Direct Answer
In almost every case where you carry paying passengers on demand, yes — you need a Part 135 certificate.
Under 14 CFR 119.1, a certificate is required when you operate as an air carrier or commercial operator carrying persons or property for compensation or hire. 14 CFR 1.1 defines a commercial operator as a person who, for compensation or hire, engages in the carriage by aircraft of persons or property. The line is crossed by compensation plus carriage — the moment money changes hands for the transportation.
There are narrow Part 91 carve-outs — cost-sharing under 14 CFR 61.113 and large/turbine arrangements under 14 CFR 91.501 — but they are condition-laden exceptions, not a general license to charter. Whether your facts fit one is a question for an aviation attorney.
The Question Behind the Question
Most people who ask “do I need a Part 135 certificate?” are really asking one of three things: Can I charge a friend or a stranger to fly them somewhere in my plane? Can I rent my plane out to make some of the ownership cost back? Can I let a company pay me to fly its executives? The answers diverge — and the difference is not about the size of the check. It is about whether you are carrying persons or property for compensation or hire, and whether you are holding out to the public.
This guide is the operator-side, plain-English version of that analysis. It is the companion to our deeper piece on Part 91 vs. Part 135 and the “compensation or hire” line. Where that article dissects the legal mechanics of compensation, this one answers the practical first question: do I cross into Part 135 territory at all, and if so, what then?
One framing to keep in mind throughout: the FAA judges these arrangements on their substance, not their labels. A contract that says “dry lease” or “cost-sharing” does not make it so if the way you actually operate looks like selling air transportation. That is why the people who get caught are rarely trying to break the rules — they have simply talked themselves into believing an exception applies.
Why this matters before the first dollar changes hands
Operating as an air carrier without the required certificate is an illegal-charter (or “grey-charter”) violation. It is an active FAA enforcement priority — and the consequences reach the pilot, the aircraft owner, and any broker in the chain. The time to get the analysis right is before you accept payment, not after a ramp check. For the enforcement picture, see our illegal-charter FAA crackdown guide.
Where Part 91 Ends and Part 135 Begins
Part 91 is the general operating rules — the set every aircraft flies under for personal, recreational, and most business flying where no one is paying for the transportation. Part 135 governs on-demand commercial operations: charter. The boundary between them is not the size of the aircraft, the distance flown, or whether you call it a “charter.” It is whether you are carrying persons or property for compensation or hire.
14 CFR 119.1(a) sets the applicability: Part 119 (and the requirement to hold an air carrier or operating certificate) applies to each person operating civil aircraft as an air carrier or commercial operator, or both, in air commerce. For on-demand charter, 14 CFR 119.21 then requires that person to hold an Air Carrier or Operating Certificate and be issued operations specifications under Part 135.
The definitions that do the work live in 14 CFR 1.1. A commercial operator is “a person who, for compensation or hire, engages in the carriage by aircraft in air commerce of persons or property, other than as an air carrier.” An air carrier is “a person who undertakes directly by lease, or other arrangement, to engage in air transportation.” And critically, the concept of operational control — “the exercise of authority over initiating, conducting, or terminating a flight” — decides who is actually operating the aircraft when more than one party is involved.
Stays under Part 91
- Flying yourself, your family, or your guests with no charge for the transportation
- A company flying its own officials and employees on company business (within 14 CFR 91.501 for large/turbine airplanes)
- A private pilot sharing the pro-rata operating expenses of a flight under 14 CFR 61.113(c), with a common purpose
- A genuine dry lease where the lessee provides the crew and holds operational control
- Time-sharing, interchange, and joint-ownership arrangements for large/turbine airplanes under 14 CFR 91.501
Requires a Part 135 certificate
- Carrying paying passengers from place to place on demand
- Advertising or otherwise holding out a willingness to fly anyone who pays
- Selling whole-aircraft or per-seat trips to the public
- A wet lease — you supply the aircraft and at least one crewmember — for compensation
- Any arrangement where you, the aircraft provider, keep operational control of revenue flights
The right column is not exhaustive, and the left column is full of conditions. But the through-line is consistent: compensation for carrying people or property, especially when you hold out to the public, lands you in Part 135. For a fuller treatment of the corporate flight-department side of the Part 91 boundary, see our Part 91 corporate flight department records guide and the flight-department company trap.
