Direct Answer
There is no published FAA fee for a domestic Part 145 repair station certificate and no fixed price — the cost is everything you must build and carry to prove capability. As a hedged 2026 planning range, a narrow single-rating shop is commonly budgeted in the low-to-mid tens of thousands of dollars in soft costs, while a broad-scope facility with specialized tooling can run into the hundreds of thousands or more. The money is driven by facilities (§145.103), equipment and calibrated tooling (§145.109), personnel salaries carried through the process (§145.151), technical-data subscriptions, and manual development (§§145.207, 145.211) — not by FAA fees.
On timeline: Part 145 has no fixed clock. Part 135’s 90-day rule is an applicant requirement to file the formal application at least 90 days before intended operations (§119.35), not a deadline for the FAA to act. In practice, a straightforward single-rating station commonly runs from several months to roughly a year from first contact to certificate; broader scopes and foreign locations run longer. The pace is set by your Flight Standards office’s workload, the breadth of ratings you request, your facility and article complexity, and — the variable you control — how complete and conforming your documents are when you submit.
The single biggest controllable cost-and-time driver is documentation rework: an incomplete or inconsistent repair station manual and quality control manual gets returned for correction, and every revision cycle adds both calendar time and carrying cost. Confirm current fees and process with your FAA Flight Standards office; treat every figure here as a 2026 planning estimate, not a quote.
Anyone Who Quotes You a Flat Price Is Guessing
The most important thing to internalize before you build a budget: the FAA does not sell a Part 145 certificate, and no two repair stations cost the same to stand up. A single-rating avionics shop in a leased suite and a broad-scope turbine-and-airframe facility with its own hangar and a six-figure test bench are both “Part 145 certification,” and their costs differ by an order of magnitude. So the useful question is not “what does it cost?” but “what are the cost drivers, and which ones apply to the station I want to build?”
This article is the money-and-timing companion to two siblings: the requirements pillar, Part 145 repair station requirements, which explains what you must have; and the process pillar, how to get a Part 145 repair station certificate, which walks the FAA application step by step. Read those for the what and the how; read this for the how much and the how long.
Every number in this article is a planning range, not a quote
There is no FAA price list for a domestic certificate, and published cost figures come from consultants, MRO operators, and industry commentary — not the regulation. We use deliberately wide ranges and a 2026 date stamp because your real number is set by your ratings, your articles, your location, and your facility. Use these to plan and to ask better questions, not to lock a budget.
Why There Is No Published Price — and Where Fees Actually Apply
For a repair station located inside the United States, the FAA does not charge an application or certificate fee. The certificate is the FAA’s formal finding that your organization is capable; the “cost” is the organization you build to earn that finding. That is why no honest source publishes a flat price — the variable cost is the answer.
There is one important exception. Under 14 CFR §145.51(c), a repair station located outside the United States must include additional information with its application and pay fees the FAA prescribes. So foreign-located applicants do carry an FAA fee on top of everything else; domestic applicants do not. If you see a “Part 145 fee” quoted, check whether it refers to a foreign station — or to a consultant’s service fee, which is a private charge, not an FAA one.
Domestic (U.S.) station
No FAA application or certificate fee. Budget entirely for facilities, equipment, personnel, technical data, manuals, and the working capital to carry them through certification.
Foreign (non-U.S.) station
§145.51(c) requires additional information and FAA-prescribed fees, on top of all the build costs. Confirm the current fee schedule with the FAA, since it can change.
Three different “fees” people confuse
When operators say “the Part 145 fee,” they usually mean one of three different things: (1) the FAA fee, which is zero for a domestic station and a real charge for a foreign one under §145.51(c); (2) a consultant’s service fee for writing manuals and managing the application, which is a private cost that varies widely; or (3) the all-in build cost of the station itself. Keep them separate in your budget, because conflating them is how people end up wildly under- or over-estimating.
The Five Real Cost Drivers
Strip away the FAA-fee confusion and the cost of a Part 145 station resolves into five centers, each anchored to a specific regulation. The dollar ranges below are deliberately wide, hedged 2026 planning estimates — the point is the structure and what moves each number, not a quote.
Housing & facilities
14 CFR §145.103Section 145.103 requires housing for your facilities, equipment, materials, and personnel consistent with your ratings, plus work space sized to your articles, segregation and protection of articles in work, suitable storage (racks, hoists, stands), separation of stocked materials from articles in maintenance, and control of ventilation, lighting, temperature, and humidity. In practice that is a lease or build-out, often a hangar or a fitted shop. This is usually the largest single cost and scales directly with the size and type of articles you work on.
