: Whether funds have been transferred to your wallet
  • Tax Information: Fair market value at time of receipt (for tax reporting)

You can generate financial reports that include:

  • Total cryptocurrency payments received
  • Breakdown by coin type (BTC, ETH, USDT)
  • Fiat equivalent values
  • Monthly/quarterly revenue from crypto payments

Supported Cryptocurrencies Explained

Bitcoin (BTC) — Digital Gold

Best For: Large invoices, international payments, tech-savvy clients

  • Settlement Time: 10-60 minutes (depends on network congestion)
  • Transaction Fees: $1-10 (varies with network demand)
  • Volatility: High (can fluctuate 5-10% daily)
  • Adoption: Highest brand recognition

When to Accept BTC: Best for invoices over $5,000 where clients specifically request Bitcoin. The longer confirmation time is offset by Bitcoin's strong store-of-value characteristics.

Ethereum (ETH) — Smart Contract Platform

Best For: Mid-sized invoices, faster settlements, DeFi-native clients

  • Settlement Time: 5-15 minutes
  • Transaction Fees: $2-20 (varies with gas prices)
  • Volatility: High (similar to Bitcoin)
  • Adoption: Second most popular cryptocurrency

When to Accept ETH: Good for clients in the tech and DeFi space who prefer Ethereum's faster confirmation times.

USDT (Tether) — Stable Value

Best For: Avoiding volatility, predictable amounts, accounting simplicity

  • Settlement Time: 5-30 minutes (depends on blockchain)
  • Transaction Fees: $1-5
  • Volatility: Minimal (pegged to USD 1:1)
  • Adoption: Most popular stablecoin

When to Accept USDT: Perfect for businesses that want crypto's benefits (speed, low fees, global reach) without price volatility. Recommended for most business invoicing.

USDC (USD Coin) — Regulated Stablecoin

Best For: Compliance-focused businesses, regulated industries

  • Settlement Time: 5-15 minutes
  • Transaction Fees: $1-5
  • Volatility: Minimal (pegged to USD 1:1)
  • Adoption: Growing rapidly, especially in regulated sectors

When to Accept USDC: Ideal if regulatory compliance and transparency are priorities. USDC is fully backed by reserves and regularly audited.

Pros and Cons: Is Crypto Invoicing Right for You?

Advantages of Accepting Crypto Payments

Significantly Lower Fees Save 1-3% on every transaction compared to credit cards.

Faster Access to Funds Get paid in hours instead of days with instant blockchain settlement.

Global Payments Without Barriers Accept payments from anywhere without currency conversion or international wire delays.

Eliminate Chargeback Fraud Cryptocurrency transactions cannot be reversed, protecting you from fraudulent chargebacks.

Competitive Differentiation Stand out from competitors by offering modern payment options.

Attract Tech-Forward Clients Appeal to clients in crypto, tech, and international markets who prefer digital payments.

Transparent Transactions Every payment is recorded on the blockchain with full audit trail.

24/7 Payment Processing Unlike traditional banking, crypto payments work around the clock, including weekends and holidays.

Disadvantages to Consider

Price Volatility Risk Bitcoin and Ethereum prices fluctuate significantly. (Solution: Use stablecoins like USDT/USDC)

Complex Tax Reporting Cryptocurrency is treated as property by most tax authorities, requiring capital gains tracking.

Technical Learning Curve Understanding blockchain confirmations, gas fees, and wallet security requires education.

Limited Client Adoption Not all clients have crypto wallets or understand how to use them.

Irreversible Transactions While this prevents fraud, it also means payment mistakes cannot be undone.

Regulatory Uncertainty Cryptocurrency regulations are evolving and vary significantly by country.

Potential Network Delays During high blockchain congestion, confirmations can take longer and fees can spike.

Compliance and Legal Considerations (FAQs)

Do I need a special license to accept crypto payments?

In most jurisdictions, no special license is required to accept cryptocurrency as payment for goods or services. However, requirements vary:

  • United States: No license needed for accepting crypto payments. You must report crypto income to the IRS.
  • European Union: Generally no license required, but must comply with AML/KYC regulations.
  • United Kingdom: No license for accepting payments, but must report to HMRC.

