Connecticut charges $120 to form an LLC; District of Columbia charges $99. Day-one sticker price is only part of the story, since most of the real cost comes from the annual obligations that stack up each year you keep the LLC open.

Over a rolling three-year window, Connecticut runs about $939 less in total state fees than District of Columbia. Whether that gap matters depends on whether you actually operate in one of these states or are weighing a non-resident filing.

District of Columbia imposes an entity-level annual tax on every LLC ($250 minimum). Connecticut does not. For pass-through LLCs that would otherwise owe nothing at the state level, that minimum is the deciding line.

For most small operators the choice is not really between these two states at all. It is between forming where the business actually operates and trying to route through a non-resident filing. The data below shows what each option actually costs.

Formation filing fee
Connecticut $120
District of Columbia $99
District of Columbia saves $21
Year 1 total estimate
Connecticut $300
District of Columbia $599
Connecticut saves $299
Ongoing per year
Connecticut $180
District of Columbia $500
Connecticut saves $320
3-year total
Connecticut $660
District of Columbia $1,599
Connecticut saves $939

Key differences at a glance

  • District of Columbia costs $21 less to form ($99 vs $120).
  • Connecticut is $320 per year cheaper to maintain ($180 vs $500).
  • District of Columbia imposes an entity-level franchise or LLC tax that applies to pass-through LLCs. Connecticut does not.

Where each state fits

For most filers, forming in the state you actually operate from is the right call. The side-by-side below shows where the two states meaningfully diverge.

What each state offers that the other does not

Only Connecticut

  • No entity-level franchise or LLC tax

Both states

  • Online filing
  • Paid expedited tier
  • No publication requirement
  • Operating agreement not statutorily required

Three-year cost, side by side

Rough estimate of the state-facing cost to form and keep an LLC through three years. Both totals include a $100 per year registered-agent estimate.

Connecticut District of Columbia
Year 1
$300
$599
Year 2
$480
$1,099
Year 3
$660
$1,599

Running total includes the one-time filing fee and annual ongoing costs (report fee or franchise tax plus a $100/year registered agent estimate).

What it costs under your specific situation

The table below runs the same LLC through four common scenarios. "Non-resident" rows assume a typical home-state foreign LLC registration adds about $200 per year of stacked cost; the real number depends on which state you live in and ranges from $50 to over $800 depending on jurisdiction.

Scenario Year 1 Each year after 3-year total
You live in Connecticut, business operates there
No foreign LLC registration needed. You pay Connecticut fees only.
$300 $180 $660
You live in District of Columbia, business operates there
No foreign LLC registration needed. You pay District of Columbia fees only.
$599 $500 $1,599
Non-resident forming in Connecticut with operations elsewhere
You pay Connecticut's fees plus a typical home-state foreign LLC registration of about $200 per year.
$500 $380 $1,260
Non-resident forming in District of Columbia with operations elsewhere
You pay District of Columbia's fees plus a typical home-state foreign LLC registration of about $200 per year.
$799 $700 $2,199

Connecticut vs District of Columbia: full comparison

Dimension Connecticut District of Columbia
Online filing
Can you file the formation document online?
Yes Yes
Online approval time
Standard, non-expedited
5 business days 5 business days
Expedited option
Paid fast-track filing
$50 $50
Annual report
Required in addition to tax
Required, $80 Required, $300
State-imposed annual tax
Franchise, privilege, or LLC tax minimum
None $250 minimum
State income tax
On pass-through LLC income at member level
Yes Yes
Publication requirement
Newspaper publication after formation
No No
Operating agreement
Required by state statute
Recommended, not required Recommended, not required
Foreign LLC fee
Cost to register as a foreign LLC in this state
$120 $220
State sales tax
General statewide rate
6.3% 6.0%

Taxes in Connecticut and District of Columbia

How each state handles entity-level tax on LLCs. Pass-through classification means member-level income tax also applies at each member's residence state.

Connecticut tax

No entity-level franchise tax on LLCs. State income tax applies to member-level pass-through income. Corporate rate 7.5%.

District of Columbia tax

$250 minimum annual tax (net-income-with-minimum basis). State income tax applies to member-level pass-through income. Corporate rate 8.3%.

Ongoing compliance

The recurring filings each state requires after formation.

Connecticut

Annual report $80, due 03/31 each year. Registered agent required in Connecticut.

District of Columbia

Annual report $300, due 04/01 each year. Registered agent required in District of Columbia.

Formation process, side by side

What actually happens from the moment you start filing to the moment you're in good standing. Use this as a checklist.

