1. Acceptance of these Terms and who we are
These Terms of Service (the “Terms”) are a contract between you and Xelvon Tax Advisors LLC, a Utah limited liability company trading as Xelvon Tax Advisors (“Xelvon,” “we,” “us,” “our”). Our Managing Member is Joseph Edwin Fox.
They govern your use of this website and are the standing engagement terms for every service we perform, alongside the written proposal for a specific piece of work. If the two conflict, the proposal wins. You accept these Terms by using this website, requesting a quote, accepting a proposal, or paying an invoice. If you do not agree, do not use the site and do not engage us. Effective August 10, 2026.
Read this first. Xelvon Tax Advisors LLC is not a certified public accounting firm and is not a law firm. We are not certified public accountants, attorneys, or enrolled agents. We do not provide audit, review, compilation, attest, or assurance services, and we do not provide legal or investment advice. We do not have authority to represent clients before the Internal Revenue Service. The full explanation is on our disclaimers and scope of practice page.
2. The services we provide
We are an IRS-registered paid tax return preparer. Depending on your proposal, we may perform any of the following:
- Federal and state individual income tax return preparation
- Business income tax return preparation, including Schedule C, Form 1065, Form 1120-S, Form 1120, Form 1041 and Form 990
- Amended returns, and prior-year and back-tax returns
- Monthly bookkeeping and financial statement preparation for your internal management use
- Catch-up and clean-up bookkeeping
- Payroll processing and payroll tax filings
- Forms 1099-NEC and 1099-MISC filing, and sales tax return filing
- Tax planning, projections, and quarterly estimated tax calculations
- S-corporation election (Form 2553) preparation and reasonable-compensation analysis
- Employer identification number (Form SS-4) applications
- IRS and state notice review, written response assistance, and penalty abatement request letters
- IRS transcript retrieval and analysis
3. What we expressly do not provide
- Audit, review, compilation, attest or assurance services. We prepare financial reports from the records you give us, for your internal management use. We do not audit, review, or compile financial statements, and we express no opinion or any form of assurance on them.
- Legal advice. We do not give legal opinions, draft contracts or governing documents, or advise on disputes. If a question turns on the law rather than the tax treatment of your facts, we will tell you to see an attorney.
- Investment advice. We do not recommend securities, evaluate portfolios, advise on insurance, or sell any financial product.
- Representation before the IRS. A preparer holding only a preparer tax identification number has, in the IRS’s own words, no authority to represent clients before the IRS, and the limited-practice categories in 31 CFR 10.7(c) do not cover a paid preparer acting for a client. We can read a notice and draft a written response for your signature. We cannot appear for you, or deal with IRS Appeals, revenue officers or IRS Counsel.
4. Who may become a client
You must be at least 18, able to enter a contract, and a United States taxpayer or the authorised representative of one. Engaging us for a business, trust or estate confirms you may bind it. We work entirely online: no in-person meetings, no public office, no visits, ever.
We prepare federal returns nationwide. Some states require a preparer to hold a registration or permit before preparing returns for their residents, or even before advertising those services, and we prepare a state’s returns only where we are permitted to. We do not prepare Oregon personal income tax returns. If your state requires a registration we do not hold, we will say so before you pay anything and decline the work.
5. How an engagement is formed
Prices and descriptions on this website are general information, not an offer, and no page of this site creates a client relationship. An engagement forms in four steps:
- Proposal. We send a written proposal naming the services, tax years, entities, forms and states covered, the flat fee, and the exclusions.
- Written acceptance. You accept it electronically or by email.
- Payment. You pay the deposit or first invoice it describes.
- Confirmation. We send an engagement confirmation email. The engagement begins then, not before.
Anything outside that scope is a separate engagement, quoted and accepted the same way. We never do extra work and invoice for it afterwards.
6. Your responsibilities
A return is only as good as the facts behind it, and most of them live with you. You agree to:
- Give us complete and accurate information, including income we would not otherwise see.
- Send documents through the secure portal by the cutoffs in section 8, and answer our questions promptly.
- Review the return carefully before authorising us to file it. You are legally responsible for its contents.
- Sign Form 8879, IRS e-file Signature Authorization. We cannot e-file without it.
