The Washington surplus lines tax is 2% of gross premium, plus a 0.3% stamping fee. SLTax360 automates every filing so MGAs, wholesalers, and retail brokers stay compliant without manual entry.
Rates effective from 2024-01-01
| Surplus Lines Tax | 2% |
| Stamping Fee | 0.3% |
Filing surplus lines tax in Washington means navigating Washington's specific submission channel, fee structure, and deadline rules. SLTax360 abstracts that away: we maintain the Washington rate configuration in a versioned table and apply it automatically to every invoice you submit.
Each Washington transaction we file is itemized into its components — surplus lines tax (2%), stamping fee (0.3%) — so your audit trail shows exactly which line went where. Confirmations are retained, deadlines are tracked, and filings are reconciled against your invoice data.
Whether you're an MGA filing a handful of Washington transactions per month or a wholesaler running hundreds, the workflow is the same: upload, we file, you stay compliant. Want to verify the numbers yourself first? Run a free Washington calculation — no signup required.
A 20-minute demo will show you how SLTax360 handles your Washington volume end-to-end.