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8 Best Billing & Invoicing Software in 2026

Updated Feb 3, 2026

See how our top 8 picks compare across the 8 billing & invoicing software we evaluated.

Explore what each does best, where it falls short, and why it earned a spot on our 2026 list.

Alex Bass Headshot
Alex Bass
Andra Vomir Headshot
Andra Vomir

    Best Billing & Invoicing Software at a Glance

    8 apps and 8 deals
  1. 1
    Mercury Bank
    Mercury Bank

    Best for those already using Mercury as their banking solution

    Best for those already using Mercury as their banking solution
  2. 2
    Ramp
    Ramp

    Best for those already using Ramp for corporate cards

    Best for those already using Ramp for corporate cards
  3. 3
    Stripe
    Stripe

    Best for large SaaS startups

    Best for large SaaS startups
  4. 4
    BILL Spend & Expense
    BILL Spend & Expense

    Best for those already using BILL S&E for corporate cards

    Best for those already using BILL S&E for corporate cards
  5. 5
    Kick
    Kick

    Best AI accounting for small businesses

    Best AI accounting for small businesses
  6. 6
    Airwallex
    Airwallex

    Best for multi-currency businesses

    Best for multi-currency businesses
  7. 7
    Harvest
    Harvest

    Best for time tracking with built-in invoicing

    Best for time tracking with built-in invoicing
  8. 8
    QuickBooks Online
    QuickBooks Online

    Best traditional accounting software

    Best traditional accounting software
    Notable Mentions
  1. -
    Brex
    Brex
    Expense Management

    For startups using Capital One as their business bank

    For startups using Capital One as their business bank

How We Evaluate Billing & Invoicing Software

We score each billing & invoicing software across multiple criteria, and hands-on expert evaluation

  • No Category Criteria records assigned to this category yet.
  • Expert Evaluation
    Curated by
    Alex
    and
    Andra
    , our rankings reflect in-depth testing, industry insights, and hands-on experience.
1
Mercury Bank

Mercury Bank

Best for those already using Mercury as their banking solution

Best for those already using Mercury as their banking solution

The best business banking solution for startups and tech-forward small businesses. We've used so many business banks that got the job done, but Mercury is what business banking should feel like. It makes tedious tasks like invoicing and managing cashflow easy and, dare we say, enjoyable.

If you run a super traditional, check-heavy business and need branch access, keep a legacy bank as backup. But for most tech-forward SMBs, Mercury will give you everything you need. We've been using it for 6+ years, and you couldn't pay us to switch to another bank. Plus you can get a Mercury bank sign up bonus of $250.

Mercury Bank
Go to Mercury Bank site

What is Mercury?

What is Mercury?

Mercury is the best business banking platform for US companies. We've tried every business bank out there over the years, and Mercury is truly the best banking solution, regardless of whether you're a small business, startup or large enterprise.

The UI/UX is top-tier. Treasury accounts are built in. You can spin up additional checking accounts in seconds. Invoicing and bill pay actually feel smooth. It just works.

Allocating funds is handled with simple automations, so we're never thinking about setting aside cash for payroll or taxes.

And what you won't get with any other business is a free Mercury Personal account so your money can flow between business and personal accounts quickly and seamlessly. And guess what? Any of your employees can get a free Mercury Personal account too (usually $240/yr).

Mercury has turned us (and many others) into people who say, "I love my bank" and actually mean it.

Pros and Cons

Pros and Cons

Pros

Pros
  • No monthly fees or minimums
  • Excellent UI/UX
  • Powerful sub-account automation
  • Fast, simple invoicing and bill pay
  • Strong integrations

Cons

Cons
  • No physical branches
  • No physical checkbooks
  • Customer support is not instant

Mercury Key Features

Mercury Key Features

Easy Setup and No Fees

Easy Setup and No Fees

We all remember the days of spending an afternoon in a stuffy bank with folders full of paperwork just to open a business account. With Mercury, you can open an account online in only a few minutes, for free. There are no monthly fees or minimum balance requirements, and no fees on USD payments or transfers, so even if your business is just getting off the ground, Mercury's tools and features are accessible.

