You have the PTIN, the clients, and the expertise—but without an EFIN, you are locked out of e-filing. Or are you?
That question stops thousands of new tax preparers cold every year. The IRS requires an Electronic Filing Identification Number (EFIN) to transmit returns electronically, and obtaining one takes time, paperwork, and a background check. For someone ready to start their practice this tax season, the wait can feel like a death sentence for their business plans.
But here's what most new preparers don't realize: there's a legal workaround that lets you start filing immediately. A growing number of software providers now offer a tax software partnership no efin required model, where the provider acts as your sponsoring IRS e-file provider. You prepare the returns; they transmit them under their EFIN.
This guide is not a promotional brochure. I've spent the last decade watching this space evolve, and I've seen both the wins and the train wrecks. My goal here is to give you a neutral, comprehensive look at how these partnerships work, what they cost, where the legal boundaries sit, and—most importantly—when you should graduate to getting your own EFIN.
Let's dig in.
Understanding EFIN: IRS e-File Requirements and Why Some Software Waive Them
Before we compare software options, you need to understand what an EFIN actually is and why some providers can legally bypass it. This isn't just academic—getting this wrong can cost you your practice.
What Is an EFIN and Who Needs One?
An EFIN is a six-digit number the IRS assigns to firms that electronically file tax returns. It's not the same as a PTIN (Preparer Tax Identification Number), which identifies you as an individual preparer. Think of it this way: your PTIN is your personal license to prepare taxes; your EFIN is your firm's license to transmit returns to the IRS.
Here's the part that confuses many newcomers: the EFIN is tied to the firm, not the individual. So if you're a solo practitioner with a PTIN but no formal business entity with an EFIN, you cannot e-file returns directly. You'd have to paper-file, which in 2026 is like choosing to mail a letter instead of sending an email—technically possible, but painfully slow and increasingly impractical.
The IRS e-file requirements are clear: anyone who "prepares or assists in preparing" more than 10 individual tax returns per year must e-file. And to e-file, you need an EFIN. That's the rule. But there's a nuance in the regulations that creates the loophole many software providers now exploit.
How Do Tax Software Partnerships Legally Bypass the EFIN Requirement?
The mechanism is called the "sponsor model," and it's fully sanctioned by the IRS. Under IRS Publication 1345, an authorized IRS e-file provider (the software company) can "sponsor" a preparer who doesn't have their own EFIN. The sponsor transmits the returns through their own EFIN, and the preparer operates as an extension of the sponsor's e-file operation.
Here's how it works in practice:
- You sign up for a partnership package with a provider like Tax Dragon Pro or Keystone.
- You prepare the return using their software.
- Your client signs Form 8879 (IRS e-file Authorization), which authorizes the return to be transmitted.
- The software provider transmits the return under their EFIN, not yours.
The key document here is Form 8879. This is the form that makes everything legal. It explicitly authorizes the "authorized IRS e-file provider" to transmit the return on behalf of the taxpayer. Without a signed 8879, the transmission is unauthorized—and that's where compliance problems start.
I've seen preparers get sloppy with this form, assuming the software handles everything. It doesn't. You still need to collect the signature, verify the client's identity, and keep records. The software provider is the transmitter, but you're still the preparer of record. That distinction matters when something goes wrong.
Top Tax Software Without EFIN: A Side-by-Side Comparison for 2026
Now let's get to the practical part. I've tested or worked with most of the major players in this space, and I've broken down the ones worth your attention. Prices and features change, so verify current details before committing.
Keystone Tax Solutions: Partnership Packages Overview
Keystone has been in the tax software game for over two decades, and their partnership model is one of the more established options. Their pitch is straightforward: you pay a flat fee for the software, and they handle the EFIN side through their sponsorship program.
Their pricing tiers typically start around $300-$500 for the season, with revenue splits that vary based on volume. What I appreciate about Keystone is their training infrastructure—they have a solid library of tutorials and live webinars that are genuinely useful for first-time preparers.
The downside? Their software interface feels dated compared to newer competitors. It's functional, but don't expect the polished user experience you'd get from more modern platforms. Some users also report slower customer support response times during peak filing season, which is when you need them most.
Tax Dragon Pro: Pricing Tiers and Revenue Splits
Tax Dragon Pro has positioned itself aggressively in the no-EFIN space, and their partnership packages are worth examining closely because they offer something for every experience level.
