How to Increase Your Company's Authorized Share Capital in the US

If your US company is preparing to raise funding, bring on new co-founders, issue employee stock options, or restructure ownership, one of the first practical questions you will face is whether your current authorised share capital is sufficient.

For many founders, the answer is no. And fixing it requires a formal process that, if done incorrectly, can delay fundraising, create tax complications, and trigger unexpected state fees.

Here is a clear, step-by-step guide to increasing your company's authorised share capital in the US — what it means, when you need it, how to do it correctly, and what pitfalls to avoid.

What Is Authorized Share Capital?

Authorised share capital is the maximum number of shares your company is legally permitted to issue, as stated in your formation documents — your Articles of Incorporation (for corporations) or, in some cases, your Operating Agreement (for LLCs).

It is important to understand the difference between the two related terms:

• Authorised shares — the total number of shares your company is allowed to issue

• Issued shares — the number of shares actually distributed to shareholders at any given time

You can only ever issue shares up to your authorised limit. If you need to issue more — to an investor, a new co-founder, or an employee stock option plan — you must first increase your authorised share capital through a formal amendment process.

For US corporations in particular, this is a critical governance step that sits at the intersection of corporate compliance, corporate filing, and your company's broader capital structure.

When Do You Need to Increase Authorised Share Capital?

The most common situations that trigger the need to increase authorised shares include:

Raising a funding round — Investors, especially venture capital firms, typically require a company to reserve a specific block of shares before closing a deal. If your authorised pool is nearly or fully issued, you cannot accommodate the new investment without increasing it first.

Creating an Employee Stock Option Pool (ESOP) — Most investor term sheets require you to create or expand an ESOP before closing. This requires additional authorised but unissued shares to be set aside.

Bringing in a new co-founder or partner — If a new key person is joining the business and receiving equity, you need unissued shares available to grant them.

Structural reorganisation — If your company is converting from an LLC to a C-Corporation, or reorganising its capital structure ahead of a strategic event, increasing authorised capital is often part of the process.

Token or warrant issuance — Companies issuing convertible instruments, warrants, or SAFEs need enough authorised shares in reserve to cover potential conversion.

Step-by-Step: How to Increase Authorised Share Capital

Step 1 — Review Your Current Articles of Incorporation

Your current authorised share count is stated in your Articles of Incorporation, filed with the Secretary of State in your state of incorporation — typically Delaware, Wyoming, or the state where you first chose to register your business.

Check: How many shares are currently authorised? How many are issued? How many are reserved for options or warrants? The difference between authorised and issued is your available headroom.

Step 2 — Obtain Board Approval

The first formal step is a resolution of the Board of Directors approving the proposed increase in authorised share capital and recommending it to shareholders for approval.

This resolution should specify:

• The current number of authorised shares

• The proposed new number of authorised shares

• The class or classes of shares being increased (common stock, preferred stock, or both)

• The reason for the increase

Your company secretary should draft this resolution and ensure it is properly documented in the company's minute book. This is not a casual email — it is a formal board action that must be part of your permanent corporate records.

Step 3 — Obtain Shareholder Approval

In most US states, increasing authorised share capital requires approval from existing shareholders — not just the board. The threshold varies by state and by what your existing Articles or Bylaws require, but it is typically a majority vote of outstanding shares.

For early-stage companies with a small, aligned founding team, this is usually straightforward. For companies with multiple investors or complex cap tables, careful coordination.

Document the shareholder vote in writing — via a formal resolution or written consent signed by the approving shareholders. This document belongs in your corporate records alongside the board resolution.

Step 4 — File a Certificate of Amendment With the Secretary of State

Once board and shareholder approval is secured, you must file a Certificate of Amendment (sometimes called an Amendment to Articles of Incorporation) with the Secretary of State LLC office in your state of incorporation.

This is a formal corporate filing that officially updates your authorised share count on the public record. The amendment must include:

• Your company's legal name exactly as registered

• Your state entity number

• The specific amendment being made — the new authorised share count

• Confirmation that proper board and shareholder approval was obtained

• Signature of an authorised officer

Filing fees vary by state and by share count. This is a critical point many founders miss.

Step 5 — Understand the Franchise Tax Implications

Here is the most important warning in this entire process: increasing your authorised shares can significantly increase your annual state franchise tax — particularly in Delaware.

Delaware uses two methods to calculate franchise tax for corporations:

• Authorised Shares Method — taxes are based directly on the number of authorised shares. More authorised shares = higher tax.

• Assumed Par Value Capital Method — taxes are based on the company's total assets relative to issued shares. This method is almost always cheaper for companies with a large number of authorised shares but relatively modest assets.

Many Delaware corporations authorise very large numbers of shares — 10 million, 50 million, or more — without realising that using the default Authorised Shares Method would result in a franchise tax bill of tens of thousands of dollars annually. The fix is to calculate using the Assumed Par Value Capital Method — but you must know to do this, or ask.

Your corporate services provider should flag this calculation before you file the amendment — not after the bill arrives.

Step 6 — Update Your Internal Cap Table and Corporate Records

Once the state processes your Certificate of Amendment, update your internal cap table to reflect the new authorised share pool. Document the amendment in your minute book alongside the board and shareholder resolutions.

If you have investors, your shareholders' agreement, investment documents, or any side letters that reference the authorised share count may also need to be updated or supplemented with an acknowledgement of the change.

What About LLCs — Do They Have Authorised Share Capital?

Strictly speaking, LLCs do not issue shares — they issue membership interests, typically expressed as percentages. The concept of "authorised share capital" applies specifically to corporations (C-Corps and S-Corps).

However, if your LLC is planning to raise institutional funding and is considering converting to a Delaware C-Corporation — a process often called a "startup flip" — the authorised share structure will be established as part of that conversion process. Your company secretary or corporate compliance provider should advise on the appropriate initial authorised share count at the time of conversion, to avoid needing an immediate amendment.

If you are still operating as an LLC and have not yet elected a tax classification, now is also the time to review whether filing Form 2553 to elect S-Corp status — or converting to a C-Corp — better serves your current fundraising and ownership goals.

How This Connects to Your Broader Compliance Obligations

An authorised share capital increase is a significant corporate filing event that triggers updates across multiple parts of your compliance infrastructure:

• Secretary of State — Certificate of Amendment filed and confirmed

• Corporate records — Board resolution, shareholder consent, updated cap table, and amended Articles stored in your minute book

• IRS records — If a structural change accompanies the share increase, update entity details as needed

• Annual filing — Your next annual report with the Secretary of State should reflect the updated authorised share count

• Business tax return — Ensure your accountant is aware of the change and its franchise tax implications when preparing your business tax return and small business tax filing

Keeping all of these aligned is exactly why legal compliance after a capital event requires more than just filing one form. It requires a coordinated update across your state records, internal governance documents, and tax filings.

How Accorp Handles This for You

At Accorp, we manage the full authorised share capital increase process for US corporations — from drafting board and shareholder resolutions to preparing and filing the Certificate of Amendment with the Secretary of State, updating your corporate records, and flagging franchise tax implications before they become surprises.

Our corporate compliance and corporate services offering covers:

• Board and shareholder resolution drafting

• Certificate of Amendment preparation and corporate filing

• Delaware franchise tax calculation and optimisation advice

• Cap table updates and corporate minute book maintenance

• Registered agent services in all 50 US states

• Annual filing management with advanced deadline alerts

• Full compliance support for funding rounds, ESOP creation, and structural reorganisations

Whether you are taking your first funding round, expanding your cap table, or preparing to set up a limited company with the right share structure from day one, Accorp makes sure every step is done correctly.