125,000+ american pros trust Invoice Fly
Level up your invoicing & estimating process
with Invoice Fly
Centralize your invoices & estimates in one secure cloud-based platform
Store, manage, and access all your invoices and estimates from one secure cloud-based platform. With Invoice Fly, your documents are always organized, synced, and available anytime — whether you’re in the office, on the job site, or working remotely.
Our centralized system keeps your workflow efficient, your records safe, and your business running smoothly.
Why do contractors & small businesses love sending invoices & estimates with Invoice Fly?
How to send invoices & estimates with Invoice Fly?
Create beautiful, stunning estimates that win you more work
First impressions count. Send polished, professional estimates and quotes that instantly build trust and win you more projects.
Add secure electronic signatures and request upfront payments to lock in client commitment and kick off work with confidence.
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Get paid up to 4x faster with smart & fully customizable invoices
Send professional, fully customizable invoices that help you get paid up to 4x faster. With smart automation and a personalized touch, Invoice Fly streamlines your billing process so you can boost cash flow, reduce payment delays, and focus on growing your business.
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Easily manage estimates & invoices from the client portal
Access, review, and update all your estimates and invoices without leaving the client portal. Invoice Fly gives you a centralized hub where you can track payment statuses, approve or edit quotes, and send invoices instantly — all from one place. This streamlined workflow saves time, reduces back-and-forth communication, and keeps your client interactions smooth and professional.
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Seamless payments through Stripe & PayPal integrations
Accept payments from anywhere with ease using Invoice Fly’s seamless Stripe and PayPal integrations. Give your clients trusted, secure, and convenient ways to pay — whether by card, bank account, or balance — while you enjoy faster transactions, improved cash flow, and a smoother payment experience for every project.
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Track invoices & estimates KPI's with Invoice Fly's business reports
Easily monitor how your invoices and estimates drive revenue for your business. Gain a clear snapshot of your top customers and track your monthly revenue growth throughout the year—all in one place.
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How do contractors & freelancers benefit from sending invoices & estimates with Invoice Fly?
Invoice Fly helps them improve their payment process and growing cash flow. With professional, fully customizable templates, they can send polished estimates and invoices that inspire client trust. Features like Stripe and PayPal integrations, online payment links, and automated reminders ensure payments are received faster, while estimate-to-invoice conversion eliminates repetitive data entry and speeds up billing once a project is approved.
Our invoicing app also enhances client communication and administrative efficiency. Status notifications let users know exactly when a client views, approves, or pays an invoice, reducing misunderstandings and helping them follow up at the right time.
4x
more payments collected
with payment processing software like PayPal & Stripe
6h+
saved every week
by eliminating pen & paper documents
28%+
job win-rate increase
with polished and stunning estimates & invoices
Customized solutions for
50+ industries
Do more with the right set of tools
Send professional, polished invoices that make a great impression. Easily customize each one with your branding, payment terms, and itemized details. With built-in online payments and clear layouts, you’ll get paid faster—no chasing, no confusion.
Invoicing Software
Win more jobs by sending professional-looking estimates. Get them approved and kickstart new projects.
Estimating App
Manage all your client’s details, invoices, estimates and statements from a secure and cloud-based online platform.
Online Payments
Collect online payments with Credit Card or PayPal, Stripe, Apple Pay, American Express, Visa, MasterCard, and more.
What does it mean to send invoices?
Sending invoices means creating and delivering a formal document to a client or customer that requests payment for goods or services provided. An invoice typically includes details like the products or services delivered, the quantity, agreed price, payment terms, due date, and your business’s contact information.
In a business context, sending invoices serves two purposes:
Payment request – It formally notifies the client of the amount owed and how to pay.
Record keeping – It creates a legal and financial record for accounting, taxes, and potential disputes.
Today, many small businesses worldwide use digital invoice management software like Invoice Fly to send invoices instantly via email or client portals, track when they’re viewed, and accept online payments, making the process faster, more organized, and easier to monitor.
What does it mean to send estimates and quotes?
Sending estimates or quotes means providing a potential client with a detailed breakdown of the expected costs for a product or service before any work begins. This document helps the client understand what they’ll be paying for, the pricing structure, and the terms of service so they can decide whether to move forward.
An estimate usually outlines an approximate cost based on the scope of work, materials, and labor, while a quote is more precise and often considered a fixed price that the client can accept. Both typically include details like the service description, quantities, unit prices, total cost, payment terms, and validity period.
Sending estimates or quotes digitally streamlines the process. You can send them instantly via email or client portals, request electronic signatures for approval, and even convert them directly into invoices once the client agrees, reducing delays and boosting your project win rate.
FAQs about sending invoices & estimates
To send someone an invoice, first create a clear, detailed document that includes your business information, the client’s details, a unique invoice number, a description of goods or services provided, the total amount due, payment terms, and your preferred payment methods. You can deliver it in person, by mail, or—most efficiently—send it electronically using invoice management software like Invoice Fly, which allows you to email invoices instantly, track when they’re viewed, and receive online payments.
Yes. Many online invoice generators and free invoicing apps, including Invoice Fly’s free plan, allow you to create and send invoices at no cost. These tools often include customizable templates, automated calculations, and digital delivery via email, so you can maintain professionalism without paying for expensive accounting software.
To send invoices electronically, create them using invoicing software or an online template, then deliver them via email or a client portal. With Invoice Fly, you can design a professional invoice in minutes, attach your payment links, and send it directly to your client’s inbox. The system also sends you real-time notifications when the invoice is opened and paid, making it easier to track your cash flow.
You send an invoice to formally request payment from a client for goods or services you’ve provided. Invoices act as a legal and financial record, helping you track income, manage accounts receivable, calculate taxes, and maintain transparency with clients. They’re essential for keeping accurate records and ensuring you get paid on time.
Yes. PayPal charges a processing fee for invoices paid through its platform, typically a percentage of the total amount plus a fixed fee per transaction. The exact rate can vary by country and transaction type. When using Invoice Fly, you can integrate PayPal to accept payments seamlessly, but it’s important to factor in these fees when setting your prices or payment terms.
Free Resources
Resources to run your business smoothly and efficiently.
Free Templates
Explore free templates and create estimates, quotes, invoices, bills and receipts.
Free Generators
Generate free Estimates, Quotes, Invoices, Bills, Receipts, and Proformas online.
Free Calculators
Use our free calculators: Service Price, Profit Margin, Net Salary, VAT, Break-Even…