The Four-Element Common-Carriage Test (AC 120-12A)
The FAA does not have a single CFR section that says “here is how to tell if you are a common carrier.” Instead, the working framework comes from Advisory Circular 120-12A, “Private Carriage Versus Common Carriage of Persons or Property,” and from decades of FAA legal interpretations. AC 120-12A is guidance — doctrine — not a regulation you can point to a subsection of. It explains that a person is engaged in common carriage when there is:
A holding out
of a willingness to the public (or any segment of it), by advertising or other means, to provide air transportation. Per AC 120-12A, you can hold out by advertising — or physically, simply by gaining a reputation for serving all comers, even with no advertising at all.
To transport persons or property
the carriage of people or cargo — as opposed to, say, aerial work like crop dusting or photography, where the aircraft is the tool rather than the transportation.
From place to place
transportation between points — moving someone or something from origin to destination, which distinguishes charter from operations that begin and end at the same point for a non-transportation purpose.
For compensation or hire
something of value flows to the operator for the transportation. Compensation does not have to be cash, and it does not have to be profit — goodwill, reciprocal benefit, and indirect value have all been treated as compensation in FAA interpretations.
When all four elements are present, you are a common carrier, and operating as one for compensation requires an air carrier certificate. AC 120-12A notes that holding out has historically been the greatest pitfall — because it can happen inadvertently. A website that says you will fly clients, a listing on a charter marketplace, even a word-of-mouth reputation that you will fly anyone for a price can constitute holding out.
Private carriage is not automatically a free pass
If you are not holding out — you carry only a small, defined number of customers under contract, rather than offering transportation to the public — your operation may be private carriage rather than common carriage. But private carriage for compensation or hire can still require an operating certificate. AC 120-12A is explicit that the common-carriage line is about holding out; it does not say that the absence of holding out frees you from certification when you are carrying persons or property for compensation.
In other words: do not assume that “I only fly a few clients, I don’t advertise” puts you safely in Part 91. The compensation-plus-carriage trigger is the deeper test, and the certificate question is fact-specific. This is precisely the kind of analysis to run with an aviation attorney before you operate. For the related question of how operational control is established, see what operational control means in Part 135 and what “holding out” means in aviation.
Once you decide to operate, can you prove it?
FileFlo does not decide whether you need a certificate — that is for you and your aviation attorney. But the moment you operate under Part 135, FileFlo keeps the records that prove it audit-ready: operations specifications, lease and management agreements, airworthiness and registration, pilot and training records, and truth-in-leasing paperwork. Starter at $89/mo, Professional at $299/mo. 5-day free trial, no credit card required.
The Real Part 91 Carve-Outs (and Their Limits)
There are legitimate ways to defray cost or operate without a Part 135 certificate — but each is narrow and condition-laden. None of them is a backdoor to running a charter business. Here are the ones operators most often ask about.
Pro-rata cost-sharing for private pilots — 14 CFR 61.113(c)
A private pilot may not act as PIC for compensation or hire, with limited exceptions. Under 61.113(c), a private pilot may share the operating expenses of a flight with passengers, provided the pilot pays at least their pro-rata share of the operating expenses — limited to fuel, oil, airport expenditures, and rental fees. FAA interpretations have layered on a "common purpose" requirement: the pilot and passengers must be going to the same place for a shared reason, and the pilot cannot hold out. This is expense-sharing among people flying together, not a way to get paid to fly someone where they want to go.
Large / turbine arrangements — 14 CFR 91.501
Subpart F of Part 91 applies to large airplanes of U.S. registry, turbojet-powered multiengine civil airplanes, and fractional-ownership program aircraft. 91.501(b) lists operations that may be conducted under Part 91 instead of Part 135 — including carriage of a company’s officials, employees, and guests within the scope of and incidental to the business of the company; flights for the operator’s personal transportation or guests with no charge; and the carriage of company officials under time-sharing, interchange, or joint-ownership agreements. 91.501(c) defines those three agreement types, and 91.501(d) specifies the only charges that may be made (such as fuel, crew expenses, hangar, insurance, landing fees — plus, for time-sharing, an additional charge equal to 100% of the fuel/oil and certain expenses). These do not exist for a piston single, and they are not a charter license.
A genuine dry lease — aircraft only, lessee holds control
You can lease your aircraft to another party under a dry lease: you provide the aircraft alone, and the lessee provides the crew and holds operational control of every flight. Done genuinely, that is leasing property, not selling air transportation. The danger is the wet lease — 14 CFR 110.2 defines a wet lease as any arrangement where you provide an entire aircraft and at least one crewmember. A wet lease for compensation is functionally air transportation requiring a certificate. The FAA looks past the title of the agreement to who actually crews and controls the flights. See our dry-lease vs. wet-lease guide and the truth-in-leasing requirements below.