Important: If you're operating as a cryptocurrency exchange or custodian (holding crypto for others), different rules apply. Consult a local attorney specializing in cryptocurrency law.

How do I report crypto payments for taxes?

Cryptocurrency payments are taxable income in most countries. Here's how to handle it:

United States (IRS Guidelines):

  1. Record the fair market value (FMV) in USD at the time of receipt
  2. Report as income on your tax return (same as cash income)
  3. Track your cost basis if you hold the cryptocurrency
  4. Report capital gains/losses when you sell or convert crypto

Example:

  • Invoice for $5,000
  • Client pays 0.15 ETH
  • ETH price at payment: $3,333/ETH
  • Report $5,000 as income (0.15 × $3,333 = $5,000)

Tools That Help:

  • CoinTracker
  • TokenTax
  • CryptoTaxCalculator
  • ZenLedger

Most crypto payment processors, including PassimPay, provide tax reports with transaction details and FMV calculations.

What are KYC/AML requirements?

Know Your Customer (KYC) and Anti-Money Laundering (AML) requirements depend on your payment processor:

For Businesses Accepting Payments:

  • Most processors handle KYC/AML on your behalf
  • You may need to verify your business identity
  • Some processors require client information for large transactions

For Payment Processors (like PassimPay):

  • Must implement KYC/AML compliance programs
  • Verify business customers
  • Monitor for suspicious transactions
  • Report large transactions to authorities (varies by country)

Best Practice: Choose payment processors that handle compliance requirements, so you can focus on your business.

How do I handle refunds with crypto payments?

Cryptocurrency transactions are irreversible on the blockchain, but you can still issue refunds:

Refund Process:

  1. Client provides their cryptocurrency wallet address
  2. You send equivalent amount of crypto to their address
  3. Record refund transaction in your invoicing system
  4. Update invoice status accordingly

Important Considerations:

  • Price fluctuations: If crypto value changed, clarify whether refund is based on original amount or current value
  • Tax implications: Refunds may affect your taxable income
  • Transaction fees: Consider who pays blockchain transaction fees for refund

Pro Tip: Include refund policy terms in your invoices to avoid disputes about crypto price changes.

Are crypto payments secure?

Yes, cryptocurrency payments are highly secure when handled properly:

Security Features:

  • Blockchain cryptography: Industry-leading encryption protects transactions
  • Irreversible payments: Cannot be reversed by fraudulent chargebacks
  • Transparent audit trail: Every transaction recorded on public blockchain
  • Decentralized network: No single point of failure

Security Best Practices:

  1. Use reputable payment processors with proven security
  2. Enable two-factor authentication (2FA) on all accounts
  3. Store API keys securely (never share publicly)
  4. Use hardware wallets for storing large amounts
  5. Regularly update security protocols
  6. Train staff on phishing and social engineering attacks

Do I need to hold cryptocurrency?

No, you don't have to hold cryptocurrency if you prefer not to:

Option 1: Instant Conversion to Fiat Most payment processors offer automatic conversion:

  • Client pays in crypto
  • Processor immediately converts to USD/EUR/your currency
  • Funds deposited to your bank account
  • You never hold cryptocurrency

Option 2: Hold Cryptocurrency Some businesses prefer to keep crypto:

  • Potential for appreciation
  • Use crypto for business expenses
  • Build crypto treasury

Option 3: Hybrid Approach

  • Convert 80% to fiat immediately
  • Hold 20% as cryptocurrency

The choice depends on your risk tolerance, accounting preferences, and business strategy.

What happens if a payment fails or is underpaid?

Payment processors handle edge cases automatically:

Underpayment:

  • If client sends insufficient amount, invoice remains "Partially Paid"
  • System calculates remaining balance
  • Client receives notification to send remaining amount
  • Additional payment link generated for balance

Overpayment:

  • If client sends too much, excess is recorded
  • You can credit to future invoice or issue refund

Failed Transaction:

  • If blockchain transaction fails, client is notified
  • Invoice status remains "Unpaid"
  • Client can retry payment with new transaction

Network Delays:

  • During blockchain congestion, confirmations may take longer
  • Invoice shows "Confirming" status
  • Payments automatically marked complete once confirmed

How do I protect against cryptocurrency scams?

