what's a simple billing software I can use?

If you just need to send professional invoices, track what you're owed, and get paid without dealing with heavy, complicated accounting bloat, several simple and reliable billing tools fit the job:

• Wave : Great if you want a clean, truly free tool for invoicing and basic receipt tracking. You only pay when a customer pays an online invoice via credit card or bank transfer. It’s ideal for freelancers and very small businesses. (Check it out at Wave Accounting).
• Zoho Invoice : Completely free yet surprisingly feature-rich. It offers professional templates, multi-currency support, automated payment reminders, and time-tracking. Perfect if you want robust features without a monthly subscription fee. (Explore it at Zoho Invoice).
• Square Invoices : Best if you already use Square for payments or take a mix of in-person and online payments. It’s free to use the basic tier, very straightforward to set up on your phone or computer, and makes card payments seamless for clients. (Find out more at Square Invoices).
• Bookipi : An ultra-simple, mobile-first option if you mostly need to tap out quick estimates and invoices from your phone while on the go.
• FreshBooks : If you don’t mind paying a modest monthly fee for something slick, FreshBooks is famous for being incredibly user-friendly, handling time-tracking, expenses, and client communication with zero learning curve. (See FreshBooks).

If you want to narrow this down, let me know:

• Do you need a completely free option, or are you okay with a paid tool?
• Do you need to accept online credit card payments directly through the invoice?
• Are you sending invoices from your phone or a computer?

If you want simple billing/invoicing without a lot of accounting complexity, I’d look at these:

• waveapps.com — Very straightforward for creating invoices, tracking payments, and basic bookkeeping. It has a free accounting/invoicing offering.
• freshbooks.com — Especially good if you’re a freelancer or service business. It handles invoices, estimates, expenses, time tracking, recurring billing, and payment reminders.
• quickbooks.intuit.com — More comprehensive if you want billing plus full bookkeeping, expenses, reports, and tax-related organization.
• squareup.com — Worth considering if you take payments in person or already use Square. Its invoicing integrates with its broader payment/POS ecosystem.

If your main goal is just “send customers an invoice and get paid,” I'd start with Wave or FreshBooks.

If you tell me what kind of business you have, roughly how many invoices you send per month, and whether customers pay by card/ACH/check, I can narrow it down to one or two options.

If you just need simple billing/invoicing (create invoices, send them, get paid, track who owes you), these are good options:

My quick picks:

• Just need to send invoices occasionally: Zoho Invoice or Wave.
• You run a service business (consulting, repairs, freelance, etc.): FreshBooks.
• You sell in person and online: Square Invoices.
• You expect to grow and need accounting: QuickBooks Online.

If you tell me:

1. what kind of business you have,
2. whether you need online payments, and
3. whether you want free only,

I can narrow it down to one or two choices.

Square Invoices, Wave Invoicing , and Zoho Invoice are among the simplest and most accessible billing software options available for freelancers and small businesses.

Choosing the right tool depends primarily on your specific workflow and whether you need integrated payment processing or basic accounting.

Top Simple Billing Options

Key Features to Consider

• Square Invoices: Best if you already use or want to use Square for payments. It allows you to send digital invoices via email or text, track payment status in real-time, and set up recurring billing with no monthly subscription fees.
• Wave Invoicing: A clean, web- and mobile-friendly tool that lets you build and send professional invoices in minutes. It is completely free for core invoicing, though advanced features like automatic payment reminders require a paid plan.
• Zoho Invoice: A robust, entirely free platform that offers customizable templates, multilingual support, a client portal, and automated payment follow-ups without locking core features behind a paywall.

If you can tell me whether you need recurring subscriptions, in-person credit card swiping , or free-only options , I can narrow down the best choice for you.

If by “billing software” you mean something simple for creating invoices, sending them to customers, and getting paid, I’d shortlist these:

• waveapps.com — Best simple/free option. Its Starter plan is $0 and includes unlimited invoices, estimates, bills, and basic bookkeeping.
• squareup.com — Best if you also take card payments. You can send invoices, set recurring invoices, request deposits, and automate reminders.
• freshbooks.com — Best for a service/freelance business. It combines invoicing, estimates, expenses, payments, and accounting reports.
• quickbooks.intuit.com — Best if you want full accounting too. It handles invoices, payments, expenses, reports, and recurring billing, but it's more than you need if you just want basic billing.

My pick

Start with Wave if you want simple + inexpensive. Start with Square if your main goal is sending invoices and collecting payments.

If you tell me what kind of business you have (e.g. contractor, cleaning company, consulting, retail, landscaping) and roughly how many invoices you send per month, I can recommend the simplest one for your situation.

Finding a simple billing software depends on whether you just need to send clean invoices and get paid, or if you also need basic accounting.