The 119.1(e) operations that need no certificate
14 CFR 119.1(e) lists operations outside the Part 121/135 certificate requirement entirely: student instruction; nonstop commercial air tours within a 25-statute-mile radius (under the 119.1(e)(2) conditions); ferry or training flights; aerial work such as crop dusting, banner towing, aerial photography/survey, powerline and pipeline patrol, and firefighting; sightseeing in hot air balloons; and certain nonstop parachute-operation flights within 25 statute miles. Carrying paying passengers from one place to another for transportation is conspicuously not on the list.
The tax layer is separate — and complicated
Even where an operation is legal under Part 91, the tax treatment of charter income, depreciation, and the federal excise tax (FET) on transportation of persons by air is genuinely complex and turns on facts a tax advisor must weigh. Whether an arrangement is “possession, command, and control” for FET purposes is its own analysis. Do not assume the compliance answer and the tax answer line up — get a tax advisor alongside your aviation attorney.
Related guides on the structuring choices: dry lease vs. wet lease · aircraft leaseback & Part 135 · management company vs. charter
Once You Cross the Line: Your Two Routes Into Part 135
If the analysis lands you in Part 135 territory — you want your aircraft to carry paying passengers — you have two practical routes, and choosing between them is the subject of our dedicated guide on chartering a single aircraft (own certificate vs. management company). In brief:
Route A — Your own Part 135 certificate
You apply for and hold your own certificate (single-pilot, single-PIC, basic, or standard, depending on how you intend to operate). You keep the charter margin — and you carry the full weight of running and proving a Part 135 program: manuals, training, a drug and alcohol program, a maintenance program, surveillance audits, and the records behind all of it.
Route B — An aircraft management company’s certificate
You place the aircraft on an established management company’s Part 135 certificate. They hold the certificate, the compliance program, and — critically — operational control of the charter flights. You take a smaller share of the revenue after their fee, but you do not run the certificate yourself. You must respect that they, not you, control the charter flight.
Either route makes the aircraft a Part 135 asset, listed in operations specifications under 14 CFR 119.49 (with amendments handled under 14 CFR 119.51), and either route runs on the recordkeeping Part 135 requires. The certification process itself — for the own-certificate route — runs through five gates, including the proving tests required by 14 CFR 135.145. Our Part 135 certification application checklist and OpSpecs explained walk through the rest.
Whichever route you take, the aircraft must also be added to the certificate through a conformity process. See adding an aircraft to a Part 135 certificate (conformity) and, for the certificate-DIY-versus-consultant decision, certification consultant vs. DIY.
The Records That Keep the Operation Legal — Either Way
Whether you stay under Part 91 with a genuine dry lease, or move into Part 135 with your own certificate or a management company’s, the same truth holds: the legality of the arrangement is only as good as the documents that prove it. An FAA inspector — or a charter customer’s safety auditor — will ask for the paperwork, and the burden is on you to produce it. These are the records that matter most.
Operations Specifications (OpSpecs)
14 CFR 119.49 / 119.51Why it matters
The FAA-issued document that defines what your (or the management company’s) Part 135 certificate is authorized to do — aircraft, areas of operation, and special authorizations. Every charter flight must fall within the OpSpecs envelope. Amendments are handled under 119.51.
How FileFlo tracks it
FileFlo tracks OpSpecs paragraphs as a document class, surfaces expiring or lapsed authorizations, and assembles a one-click OpSpecs inventory for surveillance visits.
Lease or management agreement + truth-in-leasing
14 CFR 91.23Why it matters
For large civil aircraft, 91.23 (truth in leasing) requires the lease to identify the regulations under which the aircraft has been maintained, name and have signed by the person responsible for operational control, carry a copy aboard the aircraft, be mailed to the FAA Aircraft Registration Branch within 24 hours of execution, and trigger notice to the responsible Flight Standards office at least 48 hours before the first flight under the lease.
How FileFlo tracks it
FileFlo stores lease and management agreements with execution date, filing date, aircraft cross-reference, and expiration tracking — the complete lease document chain for any inquiry.
Aircraft registration & airworthiness certificate
14 CFR 91.203 / 47.xWhy it matters
The aircraft must be registered and carry a current airworthiness certificate. These are foundational to every operation — Part 91 or Part 135 — and a lapse here grounds the aircraft regardless of how the charter side is structured.