Their Direct Filing package costs $249 upfront, plus $99 per return filed. You keep 100% of your preparation fees—no revenue split. This is ideal if you have a small client base and want maximum control over your earnings.
For those who want bank product integration (refund advances, fee withholding from refunds), they offer tiered partnership packages:
- Bronze ($299): 60/40 split in your favor. Entry-level, designed for complete beginners.
- Silver ($499): 70/30 split. Includes a full review of every return by their team—a safety net if you're still building confidence.
- Gold ($1,399): 80/20 split. The most popular tier, according to their site. No return review, so you're fully responsible for accuracy.
- Platinum ($2,499): 90/10 split. For experienced preparers with an established client base.
- VIP ($2,999): No split. You keep everything, and they provide software training and support.
Their "No EFIN? No problem!" messaging is clear and direct. What I find interesting is how the tiers essentially let you buy down the revenue split as your volume grows. The math works out well if you're filing 50+ returns per season—the higher upfront cost of Platinum or VIP pays for itself compared to the Bronze tier's 40% give-away.
One limitation: Tax Dragon Pro's state support is comprehensive for individual returns, but their business filing options are more limited. If you're planning to handle complex entity returns, you'll need to check whether their current software version supports what you need.
BP Tax Pro and Other Notable Options
BP Tax Pro takes a slightly different approach. Their PTIN Software Package costs just $49 for the entire season—no revenue split, no EFIN required. You keep 100% of your preparation and e-file fees. The catch? You need a history of at least 25 funded bank product returns from the previous season to qualify. That's a significant barrier for true beginners.
Their model is built around bank products (refund advances, fee withholding), which means they're not a great fit if you prefer direct client payments. But if you're already working with clients who expect refund advances, their backend fees are among the lowest in the industry.
Other emerging players include No Limit Tax Refunds and Taxx Savage, both of which offer free software with revenue split models. These are newer operations, and I'd approach them with more caution—check their IRS authorization status and read user reviews carefully before handing over client data.
Compliance Risks and Legal Boundaries of No EFIN Tax Software for Tax Preparers
Here's where I'm going to be more direct than most marketing content in this space. The no-EFIN model is legal, but it's not risk-free. Understanding where the boundaries sit can save you from a very unpleasant conversation with the IRS.
Is It Legal to Use Tax Software Without an EFIN?
Yes, it is legal—provided you're using a legitimate sponsorship arrangement. IRS Publication 1345 explicitly allows for this structure. The software provider is the "authorized IRS e-file provider," and you're operating as a "sponsored preparer" under their umbrella.
The critical distinction is between being a "self-filer" (someone with their own EFIN who transmits directly) and a "sponsored preparer" (someone using a provider's EFIN). Both are legal, but they carry different compliance obligations.
As a sponsored preparer, you must:
- Ensure your software provider is currently authorized by the IRS (you can verify this through the IRS e-file provider database).
- Collect and retain signed Form 8879 for every return you file.
- Follow all the same due diligence requirements as any other preparer (verifying client identity, reviewing documents, etc.).
The most common compliance failure I've seen is preparers who assume the software provider handles everything. They skip the 8879 signature, or they don't verify client identities properly. When the IRS audits those returns, the preparer—not the software company—bears the consequences.
Who Bears Liability: You or the Software Provider?
This is the question that keeps me up at night when I talk to new preparers. The honest answer: in most cases, you bear the liability.
Here's why. The revenue split model means the software provider is essentially renting you their EFIN. They're not your employer, and they're not your business partner in the legal sense. They're a service provider. If you make an error on a return, the client comes after you. If the IRS assesses penalties for negligence, those penalties are on your head.
I've reviewed partnership agreements from several providers, and the pattern is consistent: the contracts are structured to shield the software company from liability arising from your preparation errors. That's not necessarily malicious—it's just how the industry works. But you need to read the contract before you sign.
A few specific things to look for:
- Indemnification clauses: These typically require you to hold the software provider harmless for any losses arising from your work. Standard, but you should know what you're agreeing to.
- Data ownership: Who owns the client data you input into their system? If you leave the partnership, can you take your client list and documents with you?
- Non-compete provisions: Some agreements restrict you from using another provider's software for a certain period. These are rare but not unheard of.
My advice: have a lawyer review the contract before you sign. It'll cost you a few hundred dollars, but it's cheap insurance compared to the cost of a legal dispute later.
Data Security and Client Privacy: Evaluating Cloud-Based Tax Software Partners
When you use a no-EFIN partnership, you're not just trusting the software with your clients' most sensitive financial data—you're trusting a third party you may have never met. That deserves serious scrutiny.
Key Security Features to Look For
Not all cloud-based tax software is created equal when it comes to security. Here's what I consider non-negotiable:
Encryption: Your data should be encrypted both in transit (while being transmitted to the server) and at rest (while stored on the server). Look for AES-256 encryption, which is the industry standard.
Multi-factor authentication (MFA): If the software doesn't require MFA for login, walk away. This is basic hygiene in 2026, and its absence signals deeper security problems.
Secure client portals: Your clients should be able to upload documents through an encrypted portal, not via email. Email is not secure for transmitting tax documents, and using it puts both you and your clients at risk.
SOC 2 Type II certification: This is an independent audit that verifies a company's security controls are actually working. It's not a guarantee of perfection, but it's a strong signal that the provider takes security seriously.
I also recommend asking about their data breach response plan. What happens if they're hacked? Do they have cyber liability insurance? How quickly would they notify you and your clients? These questions might feel awkward, but they're essential.
Red Flags in Partnership Agreements
Beyond the technical security features, you need to watch for contractual red flags that could compromise your clients' data—or your ability to serve them.
Vague data ownership clauses: If the contract doesn't clearly state that you own your client data, assume the provider does. This becomes a nightmare if you decide to switch software providers mid-season.
No data export guarantee: Before signing, ask for a written commitment that you can export all client data in a standard format (like CSV or PDF) at any time. If they hesitate, that's a red flag.
Automatic renewal clauses: Some agreements auto-renew, and if you don't cancel within a specific window, you're locked in for another season. Read the renewal terms carefully.
Unlimited "review" rights: Some providers include clauses that allow them to review your returns for quality assurance. That's fine in theory, but it means their staff can see your clients' financial data. Make sure you're comfortable with that.
I've seen preparers get burned by all of these issues. The data export problem is the most painful—I know one preparer who had to manually re-enter hundreds of client records because their previous provider wouldn't release the data in a usable format.
Cost-Benefit Analysis: No EFIN Partnership vs. Obtaining Your Own EFIN
Let's talk money. The no-EFIN model is attractive because it has a low barrier to entry, but it's not necessarily the cheapest option in the long run.
Hidden Costs of the No-EFIN Model
The upfront costs are obvious: the package fees ($299-$2,999 depending on the provider and tier). But the hidden costs are where the model gets expensive.
Revenue splits: If you're on a 60/40 split, you're giving up 40% of every dollar you earn. On a $300 preparation fee, that's $120 per return. If you file 100 returns in a season, that's $12,000 you're handing over.
Per-return fees: Some providers, like Tax Dragon Pro's Direct Filing option, charge per return ($99 in that case). This can be cost-effective for low volume but becomes expensive as you scale.
Opportunity cost: Every dollar you give up in revenue splits is money you can't reinvest in your business. That's not a direct cost, but it's a real one.
Now compare that to getting your own EFIN. The IRS application itself is free—there's no fee to apply. The costs come from the background check (fingerprinting, which runs about $35-$50) and the time investment (typically 4-6 weeks for approval). You also need to maintain compliance, which means staying current on IRS requirements and renewing your EFIN every few years.
When Does It Make Sense to Transition to Your Own EFIN?
Here's my rule of thumb: if you're filing more than 50 returns per season, you should seriously consider getting your own EFIN. At that volume, the revenue splits you're giving up almost certainly exceed the cost of compliance and the time investment.
The transition strategy I recommend to new preparers:
Year 1: Start with a no-EFIN partnership. Get your practice off the ground, build your client base, and learn the ropes without the overhead of EFIN compliance.
Year 2: Apply for your own EFIN during the off-season (typically May-August). The approval process takes 4-6 weeks, so you'll have it well before the next filing season.
Year 3: Switch to a standard software package that doesn't require revenue splits. You'll keep 100% of your fees, and you'll have direct control over your e-filing.
This approach lets you start quickly while building toward a more profitable long-term structure. The key is not to get comfortable with the partnership model—it's a stepping stone, not a destination.
State-Level Filing Limitations and Multi-Entity Support
One question I get constantly from preparers is whether no-EFIN software works in all 50 states. The answer is more complicated than you'd hope.
Do No-EFIN Software Options Support All 50 States?
Most major providers support all 50 states plus DC for individual returns. Tax Dragon Pro, Keystone, and BP Tax Pro all advertise nationwide coverage for Form 1040 and related schedules.
However, "support" doesn't mean "identical experience." Some states have quirks that can cause issues:
- State-specific e-file requirements: A few states require additional authorization forms or have different transmission protocols. Most software handles this automatically, but it's worth testing with a dummy return before filing for real clients.
- State tax credits and deductions: Some states have unique credits that may not be fully implemented in all software. If you have clients with complex state situations, verify the software handles them correctly.
- Local filing requirements: A handful of cities (like New York City and Philadelphia) have their own local income taxes. Not all software supports these, so check if you have clients in those areas.
If you have clients in unsupported states or with unusual filing requirements, you have two options: paper-file those returns (which is legal but slow) or refer those clients to another preparer. Neither is ideal, but it's better to know the limitation upfront than to discover it mid-season.
Handling Complex Returns: Business, Multi-Entity, and Seasonal Preparers
The no-EFIN model is primarily designed for individual returns (Form 1040). Business returns (Form 1120, 1065, etc.) are a different beast.
Some providers, like BP Tax Pro, offer business software packages, but these typically require an EFIN. The no-EFIN partnership packages are almost exclusively for individual returns. If you're planning to handle business clients, you'll likely need your own EFIN or a different arrangement.
For seasonal preparers—those who only work during tax season—the no-EFIN model can be a great fit. You can ramp up quickly, file returns for a few months, and shut down without the ongoing compliance burden of maintaining an EFIN. Just make sure you understand the contract terms regarding seasonal use and whether you're locked into an annual renewal.
Frequently Asked Questions
Is it legal to use tax software without an EFIN?
Yes, it is legal when the software provider acts as the IRS authorized e-file provider and you use their EFIN with proper authorization forms. IRS Publication 1345 explicitly allows for this "sponsored preparer" arrangement. The key is ensuring you collect and retain signed Form 8879 for every return you file, and that your software provider is currently authorized by the IRS.
What is the difference between PTIN and EFIN?
A PTIN (Preparer Tax Identification Number) identifies you as an individual tax preparer. An EFIN (Electronic Filing Identification Number) identifies your firm for e-filing purposes. You need a PTIN to prepare returns, but you need an EFIN to transmit them electronically. Some partnership models allow you to use the provider's EFIN instead of obtaining your own.
Can I file taxes as a preparer without an EFIN?
Yes, by partnering with a tax software provider that offers a sponsorship model. You sign up for a partnership package, prepare returns using their software, and they transmit the returns under their EFIN. You'll need to collect signed Form 8879 from each client and follow all other IRS compliance requirements.
How much does tax software without EFIN cost?
Entry-level packages start around $299 with revenue splits (e.g., 60/40 in your favor). Premium packages can cost $2,499-$2,999 with higher splits or no split at all. Some providers offer per-return pricing, like Tax Dragon Pro's Direct Filing option at $249 plus $99 per client filing. BP Tax Pro offers a $49 package, but it requires a history of funded bank product returns to qualify.
Conclusion
The tax software partnership no efin required model is a legitimate, legal way to start your tax preparation business without waiting for IRS approval. It's how thousands of preparers get their start every year, and for good reason: the barrier to entry is low, the software is capable, and you can begin filing almost immediately.
But here's the honest truth: it's not a permanent solution. The revenue splits and per-return fees eat into your margins, and you're operating at the mercy of a third party's EFIN. For a growing firm, the goal should always be to transition to your own EFIN within the first 1-2 tax seasons.
The decision ultimately comes down to your client volume and long-term goals. If you're just starting out and want to test the waters, a partnership package is a smart, low-risk way to begin. If you're already filing 50+ returns per season, the math almost certainly favors getting your own EFIN.
Whichever path you choose, do your due diligence. Read the contracts. Verify the provider's IRS authorization. Ask about data security and exit strategies. The right partnership can launch your career; the wrong one can sink it.
Ready to evaluate your options side-by-side? Download our free comparison checklist of the top 5 no-EFIN tax software partners to make an informed decision before you commit.