Often the largest line item; scales with square footage, build-out, and whether you lease or own.
Equipment, tooling & calibrated test gear
14 CFR §145.109Section 145.109 requires the equipment, tools, and materials necessary to perform your work, located on the premises and under your control when the work is done, and that test and inspection equipment used to determine airworthiness be calibrated to a standard acceptable to the FAA. Equipment may be met through an acceptable contract, but specialized gear — avionics test sets, borescopes, turbine test equipment, NDT capability — is expensive and is a major reason broad-scope shops cost far more than narrow ones.
Highly rating-dependent: modest for a simple shop, six figures or more for specialized avionics/turbine capability.
Personnel (carried with no revenue)
14 CFR §145.151Section 145.151 requires you to designate an accountable manager and provide qualified personnel to plan, supervise, perform, and approve work for return to service, with enough trained and experienced staff to do the rated work. The hidden cost is timing: these people must be real and qualified before and during certification, so you carry management, supervisory, and inspection salaries through a months-long process before your first billable work order. Payroll-through-certification is one of the most underestimated costs.
Salaries carried for the full certification window with zero offsetting revenue — budget months, not weeks.
Technical data & subscriptions
14 CFR §145.109(d)Section 145.109(d) requires current, accessible documents for your work — manufacturer maintenance and overhaul manuals, instructions for continued airworthiness, applicable airworthiness directives, standard-practice manuals, service bulletins, and other applicable data acceptable to or approved by the FAA. Maintaining this is an ongoing subscription cost, not a one-time purchase, and out-of-date data is both a certification obstacle and a recurring source of findings later.
Recurring subscription cost that grows with the number and complexity of articles in your scope.
Manuals & (optional) consulting
14 CFR §§145.207, 145.211You must prepare a repair station manual (§145.207) and a quality control manual (§145.211) acceptable to the FAA. Many applicants pay a certification consultant to draft these and manage the application; nothing requires it, but a conforming manual set reduces the rework that drives delay. Whether you build the manuals in-house or hire it out, this is real soft cost — and the part of the budget where good document discipline pays for itself.
In-house labor or consultant fees; varies widely by scope and provider — treat any figure as a 2026 estimate.
A hedged 2026 way to think about the all-in range
Source: 14 CFR §145.103, §145.109, §145.151, §145.207, §145.211; industry cost estimates, 2026. Figures are planning ranges, not quotes.
Your ratings are the master cost dial
Four of the five cost centers scale with the breadth and type of ratings you request — facilities, equipment, technical data, and the manual scope all grow with what you choose to work on. Requesting only the ratings you actually need at first is the cleanest single lever for keeping the initial cost (and timeline) manageable. See how ratings and the capability list translate into records in Part 145 ratings & capability list records, and how personnel scale in Part 145 personnel roster & training records.
The cheapest way to shorten certification is to stop paying the rework tax
FileFlo does not get you certified, write your RSM or QCM, or run your quality system — that is your team’s job, and where most of the real cost lives. What FileFlo does is attack the one cost driver you can compress: documentation rework. One version-controlled, classified home for your draft manuals, capability list, organizational chart, personnel and training records, and technical-data references means fewer revision cycles, faster FAA review, and less carrying cost on facility and staff. Starter at $89/mo, Professional at $299/mo. 5-day free trial, no credit card required.
How Long It Takes — and What Sets the Pace
Part 145 has no fixed timeline clock. Part 135 applicants must file the formal application at least 90 days before intended operations (§119.35 — an applicant filing lead time, not a deadline for the FAA to act); Part 145 has no equivalent advance-filing rule in §145.51. That cuts both ways: there is no guaranteed timeline, but there is also no artificial ceiling — a well-prepared applicant can move efficiently, while an unprepared one can stall indefinitely.
The FAA manages certification as a phased workflow described in its inspector guidance, Order 8900.1 — that phase structure is guidance, not regulatory text, and the FAA can revise it. As a hedged 2026 planning estimate, a straightforward single-rating station commonly runs from several months to roughly a year from first contact to certificate; broader scopes, complex articles, and foreign locations run longer, and some projects stretch well beyond a year. For the step-by-step process behind these phases, see how to get a Part 145 repair station certificate.
