Foreign registration worksheets · Washington

2 Best Foreign Registration Services in Washington (2026): Worked Prices

After the sums, Mainstay Filing ($199) and WA Registered Agent.org ($199) lead the 2026 Washington table of foreign registration services, in that order. Registration at Washington costs $180, identical in each row, and the services themselves total $397 to $497 across three years.

Worked by the Formation Math editorial team Worksheet updated November 13, 2026

↓ Sorted by: Total cost over three years (42%), items covered per dollar (28%), then year-two change, crossover year and published detail. The method

The working so far

Charge for registering $180 sos.wa.gov (checked October 2026) as the source

Year-one totals $199 Without the state fee

Three-year spread $397 to $497 Year one plus two more years

State fees, summed over 3 years $320 Left out of the score

Year the lines meet No crossing Same ranking each year

Rows ranked by value

Ranked by score; every price comes from a company page. The $180 state fee is left out of the rows.

Wins on value

1. Mainstay Filing: best for adding a second or third state

$199 to register, $149 each year after

Year-1 price $199

Price after year 1 $149/yr

Sum of 3 years $497

Row one is Mainstay Filing. The math: $199 plus the state's fee, a free first year of registered agent, then $149 a year.

Pay $100 more than WA Registered Agent.org over three years and the recurring paperwork stops being your job.

When the free year runs out, the agent bills $149 yearly.

The price buys

Registration done for you
Registered agent with no charge in year one
The same fee in every state

Adds up

Same fee wherever you register
First-year agent service included
$199 plus the state's fee

Does not add up

Agent renews at $149, which is $50 above WA Registered Agent.org

Single-state plan

2. WA Registered Agent.org: best for the smallest annual agent total

$199 to register, $99 each year after

Year-1 price $199

Price after year 1 $99/yr

Sum of 3 years $397

WA Registered Agent.org scores second. Working: $199 over the state fee, then $99 a year.

The price buys

The Washington registration filing
Year-one agent service

Adds up

Year-one agent covered
Service fee of $199
Agent renews at $99

Does not add up

The home state still needs a different agent

Totals after 1, 2, 3 and 5 years

No.	Provider	Year 1 total	Total at year 2	Total at year 3	Total at year 5
1	Mainstay Filing	$199	$348	$497	$795	Visit Mainstay Filing Partner link. We may earn money if you buy.
2	WA Registered Agent.org	$199	$298	$397	$595	Visit WA Registered Agent.org Partner link. We may earn money if you buy.

Year one plus renewals, from the prices read on November 13, 2026. The totals keep one order for ten years.

Worksheet calculator

The calculator adds year one and the renewals for every row once you choose the years.

Washington state fees (official)

Term	Value	Where it comes from
Registration charge	$180	sos.wa.gov (checked October 2026) as the source
Annual report	$70	sos.wa.gov (checked October 2026) as the source
State side, 3 years	$320	Filing + reports + any tax

State total = filing fee + reports in years 2 and 3 + any minimum tax. Items without a fixed amount are left out of the addition.

Why row one is row one

Mainstay Filing scored above WA Registered Agent.org on items covered per dollar, a 28% term.

A foreign LLC spans two states already, so a provider that covers both scored first.

Washington foreign LLC registration fee and rules, from the source

An out-of-state LLC sends the Foreign Registration Statement to the Washington Secretary of State, Corporations & Charities Division and pays $180. Attach certificate of existence (good standing) or similar document from within the last 60 days.

Cited at: sos.wa.gov (checked October 2026) as the source

The state-fees-only case

The state's fees alone total $320 for three years, which is the floor. The table shows what each service adds ($397 to $497).

Common questions

How much does Washington take to register an out-of-state LLC?

$180 in state fees, plus $199 for a service in year one.

What do the services add up to over three years?

Service totals for three years: $397 to $497.

Which form does the registering?

The form is Foreign Registration Statement, and the Washington Secretary of State, Corporations & Charities Division receives it.

Does Washington ask for a paper from the home state?

Yes, and it must be under 60 days old: certificate of existence (good standing) or similar document.

What recurring filing comes after registration?

The annual report, which costs $70.

In what year does one service pass another in total cost?

Never in ten years: the order of the running sums does not change.

Which foreign registration service is best value in Washington?

From the top: Mainstay Filing and WA Registered Agent.org.

Related worksheets

Inputs and sources

Washington Secretary of State, Corporations, per ccfs.sos.wa.gov, August 2026.
Washington Secretary of State, Corporations, per sos.wa.gov, August 2026.
Washington yearly filing: Annual report, per sos.wa.gov, October 2026.
Washington report due date, per app.leg.wa.gov, August 2026.
Washington formation fee: Filing fee, per sos.wa.gov, October 2026.
Washington formation fee: Filing fee, per sos.wa.gov, October 2026.
Washington registered agent statute, per app.leg.wa.gov, October 2026.
Washington SOS, register a foreign, per sos.wa.gov, October 2026.
Washington SOS, fee schedules and, per sos.wa.gov, October 2026.
RCW 23.95.520, activities that are, per app.leg.wa.gov, October 2026.
RCW 23.95.505, consequences of not, per app.leg.wa.gov, October 2026.
RCW 23.95.510, foreign registration statement, per app.leg.wa.gov, October 2026.
Washington SOS, registered agents, per sos.wa.gov, October 2026.
Mainstay Filing Washington service page, read on November 13, 2026 for the inputs
WA Registered Agent.org pricing page, read on November 13, 2026 for the inputs