- Keep your own source documents and substantiation for as long as a tax authority may examine the return.
- Pay the tax and estimated payments on time. We calculate them; only you can pay them.
- Tell us promptly if your circumstances change, a notice arrives, or something you gave us turns out to be wrong.
7. Our responsibilities and standard of care
We will perform the services in your proposal with the reasonable care and skill of a competent paid tax return preparer, consistent with the duties that apply to us under Treasury Department Circular No. 230 and applicable law. We will keep you informed, say plainly when something falls outside what we may do, and tell you if we notice an error in a return, including one prepared elsewhere.
We work from the information you provide. We do not independently verify, examine or confirm it, and we are not responsible for a result caused by information that was wrong, incomplete or withheld. Where the law is unsettled we explain the choice and let you decide. Where a position is one we cannot support, we say so in writing and may decline the return.
8. Document deadlines and filing-season cutoffs
For us to guarantee filing by an original deadline, your complete information — every document, every question answered — must reach us by these cutoffs:
| Return | Original deadline | Complete information due to us |
|---|---|---|
| Partnership (1065) and S-corporation (1120-S) | March 15 | February 20 |
| Individual (1040), C-corporation (1120), trust and estate (1041) | April 15 | March 20 |
| Extended returns of any type | September 15 or October 15 | 30 days before the extended deadline |
If it arrives later we will still try, but we may place the return on extension instead and will tell you when we do. Extensions are filed free for clients.
An extension gives you more time to file, not more time to pay. Tax owed is still due on the original deadline, and interest and penalties can accrue from that date even with a valid extension on file. We estimate what to pay with it; making the payment is yours. See the IRS guidance on getting an extension to file.
9. Fees, invoicing and payment
Fees are flat, quoted in writing before work starts, and cover exactly what the proposal lists. Additional state returns, additional entities, amended returns, standalone extension filings, catch-up bookkeeping and out-of-scope advisory work are priced separately and never added without your written approval. We do not deduct our fee from your refund and do not offer refund-transfer products.
| Service | When you pay |
|---|---|
| Tax return preparation | Half on accepting the quote, the balance before we transmit the e-file |
| Monthly bookkeeping and payroll | In advance, on the first business day of each month |
| Project and advisory work | As set out in that proposal |
We accept credit and debit cards and ACH bank transfer, and payment by check on request. Invoices are due on receipt and late 15 days after the invoice date. Late balances may carry a service charge of 1% per month, or your state’s maximum if lower.
If an invoice is 15 days past due we may pause work after written notice, and we will not transmit a return or filing while the fee for it is unpaid. Nothing is deleted, and we resume on payment — but a deadline that passes during a pause for nonpayment is not our responsibility. We may change published prices at any time; a change never affects a proposal already accepted, and ongoing bookkeeping and payroll clients get 30 days’ written notice and may cancel first. Refunds are governed by our payment, refund and guarantee policy.
10. Electronic communication and signatures
You consent to receive contracts, invoices, notices, returns and disclosures electronically, and agree an electronic signature has the same effect as a handwritten one under the federal Electronic Signatures in Global and National Commerce Act and the Utah Uniform Electronic Transactions Act, Utah Code Title 46, Chapter 4. You need a current browser, an email account you check, and the ability to open and save PDFs. You may withdraw consent by writing to support@xelvontax.com, though that will usually end the engagement.
Never send a Social Security number or a tax document by ordinary email. Plain email is not secure. We will not accept tax documents that arrive that way and will ask you to resend them through the encrypted portal. Email is for questions and scheduling; the portal is for anything with identifying or financial information on it.
Because we are never physically with you, e-signing Form 8879 is a remote transaction. Under IRS Publication 1345, our software must first verify your identity using third-party data and knowledge-based authentication questions. That check may create a “soft inquiry” on your credit report, which does not affect your credit score and is not reported to lenders as a credit application. The IRS is not given view of or access to your credit report, and neither the credit reporting company nor the identity-verification provider is given access to your tax information. Fail the questions three times and federal rules require a handwritten signature instead.
11. Third-party providers and the portal
We rely on established providers for tax preparation software, e-filing, the encrypted portal and document storage, e-signature, payroll, payments, email and hosting. We choose them on their security posture and require them by contract to protect what we entrust to them. We do not sell your information.