How FileFlo tracks it
FileFlo classifies registration and airworthiness documents, cross-references them to the aircraft, and alerts before any renewal lapses.
Pilot qualification & training records
14 CFR 135.243 / 135.293 / 135.297Why it matters
For Part 135 operations, the certificate holder must show its pilots are qualified and current — PIC qualification under 135.243, recurrent testing under 135.293, and instrument proficiency under 135.297 for IFR. These records tie each charter flight to a qualified crew under the certificate holder’s authority.
How FileFlo tracks it
FileFlo cross-references crew records against 135.293 recurrent, 135.297 IPC, and 135.243 PIC qualification — surfacing gaps before the next dispatch.
Related guides: what records must a Part 135 operator keep · truth-in-leasing & lease records (91.23)
FileFlo is the proof layer — it does not decide your structure
FileFlo is a compliance document intelligence platform. It classifies, indexes, version-tracks, and surfaces expirations on the records your operation generates. It does not decide whether your arrangement is common carriage, structure your entity, give legal or tax advice, choose your certificate type, decide who holds operational control, or get you certified. Those belong to you, your aviation attorney, your tax advisor, and your FAA office. FileFlo’s job is to make the records half provable — so whichever path you take, the documents that keep the operation legal are organized, current, and retrievable the moment an inspector or customer asks.
Frequently Asked Questions
Do I need a Part 135 certificate to charter my own plane?
In almost every case where you carry paying passengers on demand, yes. The trigger is set by 14 CFR 119.1, which applies to each person operating civil aircraft as an air carrier or commercial operator in air commerce. 14 CFR 1.1 defines a commercial operator as a person who, for compensation or hire, engages in the carriage by aircraft in air commerce of persons or property. The moment someone pays you something of value to carry them or their cargo from place to place, you are presumptively in commercial-operator territory and need a Part 135 certificate (or to fit one of the narrow exceptions). There are a few Part 91 carve-outs under 14 CFR 91.501 for large and turbine-powered multiengine airplanes — and pro-rata cost-sharing under 14 CFR 61.113 for private pilots — but those are condition-laden exceptions, not a general license to charter. Whether your specific arrangement crosses the line is a fact question; confirm it with an aviation attorney before you accept any payment.
When do you need a Part 135 certificate, exactly?
You need one when you operate as an air carrier or commercial operator carrying persons or property for compensation or hire, as described in 14 CFR 119.1(a). For on-demand charter specifically, 14 CFR 119.21 requires a person conducting those operations for compensation or hire to hold an Air Carrier or Operating Certificate and be issued operations specifications under Part 135. The FAA's working framework for whether transportation is common carriage comes from Advisory Circular 120-12A, which lays out four elements: (1) a holding out of a willingness to (2) transport persons or property (3) from place to place (4) for compensation or hire. If all four are present you are a common carrier and need the certificate. Private carriage — carrying a limited, defined set of customers rather than holding out to the public — can still require a commercial certificate when it is for compensation or hire. The cleanest way to think about it: the line is crossed by compensation plus carriage, and the type of certificate is shaped by whether you are holding out. An aviation attorney should confirm which side of the line you are on.
Can I charge to fly my plane without a charter certificate?
Generally no, if you mean charging passengers to carry them on demand — that is exactly what a Part 135 certificate authorizes. There are narrow, well-defined exceptions. A private pilot may share the pro-rata operating expenses of a flight with passengers under 14 CFR 61.113(c), but only their pro-rata share (fuel, oil, airport expenditures, rental fees) and only where the pilot has a common purpose with the passengers — this is cost-sharing, not charging for transportation. For large airplanes and turbojet-powered multiengine airplanes, 14 CFR 91.501 permits time-sharing, interchange, and joint-ownership arrangements with specific allowable charges. But none of these let you advertise and sell seats or whole-aircraft trips to the public for profit. If you are charging the public to fly them somewhere, you are almost certainly conducting an operation that requires a Part 135 certificate. Confirm with an aviation attorney — the carve-outs are easy to misread.
Can I rent out my airplane to other people?
Renting the aircraft itself is different from chartering, and the difference is operational control. If you dry-lease your aircraft to a qualified pilot — handing over the aircraft only, with the renter providing the crew and holding operational control of every flight — you are leasing property, not selling air transportation, and that can be a legitimate Part 91 activity. The renter, as the operator, is responsible for airworthiness, crew qualification, and the go/no-go decision. The trap is the wet lease: if you provide the aircraft and at least one crewmember, 14 CFR 110.2 calls that a wet lease, and a wet lease for compensation is functionally air transportation that requires the appropriate certificate. The FAA looks at the substance, not the label on the agreement. A lease titled dry lease is not a dry lease if you keep supplying the crew or directing the flights. See our truth-in-leasing guide for the documentation a lease must carry, and talk to an aviation attorney before structuring any leaseback.
