Signing authority is the formal power to bind the company in contracts, financial commitments, and legal documents on behalf of the organization.
Plain definition
Signing authority is the documented and legally recognized power to bind the company by signature. It is established in the bylaws, the certificate of incorporation, board resolutions, or delegation of authority policies. It defines who can sign which categories of documents, at what dollar limits, and under what conditions.
Common categories include commercial contracts, vendor agreements, employment offers, financial commitments, real estate transactions, intellectual property assignments, and government filings. Different categories often carry different signing rules, sometimes requiring two signatures, board resolution, or external notarization.
Signing authority is the difference between a document and a binding obligation. Who can sign decides who can commit the company.
What goes wrong
In the early stage, the founder signs every document. As the company scales, the routine continues without formal documentation of who else can sign and at what level. New leaders cannot transact without the founder's signature. The founder becomes the bottleneck, and any travel or absence delays normal operations.
A senior leader signs a vendor agreement assuming they have signing authority for that category. The delegation of authority did not actually grant that authority. The vendor proceeds. The contract is later challenged. The company may be bound, the leader may have personal exposure, or both.
The bylaws require two signatures for commitments above a defined threshold. A series of single-signature commitments are made above the threshold. The CFO discovers the pattern in a year-end audit. The contracts are valid because counterparties relied on apparent authority, but the controls that produced them were not followed.
A former officer's signature blocks remained in template documents. New contracts were signed using the old officer's name electronically because the templates had not been updated. The contracts may be enforceable or contestable depending on the jurisdiction and the counterparty's reliance.
Founder questions
Bigger picture
Delegation of authority is the broader transfer of decision-making power. Signing authority is the specific subset that governs who can bind the company contractually.
Related structure Authorization LimitsAuthorization limits decide how far the signing seat goes. The signature category and the dollar limit together shape what the seat can actually commit to.
Related structure Fiduciary DutySigning authority is also a fiduciary touchpoint. People who sign on behalf of the company commit the company under their underlying duty of care and loyalty.
Related reading
The base layer of how signature, approval, and authority structure compounds as private companies grow.
Related readingThe structural cost of decisions, including signed commitments, that have no clear owner.
Related readingThe operating side of how to make and document decisions in a way that holds up when reviewed later.
Bring the bylaws, the delegation of authority, the recent contract list, and the signatures actually on those documents.