Your use of the portal is also subject to that provider’s terms and privacy policy, which we identify on request. Beyond reasonable care in choosing and overseeing a provider, we are not responsible for its acts or omissions, or for an outage at a provider, the IRS or a state agency. Our programme is on our security page.
12. Confidentiality, privilege and section 7216
We treat what you tell us as confidential, and federal law goes further for tax return preparers. Under 26 CFR 301.7216-3, we may not use or disclose your tax return information beyond preparing and filing your return unless you first sign a separate written consent. Those forms are published in full, before you are ever asked to sign one, on our consent forms page.
Accepting these Terms is not a consent under section 7216. Neither is accepting our Privacy Policy or ticking any box on this site. A section 7216 consent is always a separate document signed on its own, and signing one is never a condition of any service. If you decline, we prepare your return exactly the same way.
Confidentiality is not privilege. The limited privilege in Internal Revenue Code section 7525 covers only a person authorised to practise before the IRS under 31 U.S.C. section 330. We are not, so no such privilege attaches to what you tell us, and attorney-client privilege does not apply because we are not a law firm. If you need a privileged conversation, have an attorney engage us. We may also disclose information where the law requires it — a valid subpoena, court order or lawful IRS request.
13. Record retention and your documents
We keep copies of the returns we prepare and their supporting workpapers for seven years from the filing date, then securely destroy them. Signed Forms 8879 are kept for at least the three years federal rules require, and in practice the full seven.
Our workpapers — calculations, checklists, research and notes — are our property. The documents you gave us remain yours, and we return copies of them, and of any return we filed, on written request at no charge, whether or not you are still a client. We may withhold a return we have prepared but not been paid for; we will never withhold your own documents.
14. Termination
Either of us may end an engagement at any time by written notice, and you need no reason. We would generally do so only for nonpayment, a breakdown in cooperation, a position we cannot support, or where continuing would breach a professional or legal duty.
We then stop work and invoice for services performed, credited against anything already paid. Monthly bookkeeping and payroll end at the close of the month in which notice is given. We return your documents as described in section 13 and, on request, provide a written handover summary for your next preparer. A filing deadline does not pause because an engagement ends, and after termination it is yours to meet.
15. No guarantee of any tax outcome
We do not guarantee or predict any particular result: not the size of a refund or the tax you will owe, not that a deduction or credit will be allowed, not that a return will escape examination, and not the outcome of any examination, notice or appeal. Tax authorities decide those things. Any projection is our best judgement on the facts and law as they stand that day, and law changes — sometimes retroactively.
16. Limitation of liability
To the fullest extent the law allows, our total liability for all claims arising out of or relating to an engagement, on any legal theory, is limited to the fees you actually paid us for the specific engagement giving rise to the claim. Neither of us is liable for indirect, incidental, special, consequential, exemplary or punitive damages, or for lost profits, business, data or opportunity. Except under the accuracy guarantee in section 18, we are not liable for tax, interest or penalties you would have owed anyway had the return been right first time. Any claim must be brought within one year of the date you knew or should have known of the facts behind it.
Nothing here limits liability that cannot lawfully be limited — including for fraud, fraudulent misrepresentation, wilful misconduct or gross negligence, and any liability your state’s consumer protection law does not permit us to limit. Where a limitation here is unenforceable under your state’s law it does not apply to you, and the rest stands. These limits do not reduce what we pay under the accuracy guarantee.
17. Indemnification
You agree to indemnify and hold harmless Xelvon Tax Advisors LLC, its members and personnel from any claim, penalty, interest charge, loss or reasonable cost, including legal fees, arising from information you gave us that was false, incomplete or misleading, information you withheld, a position you directed us to take against our written advice, or your misuse of this site or the portal. This does not apply to anything caused by our own error, or where your state’s law does not permit it.
18. The accuracy guarantee
What is guaranteed: the accuracy of our own calculations and data entry on the information you supply. What we pay: if a mathematical or data-entry error by us causes an IRS or state penalty or interest charge you would not otherwise have owed, we pay that penalty and interest, amend the return at no charge, and handle the written correspondence at no charge.