Sub-Accounts with Automated Allocation

Sub-Accounts with Automated Allocation

If you're someone who uses the "envelope method," you'll love Mercury's sub-accounts. Once your primary account is created, you can set up as many additional checking or savings accounts as you'd like.

Having this option shifts money management from reactive to automatic. Instead of budgeting in spreadsheets or creating reminders to set aside funds for taxes, use Mercury to create separate accounts for things like payroll and taxes, then let automatic transfer rules do the rest. It's simple, but it completely changes the way you think about cash management.

Invoicing and Bill Pay

Invoicing and Bill Pay

I actually enjoy creating invoices in Mercury, and I'm not exaggerating. It just has a simple, clutter free interface, that isn't distracting or doesn't make me jump though hoops just to get the task done.

Time to pay a vendor? Literally drag and drop the bill into your dashboard or forward it to your bill pay inbox, and Mercury automatically populates and scans it. Then, in just a few clicks, you can take care of sending the payment, categorizing the expense, and even setting up recurring payments. Invoices are similarly smooth and will have you on your way to getting paid in minutes

Treasury Yield + $5M FDIC Coverage

Treasury Yield + $5M FDIC Coverage

Mercury is not a traditional bank, but all checking and savings deposits are safe, sound, and FDIC-insured up to $5M through partner banks and sweep networks. Plus, your idle cash can earn interest instead of sitting at near-zero in a traditional bank.

Unlike a lot of the other high-yield investment options, Mercury Treasury makes transfers actually fast, even same-day.

Free Personal Accounts

Free Personal Accounts

We've been Mercury personal account users for a while now, and even paid their $240 annual fee for a while because we just wanted the same Mercury banking experience for personal use too.

But now, any Mercury business account user can get a free personal account, which is a huge bonus. Remember those quick, intuitive features and tools we mentioned earlier? You can use those to simplify your personal finances, too. Plus, with everything under one roof, transfers between your business and personal accounts are almost instant.

Mercury Pricing

Mercury Pricing
  • Free: $0/mo. Best for startups and small businesses that need a powerful free business bank account (We're on this tier).
  • Plus: $35/mo (or $29.90/mo billed annually). Best for growing businesses that want advanced invoicing, ACH debit collection, expense reimbursements for larger teams, and enhanced accounting automations.
  • Pro: $350/mo (or $299/mo billed annually). Best for businesses with complex operations that need a relationship manager, unlimited invoicing via API, ACH debit with $0 transaction fees, and support for large teams.

Disclaimer: Mercury is a fintech company, not an FDIC-insured bank. Banking services provided by Choice Financial Group, Column N.A., and Evolve Bank & Trust, Members FDIC. Deposit insurance covers the failure of an insured bank.

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2
Ramp

Ramp

Best for those already using Ramp for corporate cards

Best for those already using Ramp for corporate cards

Ramp is our top pick in the expense management category for businesses that consistently hold at least $25K in their bank account. If that’s you, Ramp is an absolute winner—hands down. If you're tired of clunky expense reporting, slow corporate card processes, and feeling like your "finance stack" is duct-taped together, Ramp is awesone. We'd absolutely recommend it for modern companies—especially over traditional options like Amex or slow-moving legacy systems. (Oh, and it's totally free 👀)

Ramp
Go to Ramp site

What is Ramp?

What is Ramp?

Ramp is a corporate card and expense management platform designed to help companies control spend, automate finance tasks, and gain real-time visibility into expenses. It's a leader in the spend/expense management and accounting automation space, with a clean UI/UX, tons of reporting features, and fast search functionality. Ramp is built for scaling businesses who want better financial control without the friction of traditional banks.