The four levers that set your timeline
Document quality and completeness (the one you control)
The FAA's review concentrates on your RSM and QCM. A complete, internally consistent, well-organized manual set moves; an incomplete or conflicting one gets returned, and each revision cycle adds time. This is the single biggest lever you actually control, which is why it gets its own section below.
Breadth of ratings and scope
More ratings and more complex articles mean more for the FAA to evaluate — more capability to verify, more equipment and data to inspect, more manual content to review. A narrow first scope certificates faster than a sprawling one; you can always add ratings later.
Your Flight Standards office's workload
The FAA has finite certification capacity and a queue. Office workload and staffing directly affect how quickly your project advances — a variable largely outside your control, which is one reason early, organized engagement helps.
Mid-process changes
Adding a rating, changing key personnel, or moving the facility during certification can trigger re-evaluation and reset progress. Locking your scope and organization before you submit keeps the clock moving forward instead of sideways.
Where the regulation ends and the guidance begins
Be precise about what is binding. The contents of your application are regulatory — §145.51(a) lists them. There is no regulatory timeline for Part 145 certification the way there is for Part 135. The phased workflow the FAA uses to get from your submission to issuance is Order 8900.1 guidance, which the FAA can and does revise. Treat any duration as a planning estimate and confirm the current process and queue with your Flight Standards office.
The timeline does not end at issuance, either — the certificate is the start of a continuous recordkeeping obligation. For what that ongoing burden looks like, see Part 145 repair station recordkeeping requirements and what inspectors ask for in your audit binder.
The Rework Tax: Where Cost and Time Compound
Here is the dynamic that connects the cost section and the timeline section into one number: documentation rework. The FAA’s document review concentrates on your repair station manual and quality control manual (§§145.207, 145.211). When that manual set is incomplete, internally inconsistent, or built from conflicting drafts, it gets returned for correction. Each revision cycle is not just lost calendar time — it simultaneously extends every carrying cost you are paying while you wait: facility lease, payroll for staff who cannot yet bill, data subscriptions, and consultant hours to fix and resubmit. Rework taxes cost and time at the same time.
What keeps cost and time down
What inflates cost and time
The manuals are where most of the rework lives
Because the FAA’s review concentrates on the RSM and QCM, getting those two manuals right the first time is as much a cost-control exercise as a compliance one. For the manuals in depth, see how to write a repair station manual and QCM, the practical repair station manual template, and the records angle in the RSM/QCM records guide.
A note on drug & alcohol and SMS — two cost questions people get wrong
Two common budget surprises are worth flagging because operators routinely over- or under-estimate them. First, drug and alcohol testing: under 14 CFR Part 120, a U.S.-located Part 145 station may elect to have an antidrug and alcohol-misuse-prevention program; many do because their air-carrier customers require it. If you adopt one, it is a real ongoing cost. See Part 145 repair station drug & alcohol testing and the related Part 135 drug & alcohol program records checklist.
Second, the 2027 SMS mandate. The FAA’s 2024 Safety Management System rule (14 CFR Part 5, single compliance date May 28, 2027) requires an SMS of Part 121 air carriers, Part 135 operators, §91.147 air-tour operators, and certain Part 21 holders — and §5.1 does not list Part 145 repair stations in that general mandate. So do not budget for a Part-5 SMS as if the 2027 date applied to your shop; it generally does not. Your Part 135 customers, however, are racing toward it and may push SMS-style expectations onto vendors. To understand the rule your customers face, see the FAA Part 135 SMS 2027 deadline, Part 135 SMS requirements, the Part 135 SMS gap analysis, and the frameworks in safety assurance under SMS Part 5 and safety risk management under Part 135. Whether your station must do an SMS at all is covered in does a Part 145 repair station need an SMS.
FileFlo is the documentation-readiness cost-reducer — not the certification consultant
To be unambiguous about what FileFlo does and does not do: FileFlo is a compliance document intelligence platform that classifies, indexes, version-controls, and tracks expirations on your compliance documents. It does not obtain your certificate, write your RSM or QCM, build or run your quality control system or training program, conform your facility, interact with the FAA, perform drug-and-alcohol testing, or provide legal, tax, or financial advice. Your accountable manager, your quality and technical staff, your testing provider, and your aviation counsel or certification consultant own that work — and that is where most of the real cost sits. What FileFlo compresses is the documentation-rework cost: one organized, version-controlled home for your draft manuals, capability list, roster, and training and work records means fewer revision cycles, faster FAA review, and lower carrying cost — during certification and for the life of the certificate. (FileFlo does not claim SOC 2 certification.)