Not covered: the underlying tax you legitimately owe; anything caused by information not given to us, given to us incorrectly, or arriving after the cutoffs in section 8; a position you asked us to take against our written advice; a change in law or agency interpretation after filing; a defect in third-party software or an agency system; and the outcome of an examination of a judgement-based position. Cap: the greater of the fees you paid for that engagement or $2,500 per return. Deadline and process: email every page of the notice to support@xelvontax.com within 30 days of the date printed on it; we respond within 10 business days and pay any covered amount within 30 days of confirming the claim.
This is an accuracy guarantee. It is not a satisfaction guarantee, a money-back guarantee or a free trial, and it guarantees no tax outcome. Full terms are in our payment, refund and guarantee policy.
19. Dispute resolution and arbitration
Talk to us first. Email hello@xelvontax.com describing the problem and what you would like us to do. Both of us agree to negotiate in good faith for 30 days. Most problems end here.
If that fails, any dispute arising out of or relating to these Terms or our services will be resolved by binding individual arbitration administered by the American Arbitration Association under its Consumer Arbitration Rules, before one arbitrator, seated in the State of Utah or, at your election, held entirely by videoconference so you need not travel. The arbitrator may award any relief a court could award you individually, and judgment may be entered on the award in any court with jurisdiction.
Small claims. Either of us may instead bring an individual claim in a small claims court with jurisdiction. Class action waiver. Claims must be brought individually; neither of us may bring a class, collective, consolidated or representative action, and the arbitrator may not preside over one. If that waiver is unenforceable for a claim, that claim proceeds in court and this section still governs the others.
You can opt out of arbitration. Email hello@xelvontax.com within 30 days of first accepting these Terms with your name and a statement that you are opting out of the arbitration clause. That is all it takes. It costs nothing and will never affect the service you receive. If any provision of this section is unenforceable under your state’s law, it does not apply to you.
20. Governing law
These Terms and any dispute arising from them are governed by the laws of the State of Utah, without regard to conflict-of-laws rules. Where a claim is not subject to arbitration, both of us submit to the exclusive jurisdiction of the state or federal courts located in Utah. You keep the benefit of any mandatory consumer protection law of the state where you live.
21. Events outside our control
Neither of us is liable for a failure or delay caused by something outside our reasonable control: natural disaster, epidemic, war, civil unrest, failure of the power grid or the internet, a cyberattack occurring despite reasonable safeguards, a government shutdown, or an outage or e-file suspension at the IRS or a state agency. We will tell you promptly and resume as soon as we can. Deadlines set by law are not ours to move; where one is at risk we help you file an extension.
22. Assignment, severability and entire agreement
You may not assign your engagement without our written consent. We may assign these Terms to a successor to our business on written notice, provided it is bound by them. If a provision is held invalid, it is modified to the least extent needed to make it enforceable, or removed if it cannot be, and the rest remains in force. Not enforcing a provision once does not waive it. There are no third-party beneficiaries.
These Terms, your accepted proposal, our Privacy Policy, our payment, refund and guarantee policy, our disclaimers, and any section 7216 consents you separately sign are the entire agreement between us, replacing earlier discussions on the same subjects.
23. How we change these Terms
We may update these Terms as our services, providers or the law change. The current version always sits at xelvontax.com/legal/terms with its effective date at the top, and the previous version is available on request. If a change materially affects your rights we email current clients at least 14 days beforehand. Changes are not retroactive: the version in force when you accepted your proposal governs that engagement to completion.
24. How to contact us
We are an online-only firm with no public office and no in-person meetings. Reach us Monday through Friday, 9:00 a.m. to 6:00 p.m. Mountain Time, year-round, with extended hours from late January through April 15.
- General questions and new clients
- hello@xelvontax.com
- Existing clients and active engagements
- support@xelvontax.com
- Invoices and refunds
- billing@xelvontax.com
- Privacy and data requests
- privacy@xelvontax.com
- Security reports
- security@xelvontax.com
- Accessibility feedback
- accessibility@xelvontax.com
- Telephone
- (435) 341-4014
Formal legal notices should go to hello@xelvontax.com, addressed to the Managing Member, Joseph Edwin Fox. We acknowledge them in writing and will provide a postal address for service on request. Notices to you go to the email address on your client record, so keep it current. If anything here is unclear, ask before you sign.