Connecticut

  1. Check business-name availability on the Connecticut entity search.
  2. Appoint a registered agent with a physical Connecticut street address.
  3. File Certificate of Organization (Limited Liability Company, Domestic) for $120.
  4. Wait for approval. Online typically 5 business days. Paid expedite from $50.
  5. Adopt an operating agreement (recommended, not required by Connecticut statute).
  6. Apply for a federal EIN (free from the IRS).
  7. Open a business bank account to separate personal and business finances.
  8. File your first annual report and pay $80 when it comes due.

District of Columbia

  1. Check business-name availability on the District of Columbia entity search.
  2. Appoint a registered agent with a physical District of Columbia street address.
  3. File Articles of Organization for Domestic Limited Liability Company (Form DLC-1) for $99.
  4. Wait for approval. Online typically 5 business days. Paid expedite from $50.
  5. Adopt an operating agreement (recommended, not required by District of Columbia statute).
  6. Apply for a federal EIN (free from the IRS).
  7. Open a business bank account to separate personal and business finances.
  8. File your first annual report and pay $300 when it comes due.

Before you pick either state

A few things that apply no matter which state you choose. These trip up enough first-time filers that they're worth stating explicitly.

Registered agent is non-negotiable. Both Connecticut and District of Columbia (and every other US state) require every LLC to designate a registered agent with a physical street address in the state of formation. You can serve as your own agent if you live in the state; otherwise a commercial agent runs $50 to $125 per year. Using your own home address makes it part of the public record.

Forming elsewhere does not escape your home state's tax. If you live and operate a business from your home state, forming the LLC in Connecticut or District of Columbia does not avoid your home state's income tax. The moment you transact business at home, your home state requires a foreign LLC registration, and state tax liability follows your residence regardless of where the entity sits on paper.

EIN applications are free. The IRS issues Employer Identification Numbers directly at no cost. Any service charging you to "get your EIN" is reselling a free form submission. Single-member LLCs with no employees technically don't need one for federal tax, but nearly every bank requires an EIN to open a business account.

Operating agreement matters more than the state you pick. A well-drafted operating agreement governs member ownership, management, profit splits, buy-sell terms, and dissolution. Without one, your LLC runs on the state's default rules, which are rarely what you want. California, Maine, Missouri, and New York require a written one by statute; every other state treats it as strongly recommended.

Agency contacts

Connecticut Secretary of the State, Business Services Division

Website
portal.ct.gov/sots
Phone
(860) 509-6003
Mail
Business Services Division, P.O. Box 150470, Hartford, CT 06115-0470
Office
165 Capitol Avenue, Suite 1000, Hartford, CT 06106
Hours
8:30 AM to 4:30 PM Eastern, Monday to Friday

DC Department of Licensing and Consumer Protection, Corporations Division

Website
dlcp.dc.gov
Phone
(202) 671-4500
Email
dlcp@dc.gov
Mail
1100 4th Street, SW, Washington, DC 20024
Hours
8:30 AM to 4:30 PM Eastern Monday, Tuesday, Wednesday and Friday; 10:30 AM to 4:30 PM Eastern Thursday

Connecticut Department of Revenue Services

Website
portal.ct.gov/drs
Phone
(860) 297-5962
Email
drs@ct.gov
Mail
450 Columbus Boulevard, Suite 1, Hartford, CT 06103
Hours
8:30 AM to 4:30 PM Eastern, Monday to Friday

DC Office of Tax and Revenue

Website
otr.cfo.dc.gov
Phone
(202) 727-4829
Email
e-services.otr@dc.gov
Mail
1101 4th Street, SW, Suite 270 West, Washington, DC 20024
Hours
8:15 AM to 5:30 PM Eastern, Monday to Friday

Frequently Asked Questions

  • Is it cheaper to form an LLC in Connecticut or District of Columbia?

    District of Columbia is cheaper at formation ($99) than Connecticut ($120). Ongoing costs are also different: $500 vs $180 per year. Total over three years: $1,599 vs $660.

  • Can I form an LLC in Connecticut if I live in District of Columbia?

    Yes, but your District of Columbia business will almost certainly need to register as a foreign LLC in District of Columbia too, which means paying District of Columbia's foreign registration fee and any ongoing District of Columbia obligations on top of the Connecticut ones. The "form elsewhere to save" math usually doesn't work for operating businesses; it only works when you have no physical operations tied to any specific state.

  • How long does it take to form an LLC in Connecticut vs District of Columbia?

    Connecticut online: 5 business days; District of Columbia online: 5 business days. Connecticut offers paid expedite from $50. District of Columbia offers paid expedite from $50.

  • Which state has lower taxes for an LLC, Connecticut or District of Columbia?