They have a great UI/UX, tons of reporting/insights features, and a super clean and fast search functionality to find exactly what you're looking for:

Embedded Image
Embedded Image

Pros and Cons

Pros and Cons

Pros

Pros
  • Easy and fast onboarding
  • Clean and intuitive dashboard
  • Real-time transaction tracking
  • Strong accounting integrations (QuickBooks, Xero, NetSuite, Kick)
  • Great receipt capture flexibility (SMS, email, mobile)
  • Generous cashback rewards (~1.5%)
  • iOS and Android Apps
  • Free

Cons

Cons
  • No "parent budget" feature
  • $25K minimum balance required to open an account
  • Minor delays for offline vendor transactions

Key Features

Key Features

Clean UI/UX

Clean UI/UX

Easy navigation with CMD+K search and an AI chatbot for help.

Spend Controls

Spend Controls

Easy to configure budgets via spend programs and card restrictions.

Receipt Matching

Receipt Matching

Automatic retries and Gmail integration for company-wide receipt fetching.

Pricing

Pricing
  • Cost: Free.

No annual fees, no user fees, and no hidden fees. Revenue comes from interchange fees and an optional paid tier for larger teams. BUT Important: You need around $25K in your business bank account at signup to get approved. Your credit limit will be based on your cash balance.

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3
Stripe

Stripe

Best for large SaaS startups

Best for large SaaS startups

If you're a venture-backed SaaS startup, you should definitely be using Stripe. That said, this becomes more critical once you hit $4–10M/ARR. Before that, you're totally fine with using Polar, and having it handle all the tax complexities for you as your MOR.

Stripe
Go to Stripe site

What is Stripe?

What is Stripe?

Stripe is the most popular payment processing solutions on the market. Just about every single successful SaaS uses them, because they have the most robust infrastructure and deepest integrations of all the best payment processing software on the market.

4
BILL Spend & Expense

BILL Spend & Expense

Best for those already using BILL S&E for corporate cards

Best for those already using BILL S&E for corporate cards

BILL Spend & Expense is the best expense management software for small-medium sized businesses. The reason is because they are extremely accessible and do not require bank minimums like the other competitors do. Plus, it's totally free.

BILL Spend & Expense
Go to BILL Spend & Expense site

What is BILL Spend & Expense?

What is BILL Spend & Expense?

I'm sure you've heard of a business credit card? BILL Spend & Expense is a replacement for your typical corporate card. It's totally free to use (no annual fee), you get rewards and it has a much more comprehensive feature set, giving you the ability to create virtual credit cards for each vendor with spending limits. Further, BILL Spend & Expense is an expense management solution. Bought a new marketing software? Categorize it and when integrated with Quickbooks Online, it will automatically reconcile your books for you.

Simply put, if you are a business owner living in the United States, you are missing out if you're not using an expense management solution + a BILL Spend & Expense business credit card. There are other players in the market, and we've used all of the core competitors (Ramp, Brex, Expensify, and Airbase), and we're here to tell you to look no further than BILL Spend & Expense if you're a small business (Did we mention it's totally free? 👀)

Key Features

Key Features

Credit Card

Credit Card

BILL Spend & Expense gives us so much control when it comes to our spending. We can easily create a virtual credit card, set a budget and Quickbooks category within seconds for each different vendor. We simply set a budget for each credit card for the exact amount that we know will be charged. If a subscription service decides to increase their pricing and charge our card, it will decline. And we like that, because we want to be the one deciding if someone should charge us more or not. 💪

Because we're able to put virtual cards down with each vendor, BILL Spend & Expense allowed us (and our vendor) to actually catch a person that committed fraud by stealing and using our credit card 🤯 Of course, the employee of our vendor was fired. Catching them would have been impossible to pin down if we had a generic credit card on file.

Employee Cards

Employee Cards

Have multiple employees that need their own corporate card? Create a card for them and set a spending limit, that's all you need to do. You can change the spending limit for each employee, make it $50 or $500, BILL Spend & Expensecards allow you to be flexible. If they leave the company, simply freeze the card (you have total control—just think of what the process is like with a typically corporate card. Issuing a new card for an employee is an annoying process, as is cancelling it). Not to mention the positive affect it has on your employees, as they get to feel empowered and like a trusted part of the team.

