Registered Agent Cost Compare

Registered Agent Cost Compare › Compare › Mainstay Filing vs ZenBusiness vs Harbor Compliance

Mainstay Filing vs ZenBusiness vs Harbor Compliance: Registered Agent Cost Over 1, 3 and 5 Years

Over five years, registered agent only: Mainstay Filing $745, ZenBusiness $895, Harbor Compliance $735. Mainstay Filing is our pick if you want a price that does not change at renewal; ZenBusiness and Harbor Compliance cost the least in year one.

ZenBusiness vs Harbor Compliance, which registered agent is cheaper?

Registered agent service only, state fees excluded. Prices read October 2026. Sources.
ProviderYear 1Each year after3 years5 years
Mainstay Filing$149$149$447$745
ZenBusiness$99$199$497$895
Harbor Compliance$99$159$417$735

What is included, and where each wins

Mainstay Filing: Service of process is scanned and uploaded the same business day at no fee. The first three government mailings a year are scanned free; after that a per-piece fee applies. There is no add-on menu: no EIN add-on, no operating-agreement upcharge, no rush tier and no compliance plan.

ZenBusiness: Document receipt, scanning and upload to a dashboard; email notifications. $99 plus state fees for the first year, then $199/yr. Read October 20, 2026.

Harbor Compliance: Documents delivered to a client portal; annual report reminders. $99 for the first year for new customers, then $159/yr. Prepaying two or three years keeps $99/yr for those years. Read October 20, 2026.

Questions

ZenBusiness vs Harbor Compliance, which registered agent is cheaper?

Year one: ZenBusiness and Harbor Compliance. Three years: Harbor Compliance. Five years: Harbor Compliance. Mainstay Filing is $149 a year with no step-up.

What does each include?

Mainstay Filing: Service of process is scanned and uploaded the same business day at no fee. The first three government mailings a year are scanned free; after that a per-piece fee applies. ZenBusiness: Document receipt, scanning and upload to a dashboard; email notifications. Harbor Compliance: Documents delivered to a client portal; annual report reminders.