Frequently Asked Questions
How much does Part 145 certification cost?
There is no published FAA fee for a domestic Part 145 repair station certificate, and no fixed price, so any number you see is an industry planning estimate, not a quote. The real cost is everything you must build and carry to prove capability before your first billable work order: appropriate housing and facilities (14 CFR §145.103), the equipment, tooling, and calibrated test gear for your ratings (§145.109), current technical data and subscriptions, qualified personnel salaries carried through a months-long process (§145.151), and manual development — an in-house or consultant-written repair station manual and quality control manual (§§145.207, 145.211). As a hedged 2026 planning range, a narrow single-rating shop is commonly budgeted in the low-to-mid tens of thousands of dollars for soft costs, while a broad-scope facility with specialized tooling can run into the hundreds of thousands or more — driven mostly by facilities, equipment, and headcount, not by FAA fees. Your real number depends on your ratings, your articles, and your location. Sources: 14 CFR §145.103; §145.109; §145.151; industry cost estimates, 2026.
How long does it take to get a Part 145 certificate?
There is no single regulatory deadline that fixes how long Part 145 certification takes — unlike Part 135, where the applicant must file the formal application at least 90 days before intended operations (§119.35), Part 145 has no equivalent advance-filing rule in §145.51. In practice the timeline depends on your FAA Flight Standards office's workload, the breadth of ratings you request, the complexity of your facility and articles, and — the variable you actually control — how complete and conforming your repair station manual, quality control manual, training program, and supporting records are when you submit them. Industry experience commonly puts a straightforward single-rating station somewhere from several months to roughly a year from first contact to certificate, with broader scopes and foreign locations running longer; some complex projects stretch well beyond that. Treat any specific duration as a 2026 planning estimate, not a guarantee, and confirm the current process with your Flight Standards office. Sources: 14 CFR §145.51; FAA Order 8900.1 (guidance); industry experience, 2026.
What drives the cost of opening a repair station?
Five cost centers drive almost the entire budget, and FAA fees are not one of them for a domestic station. First, housing and facilities — §145.103 requires space sized to your ratings with segregation, environmental controls, and storage, which usually means a lease or build-out. Second, equipment and tooling — §145.109 requires the equipment, tools, materials, and calibrated test gear your ratings demand, on premises and under your control; specialized avionics or turbine test sets are expensive. Third, personnel — §145.151 requires an accountable manager plus qualified supervisory and inspection staff whose salaries you carry through a months-long process with no revenue. Fourth, technical data — §145.109(d) requires current manuals, airworthiness directives, instructions for continued airworthiness, and service information, which means ongoing subscriptions. Fifth, manuals and consulting — writing a conforming RSM and QCM (§§145.207, 145.211), often with a certification consultant. The breadth of ratings you request multiplies most of these. Sources: 14 CFR §145.103; §145.109; §145.151; §145.207; §145.211.
Does the FAA charge a fee for a Part 145 certificate?
For a repair station located inside the United States, there is no FAA application or certificate fee — the cost is the organization you must build, not a government charge. Foreign-located repair stations are different: §145.51(c) provides that a repair station located outside the United States must include additional information and pay fees the FAA prescribes. So if you are certificating a domestic station, do not budget for an FAA fee; budget for facilities, equipment, personnel, technical data, manuals, and the working capital to carry them through certification. If you are certificating abroad, add the FAA's foreign-station fees on top. Always confirm current fee provisions with your Flight Standards office or the FAA, since fee schedules can change. Sources: 14 CFR §145.51(c); industry cost estimates, 2026.
Why does Part 145 certification take so long?
The single biggest delay driver is rework. The FAA's review concentrates on your repair station manual and quality control manual, and an incomplete or internally inconsistent manual set gets returned for correction — each revision cycle adds time, and every cycle also extends the carrying cost on your facility and staff. Beyond rework, the timeline is paced by your Flight Standards office's workload (the FAA has finite certification capacity and a queue), the breadth of ratings you request (more ratings means more to evaluate), the complexity of your facility and articles, and changes you make mid-process — a new rating, a personnel change, or a facility move can trigger re-evaluation. The applicants who move fastest arrive with a complete, conforming, well-organized document set; the ones who stall cycle through manual rejections. Document quality and organization is the lever you actually control. Sources: 14 CFR §145.51; §145.207; §145.211; FAA Order 8900.1 (guidance).