Common Scams to Avoid:

Fake Payment Confirmations Scammers send fake "payment sent" screenshots. Protection: Always verify on blockchain explorer using transaction hash.

Phishing Attacks Fake emails pretending to be from your payment processor. Protection: Never click links in emails. Navigate directly to processor website.

Man-in-the-Middle Attacks Attacker intercepts payment and substitutes their wallet address. Protection: Use payment processors with secure payment pages.

"Accidental" Overpayment Scams Scammer "accidentally" overpays, then asks for refund via different method. Protection: Only refund to the original cryptocurrency address.

Verification Best Practices:

  1. ✅ Always verify transactions on blockchain explorers (Etherscan, Blockchain.com)
  2. ✅ Wait for sufficient confirmations (typically 3-6)
  3. ✅ Use payment processors with webhook automation
  4. ✅ Enable 2FA on all crypto-related accounts
  5. ✅ Verify wallet addresses match payment processor's records

Best Practices for Crypto Invoicing

1. Start with Stablecoins

If you're new to crypto payments, start by accepting USDT and USDC. These stablecoins eliminate volatility concerns while giving you all the benefits of crypto payments (speed, low fees, global reach).

2. Clearly Communicate Crypto Payment Option

Include crypto payment information in:

  • Invoice payment instructions
  • Client onboarding materials
  • Email signatures
  • Website payment information
  • Proposal documents

Example Invoice Note:

"Cryptocurrency payments accepted (BTC, ETH, USDT, USDC). Pay faster with lower fees. Click 'Pay with Crypto' button for payment instructions."

3. Set Confirmation Requirements Based on Amount

Adjust blockchain confirmation requirements based on invoice size:

  • Under $1,000: 1 confirmation (~10 minutes)
  • $1,000-$10,000: 3 confirmations (~30 minutes)
  • Over $10,000: 6+ confirmations (~60 minutes)

4. Document Everything for Tax Purposes

Maintain detailed records:

  • Date and time of payment receipt
  • Cryptocurrency type and amount
  • USD/fiat value at time of receipt
  • Blockchain transaction hash
  • Client information
  • Invoice number reference

Your invoicing software should automatically track this information.

5. Educate Your Clients

Create a simple guide for clients:

  • What cryptocurrencies you accept
  • How to pay with crypto (with screenshots)
  • Estimated settlement times
  • Where to get cryptocurrency if they don't have it
  • Support contact for payment questions

6. Monitor Network Conditions

Be aware of blockchain network congestion:

  • During high activity, transactions may be delayed
  • Gas fees (Ethereum) can spike significantly
  • Communicate potential delays to clients during congested periods

7. Use Multi-Signature Wallets for Large Amounts

If you're holding significant cryptocurrency:

  • Use hardware wallets (Ledger, Trezor)
  • Implement multi-signature security
  • Store private keys in secure locations
  • Consider cryptocurrency custody services

8. Stay Informed on Regulations

Cryptocurrency regulations evolve rapidly:

  • Subscribe to industry newsletters
  • Consult with crypto-experienced accountants
  • Join business cryptocurrency communities
  • Monitor regulatory announcements in your jurisdiction

Integration with Business Workflows

Connecting Crypto Payments to Your Tech Stack

Modern crypto payment solutions integrate with your existing business automation workflows:

Accounting Integration:

  • QuickBooks: Automatic entry of crypto payments as income
  • Xero: Real-time synchronization of cryptocurrency transactions
  • FreshBooks: Automated invoice status updates

CRM Integration:

Project Management:

Reporting and Analytics:

  • Financial reports including crypto payment data
  • Revenue breakdowns by payment method
  • Crypto vs. traditional payment comparison metrics

Client Portal Features

Modern invoicing platforms offer client portal features for crypto payments:

  • Payment History: View all cryptocurrency transactions
  • Real-Time Status: See blockchain confirmation progress
  • Transaction Receipts: Download payment confirmations with blockchain proof
  • Payment Preferences: Save preferred cryptocurrency for future invoices
  • Wallet Management: Securely store wallet addresses for quick payments

Advanced Topics

Accepting Crypto Across Multiple Blockchains

Some cryptocurrencies exist on multiple blockchains:

