Payment Extension
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Accept payments in Wave Accounting
Free accounting and invoicing for very small businesses.
Install the extensionThe moment it's built for
Wave's free books are great; its payment processing rates and payout timing may not be. Keep the books, bring your own processing.
Open the unpaid invoice, highlight what's owed, right-click, and charge it through Merchant360 at your negotiated rates.
Recording it in Wave Accounting
Mark the invoice paid in Wave and keep the transaction ID in the payment note; deposits and refunds run from your Merchant360 dashboard.
Card details are keyed in the extension's own secure panel and go straight to Merchant360 – never stored, and never touching Wave Accounting – with any surcharge itemized before the charge.
Try it on your next Wave Accounting payment
Install, click Connect with Merchant360, and you're charging in minutes. Test mode lets you rehearse with no real money.