Prototype only. Nothing here is a public launch. No data is sent anywhere. No filing is done here, and no tax advice is given here.
What is it? A done-for-you sales tax filing service for a small seller registered in one state, filing monthly or quarterly. We confirm registration and filing frequency, track the due date, collect sales totals, prepare and file the return on the state portal, remit from the seller bank account to the state directly, keep proof of filing, and handle routine state notices.
Who pays? A small retailer or e-commerce seller registered for sales tax in one state, filing monthly or quarterly, with low enough volume that the big multi-state platforms feel expensive, and high enough volume that paying $99 a month beats filing it themselves every period.
What problem does it solve? A missed filing costs money even in a quiet month. In Texas, a late report draws a flat $50 late filing fee per report, even if no tax is owed, plus percentage penalties and interest. Most states still require a zero return. The penalty figures on this page are illustrative examples from published guides, not a calculation for any real business.
What would the customer receive? Registration and filing frequency confirmed for one state, due date tracked with reminders, return prepared and filed on the state portal, payment remitted from their bank account to the state directly, proof of filing kept for every period, routine state notices handled, and zero returns filed too.
Why would they buy ours? One flat monthly price for the filing to be done, instead of a $39 a month platform plus $50 per filing, or an Avalara plan with a 3-state minimum. Whether that gap is a real buying gap or just a price point nobody wants is unproven.
What would it cost? PROPOSED pricing, not validated: $99 a month for a monthly filer in one state, $129 a month with permit renewal tracking and priority notice triage. Posted price, self-serve checkout, no negotiation. Cancel any time.
What evidence supports it? Incumbents already sell filing at published prices: Avalara $79 per state per month with a 3-state minimum, TaxJar $39 a month plus $50 per return, Numeral $75 per return filed, AccurateFile $129 a month, Remit $90 per state per month. That proves some sellers pay for filing. It does not prove they will switch to a new, unknown, single-state provider. Links are in Research and evidence below.
What is still unproven? Zero direct buyers were found in public search for this narrow service. No seller has said it will pay $99 a month for this entrant. The $35 per-customer labour cost and the $1,000 a month EA or CPA retainer are assumptions, not quotes. Insurance is not costed. Customer acquisition cost, sales cycle, churn, and reachability are all UNKNOWN.
What happens next? Smallest validation experiment: a no-contact test asking for a refundable $1 reservation or a paid pilot filing at $99 a month, after an EA or CPA partner agrees to be preparer of record and quotes the real labour and retainer. Kill criterion: kill or hold if no qualified EA or CPA partner agrees to be preparer of record with real quotes, or if no independent buyer puts down a refundable $1 reservation or pays for a pilot filing, or if insurance and errors policy are not costed. Do not build, do not file for anyone, and do not give tax advice until the EA or CPA gate is met.
A done-for-you sales tax service for a small seller registered in one state who files monthly or quarterly. We confirm your registration and filing frequency, track the due date, collect your sales totals, prepare and file the return on the state portal, remit from your bank account to the state directly (money never passes through us), keep proof of filing, and handle routine state notices.
One state first, on purpose. Every state has its own threshold, rate, frequency, portal, and penalty. A 50-state product on day one is a different business.
A small retailer or e-commerce seller registered for sales tax in one state, filing monthly or quarterly, with low enough volume that the big multi-state platforms feel expensive, and high enough volume that paying $99 a month beats filing it yourself every period.
Not tax advice. This service does not give tax advice and does not make taxability rulings. Returns are prepared under a qualified preparer of record, an Enrolled Agent or CPA firm, with a PTIN. Audit and appeal matters are referred to a CPA or Enrolled Agent. No filing happens, and no advice is given, until that EA or CPA partner is in place. Do not treat anything on this page as tax advice.
Illustrative penalty examples only, from published guides, not tax advice and not a calculation for any real business. Penalty rules differ by state and change over time.
In Texas, a late sales tax report draws a flat $50 late filing fee per report, even if no tax is owed. Skipping a zero return triggers the same $50 penalty. On top of that, the penalty is 5 percent if 1 to 30 days late and 10 percent after 30 days, up to 20 percent after a notice, plus interest from day 61 (7.75 percent in 2026). Returns are due on the 20th of the month following the reporting period.
Other states are worse in their own way. Late filing and late payment penalties range from the flat $50 in Texas to tiered rates climbing to 29 percent in Washington and a 30 percent cap in New York. In roughly half of all states, filing on time earns a small vendor discount, typically 0.25 to 5 percent, and missing by even one day forfeits it. Most states still require a zero return.
| Plan | Price | What it covers |
|---|---|---|
| Monthly filer | $99 a month | One state, monthly filing, proof of filing, routine notice handling |
| Monthly filer plus | $129 a month | One state, monthly filing, plus permit renewal tracking and priority notice triage |
Posted price, self-serve checkout, no negotiation. Cancel any time.
Avalara Select Core Compliance: $79 per state per month, 3-state minimum, registration $403 per location. TaxJar: Starter $39 a month, AutoFile $50 per return on Starter. Numeral: $75 per return filed, $150 one-time registration per state. AccurateFile: Core Plan $129 a month, sales tax filing every period plus permit renewal tracking. Remit: monthly filing $90 per state, registration $300 per state. White Glove Accounting: monthly packages start at $200. TaxCloud: Starter $19 a month, filing from $39 per return. Hands Off Sales Tax: $55 per filing, Essentials Plus $75 per filing.
