Square Invoices

Square Invoices is the invoicing arm of Square's commerce platform. It lets a business create and send professional invoices and estimates from a browser or mobile app, and lets customers pay them online by card or other supported methods. The core product follows Square's signature model: sending invoices costs nothing, and Square earns a processing fee only when an invoice is actually paid electronically. That makes it one of the lowest-friction ways for a small business to move from chasing bank transfers to getting paid online.

It suits service businesses and independents who bill clients rather than sell at a checkout: contractors, cleaners, designers, consultants, repair shops and anyone whose work ends with an invoice. It is especially natural for businesses already using Square for in-person payments, since customers, items and payment records live in the same account, but it also works standalone for businesses with no point of sale at all.

Key features

• Unlimited free invoices: send as many invoices and estimates as you like on the basic plan.
• Online payment built in: customers pay by card straight from the invoice, with the payment recorded automatically.
• Estimates to invoices: convert accepted estimates into invoices without retyping.
• Recurring invoices and reminders: schedule repeat billing and automatic nudges for unpaid invoices.
• Tracking: see which invoices are viewed, unpaid or overdue at a glance.
• Mobile app: raise and send an invoice from a phone on the job site.
• Card on file: with customer permission, store a payment method to charge recurring or follow-up invoices without asking again.
• Plus tier: an optional subscription adds features like milestone-based payment schedules, custom templates and multi-package estimates for bigger jobs.

How it fits an SMB finance stack

In the stack, Square Invoices covers the order-to-cash step: it is where receivables are created, chased and settled. Payments land as Square payouts to the business bank account, and invoice records can be exported or synced into accounting software so the ledger reflects what has been billed and collected. For a small service business, pairing Square Invoices with a cloud ledger often replaces a patchwork of word-processor invoices and manual bank checking, shortening the gap between finishing work and seeing the money. The automatic reminders alone remove one of the least pleasant recurring chores in a small business: chasing polite but forgetful clients.

Receivables are also where cash-flow surprises are born: an invoice sent is not cash in the bank until it is paid. A cash flow management tool like Trezy pairs with a Square Invoices setup through bank synchronisation and exports, tracking payouts as they arrive and helping a business see how outstanding invoices translate into the cash actually available in the weeks ahead. That turns a list of unpaid invoices into a realistic picture of upcoming liquidity.