Rewards

Rewards

The rewards are pretty standard with others in the business credit card space, getting somewhere around 1–1.5% on all categories, with a bit more in certain categories (higher % when making payments weekly—less if made bi-weekly or monthly).

One customer that we recommended BILL Spend & Expenseto started using it and quickly saw his reward balance grow. He decided to use the reward funds as Christmas bonuses for his employees. He said, "it's money that's just sitting there, and if I can give them a little extra to take home at the end of the year, it's something cool I get to do."

Travel rewards are also a perk with BILL Spend & Expense as they are partnered with TravelPerk. While we haven't cashed in our travel rewards yet, it's a great option for our next company retreat!

Eligibility Requirements

Eligibility Requirements

The BILL Spend & Expense eligibility requirements are way more accessible than that of Ramp and Brex (who both make their account criteria unnecessarily high). BILL Spend & Expense is great for startups and teams of all sizes, even if you're just getting your business started.

BILL Spend & Expense is the best tool in the spend management, business credit cards, budgeting, and basic accounting automation suite for most businesses of all sizes.

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5
Kick

Kick

Best AI accounting for small businesses

Best AI accounting for small businesses

Kick is a new AI-powered bookkeeping and accounting platform that we are super bullish on. We've been using QuickBooks Online (QBO) since 2010 because for a long time it was one of the only options available, but it has been absolutely dreadful software to use. If you're a new business, we strongly urge you to consider using Kick from the get-go; it's about 500 times more user-friendly than QBO.

That said, if you need full accrual accounting, or have heavy inventory, fixed assets, or a complex e-commerce business, Kick is not ready for you (yet)—but they're catching up quickly.

Kick
Go to Kick site

What is Kick?

What is Kick?

Kick is a new AI-powered bookkeeping and accounting platform that we are super bullish on. We’ve been stuck using QuickBooks Online (QBO) since 2010 because there weren’t many other options, but let’s be real—it’s dreadful to use. When we found Kick, we were stoked. If you’re a new business, we strongly recommend starting with Kick, it’s about 500 times more user-friendly than QBO.

The Stripe, PayPal, and Mercury integrations work seamlessly out of the box, unlike QBO’s nightmare setup. That said, if you need full accrual accounting, heavy inventory tracking, or complex e-commerce features, Kick isn’t quite there yet—but they’re catching up fast.

6
Airwallex

Airwallex

Best for multi-currency businesses

Best for multi-currency businesses

We are huge fans of Airwallex for businesses that operate internationally and want to accept money across borders. With Airwallex, your customers can pay in their local currency, and you can keep the money in that currency (no forced conversions!). Better yet, you can spend funds locally using Airwallex's built-in expense management and multi-currency corporate cards.

This is our top pick for multi-currency payments, and we way prefer it over Wise. Wise is great for simple transfers. Airwallex is built for running an actual business globally.

Airwallex
Go to Airwallex site

What is Airwallex?

What is Airwallex?

Airwallex is a global finance platform built for businesses that operate internationally. It helps companies collect payments, send payouts, and manage money across multiple currencies without relying on traditional banks. The biggest advantage is that you can receive payments in local currencies and keep those funds in that currency. That means no forced conversions and fewer FX fees when paying global vendors or contractors.

Airwallex is a great fit for global businesses like ecommerce brands selling internationally, marketplaces handling payouts, or any company paying overseas contractors.

But if your business only operates domestically and rarely deals with foreign currencies, Airwallex is probably more than you need.

Pros and Cons

Pros and Cons

Pros

Pros
  • Multi-currency accounts with local bank details
  • Global payouts to 200+ countries in 60+ currencies
  • Competitive FX rates compared to traditional banks
  • Built-in corporate cards and expense controls that work globally
  • Integrations with platforms like Shopify, WooCommerce, Xero, and QuickBooks
  • Free business account

Cons

Cons
  • Overkill for businesses operating in a single currency
  • Some advanced features geared toward global teams

Key Features

Key Features

Multi-Currency Accounts

Multi-Currency Accounts

Airwallex lets businesses create local bank accounts in multiple currencies, including USD, EUR, GBP, and AUD. This allows companies to collect payments like a local business in different countries and hold those funds without immediate conversion.

