What an Authorized IRS E-File Provider Is
The IRS vets every applicant before it accepts one. The company files through the e-services system and then waits on a suitability review.
That review can cover a credit check, the company’s own tax compliance record, a criminal background check, and any earlier failure to meet e-file requirements.
Principals and responsible officials are also fingerprinted unless they are already an attorney, a certified public accountant, or an enrolled agent.
In the program manual, the roles follow the path a return takes.
An Electronic Return Originator begins the electronic submission once the taxpayer authorizes it.
An Intermediate Service Provider is the optional next stop, taking returns in from originators and processing them before they go on.
A Transmitter reaches the IRS, sending return data through systems built to connect to the agency.
A Software Developer works off that path entirely, writing the software that formats the data to specification.
The manual also says the categories are not exclusive.
One originator can be a transmitter, a software developer, or an intermediate service provider at the same time, depending on which parts of the work it takes on.
A company registered for three roles is doing three parts of the process in-house.
The IRS keeps its provider database as a list of businesses accepted into the program.
It states in writing that inclusion does not endorse the listed providers or the products and services they offer. It advises filers to check for themselves.
A provider running a website must register every URL it uses for federal e-filing with the IRS, and report any change within three business days.
That window is short, and the rule covers every address a filer might reach, including the homepage.
The IRS can shut down unvalidated sites and seize their contents. A live, registered domain is evidence in its own right.
Four of the e-file roles, selected from a longer IRS list. Roles may overlap, and registration does not prove that all processing is in-house. Source: IRS Publication 3112.
1. FileTax.com
FileTax.com is registered as an Electronic Return Originator, a Software Developer, and a Transmitter. Three of the program’s roles therefore belong to one company.
The software that formats the request, the submission itself, and the transmission to the IRS all happen in the same place, with no intermediate processor in the chain.
The site states that it is an authorized IRS e-file provider and a member of the Council for Electronic Revenue Communication Advancement, or CERCA, and the second of those checks out against the association’s published member roster.
Its explanation of the badge stays within what the IRS says. It describes authorized providers as tax professionals accepted into the electronic filing program, and notes that the company completes annual testing with the agency.
The site publishes a 24-hour reply target on its contact route, which is more than several larger names put in writing.
Alongside its tax extension services, FileTax.com has do-it-yourself return software and preparation by a tax professional.
It also covers expert consultation, IRS representation, tax planning, and year-round educational material.
An account opened in April stays open for the return finished in October.
Filers who knew the service as e.file-tax.net will find it here, since it rebranded as FileTax.com in November 2025.
2. H&R Block
H&R Block publishes the most precise account of what happens after a filer sends an extension.
Its guidance tells filers they have the next six months to finish the return and that they log in to the same MyBlock account with the credentials created for the extension.
From there, the product walks them through an interview that completes the forms.
The company has an online help center, a chat route, and telephone support.
It also maintains physical offices where a filer can book an appointment and deal with someone directly.
For some filers, that last one matters more than any software feature.
An extension e-filed through the online product with an authorized debit amount attached locks in that amount.
H&R Block publishes that directly, and the figure cannot be changed once the request has gone, so a filer estimating what they owe has to get the number right the first time.
H&R Block also appears on the CERCA roster, alongside the other established names in the category.
3. TurboTax
TurboTax has a dedicated extension flow and answers the continuity question outright.
Its extension page tells the filer that nothing extra is needed to finish up afterward, and that when the return is ready, the product guides them through the next steps.
That same page displays an e-file seal and never states the authorization in words.
For the largest name in the category, that is an unusual choice, and a filer who wants the claim in text has to look for it somewhere other than the page they are filing from. Intuit does appear on the CERCA roster.
Support starts at a public question-and-answer forum, with a contact route behind it.
How fast a filer gets an answer therefore depends on what has already been asked and answered there.
The software was written in 1984, nine years before Intuit bought it in 1993, and no other tax software here has been in operation that long.
4. FreeTaxUSA
TaxHawk operates FreeTaxUSA. The parent company name that appears on the CERCA roster and FreeTaxUSA’s own copyright line date the service back to 2002.
Messages go through an in-account message center or by email, and the company gives a turnaround time of roughly half an hour.
A public peer community operates alongside those two routes. There is no published telephone route, which is the trade-off for that turnaround.
The filer logs in with the same account that was used for the extension, and the information entered in April is waiting there when the return comes due in October.
That is the same handoff H&R Block and TurboTax describe on their own pages.
How to Check Any of This Yourself
The IRS keeps a public locator for authorized providers. A filer can enter a five-digit ZIP code, or choose a state instead, then narrow the results by provider type.
The entry shows which companies are in the program and in what capacity, and the results are ordered alphabetically by business name.
The CERCA roster comes from a trade association and the locator comes from the IRS, so the two checks answer different questions about the same company.
Trade membership says a company joined an industry body. The locator entry says it cleared the program’s own bar.
A company can appear on one list and not the other with nothing wrong at all, and neither list is a recommendation.
Neither check shows how an extension connects to the return, and TaxAct is where that matters.
An extension filed there does not continue into the return the way it does at the four above.
The company’s own support material warns that e-filing an extension before importing the prior year’s data blocks that import afterward, and it treats the extension payment as a figure the filer has to enter again later.
The company documents that behavior, and a filer who plans to import should run the import first.
