Still supported, but generally not where I'd start
NetSuite
⭐⭐⭐
Larger/more complex companies
Overkill for most small businesses
Zoho Books / FreshBooks / Wave
⭐⭐
Specific/simple use cases
Make sure your CPA actually supports them
1. QuickBooks Online is the safest choice
For a US business owner working closely with a CPA, QuickBooks Online (QBO) is the strongest default.
The most compelling evidence is from CPA Practice Advisor's 2025 Readers' Choice survey of accounting/tax professionals: QuickBooks Online/Online Accountant received 66.4% of the vote for online small-business accounting, versus 7.9% for Xero and 2.8% for Sage Intacct/Business Cloud. QuickBooks Desktop separately won the installed-program category with 78.4%.
There's also a long-running CPA-firm pattern behind this. CPAFMA's technology survey found QuickBooks was the dominant client-accounting product, with QBO overtaking Desktop among surveyed firms.
And Intuit has built a substantial accountant ecosystem around it: its ProAdvisor program provides accountants with training, certification, client-management capabilities, and a free QuickBooks Online Accountant subscription.
Practical implication: If you ask a random US CPA, “Can you work with QuickBooks Online?”, the probability of a "yes" is exceptionally high.
2. Xero is the strongest alternative
Xero is absolutely accountant-friendly and has a substantial professional-accounting ecosystem.
Xero says its US advisor directory includes firms whose staff are trained in Xero and have at least eight Xero clients. Its partner program provides accounting practices with training, support, practice-management tools and client collaboration capabilities.
The important distinction is adoption vs. quality.
Xero doesn't appear to have anything close to QBO's US small-business penetration among accountants, but the accountants who do use it tend to be quite comfortable with it. Xero also emphasizes its integrations—more than 1,000 third-party apps—which can be particularly attractive to tech-forward businesses.
So I'd choose Xero over QBO if your CPA already prefers Xero or if you have a business/international workflow where Xero is particularly advantageous.
3. Sage Intacct becomes interesting as you grow
Sage Intacct is a different category from QBO/Xero.
It's much more compelling when you're dealing with things like:
multiple entities
more sophisticated reporting
departmental/location accounting
complex revenue recognition
larger accounting teams
substantial transaction volume
sophisticated AP/AR
outsourced accounting/CFO services
Sage has a dedicated Sage Intacct Accountants Program specifically for accounting firms and outsourced accounting providers.
There's also a notable distinction: Sage positions Intacct as the AICPA-preferred cloud financial management solution.
So I'd think of it as:
QBO → small business / straightforward operations Xero → small business / cloud-first alternative Intacct → growing and more complex business
One important caveat
I'd ask your actual CPA before choosing.
Accountants frequently have standardized workflows around particular platforms. Your CPA may have:
a preferred bookkeeping platform
standardized month-end procedures
integrations with your tax software
payroll integrations
automated bank-feed/reconciliation workflows
staff trained specifically on QBO/Xero/Intacct
preferred add-ons such as Bill.com, Dext, Ramp, Gusto, etc.
The best accounting software for you is therefore often the platform your CPA already supports deeply, rather than whichever product has the highest overall market share.
What I'd ask your CPA
Send them these five questions:
Which accounting platform do you prefer your clients use?
Do you prefer QuickBooks Online or Xero?
Do you want to manage the books yourself, or should my bookkeeper handle them?
Which payroll, AP, expense-management and receipt-capture tools integrate best with your workflow?
If my company grows substantially, what platform would you want me to migrate to?
That last question is particularly valuable. You don't want to build your entire bookkeeping operation on one platform only to discover at $5M–$10M of revenue that your CPA wants you on something substantially more sophisticated.
My recommendation
For a typical US small-to-mid-sized business:
🥇 QuickBooks Online — safest overall choice 🥈 Xero — excellent if your CPA prefers it 🥉 Sage Intacct — consider when you're becoming a more complex/mid-market company
And I'd strongly favor QuickBooks Online over QuickBooks Desktop for a new implementation unless your CPA has a specific reason to put you on Desktop. The professional ecosystem is increasingly cloud-oriented, while Desktop remains important largely because of its enormous installed base and legacy clients. The 2025 accountant survey still shows Desktop being widely used, but QBO clearly leads the online category.
If you tell me your approximate annual revenue, number of employees, industry, whether you have inventory, and whether you use a CPA/bookkeeper today, I can narrow this down to the 2–3 accounting stacks I'd recommend for your specific business, including payroll, AP, expense management, receipt capture, and tax integration.
When working with a CPA in the United States, choosing an accounting tool that seamlessly integrates into their workflow can save you hours of back-and-forth, messy data exports, and extra fees at tax time.
The most widely supported and preferred accounting tools by US accountants span across different business sizes:
QuickBooks (Online and Desktop): QuickBooks is the undisputed market leader and the default standard for the vast majority of US CPAs and tax professionals. Nearly every American accounting firm has built-in expertise, dedicated staff portals (QuickBooks Online Accountant ), and direct data-import capabilities for QuickBooks. If you want zero friction with your accountant, this is the safest bet.
Xero: Xero is the strongest alternative to QuickBooks and enjoys a massive, growing adoption among modern cloud-based CPA firms and tech startups. It features a clean interface and robust app integrations, though you should always double-check that your specific CPA is fully fluent in Xero before committing.
Sage Intacct: Sage Intacct is tailored for mid-market and scaling businesses. Notably, it is the preferred financial management application endorsed by the AICPA (American Institute of Certified Public Accountants), making it exceptionally well-suited for businesses that require rigorous audit trails and complex accounting structures.
Sage 50 (US Edition / Peachtree): Sage 50 remains popular for established small-to-mid-sized businesses—especially in construction, manufacturing, and distribution—due to its rigid adherence to GAAP (Generally Accepted Accounting Principles) that stops non-accountants from altering foundational ledger data.[1]
To help narrow down which tool fits your exact operations, tell me:
What is your industry and approximate annual revenue?
Do you need to manage inventory, advanced job costing, or multi-location payroll?