Do I need a consultant to get a Part 145 certificate, and what does that add?
You are not required to hire a consultant — nothing in Part 145 mandates one — but many applicants use a certification consultant to draft the repair station manual and quality control manual, organize the application package, and shepherd the process through the FAA. The trade-off is real money: consulting fees are an added soft cost, but a well-built manual set reduces the rework cycles that are the biggest source of delay (and of extended carrying costs on facility and staff). Whether to outsource is a budget-versus-time-versus-in-house-expertise decision. Either way, the manuals and records are yours to own and keep current for the life of the certificate, so the documentation has to be maintainable, not just acceptable once. Treat any consulting fee figure you find as a hedged 2026 estimate that varies widely by scope and provider. Sources: 14 CFR §145.207; §145.211; industry cost estimates, 2026.
How do ongoing costs compare to startup costs for a repair station?
Startup cost is the one-time build — facility build-out, initial tooling and calibrated equipment, manual development, initial technical-data subscriptions, and the salaries you carry through certification before any revenue. Ongoing cost is what recurs after the certificate issues: recurrent training (§145.163), calibration cycles on test equipment (§145.109(b)), technical-data subscription renewals, manual revisions whenever a regulation or your capability changes (§§145.207, 145.211), recordkeeping, and the labor of staying ready for FAA surveillance. Many startup plans underestimate the ongoing side — the certificate is the start of a continuous obligation, not a finish line. Both sides are dominated by people, facilities, equipment, and documentation, not by FAA fees (domestic). Plan for both as separate line items. Sources: 14 CFR §145.109; §145.163; §145.207; §145.211.
Does FileFlo reduce the cost of Part 145 certification?
FileFlo does not get you certified, write your repair station manual or quality control manual, build your training program, run your quality system, conform your facility, interact with the FAA, or provide legal advice — those are functions of your accountable manager, your quality and technical staff, and your aviation counsel or certification consultant, and they are where most of the real cost lives. What FileFlo does is attack one specific, expensive cost driver: documentation rework. As a compliance document intelligence platform, FileFlo classifies, indexes, version-controls, and tracks expirations on the documents the §145.51 application demands and the operating records you keep afterward. One organized, version-controlled home for your draft RSM and QCM, capability list, organizational chart, personnel and training records, and technical-data references means fewer "which version is live?" mistakes, faster FAA document review, and less of the revision-cycle rework that extends both the timeline and the carrying costs on your facility and staff. It is the proof layer that lowers the documentation-readiness cost — not a substitute for the consultant, and it does not claim SOC 2 certification.
Lower the documentation-readiness cost of certification
FileFlo organizes and version-controls your Part 145 application document set — draft RSM and QCM, capability list, organizational chart, personnel and training records, technical-data references — so the FAA’s review moves faster and the rework that inflates both cost and timeline is easier to avoid. After certification, it keeps your work records, roster, training, and capability list audit-ready. AI document classification. 600+ document types. One-click FAA surveillance binder. Starter at $89/mo, Professional at $299/mo. No credit card required for the 5-day free trial. FileFlo does not get you certified, write your manuals, or quote you a price — it organizes and proves your repair-station records.
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Continue your Part 145 certification reading
Reviewed by Chad Griffith, Founder, FileFlo — compliance document intelligence. Last reviewed June 15, 2026. Cost drivers are verified against the Cornell Legal Information Institute eCFR: housing and facilities (14 CFR §145.103), equipment and materials including calibration and technical data (§145.109), personnel (§145.151), the repair station manual (§145.207), and the quality control system (§145.211); the foreign-station fee provision is §145.51(c) and the elective drug-and-alcohol program is under 14 CFR Part 120. There is no published FAA fee for a domestic certificate. The phased certification workflow is FAA Order 8900.1 guidance, not regulatory text, and the FAA may revise it — confirm the current process, queue, and any fees with your Flight Standards office. The 2024 SMS rule (14 CFR Part 5; compliance date May 28, 2027) applies to Part 121, Part 135, §91.147, and certain Part 21 holders per §5.1, and does not list Part 145 repair stations in the general mandate. Every dollar figure and timeline is a hedged industry planning range as of 2026, not a quote or guarantee. Not legal, tax, or financial advice.