    Connecticut: state income tax applies to member-level pass-through income, no entity-level franchise or LLC tax. District of Columbia: state income tax applies to member-level pass-through income, plus a $250 minimum entity-level tax.

  • Do both states require a registered agent?

    Yes. Every US state (and DC) requires every LLC to maintain a registered agent with a physical street address in the state. Connecticut and District of Columbia both have this requirement. You can serve as your own agent if you live in the state; most out-of-state filers use a commercial agent for $50 to $125 per year.

  • Which state should I pick if I run an online business from home?

    Form in the state you actually live in. Your home state's Department of Revenue treats your residence as nexus regardless of where the LLC is filed, which means you owe state income tax there anyway. Forming in Connecticut or District of Columbia to escape your home state's tax doesn't work; it adds paperwork. The non-resident filings make sense when you genuinely operate nowhere in particular: international founders, purely passive holding entities, or real-estate LLCs owning property in other states.

Full state guides

More Connecticut and District of Columbia comparisons

Sources

  • Filing fee: business.ct.gov/knowledge-base/articles/domestic-limited-liability-com… · verified April 21, 2026
    Connecticut Secretary of the State Business Services: Certificate of Organization (formation of a domestic LLC) fee is $120. Same fee applies whether filed online through Business.CT.gov or by mail.
  • Expedited filing: business.ct.gov/knowledge-base/articles/expedited-services · verified April 21, 2026
    Connecticut expedited service fee is $50 per transaction. Expedited service is only available for online filings through Business.CT.gov (not available for mail). Expedited filings typically process within 24 hours.
  • Annual report fee: business.ct.gov/knowledge-base/articles/domestic-limited-liability-com… · verified April 21, 2026
    Annual Report fee = $80, filed online between January 1 and March 31 each year. Same $80 fee applies to foreign LLCs (Foreign Annual Report).
  • Franchise tax: www.cttaxalert.com/2019/08/business-entity-tax-repeal/ · verified April 21, 2026
    Connecticut Public Act 19-117 (2019 budget bill) repealed the $250 biennial Business Entity Tax (Conn. Gen. Stat. Sec. 12-284b) effective for tax years beginning on or after January 1, 2020. Connecticut no longer imposes a franchise tax or business entity tax on LLCs. Flagged as applies: false per the instructions.
  • Foreign LLC registration fee: business.ct.gov/knowledge-base/articles/foreign-limited-liability-comp… · verified April 21, 2026
    Connecticut Foreign Registration Statement (foreign LLC): $120 filing fee, matching the domestic Certificate of Organization. Foreign LLCs also file the $80 Annual Report between January 1 and March 31.
  • Sales tax rate: portal.ct.gov/drs/sales-tax/sales-and-use-tax-information · verified April 21, 2026
    Connecticut Department of Revenue Services: statewide general sales and use tax rate is 6.35%. Connecticut does not authorize local sales taxes. A higher 7.75% rate applies to certain luxury goods and a 1% rate applies to computer and data processing services.
  • Corporate income tax rate: portal.ct.gov/drs/corporation-tax/corporation-business-tax · verified April 21, 2026
    Connecticut Corporation Business Tax (CBT) base rate is 7.5% on net income. A 10% CBT surtax has been extended through income years beginning before January 1, 2026 by Public Act 24-151. The 7.5% is Connecticut's income-only corporate rate; the surtax and PTET are noted in taxes.notes rather than folded into this number.
  • Business name search: service.ct.gov/business/s/onlinebusinesssearch?language=en_US · verified April 21, 2026
    Connecticut Business Records Search via the CT.gov portal. Use before filing to confirm name availability.
  • Online filing portal: business.ct.gov/ · verified April 21, 2026
    Business.CT.gov is the official online filing portal for Connecticut business formation, annual reports, and amendments. Filings typically complete within 3 to 5 business days (standard) or about 1 business day with the $50 expedited fee.
  • Operating agreement requirement: law.justia.com/codes/connecticut/title-34/chapter-613a/section-34-243d… · verified April 21, 2026
    Conn. Gen. Stat. Sec. 34-243a defines an operating agreement as the agreement of all members whether oral, implied, in a record, or any combination. No statutory requirement that the agreement be written or filed. Recorded as not required.
  • Publication requirement: law.justia.com/codes/connecticut/title-34/chapter-613a/ · verified April 21, 2026
    Connecticut Uniform Limited Liability Company Act (Chapter 613a) contains no newspaper publication requirement. LLCs are not required to publish notice of formation.
