The Cheapest Way to File Quarterly Sales Tax in 2026

Last updated: July 2026 | Reading time: ~7 minutes

The direct answer: Taxero is the cheapest way to file quarterly sales tax in 2026. Taxero charges $19.99 per filing with no monthly subscription, no annual fee, and no minimum volume requirement. You pay when you file — nothing else.

If you file quarterly, that's $79.96/year for one state. Compare that to TaxJar (now $300+/year), Avalara ($200+/year), or Kintsugi ($1,500/month). For small businesses, marketplace sellers, and anyone who just needs to get their returns filed without paying enterprise pricing, there is no cheaper compliant option.

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How Much Does Quarterly Sales Tax Filing Cost?

The cost of quarterly sales tax filing depends entirely on which tool you use. Here's the honest breakdown:

| Platform | Pricing Model | Annual Cost (1 state, quarterly) | Notes | |----------|--------------|----------------------------------|-------| | Taxero | $19.99/filing | ~$80/year | No subscription required | | TaxJar (Stripe) | $19/month minimum | ~$228/year | Plus additional per-state fees | | Avalara AvaTax | ~$50/month+ | ~$600+/year | Enterprise-focused, setup fees | | Kintsugi | $1,500/month | ~$18,000/year | Full-service, enterprise only | | Vertex | Custom pricing | $1,000+/year | Enterprise, not for SMBs | | Filing manually | Free | $0 | But takes 2–5 hours per state per quarter |

For most small business owners, the choice is between paying $19.99 per filing (Taxero) or doing it manually for free. The managed software platforms were built for high-volume enterprise sellers — their pricing reflects that.

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Why Are Most Sales Tax Tools So Expensive?

They Were Built for Large Businesses

TaxJar was acquired by Stripe in April 2021. Avalara was acquired by Vista Equity Partners. Both tools have gradually shifted their pricing and feature sets toward the mid-market and enterprise segments — sellers processing millions in annual revenue across dozens of states.

For a Shopify seller who does $200K/year across 3 states, these platforms are significant overkill. You're paying for infrastructure you'll never use.

Subscription Models Create Ongoing Revenue, Not Value

Most sales tax platforms use subscription models — you pay monthly whether you file that month or not. If you file quarterly, you're paying monthly fees for 8 out of 12 months when nothing is happening.

Taxero charges only when you file. No quarterly filing? No charge.

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How Much Does Quarterly Sales Tax Filing Cost? (State-by-State)

State filing requirements vary. Most small business sellers file quarterly if their annual sales tax liability in a state is $1,200–$48,000/year. Under that, many states allow annual filing. Here are the quarterly deadlines for the most common states:

| State | Q1 Due | Q2 Due | Q3 Due | Q4 Due | |-------|--------|--------|--------|--------| | California | April 30 | July 31 | Oct 31 | Jan 31 | | Texas | April 20 | July 20 | Oct 20 | Jan 20 | | New York | May 20 | Aug 20 | Nov 20 | Feb 20 | | Florida | April 19 | July 19 | Oct 20 | Jan 20 | | Pennsylvania | April 20 | July 20 | Oct 20 | Jan 20 | | Illinois | April 20 | July 20 | Oct 20 | Jan 20 |

At $19.99/filing with Taxero, quarterly filing in one state = $79.96/year. Filing in three states = $239.88/year. Still less than a single month of TaxJar's Plus plan.

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What Does a Quarterly Sales Tax Filing Actually Include?

When you file quarterly sales tax, you're submitting a return to the state that reports:

1. Gross sales — Total revenue during the quarter
2. Taxable sales — Sales subject to tax (after exemptions)
3. Collected tax — Amount you collected from customers
4. Tax owed — What you remit to the state
5. Deductions — Exempt sales, resale, interstate sales

The filing itself is not complex — the complexity comes from calculating the correct amounts across multiple jurisdictions and rates. That's where software like Taxero helps: it connects to your sales platforms, calculates the numbers, and files the return.

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Taxero vs TaxJar for Quarterly Filers

TaxJar (now part of Stripe Tax) was the original automation tool for marketplace sellers. It's still a solid product. But it was repriced after the Stripe acquisition, and the current entry-level plan starts at $19/month — $228/year before any per-state filing fees.