The gap this tests is narrow: a single-state seller who does not want a $39 a month platform plus $50 per filing, or an Avalara plan with a 3-state minimum, and who would rather pay one flat monthly price for the filing to be done. Whether that gap is a real buying gap or just a price point nobody wants is unproven.
Sources checked 2026-11-11, public web only. No one was contacted. Zero direct buyers were found for this narrow service.
Penalty sources, illustrative examples: Texas Comptroller rules, via LegalClarity guides, LegalClarity Texas deadlines guide and LegalClarity Texas due dates guide: flat $50 late filing fee per late report, even if no tax is owed, 5 percent penalty 1 to 30 days late, 10 percent after 30 days, up to 20 percent after a notice, interest from day 61 at 7.75 percent in 2026, returns due on the 20th of the month following the reporting period. Commenda guide, Commenda sales tax penalties guide: late penalties range from the flat $50 in Texas to tiered rates climbing to 29 percent in Washington and a 30 percent cap in New York. LegalClarity filing guide, LegalClarity filing guide: in roughly half of all states filing on time earns a small vendor discount, typically 0.25 to 5 percent, and missing by even one day forfeits it. These figures are illustrative examples from published guides, not tax advice.
Competitors, with published prices checked 2026-11-11: Avalara Select Core Compliance, $79 per state per month, 3-state minimum, registration $403 per location. TaxJar, Starter $39 a month, AutoFile $50 per return on Starter. Numeral, $75 per return filed, $150 one-time registration per state. AccurateFile, Core Plan $129 a month, sales tax filing every period plus permit renewal tracking, AccurateFile, which states returns are prepared under a PTIN, it is not a CPA firm, and audits and appeals are referred to a CPA or Enrolled Agent. Remit, monthly filing $90 per state, registration $300 per state, Remit, which states it is a filing and compliance administrator, not a CPA firm, and it does not give tax advice or make taxability rulings. White Glove Accounting, monthly packages start at $200. TaxCloud, Starter $19 a month, filing from $39 per return. Hands Off Sales Tax, $55 per filing, Essentials Plus $75 per filing.
Honest limitations: No dated public post was found from a small seller saying it wants to hire someone to file sales tax monthly, or asking for a filing service. Incumbent prices prove some sellers pay for filing in general, not that any seller will buy from this entrant. A related lead, not verified against Shopify in this research: a Quaderno guide states Shopify automated filing ends, filing returns for sales made through 31 December 2026, after which the seller files or uses a filing service. Treat that as a lead to verify, not as a verified fact. The $35 per-customer labour cost, the $1,000 a month EA or CPA retainer, and the $2,000 a month fixed cost are assumptions, not quotes. Insurance is not in the $2,000 and must be costed separately. No count of single-state monthly filers in any state was found. The 36.2 million small businesses figure is a headcount, not reachability. Customer acquisition cost, sales cycle, and churn are all UNKNOWN.
ILLUSTRATIVE and FICTIONAL. This sample is fictional throughout. No real business, no real state, no real filing, no real tax due.
Fictional business: Fictional Corner Shop LLC. Fictional state: Fictional State. Reporting period: October 2026. Filing frequency: monthly.
| Item | Amount |
|---|---|
| Taxable sales, fictional | $12,400 |
| Tax due, fictional | $1,023 |
| Late penalty | $0, filed on time |
| Interest | $0 |
| Total remitted to the state, fictional | $1,023 |
Filed date, fictional: 18 November 2026. Proof of filing kept on record. If this return had been filed late, even with zero tax owed, the illustrative fictional state penalty in this example would follow the Texas pattern: a flat $50 per late report. This is an illustrative example only, not tax advice, and no filing was made.
Arithmetic only, on stated assumptions, not quotes. Fixed outsourced cost: $2,000 a month (hosting and portal access $200, outsourced support and notice triage $800, EA or CPA retainer $1,000). Per-customer variable cost: $35 a month for outsourced preparation and filing labour, plus about $3 in payment fees. Both the $35 and the $1,000 are assumptions, not quotes, and must be replaced with real numbers from a preparer partner. Insurance is not in the $2,000 and must be costed separately.
If the real labour cost is $60 instead of $35, the math gets materially worse. If it is $20, it gets better. The per-filing model fails on its own: at $75 per filing for a quarterly filer, 3,789 filings a year are needed for $10,000 a month owner income. The monthly subscription is the only shape that reaches the goal in the low hundreds of customers.
Kill or hold if any of these three gates fails. Gate 1: no qualified EA or CPA partner agrees to be preparer of record and quotes the per-customer labour and retainer, so the $35 and $1,000 assumptions cannot be replaced with real numbers. Gate 2: no independent buyer puts down a refundable $1 reservation or pays for a pilot filing at $99 a month. Zero direct buyers were found in public search for this narrow service, so the validation test is the whole point. Gate 3: insurance and errors policy are not costed. Do not build, do not file for anyone, and do not give tax advice until gate 1 is met.
This form is a prototype demo only. Nothing you enter is sent, stored, or processed, and no real request was received. No filing was made and no tax advice was given.