Zamp vs. Avalara

Zamp vs. Avalara: a side-by-side sales tax comparison.

Software that automates your sales tax and a dedicated tax team that manages it for you, finally in one service.

A 20-minute walkthrough with a sales tax specialist. See the full comparison

4.8 out of 5 on G2

  • G2 Best Support, Summer 2025
  • G2 Easiest Setup, Summer 2026
  • G2 Easiest to Do Business With, Summer 2026

Thousands of businesses already switched to Zamp.

  • Crumbl
  • Pentair
  • David
  • Underdog
  • Cult Gaia
  • Little Spoon
  • Salt & Stone
  • Tushy
  • Vapi
  • Popl
  • Nav
  • Oats Overnight
  • Four Sigmatic
  • Handwrytten
  • Culture Pop Soda
  • Pristine Auction
  • Every Day Dose
  • MoonBrew
How Zamp compares

How Zamp compares to Avalara.

Avalara is sales tax software your team runs. Zamp’s platform automates the work, and tax experts check it at every step.

  1. 01

    Who files your returns

    Zamp
    Zamp’s platform prepares and files every return, and a specialist reviews each one. You approve in one click.
    Avalara
    Your team runs Avalara’s software. A dedicated compliance team is only on the Custom plan, for $50M+ revenue.1
  2. 02

    Who registers you in new states

    Zamp
    Zamp registers you in every new state, included in your plan.
    Avalara
    Included for SST states on Core + SST. Other states are a separate service.1
  3. 03

    Who you talk to

    Zamp
    A named sales tax specialist. G2 support score 9.7.3
    Avalara
    G2 support score 6.7.3
  4. 04

    How fast you go live

    Zamp
    1 month, according to G2 reviewers.3
    Avalara
    3 months, according to G2 reviewers.3

Automated by Zamp. Checked by tax experts.

Zamp’s platform automates your registrations, filings and notices. Tax specialists and former state auditors review the work at each step, and a named point of contact answers your questions.

Book a demoHow managed works
A Zamp sales tax specialist on a headset, helping a customer.
G2 Best Support, Summer 20254.7 on G2Rated best for supportRead the Wall of Love
Features

Everything Zamp handles, feature by feature.

Software automates each step. Tax experts check the work.

Nexus tracking

Zamp watches your sales in every state and alerts you before you cross a threshold, so you register on time.

Explore nexus tracking

State registrations

Share your business details once. Zamp prepares each state’s application, and a specialist checks it before it’s filed.

Explore registrations

Filing and remittance

Zamp prepares, files and pays every return on each state’s schedule. A specialist reviews each one before you approve.

Explore filing

Notice management

Zamp logs every state notice, and your specialist answers it and sees it through to resolution.

Explore notice management

Exemption certificates

Upload a certificate once. Zamp reads it, matches it to the customer and tracks when it expires.

Explore exemptions

Integrations and calculation

Zamp connects to Shopify, NetSuite, Stripe, QuickBooks and more, and calculates the right rate for every sale.

Explore integrations
G2 reviews

G2 reviewers rate Zamp higher than Avalara.

Head-to-head scores from verified G2 reviews.3

4.8Zamp on G2
4.1Avalara on G2
  • G2 Momentum Leader, Fall 2026
  • G2 High Performer, Fall 2026
  • G2 Best Relationship, Small Business, Fall 2026
  • G2 Best Usability, Summer 2026

See the Wall of Love

Zamp vs. Avalara, side by side.

Zamp next to Avalara

Zamp’s U.S. plan next to Avalara Select, its plans for businesses under $50M revenue. Based on publicly available information as of November 1, 2026.

What you getZampAvalara
Automation plus expert reviewNexus, registrations, filings and notices, automated by Zamp and checked by tax experts.Self-serve software. A dedicated compliance team on the Custom plan ($50M+).1
Returns and remittanceEvery return filed and remitted. No per-return fees.Unlimited returns, no per-return fees.2
State registrationsHandled and included.SST states on Core + SST. Others are a separate service.1
NoticesAnswered and resolved by our team.Notice management included on Select.2
SupportA named sales tax specialist. G2 support 9.7.G2 support 6.7.3
Time to go live1 month on G2.3 months on G2.3
Switching

Switch in about a week, without a gap in filings.

Avalara stays live until Zamp is filing for you. Here’s who does each step.

  1. Step 1You + Zamp · 30 min

    Walk us through your setup.

    Your states, your systems and your Avalara account, reviewed live.

  2. Step 2You · minutes

    Connect your systems.

    Pre-built integrations, or the Zamp API.

  3. Step 3You · under a minute each

    Add your state accounts.

    Under a minute per state, encrypted.

  4. Step 4Zamp tax team

    We run in parallel.

    Returns validated side by side, no interruption.

  5. Step 5You · one click

    Approve, and you’re live.

    Approve filings in one click. That’s it.

Customer stories

Teams that switched from Avalara.

Real customers, in their own words.

HandwryttenSwitched from Avalara
“Night and day experience versus our last sales tax vendor.”

75%Less time spent on sales tax

David WachsCEO and Founder, Handwrytten

Read the Handwrytten story →
TushySwitched from Avalara
“Now, I spend maybe 15 minutes a month reconciling reports.”

~15 min.Per month on sales tax

Doreen DemyenAccounting Consultant, Tushy

Read the Tushy story →
Switching to Zamp from Avalara has been a game changer. What used to be a constant source of stress and uncertainty is now a seamless, worry-free process.
Chelsea V.Chief Operating Officer, verified G2 review
  • $500M+sales tax remitted
  • 150K+filings on time
  • 75K+notices handled
  • 97.8%of customers stayed in 2025

The Zamp Commitment

Zamp owns the outcome.

Read the terms
  • Filing commitmentIf we’re the reason a return is filed late, we cover the penalties and interest.
  • Accuracy guaranteeIf an inaccurate Zamp API result triggers an audit, we cover the tax, penalties and interest, up to 12 months of fees.

Questions about switching from Avalara.

Still have questions? Call us at 1-866-438-9267 or email us at support@zamp.com.

Book a demo

Can we switch in the middle of our Avalara contract?

Yes. The buyout applies whether you’re 2 months in or 10. We credit your remaining term to your Zamp subscription, so you never pay twice.

Will switching disrupt our filings?

No. Avalara stays live while our team sets up Zamp and runs in parallel. Your Avalara account goes offline only after our tax team confirms everything is live and accurate. Most teams switch within a week.

How is Zamp priced?

One fee for your states, quoted up front. Filings, registrations, nexus monitoring, notice management and a named specialist are included. No per-filing fees or per-state surcharges.

Who is accountable if something goes wrong?

Zamp. From nexus and registrations to filings, notices and audits, one team is accountable, and the Zamp Commitment covers penalties and interest if we cause a late filing.

Do we still need in-house sales tax expertise?

No. Zamp’s tax team works as an extension of your finance team: it handles the complexity and the day-to-day so your team doesn’t have to.

See how Zamp compares to Avalara for your business.

Book a demo. A sales tax specialist will walk through your states and systems and show you exactly what Zamp handles for you.

#1 rated support on G2

Three colleagues reviewing their accounts together at a sunlit table.