Global Payouts

Global Payouts

Businesses can send payments to vendors and contractors in 200+ countries using local payment rails. This usually means faster transfers and lower fees compared to traditional international wires.

Corporate Cards and Expense Management

Corporate Cards and Expense Management

Airwallex includes virtual and physical corporate cards. They make things like spend control, budgeting, and expense tracking so much easier.

But what's really cool is that you can spend directly from foreign currency balances with Airwallex. So get paid $10k in USD and pay your US vendors in USD without ever converting the funds.

Pricing

Pricing

Airwallex offers a free business account, so it's super easy to get started without up-front costs. (A no-brainer!)

  • Explore: Free. Best for startups and small businesses that want multi-currency accounts, global transfers, and corporate cards without paying a monthly fee.
  • Grow: Paid plan designed for scaling businesses that need more advanced spend controls, expense management, and financial automation tools.
  • Accelerate: Higher-tier plan built for larger companies with complex financial operations and higher transaction volumes.

In addition to subscription tiers, Airwallex charges transaction-based fees depending on how you use the platform. FX conversions typically include a tiny markup above the interbank rate, which is still significantly cheaper than most traditional banks.

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7
Harvest

Harvest

Best for time tracking with built-in invoicing

Best for time tracking with built-in invoicing

Harvest tracks categorized chunks of time for client and project work without overwhelming you with timeline details, making it easy to log hours and manage budgets, then instantly handle invoicing and billing all in one place. We used to use Harvest back when we were consulting, and loved it.

Harvest
Go to Harvest site

What is Harvest?

What is Harvest?

Harvest is a time tracking and invoicing tool built primarily for teams that bill clients for their work. It lets you track time across projects and tasks, monitor budgets in real time, and turn logged hours into professional invoices without needing a separate billing system.

Pros & Cons

Pros & Cons

Pros

Pros
  • Clean, minimal approach to time tracking
  • Built-in invoicing and billing directly from tracked time
  • Recurring invoices and built-in payment support via Stripe and PayPal
  • Strong project budgeting and profitability reporting for client work
  • Easy client and project organization with clear budget, spend, and cost visibility
  • Native QuickBooks Online integration

Cons

Cons
  • Limited automatic activity tracking compared to tools like Timely
  • Not ideal for users who want detailed "what happened at each hour of the day" tracking

Key Features

Key Features

Time Tracking

Time Tracking

Harvest focuses less on the timeline/calendar view of time tracking (e.g. what did you get done at each time of the day), and is more focused on simply tracking categorized chunks of time (tasks) across clients/projects.

Their approach is more minimal in a way—versus throwing sometimes an overwhelming amount of data at you (which is intending to help you figure out what you did), actually results in a bit of overwhelm.

Invoicing

Invoicing

The biggest difference between Harvest and Toggl + Timely is that Harvest allows you to track time, and then spin up invoices based on the time tracked without ever leaving Harvest (with powerful invoicing/billing features).

Reporting

Reporting

Harvest was actually built initially as internal tool for a marketing agency to track all of their client work which has since evolved to support hundreds of thousands of users at over 70,000 companies—so with Harvest, client reporting is deeply at the core.

Figuring out who is profitable, who is trending toward being over budget, and all the convenient billing/invoicing features to handle it all are all baked right in. (It even allows for recurring custom invoices and payment via PayPal + Stripe, along with a powerful native QuickBooks Online integration).

In the project view, you'll see every client, their projects, and detailed budget, spend, and costs all in one convenient place.