  • Filing fee: dlcp.dc.gov/node/1621921 · verified April 21, 2026
    DLCP Corporations Division fee schedule for Limited Liability Company filings. Domestic LLC certificate of organization filing fee is $99.00. Amendment, statement of authority, statement of dissolution, merger, and most other LLC filings are $220. DC calls the formation document a certificate of organization in statute (section 29-802.01) but the DLC-1 form retains the Articles of Organization label.
  • Expedited filing: dlcp.dc.gov/node/1621901 · verified April 21, 2026
    DLCP Fees for Corporate Registration Services page. Expedited same-day service: $100 in addition to all other fees required by statute. Expedited 3-day service: $50 in addition. Expedited fee is automatic for walk-in customers at the Business License Center. Expedited service may be limited or unavailable for mail-in filings; available via CorpOnline for web filings. We record the cheaper 3-day tier ($50, 72 hours) as the default. Same-day tier: $100 additional, 24-hour target.
  • Annual report fee: dlcp.dc.gov/node/1621921 · verified April 21, 2026
    DLCP LLC fee schedule. Biennial report fee is $300 for domestic and foreign LLCs. Biennial report late fee is $100. D.C. Code section 29-102.11 sets the April 1 deadline every two years.
  • Annual report fee: code.dccouncil.gov/us/dc/council/code/sections/29-102.11 · verified April 21, 2026
    D.C. Code section 29-102.11(c). First biennial report due April 1 of the year following the calendar year in which the public organic record became effective. Subsequent biennial reports due April 1 of each second calendar year thereafter. Failure to file leads to administrative dissolution per section 29-106.02.
  • Franchise tax: otr.cfo.dc.gov/page/dc-business-franchise-tax-rates · verified April 21, 2026
    DC Office of Tax and Revenue Business Franchise Tax Rates page. Unincorporated Business Franchise Tax (UBT): 8.25% rate (all years 2018 and later). Filing threshold: DC-source gross income over $12,000 triggers a filing obligation. Minimum tax: $250 if DC gross receipts are $1,000,000 or less; $1,000 if over $1,000,000. A 30% salary allowance for owners and a $5,000 exemption apply in computing taxable income. Exemption: a business is exempt if more than 80% of gross income is derived from personal services rendered by the members and capital is not a material income-producing factor.
  • Franchise tax: code.dccouncil.gov/us/dc/council/code/titles/47/chapters/18/subchapter… · verified April 21, 2026
    D.C. Code Title 47, Chapter 18, Subchapter VIII: Tax on Unincorporated Businesses. Section 47-1808.01 defines unincorporated business and sets exemptions. Section 47-1808.03 sets the rate. Section 47-1808.04 governs the $250/$1,000 minimum and the 30% salary allowance and $5,000 exemption used to compute taxable income. Confirms UBT applies to LLCs taxed as partnerships or disregarded entities federally, unless exempt.
  • Operating agreement requirement: code.dccouncil.gov/us/dc/council/code/sections/29-801.07 · verified April 21, 2026
    D.C. Code section 29-801.07 permits but does not require an operating agreement. Section 29-801.02 defines operating agreement as the agreement of all the members; it may be oral, implied, in a record, or in any combination. Recorded as operatingAgreementRequired: false.
  • Foreign LLC registration fee: dlcp.dc.gov/node/1621921 · verified April 21, 2026
    DLCP LLC fee schedule. Foreign LLC Foreign registration statement filing fee is $220.00.
  • Publication requirement: code.dccouncil.gov/us/dc/council/code/titles/29/chapters/8 · verified April 21, 2026
    DC does not require newspaper publication for LLC formation. No such requirement exists in D.C. Code Title 29, Chapter 8 (Limited Liability Companies). Recorded as required: false.
  • Business name search: corponline.dlcp.dc.gov/ · verified April 21, 2026
    DLCP CorpOnline portal is the unified entity registration and entity search system. Old corponline.dcra.dc.gov URL now redirects here. Use before filing DLC-1 to confirm name availability.
  • Sales tax rate: otr.cfo.dc.gov/page/sales-and-use-tax-faqs · verified April 21, 2026
    DC Office of Tax and Revenue general sales tax FAQs. General Sale tax rate: 6%. Higher tiered rates apply to soft drinks (8%), prepared food and alcohol for on-premise consumption (10%), rental vehicles and off-premises liquor (10.25%), lodging (15.95%), and parking (18%).
  • Corporate income tax rate: otr.cfo.dc.gov/page/dc-business-franchise-tax-rates · verified April 21, 2026
    DC Corporate Franchise Tax rate is 8.25% for tax year 2025 and all years since 2018. Minimum corporate franchise tax: $250 if DC gross receipts $1M or less; $1,000 if over $1M. Corporations or financial institutions are not exempt from the minimum even if otherwise exempt under DC Code.