Here are the best user-friendly, lightweight options available:

• Square Invoices — Best if you want a frictionless, pay-as-you-go setup with no monthly subscription. It lets you quickly send professional digital invoices and track when they are paid, tying directly into Square's payment ecosystem.
• Wave — Best for a completely free starting point. Wave offers free, unlimited invoice creation, tracking, and basic accounting features, making it ideal for freelancers and micro-businesses who don't want a heavy software footprint.
• Zoho Invoice — Best for a clean, forever-free dedicated invoicing app. It handles recurring invoices, automated payment reminders, and custom templates seamlessly without forcing you into a complex accounting package.
• FreshBooks — Best if you are a service-based business or freelancer who wants simple time-tracking bundled straight into elegant client billing. It is famously easy to learn compared to heavy enterprise tools.
• Invoice Ninja — Best for a dedicated, feature-rich platform focused purely on estimates, time tracking, and fast client billing without the clutter of a full bank-feed accounting suite.

If you'd like to narrow this down, let me know:

• Are you a freelancer, a service provider, or selling physical products?
• Do you need recurring subscription billing , or just one-off invoices?
• Do you prefer free software or are you willing to pay a monthly fee for advanced features?

If you want simple billing/invoicing without a lot of accounting complexity, I’d start with Wave.

My quick picks

• Wave — Best simple/free option. The Starter plan is $0 and lets you create unlimited invoices and estimates, track customers, and manage basic bookkeeping.
• FreshBooks — Better if you're a freelancer or service business and want things like time tracking, expenses, and polished invoices.
• QuickBooks — Best if you expect to need more complete accounting, tax reporting, payroll, etc., but it's more than you need if all you want is billing.
• Square Invoices — Particularly good if you already use Square for taking payments/POS.

For most very small businesses, I'd choose Wave. You can start free and upgrade later if you need automated reminders, recurring billing, receipt capture, or more accounting features.

If you tell me what kind of business you have and roughly how many invoices you send per month, I can narrow it down to the simplest/cheapest choice for you.

If you want a straightforward, no-fuss tool that lets you send invoices and get paid without dealing with a massive, complicated accounting suite, here are the best simple billing options broken down by style:

• Zoho Invoice — Best truly free option. It offers a generous forever-free plan, clean professional templates, multi-currency support, and automated payment reminders without forcing you into a heavy accounting setup.
• Square Invoices — Best if you want a pay-as-you-go model tied to card processing. There's no monthly fee for basic use, it's super fast to set up, and it makes online client payments seamless.
• FreshBooks — Best for service providers and freelancers who bill by the hour or project. It combines clean invoicing with easy time-tracking and expense logging, sitting in the sweet spot between "too simple" and "full accounting."
• Invoice Simple — Best for mobile-first/on-the-go billing. It gets straight to the point—letting you turn estimates into invoices, track payment statuses, and text or email bills right from your phone.
• Melio — Best if your definition of "billing software" leans toward paying your own business bills (accounts payable) simply and digitally instead of writing physical checks.

To help narrow down the right fit, let me know:

• Are you looking to bill clients or pay vendors/bills?
• Do you need time tracking or just a way to send flat-fee invoices?
• Do you prefer a free tier or a paid app with advanced automation?

If you mean simple invoicing/billing for a small business, I’d start with Square Invoices.

• squareup.com — probably the easiest all-around option. You can create/send invoices, accept card/ACH payments, set recurring invoices, and automate payment reminders. The free plan has no monthly subscription; you mainly pay payment-processing fees when customers pay.
• quickbooks.intuit.com — better if you also want full bookkeeping/accounting, not just billing. It handles invoices, expenses, bank connections, reports, and payments.

My quick recommendation: If you just want to send bills and get paid → Square. If you want billing + accounting/taxes/bookkeeping → QuickBooks.

If you tell me what kind of business you have (e.g., contractor, consulting, salon, rental, online store) and roughly how many invoices you send per month, I can recommend the simplest/cheapest one for you.

If you want to skip the bloat of heavy accounting packages and just need to send professional bills and get paid, here are the best simple billing and invoicing software options, depending on your style:

• Square Invoices — Best for simple setups and taking payments instantly. If you already use Square for in-person sales, or just want a clean mobile app to text/email invoices with a "Pay Now" button, this is as straightforward as it gets. There's no monthly fee for basic invoicing—you just pay standard processing fees when clients pay.
• Invoice Ninja — Best free/low-cost option for freelancers. It lets you create custom, branded invoices, track billable hours, and set up recurring billing without forcing you to look at complex tax or bank-feed dashboards. They have a generous free tier for a small number of clients.
• Harvest — Best for time-tracking and service businesses. If your billing is based on hours worked or project milestones, Harvest makes it effortless to track time and instantly convert those hours into clean, professional invoices.
• Invoicely — Best minimalist billing tool. A lightweight, web-based platform focused entirely on estimates, time/expense tracking, and sending sleek online invoices. It’s clean, unpretentious, and has a great free plan for basic needs.
• QuickBooks Online — Best if you eventually need full accounting. It isn't the simplest standalone billing tool, but it's what most accountants prefer because it handles invoicing, expenses, and taxes all under one roof.

To help narrow this down, tell me:

• Are you billing for products, flat-fee services, or hourly work?
• Do you need online credit card payments built right into the invoice?