Pricing

Pricing
  • Free: $0 forever. Best for individual freelancers who need basic time tracking, reporting, and invoicing for up to 1 seat and 2 projects.
  • Teams: $11/mo per user ($108/yr). Best for teams that need unlimited seats, team reporting, capacity tracking, invoicing, and accounting integrations.
  • Enterprise: Custom pricing. Best for organizations that need advanced controls like profitability reporting, timesheet approvals, activity logs, custom reports, SAML SSO, and dedicated onboarding support.
8
QuickBooks Online

QuickBooks Online

Best traditional accounting software

Best traditional accounting software

QuickBooks Online handles accounting with a strong focus on US businesses, especially around US sales tax laws, and most US accountants are more familiar with it than with alternatives.

If you're in the US and need accounting software with a solid API, it's the standard choice, but don't rely on it for expense management, payroll, or time tracking because those areas are clunky, limited, and better handled elsewhere.

QuickBooks Online
Go to QuickBooks Online site

What is Quickbooks Online?

What is Quickbooks Online?

We find that teams based in the US tend to use QuickBooks Online, and businesses outside of the US tend to lean more toward Xero.

This is important because it means that the features QBO is building is more focused on things like US Sales Tax laws, while Xero may have more accounting features helpful outside of the US especially.

Also, accountants inside of the US are often more proficient with QBO as compared to Xero (although they should be familiar with both).

P.S. We highly recommend QBO over QuickBooks Desktop because of their robust API—you're not going to be integrating QuickBooks Desktop easily with anything.

Key Features

Key Features

Accounting

Accounting

QBO helps companies manage core financial tasks like invoicing, expense tracking, bank reconciliation, financial reporting, and tax preparation.

Payroll & Benefits

Payroll & Benefits

This is one of those areas that it makes sense that they cover, but you can tell it was an add-on versus being their core service. Payroll is boring, and hey, QBO does the job, it's just not a straightforward user-experience, and let's just say we used it for 4 years before switching to Gusto, and there's not a single bone in my body that misses QBO for payroll. It was also incredibly painful closing it down with them, reporting to all the Department of Labor agencies, and everything. Save yourself the time and skip out on QBO for Payroll.

Time Tracking

Time Tracking

If you compare QuickBooks Online to any of the best time tracking software on the market, you'll see just how wildly barebones, slow, and underwhelming it is. Even just the process of logging into QBO feels like you're pushing a boulder uphill, now you need to do it any time you track software? No thanks, I'll pass.

They designed it more to be for people who just need to submit their time one-per-day or once-per-week, they are building to check a box, not to be leading the time tracking space.

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Our Verdict

1
Mercury Bank

Mercury Bank

Best for those already using Mercury as their banking solution

Best for those already using Mercury as their banking solution
Worth trying
Apps worth trying
These billing & invoicing-adjacent apps prioritize another category at their core, but their billing & invoicing features are strong enough that you should still consider them.
  1. Rho
    Rho
    Banking

    Built for larger funded businesses

    Built for larger funded businesses
  2. Relay
    Relay
    Banking

    Profit-First style money management

    Profit-First style money management
  3. Numeral
    Numeral
    Sales Tax

    Best for automated sales tax compliance

    Best for automated sales tax compliance
  4. Deel
    Deel
    Payroll & HR

    Best for global hiring

    Best for global hiring
  5. Novo
    Novo
    Banking

    Simple and least powerful

    Simple and least powerful
  6. Expensify
    Expensify
    Expense Management

    For those who don't want to switch credit cards

    For those who don't want to switch credit cards
  7. Gusto
    Gusto
    Payroll & HR

    Best payroll software for small businesses

    Best payroll software for small businesses
  8. Gelt
    Gelt
    Tax

    For high-income individuals and business owners

    For high-income individuals and business owners
  9. Xero
    Xero
    Accounting

    Best for non-US businesses

    Best for non-US businesses
  10. Polar
    Polar
    Payment

    Best for startups & SMBs who want automatic tax compliance

    Best for startups & SMBs who want automatic tax compliance
  11. Rippling
    Rippling
    Expense Management

    For enterprise teams already using Rippling elsewhere

    For enterprise teams already using Rippling elsewhere
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