One Place for Every Surplus Lines Filing You Owe

All 50 states in one system: correct tax and fee math, every deadline, every filed report and confirmation, and payment tracking.

All 50 States & DC
Free 30-Day Trial
In Production Since 2024
17,000+
surplus lines filings processed
$44M+
in E&S premium filed
19
states filed in to date
2024
running in production since

Rates, rules, deadlines, stored reports and payment tracking for all 50 states and DC. Direct electronic filing in 23 states, generated state filings in 5 more, and prepared filings in the remaining 22 states and DC. Figures are from our own filing records. Security: each client runs in its own database, TLS 1.3 in transit, secrets in AWS SSM. Read the security page.

Who Files On SLTax360 Today

A multi-state filing bureau

Runs its entire daily filing operation on the platform (intake, filing, confirmations and client reporting) under its own brand.

A wholesale brokerage

Files its surplus lines business through SLTax360 across multiple states, with every submission reviewed before it reaches the state.

Client names are withheld until each has approved a case study. Ask on a demo call and we'll walk you through their actual filing history.

“We built SLTax360 because the existing surplus lines filing tools were either clunky, expensive, or both. Our free public calculator runs the same engine we file with. Anyone can check our math before they trust us with a filing.”

SLTax360 founder. Read our story

How It Works

From the carrier's invoice to a confirmed state filing, without anyone re-keying it

1

Send It

Forward the carrier's invoice or declarations page, drop in a spreadsheet, or push it through the API. Document AI reads the PDF and builds the transaction: premium, fees, coverage codes, risk location.

2

Review and File

Everything lands in a queue a person approves before it goes anywhere. Then it files through the state's own channel, whether that is SLTX SMART, SLIP, SLAS, OPTins, or the portal itself.

3

Watch Until Confirmed

We re-check state responses every minute and turn rejections into errors you can act on. Nothing sits marked “Filed” when the state never accepted it.

Email processing pipeline: emailed carrier documents moving through extraction, OCR, AI processing and invoice creation
Step 1: the intake pipeline. An emailed binder becomes a filing-ready record with the duration and the linked filing on every row.
Dashboard: total filings, premium and surplus lines tax with a month by month chart
Step 3: volume, premium and tax by month, so the month-end reconciliation is a glance, not a spreadsheet.

Built on the state systems you already use

SLTax360 connects to the states' own filing systems under your licence and your credentials.

SLTX SMART (Texas) SLIP (California) FSLSO (Florida) SLAI (Illinois) SLASuite (Georgia OCI) ELANY (New York) NCSLA (North Carolina) SLIP+ (SLAS clearinghouse states) OPTins (NAIC) WSLA (Washington) MNSLA (Minnesota) SLAOR (Oregon) NSLA (Nevada) Ohio ODI Kentucky eServices

These are the names of the states' filing systems. No stamping office or regulator endorses any vendor, and none is affiliated with SLTax360.

Every State. Two Levels of Automation.

You file everywhere you write business. How much of it we transmit for you depends on what the state allows.

28 states E-filing or generated state file
We transmit it to the state

Texas, California, Florida, Illinois, Georgia, New York, the SLIP+ clearinghouse states and more. The filing goes out through the state's own system, the confirmation number comes back automatically, and rejections surface as errors within the minute.

Every other state & DC Prepared filing
We prepare it, it goes into your portal

The platform applies that state's rates and rules, builds the report or form it wants, and flags what is due when. Your team submits it in your own state portal account; on a supported plan, ours does it for you. The confirmation is stored back in the same place as everything else.

You keep your own licenses and state portal logins. SLTax360 works with them, not around them. Direct e-filing exists only where a state offers a machine channel; we say plainly which states those are rather than calling everything “automated.” See the state-by-state detail.

Why Choose SLTax360

Built and run day to day by the people who file on it

Nothing Sits Falsely Filed

Florida, Georgia and the SLAS states accept an upload first and reject it days later, inside a portal nobody re-opens. We poll every minute and surface the rejection reason while there is still time to fix it.

Stop Re-Keying Carrier Documents

Forward the PDF and document AI turns it into a filing-ready transaction. It lands in a review queue your team approves. The checking step is the point, not an afterthought.

The Right Rate, in Every State

Tax rates, stamping fees, which fees are taxable, and the filing rules that differ state by state are all kept current, so nobody is checking a bulletin by hand. Our public calculator runs the same engine, free and without a signup, so you can check our math first.

Every Deadline in One Calendar

Monthly, quarterly and annual obligations across all the states you write in, on one calendar, with what is due and what is still outstanding, instead of a spreadsheet somebody has to remember to open.

Every Report in One Place

Filed reports, submitted payloads, state responses and confirmation numbers are stored together, per state and per period, whether we transmitted it or your team filed it in the portal. When an auditor or stamping office asks, the answer is already on file.

Know What Is Owed and Paid

Track tax and stamping-fee amounts owed to each state against what has actually been paid, so a filing that was submitted but never funded does not turn into a penalty later.

Also included: a documented REST API for your policy admin system or quoting portal, imports from IMS and spreadsheets, and your own dedicated database so your filings never share tables with another firm's (security controls).

Surplus Lines Filing in All 50 States & DC

Click any state for its current tax rate, stamping fee, filing rules and how we file it, or see them all at once on the state directory.

Plans for Every Filing Volume

Three service levels, from self-managed to fully managed. Pay per invoice filed, with a quote matched to your volume.

Self-Managed

Independent

Self-managed filing

  • Full platform access, all 50 states & DC
  • Direct e-filing where the state supports it
  • You control validation & reporting

"You manage your own validation & reporting: full control, no wait time for staff assistance."

Start 30-Day Free Trial
Fully Managed

Enterprise

Fully managed filing

  • Everything in Professional
  • State reports generated by our staff
  • Dedicated same-day support

"White-glove service with dedicated support for high-volume operations."

Contact Sales

Ready to See It in Your Filing Workflow?

Tell us the states you file in and we'll show you exactly how each one would run: which we transmit directly, which we prepare for your portal, and what your month would look like. About 20 minutes.

Prefer to look around first? The tax calculator is free and needs no account.