Go straight to the worksheet
Formation Math LLC service costs, worked out step by step.

Registered agent worksheets · Idaho

3 Best Registered Agents in Idaho (2026): Worked Prices

Worked out for 2026, the best-value registered agents in Idaho come to Mainstay Filing ($149/yr), ID Registered Agent.org ($99/yr) and Idaho Registered Agent.co ($99/yr), in that order. One year: $99 to $149. Three years: $297 to $447.
Worked by the Formation Math editorial team

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

Results box

Registered agent compulsory? Yes legislature.idaho.gov (checked October 2026) as the source
Totals after one year $99 to $149 Price for the year
Totals after three years $297 to $447 Includes both renewals
Annual report No fee legislature.idaho.gov (checked October 2026) as the source
Year the lines meet No break-even No change in order

Idaho rows with the arithmetic

Each row shows year one, the price after that and the three-year sum. Which agent you pick leaves state fees alone.

1
Row one

1. Mainstay Filing: best for LLCs operating in more than one state

$149 yearly; the renewal price is $149
Year-1 price $149
Renewal price $149/yr
Sum of 3 years $447

Mainstay Filing comes out on top. Working: the same $149 a year across all fifty states.

Pay $150 more than ID Registered Agent.org over three years and the recurring paperwork stops being your job.

The price buys

  • The registered office, on record
  • Three government mailings per year, scanned for free
  • Works for LLCs, corporations, LPs, LLPs and nonprofits

Adds up

  • Year 1 $149, year 2 $149
  • One account serves any state

Does not add up

  • Costs $50 more annually
  • Covers the agent role only
2
Single-state plan

2. ID Registered Agent.org: best for the smallest three-year sum

$99 yearly; the renewal price is $99
Year-1 price $99
Renewal price $99/yr
Sum of 3 years $297

Next in the working, ID Registered Agent.org: one state, $99 a year, $99 after renewal.

The price buys

  • An in-state office address
  • Served papers show up online

Adds up

  • $99 a year, flat at renewal
  • Annual price under the national row

Does not add up

  • No help outside the state
  • The annual report is not covered
3
Single-state plan

3. Idaho Registered Agent.co: best for a nearby alternative

$99 yearly; the renewal price is $99
Year-1 price $99
Renewal price $99/yr
Sum of 3 years $297

Next in the working, Idaho Registered Agent.co: one state, $99 a year, $99 after renewal.

ID Registered Agent.org publishes the same prices.

The price buys

  • An in-state office address
  • Served papers show up online

Adds up

  • $99 a year, flat at renewal
  • Annual price under the national row

Does not add up

  • No help outside the state
  • The annual report is not covered

Running sum by year

No. Provider Year 1 total Total at year 2 Total at year 3 Total at year 5
1 Mainstay Filing $149 $298 $447 $745 Visit Mainstay Filing Partner link. We may earn money if you buy.
2 ID Registered Agent.org $99 $198 $297 $495 Visit ID Registered Agent.org Partner link. We may earn money if you buy.
3 Idaho Registered Agent.co $99 $198 $297 $495 Visit Idaho Registered Agent.co Partner link. We may earn money if you buy.

Year one plus renewals, from the prices read on November 13, 2026. No break-even shows up in ten years.

Check the math yourself

How many years will you keep the company? Choose and compare.

Total over 3 years: Mainstay Filing $447, ID Registered Agent.org $297, Idaho Registered Agent.co $297. Lowest total at that point: ID Registered Agent.org.

State fees with citations

Term Value Where it comes from
LLC formation filing $100 legislature.idaho.gov (checked October 2026) as the source
Annual report No fee legislature.idaho.gov (checked October 2026) as the source
State fees added over 3 years $100 Our addition

Working: filing fee, plus the recurring report in years two and three, plus any minimum tax. The sum is the three-year state line.

The working behind Idaho

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

Coverage lifted it above ID Registered Agent.org.

Idaho registered agent rules, from the source (Idaho Secretary of State)

Every LLC must name a registered agent with an in-state street address.

An Idaho resident, or a business entity authorized to do business in Idaho. An assumed business name (DBA) cannot serve. Look up Idaho Code § 30-21-404.

The address has to be a physical street address in Idaho. P.O. boxes and commercial mailboxes are not accepted.

Quoted from: legislature.idaho.gov (checked October 2026) as the source

Filing it yourself, worked out

A qualifying owner can name themselves and pay no agent fee; state fees do not change. The rows above charge $99 to $149 a year for a Idaho address and someone to accept legal papers.

Questions

What does a registered agent in Idaho cost per year?

About $99 to $149 yearly.

What do three years of agent service cost?

$297 to $447 in service fees, with state fees on top.

Does Idaho require a registered agent for an LLC?

Yes. Every LLC must name a registered agent with an in-state street address.

Can the owner be the registered agent?

Yes, if you meet the eligibility and address rules above.

What does the state collect from the LLC each year?

Idaho expects the annual report every year at no charge, last day of the entity's anniversary month.

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

They stay in the same order for ten years.

Which registered agent is best value in Idaho?

From the top: Mainstay Filing, ID Registered Agent.org and Idaho Registered Agent.co.

Next worksheets

Registered agent worksheets, all 50 states Best registered agents overall The method

Inputs and sources

  1. Source of Idaho yearly filing: Annual report: legislature.idaho.gov, October 2026.
  2. Source of Idaho Code § 30-25-201: legislature.idaho.gov, August 2026.
  3. Source of Idaho formation fee: Filing fee: sos.idaho.gov, October 2026.
  4. Source of Idaho formation fee: Filing fee: legislature.idaho.gov, October 2026.
  5. Source of Idaho registered agent statute: legislature.idaho.gov, October 2026.
  6. Mainstay Filing Idaho service page, read on November 13, 2026 for the inputs
  7. ID Registered Agent.org pricing page, read on November 13, 2026 for the inputs
  8. Idaho Registered Agent.co pricing page, read on November 13, 2026 for the inputs