What is holding out, and why does it matter for needing a certificate?
Holding out is the doctrine the FAA uses to decide whether you are a common carrier. Per Advisory Circular 120-12A, a person is holding out when, by any means, they communicate to the public — or any segment of the public — a willingness to furnish air transportation to anyone who wants it. Advertising is the obvious form, but the AC explains you can also hold out physically: if you gain a reputation for serving all comers, that alone can be holding out even without advertising. Holding out is the element that most often trips operators up, because it can be inadvertent — a website, a brokerage listing, word-of-mouth that you will fly anyone for a price. Holding out plus transporting persons or property from place to place for compensation equals common carriage, which requires an air carrier certificate. Even without holding out, private carriage for compensation or hire can still require a commercial operating certificate. Holding out is FAA doctrine framed in guidance (AC 120-12A) and decades of legal interpretation, not a single CFR section — so map your specific facts with an aviation attorney.
What operations do NOT require a Part 135 certificate?
14 CFR 119.1(e) lists specific operations that Part 119 (and the Part 121/135 certificate requirement) does not apply to. They include: student instruction; nonstop commercial air tours within a 25-statute-mile radius under the conditions in 119.1(e)(2); ferry or training flights; aerial work operations such as crop dusting, banner towing, aerial photography or survey, powerline or pipeline patrol, and firefighting; sightseeing flights in hot air balloons; certain nonstop parachute-operation flights within a 25-statute-mile radius; and a handful of others. Notably, carrying paying passengers from one place to another for the purpose of transportation is not on that list. Operations under 14 CFR 91.501 (time-sharing, interchange, joint ownership, company flights) and pro-rata cost-sharing under 14 CFR 61.113 are also conducted under Part 91 rather than Part 135. These exemptions are narrow and condition-specific — an aviation attorney can tell you whether your operation genuinely fits one.
How long does it take and what does it cost to get a Part 135 certificate?
There is no published FAA price for certification itself, and timelines vary widely by certificate type, aircraft, and FAA office workload. As a 2026 planning range, operators and consultants commonly describe the certification process taking anywhere from several months to well over a year from initial application through proving runs to certificate issuance, and consulting/setup costs commonly fall in a broad range from the low tens of thousands of dollars for a simple single-pilot certificate to six figures for a standard certificate with manuals, training programs, and a maintenance program. Those are ranges, not quotes — your actual cost and timeline depend on aircraft type, the number of pilots, your area of operations, and whether you build the program yourself or hire a consultant. Get current quotes from a certification consultant and verify the steps against the FAA's process; our how-to-get-a-Part-135-certificate guide walks through the five gates including the proving tests under 14 CFR 135.145.
Does FileFlo decide whether I need a certificate or get me certified?
No. FileFlo is a compliance document intelligence platform — it classifies, indexes, version-tracks, and surfaces expirations on the records an operation generates once you operate under Part 135: the aircraft registration and airworthiness certificate, the operations specifications, the lease or management agreement, pilot and training records, maintenance and inspection status, and the truth-in-leasing paperwork. It does not decide whether your arrangement is common carriage, structure your entity, give legal or tax advice, choose your certificate type, or get you certified by the FAA. Those belong to you, your aviation attorney, your tax advisor, and your FAA office. What FileFlo does is make the records half provable — so once you do operate under Part 135, the documents that keep the operation legal are organized, current, and retrievable the moment an inspector or a charter customer asks.
Decided to operate? Make your records provable.
The decision of whether you need a certificate is yours and your attorney’s. The moment you operate under Part 135, FileFlo keeps the records that prove it — OpSpecs, lease and management agreements, airworthiness and registration, pilot and training records, and truth-in-leasing paperwork — classified against the governing CFR section and organized for a one-click surveillance binder. AI document classification. 600+ document types. Starter at $89/mo, Professional at $299/mo. No credit card required for the 5-day free trial.
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Reviewed by Chad Griffith, Founder, FileFlo — compliance document intelligence — June 15, 2026. Regulatory citations verified against Cornell LII (law.cornell.edu) and FAA Advisory Circular 120-12A as of publication date. This article is general compliance-document information, not legal or tax advice.