USDT Available On:

  • Ethereum (ERC-20)
  • Tron (TRC-20)
  • Binance Smart Chain (BEP-20)
  • Solana (SPL)

Why This Matters:

  • Different networks have different fees
  • Tron USDT: ~$1 fee, 3-minute confirmation
  • Ethereum USDT: $5-20 fee, 5-15 minute confirmation
  • Always verify which network your client is using

Lightning Network for Bitcoin

For frequent, smaller Bitcoin invoices, consider Lightning Network:

  • Instant confirmations (seconds instead of minutes)
  • Extremely low fees (fractions of a cent)
  • Perfect for recurring invoices
  • Requires Lightning-compatible wallet

DeFi Integration Opportunities

Advanced businesses are exploring:

  • Crypto-backed loans: Use cryptocurrency holdings as collateral
  • Yield generation: Earn interest on stablecoin reserves
  • Treasury management: Optimize cryptocurrency holdings
  • Payment streaming: Real-time payment flows

Real-World Use Cases

Freelancers and Agencies

Why Crypto Works:

  • International clients without currency conversion
  • Faster payments than international wires
  • Lower fees than PayPal international transfers
  • No account freezes or payment holds

Best Practices:

  • Accept USDT/USDC to avoid volatility
  • Time tracking integration with crypto billing
  • Hourly rate crypto invoicing with instant settlement

SaaS and Software Companies

Why Crypto Works:

  • Tech-savvy customer base comfortable with crypto
  • Recurring invoices with automated crypto payments
  • Global customer base without regional payment restrictions
  • Lower fees on high-volume transactions

Best Practices:

  • Integrate crypto with subscription management
  • Offer discounts for crypto payments to encourage adoption
  • Auto-convert to stablecoin for predictable revenue

B2B Service Providers

Why Crypto Works:

  • Large invoice amounts (thousands to millions)
  • International clients with banking restrictions
  • Faster settlement for cash flow management
  • Elimination of chargeback risk

Best Practices:

  • Bitcoin for large, one-time payments
  • Stablecoins for regular service agreements
  • Net-30 terms with crypto payment incentives (net-10 if paid in crypto)

E-commerce and Digital Products

Why Crypto Works:

  • Global customer base
  • Digital delivery matches digital payments
  • Lower overhead than credit card processing
  • Appeal to privacy-conscious customers

Best Practices:

  • Instant delivery upon blockchain confirmation
  • Stablecoins for predictable product pricing
  • Lightning Network for small purchases

Getting Started with Corcava

Corcava makes crypto invoicing seamless with built-in PassimPay integration:

  1. Create your free account at app.corcava.com/register
  2. Set up PassimPay integration in Settings → Integrations
  3. Create your first crypto-enabled invoice
  4. Send to client and receive payment in minutes

Corcava Features for Crypto Invoicing:

  • ✅ Professional invoice templates with crypto payment buttons
  • ✅ Automatic payment verification via blockchain webhooks
  • ✅ Real-time invoice status updates
  • ✅ Comprehensive payment tracking and reporting
  • ✅ Tax-ready transaction documentation
  • ✅ Multi-currency support (fiat + crypto)
  • ✅ Client portal with payment history
  • ✅ Email notifications for payments
  • ✅ Integration with project management and time tracking

Conclusion

Accepting cryptocurrency payments on invoices is no longer experimental—it's a practical business strategy that reduces costs, accelerates cash flow, and opens global markets. While there are compliance and technical considerations, modern payment processors and invoicing platforms make crypto invoicing as simple as traditional payment methods.

Key Takeaways:

  1. Start with stablecoins (USDT, USDC) to avoid volatility
  2. Use integrated solutions like PassimPay + Corcava for automatic payment handling
  3. Maintain proper tax records from day one
  4. Educate your clients about the benefits and process
  5. Stay compliant with local regulations
  6. Monitor network conditions during high-volume periods

The businesses that adopt crypto payments today position themselves as innovative leaders in their industries. With the right tools and knowledge, you can offer your clients faster, cheaper, and more flexible payment options while streamlining your own financial operations.

Ready to start accepting crypto payments on your invoices? Create your free Corcava account and connect PassimPay in minutes.

Additional Resources