Best free accounting & finance tools (2026)

This is the honest shortlist of accounting & finance tools you can run at $0, with the real limits spelled out.

We split tools you can use indefinitely for free from ones that only offer a trial, and for each we note the concrete limit and the catch. Figures reflect public plans at the time of writing and can change.

The free tools at a glance

Tool	Free offer	What you get free	Best for
Brex	Free plan	Global cards, reimbursements, travel, standard integrations	VC-backed startups
Expensify	Free plan	Individuals / very small teams	Expense reports
Melio	Free plan	5 free ACH payments/month	SMB bill pay
Mercury	Free plan	No monthly fees or minimums	Startups
Ramp	Free plan	Unlimited cards, expense automation, bill pay	Startups
Square	Free plan	2.6% + $0.15 in-person card	Retail & hospitality
Zoho Books	Free plan	1 user, for businesses under ~$50K revenue	Zoho suite users
Wave	Free plan	Core accounting and invoicing	Micro businesses

The picks, ranked

1. Brex Corporate Cards & Spend

Corporate cards, banking-style cash management and spend software aimed at venture-backed and global startups.

Free plan: Global cards, reimbursements, travel, standard integrations

Standout feature: Corporate cards with limits based on company cash, not personal credit.

Best for: VC-backed and global startups wanting cards, banking and spend software in one place.

The catch: Capital One acquisition (closed April 2026) adds direction uncertainty.

Full Brex overview

Try Brex free →

2. Expensify Expense Management

Receipt scanning and expense reports with SmartScan, plus the Expensify Card; popular with individuals and teams alike.

Free plan: Individuals / very small teams

Standout feature: Bill pay, invoicing and global reimbursements.

Best for: Teams that want fast receipt capture and expense reports, plus accountant partners.

Full Expensify overview

Try Expensify free →

3. Melio Accounts Payable / Payments

Simple B2B bill pay letting SMBs pay vendors by bank transfer or card while vendors receive checks or ACH; free core payments.

Free plan: 5 free ACH payments/month

Standout feature: Free ACH allowances per plan tier.

Best for: US SMBs handling vendor bill pay, plus accountant referral partners.

The catch: Free ACH capped per tier, then ~$0.50 per ACH payment.

Full Melio overview

Try Melio free →

4. Mercury Business Banking

Online business banking for startups with free wires, virtual cards, and built-in spend and treasury tools.

Free plan: No monthly fees or minimums

Standout feature: Virtual and physical debit cards.

Best for: Startups and online businesses wanting modern banking with free wires and treasury.

The catch: Mercury Treasury is SIPC-insured (up to $500k), not FDIC.

Full Mercury overview

Try Mercury free →

5. Ramp Corporate Cards & Spend

Free corporate cards plus spend management, expense automation and bill pay with aggressive cashback and savings insights.

Free plan: Unlimited cards, expense automation, bill pay

Standout feature: Receipt and expense automation (SMS prompts, OCR, AI categorization).

Best for: Startups and growing companies wanting free cards and tight spend control.

Full Ramp overview

Try Ramp free →

6. Square Payments & POS

All-in-one payments, POS hardware and business tools for retail and hospitality, with invoicing and basic banking.

Free plan: 2.6% + $0.15 in-person card

Standout feature: POS app that adapts to retail, restaurant and appointment businesses.

Best for: Retail, restaurants and in-person sellers needing POS plus payments.

Full Square overview

Try Square free →

7. Zoho Books Accounting

Affordable accounting deeply integrated with the wider Zoho suite (CRM, Inventory, Payroll); strong automation and value.

Free plan: 1 user, for businesses under ~$50K revenue

Standout feature: Client portal and automated payment reminders.

Best for: Value-seeking SMBs and existing Zoho users wanting tight suite integration.

The catch: Per-plan user caps (extra users cost ~$3/user/mo).

Full Zoho Books overview

Try Zoho Books free →

8. Wave Accounting

Free core accounting and invoicing for very small businesses; monetizes via payments and payroll add-ons.

Free plan: Core accounting and invoicing

Standout feature: Free core accounting, invoicing and expense tracking (Starter).

Best for: Micro businesses, solopreneurs and side hustles wanting free books.

The catch: Only operates in the US and Canada.

Full Wave overview

How to pick a free tool

Start with the free plan whose limit you'll hit last for your use case — seats, items or sends — not the longest feature list. Free tiers are for validating fit; upgrade only when a real ceiling, not a nice-to-have, gets in your way.

FAQ

Which of these are genuinely free, and which are just trials?

8 tools here offer a permanent free plan you can keep using at $0 — including Brex, Expensify and Melio. Every tool in the ranked list above offers a standing free plan, not just a trial.

What's the catch with a free plan?

Free tiers trade away scale or polish. The usual limits are usage caps (seats, contacts, sends, storage), a reduced feature set, vendor branding or watermarks, and gated automations. Each pick above lists its specific limit and catch where the data names one.

How were these chosen?

We include a tool only when its own pricing or an independent source confirms a real free plan or trial — no assumed free tiers. Details, limits and facts are drawn from the vendors' plans and the reviews cited in Sources below.

Can you actually run a business on a free plan?

Up to a point. Free plans suit solo users and small volumes; once you need more seats, higher limits or to drop the vendor branding, upgrading is the honest call.

Sources

Free-plan limits and facts above are drawn from these vendor pages and independent reviews: