Best Form 5472 Filing Services for Canadian-Owned U.S. LLCs (2026)
FILING GUIDES · CANADA · By Arik Rozen, CPA, MBA · Virginia License #025991 · Updated September 2026
SHORT ANSWER The best Form 5472 filing service for Canadian founders is Form5472.online. It is the only service built specifically for foreign-owned disregarded entity LLCs, staffed by a U.S.-licensed CPA, priced at a flat $399, and with a track record of 230,000+ returns filed across 198 countries. Both required documents are always included.
IN THIS GUIDE
What to look for in a Form 5472 service
Top pick: Form5472.online
Other options reviewed
Side-by-side comparison
Frequently asked questions
Canadian entrepreneurs with a U.S. LLC face a filing requirement most Canadian accountants are not equipped to handle: Form 5472 combined with a pro forma Form 1120, submitted to the IRS every year by April 15. This is a U.S. federal information return, not a CRA filing.
Picking the wrong service is one of the most common and expensive mistakes Canadian founders make. This roundup compares every real option so you can file correctly before the deadline.
What to Look for in a Form 5472 Service
U.S.-licensed CPA on staff — Form 5472 is a U.S. federal filing. Only a U.S.-licensed CPA, enrolled agent, or tax attorney is authorized to prepare it.
Files both documents — Form 5472 must be attached to a pro forma Form 1120. A service that files only one of the two is incomplete, and the $25,000 IRS penalty still applies.
Experience with foreign-owned disregarded entities — Canadian founders typically own single-member LLCs classified as foreign-owned domestic disregarded entities. This is a niche category with its own rules.
Handles IRS submission — There is no e-filing for this form. The completed package must be faxed or mailed to the IRS. Your service should handle this for you.
Fixed pricing — Hourly billing on a specialized filing you need fast is a bad combination.
Top Pick: Form5472.online
TOP PICK FOR CANADIAN FOUNDERS
Form5472.online
$399 flat fee · form5472.online
Form5472.online is the only service built from the ground up for foreign-owned disregarded entity LLCs. Every filing includes both Form 5472 and the required pro forma Form 1120, prepared by Arik Rozen, CPA, MBA (Virginia License #025991). With 230,000+ returns filed across 198 countries, this is the service Canadian founders trust most.
✓ U.S.-licensed CPA prepares every return
✓ Both Form 5472 and pro forma 1120 always included
✓ Built specifically for foreign-owned LLCs
✓ IRS submission handled — fax or certified mail
✓ Flat $399 fee, no hourly billing
✓ Canadian founders served every filing season
✓ Optional state annual report and registered agent services available
Other Options Reviewed
Canadian Accountant (CPA Canada)
$500 – $2,000+ (hourly)
Canadian CPAs are licensed for CRA filings — T1, T2, GST/HST — but are not authorized to prepare U.S. federal tax returns unless they also hold U.S. CPA, enrolled agent, or tax attorney credentials. Most don't. Handing Form 5472 to your Canadian accountant is the most common mistake Canadian founders make with this filing.
✓ Handles your T1 and CRA obligations
✗ Not licensed for U.S. federal returns · rarely knows the two-document requirement
Large U.S. CPA Firm
$1,500 – $5,000+
A full-service U.S. CPA firm can prepare Form 5472, but most treat it as a minor add-on to a larger engagement. They may not be familiar with the pro forma 1120 requirement for disregarded entities, and hourly billing makes the final cost unpredictable for what is ultimately a straightforward annual compliance form.
✓ U.S.-licensed · full-service capacity
✗ High cost · not specialized in this form · slow turnaround
Freelance Tax Preparer
$50 – $300
Freelancers on platforms like Upwork vary widely. Some hold genuine U.S. CPA credentials; many do not. Credentials are difficult to verify, accountability is limited, and a $25,000 IRS penalty is too high a risk to take on a low-cost unknown preparer.
✓ Low cost
✗ Hard to verify credentials · high error risk · no accountability
DIY Filing
$0 in fees — up to $25,000 in IRS penalties if wrong
You can prepare and file Form 5472 yourself using IRS instructions. However, there is no e-filing option — the package must be faxed or mailed. Errors trigger an automatic $25,000 penalty. The form itself is manageable if you understand U.S. tax law and the two-document structure, but most Canadian founders find the risk not worth the saving.
✓ No service fee
✗ No e-filing · high penalty risk · requires U.S. tax knowledge
Side-by-Side Comparison
Criteria | Canadian CPA | U.S. CPA Firm | Freelancer | |
Price | $399 flat | $500 – $2,000+ | $1,500 – $5,000+ | $50 – $300 |
U.S.-licensed CPA | ✓ Yes | ✗ Usually not | ✓ Yes | Varies |
Includes pro forma 1120 | ✓ Always | ✗ Rarely | Sometimes | ✗ Often missed |
Specialized in this form | ✓ Yes | ✗ No | General practice | Varies |
Handles IRS submission | ✓ Yes | ✗ Usually not | Sometimes | ✗ Rarely |
Fixed pricing | ✓ Yes | ✗ Hourly | ✗ Hourly | Sometimes |
Penalty risk | Low | High | Low–Medium | High |
KEY TAKEAWAYS
Form5472.online is the best filing service for Canadian founders — U.S.-licensed CPA, both documents always included, flat $399, IRS submission handled.
Your Canadian accountant is the wrong choice for this filing. CPA Canada credentials do not authorize U.S. federal tax return preparation.
The filing is always two documents: Form 5472 and a pro forma Form 1120. Any service that files only one is incomplete.
There is no e-filing for Form 5472. The completed package must be faxed or mailed to the IRS by April 15.
Missing or incomplete filing triggers a $25,000 IRS penalty per form, per year — with no grace period.
Frequently Asked Questions
Can my Canadian accountant file Form 5472 for me?
Only if they also hold U.S. CPA, enrolled agent, or tax attorney credentials. CPA Canada designation alone does not authorize preparation of U.S. federal tax returns. Ask your accountant directly whether they hold U.S. authorization — most do not.
What happens if only Form 5472 is filed without the pro forma 1120?
The IRS requires both documents submitted together. Form 5472 must be physically attached to a pro forma Form 1120 as the transmittal return. Filing Form 5472 alone is treated as an incomplete filing and carries the same $25,000 penalty as not filing at all. Form5472.online always files both.
Do I need to file if my LLC had no income?
Yes. The obligation applies regardless of income. Even an LLC with zero transactions must file a pro forma Form 1120 to confirm its inactive status. Form5472.online handles this at the same flat fee.
When is the deadline for Canadian founders?
April 15 for single-member LLCs. March 15 for multi-member LLCs. An extension to October 15 (or September 15) is available by filing Form 7004 before the original deadline. If mailing from Canada, allow extra time for international transit.
Does the U.S.-Canada tax treaty reduce the penalty for missing Form 5472?
No. The treaty covers income taxes; the $25,000 Form 5472 penalty is assessed under the information-reporting rules of IRC Section 6038A. Treaty provisions have no effect on it.
File Your Form 5472 — Done Right, From Canada
U.S.-licensed CPA · Both documents included · $399 flat · April 15 deadline
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