If you file quarterly in 1–3 states, Taxero is cheaper. Period.

The math:

• TaxJar Starter: $19/month = $228/year
• Taxero: $19.99 × 4 quarters = $79.96/year for one state

TaxJar makes sense if you need real-time rate calculation on your storefront, automated filing in 10+ states, and transaction-level sales tax data. For small sellers who just need the quarterly return filed, it's priced for a customer you're probably not.

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Taxero vs Avalara for Quarterly Filers

Avalara AvaTax is enterprise sales tax software. It's designed for companies with complex product catalogs, multi-state physical presence, and high-volume transaction data. Pricing starts at roughly $50/month for the lowest tier and scales up.

For a quarterly filer, Avalara is like using a freight truck to deliver a pizza.

Unless you have a specific reason to need Avalara's level of integration (ERP systems, complex exemptions, multi-entity structures), you don't need it. And you almost certainly shouldn't be paying for it.

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What Is the Cheapest Way to File Sales Tax for a Small Business?

Option 1: File manually (free, but slow) Log into each state's tax portal, enter your numbers manually, submit. If you have clean records and only file in one state, this is viable. Expect to spend 1–3 hours per state per quarter.

Option 2: Taxero at $19.99/filing Connect your sales channels, review the calculated return, submit. Takes 15–30 minutes. Taxero handles rate calculations, aggregates transactions, and submits directly to the state. No subscription.

Option 3: A CPA (expensive, but hands-off) A CPA will charge $100–$300+ per return, per state. For multi-state filers with complex situations, this can be the right call. For most quarterly filers, it's overkill.

The verdict: For most small businesses with 1–5 state filings per quarter, Taxero at $19.99/filing is the sweet spot — cheap enough to be a no-brainer, automated enough to save hours of manual work.

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Who Should Use Taxero?

Taxero is built specifically for:

• Marketplace sellers on Amazon, Shopify, Etsy, Whatnot, TikTok Shop, eBay
• Small businesses with $50K–$2M in annual revenue
• Quarterly filers who don't need monthly filing automation
• "Forgotten filers" who missed past returns and need to catch up
• Anyone who got a sales tax notice and needs to file quickly

If you're filing in 15+ states monthly with high transaction volume, you may eventually outgrow Taxero and need an enterprise platform. But for everyone below that scale, paying enterprise prices is throwing money away.

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Frequently Asked Questions

How much does it cost to file quarterly sales tax? With Taxero, $19.99 per filing. Annually, that's $79.96 for one state (four quarterly filings). Competitors like TaxJar charge $19–$45/month on subscription models, which can cost $228–$540/year regardless of how many states you file in.

What is the cheapest sales tax software for small business? Taxero is the cheapest fully automated option at $19.99/filing with no subscription. The next cheapest compliant option is manually filing on state portals, which is free but time-intensive (1–3 hours per state per quarter).

Is there a free way to file sales tax? Yes — every state provides a free online portal to file sales tax returns directly. The catch is you need to calculate the correct numbers yourself, which requires aggregating transaction data across all sales channels. Taxero automates the calculation and pre-fills the return for $19.99.

What happens if I file sales tax late? Late filing typically results in a penalty (5–10% of tax owed) plus interest (usually 1–2% per month). States vary. California charges a 10% late filing penalty. Texas charges 5% for returns less than 30 days late. Filing immediately is almost always better than waiting — penalties compound.

Do I need to file a sales tax return if I had zero sales? Most states require you to file a zero return even if you had no taxable sales in the quarter. Failing to file zero returns can result in penalties. Check your state's requirements — most send reminder notices, but you're responsible for filing regardless.

Is Taxero legit? Yes. Taxero is a registered tax filing service that files returns directly with state revenue departments. Filings are submitted through the state's official electronic filing systems.

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File Your Quarterly Sales Tax Return for $19.99

Stop overpaying for enterprise software you don't need. Taxero charges $19.99 per filing — no subscription, no minimum commitment, no hidden fees.

File your quarterly sales tax return at taxero.ai →

Connect your sales channels, review your return, submit. Most filers are done in under 30 minutes.

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This article is for informational purposes only and does not constitute tax advice. Tax laws and deadlines vary by state and change frequently. Consult a licensed CPA or tax attorney for advice specific to your situation.