Avionics Financing: How to Pay for a Panel Upgrade, From ADS-B Out to Full Glass
This guide is for owners with a panel project in mind, from finishing ADS-B Out to a full glass retrofit. It covers what packages typically cost installed, which kinds of loans can fund them, computed payments, and how to line up the shop's deposit with when the loan actually funds.
How much does an avionics upgrade cost?
The same box can cost very different amounts to install in different airplanes. Existing wiring, the panel layout, antenna work, whether an STC exists for your model, and what old equipment has to come out all move the labor. The bands below are rough 2026 planning figures for installed work in a typical piston single. They are not quotes.
| Package | Examples | Rough installed band | What drives the cost |
|---|---|---|---|
| ADS-B Out compliance only | Wingtip or tail beacon, or an ADS-B transponder | ~$2,500–$7,000 | Beacon vs panel transponder. Whether ADS-B In and a display are added |
| WAAS GPS navigator | Garmin GTN 650Xi or GNC 355, Avidyne IFD series | ~$12,000–$30,000 | Slide-in replacement of an older unit vs new wiring, antennas and interfacing |
| Electronic flight instruments | One or two Garmin G5 or GI 275 units | ~$6,000–$20,000 | Number of units, backup batteries, vacuum system removal |
| Digital autopilot | Garmin GFC 500, Genesys S-TEC 3100 (where STC'd for your model) | ~$20,000–$45,000 | Number of axes, servo installation, any required compatible display |
| Integrated glass PFD/MFD | Garmin G3X Touch (certified) or G500 TXi | ~$30,000–$70,000 | Display count and size, engine monitoring integration, panel rework |
| Full panel | Glass displays, GPS navigator, autopilot, audio panel, engine monitor, new panel | ~$80,000–$150,000+ (twins higher) | Custom panel fabrication, rewiring, number of systems replaced |
Installation labor is a big part of the bill. Wiring, antennas, panel cutting, testing and certification paperwork add a substantial amount on top of the hardware. That paperwork includes the STC or field approval, a Form 337 for major alterations, and the updated weight and balance and equipment list. Compare installed quotes, not box prices. Ask each shop to itemize equipment, labor and miscellaneous parts separately, because a secured lender may fund only part of that.
One requirement to keep in mind: since January 1, 2020, 14 CFR 91.225 has required ADS-B Out in most airspace where a transponder is required. If your aircraft still lacks it, that line comes first.
Which loan types can fund a panel project?
| Option | What it can cover | Cost vs other options | Main trade-off |
|---|---|---|---|
| Cash-out refinance or aircraft-secured loan | Up to 80–85% of post-upgrade value (AOPA). Labor often excluded | Usually lowest rate, longest term | Replaces your current loan. Appraisal and closing time |
| Unsecured personal loan | Equipment and labor | Usually higher | Shorter term, higher payment, loan-size limits |
| HELOC or home-equity loan | Equipment and labor | Often competitive; HELOCs usually variable | Your home secures an aircraft project |
| Shop or manufacturer program | Varies by program | Varies; compare the APR | Programs change. Promotional rates can expire. Check for liens and fees |
| Business credit (business-use aircraft) | Varies | Varies | Needs a business borrower. Get tax treatment confirmed by a CPA |
AOPA Aviation Finance summarizes the secured-loan view: aircraft lenders "use the aircraft as collateral and can provide financing for up to 80%-85% of the post-upgrade value," and "in most cases, labor and installation cannot be financed" (AOPA). Lenders' rules differ, so ask the question directly: does the lender size the loan on the invoice, the equipment cost, or the as-completed appraisal?
What do avionics loan payments look like?
The tables are computed, not estimated. The rates span what major aviation lenders quoted for piston aircraft as of September 2026 (AOPA lists 6.99% to 9.99%; FLYING Finance lists certified-piston rates from 7.01%). Unsecured loans may cost more.
| Term | 7.00% APR | 8.50% APR | 10.00% APR |
|---|---|---|---|
| 5 years (60 mo) | $990/mo $9,404 interest | $1,026/mo $11,550 interest | $1,062/mo $13,741 interest |
| 7 years (84 mo) | $755/mo $13,389 interest | $792/mo $16,513 interest | $830/mo $19,725 interest |
| 10 years (120 mo) | $581/mo $19,665 interest | $620/mo $24,391 interest | $661/mo $29,290 interest |
Loan amount $50,000. Principal and interest only; excludes insurance, taxes and fees. Illustrative, not a quote.
- $15,000 ADS-B or GPS project on a 5-year personal loan at an assumed 9%: $311 a month, $3,683 total interest.
- $100,000 full panel rolled into a 15-year aircraft-secured loan at 7.75%: $941 a month, $69,430 total interest.
Match the term to how long you'll own the airplane. Avionics age, and paying interest on a panel you sold five years ago is poor value. For the upgrades most likely to hold their value at resale, see avionics upgrade resale value.
Worked example: financing a $55,000 panel through a cash-out refinance
Assumptions, for illustration only: the aircraft is worth $150,000 today and the owner owes $60,000. The project is a GPS navigator, autopilot and electronic flight instruments, quoted at $33,000 equipment plus $22,000 labor. The lender appraises it at $170,000 as-completed. That is $20,000 more than today, which is less than the project cost, as is normal. The lender caps loan-to-value at 80%, so the maximum loan is $136,000.
| Lender funds the full project | Lender funds equipment only | |
|---|---|---|
| New loan amount | $115,000 | $93,000 |
| Loan-to-value | 68% | 55% |
| Monthly payment | $944 | $763 |
| Cash needed for the project | $0 (plus any deposit timing gap) | $22,000 |
Both loans exceed $75,000, so a 20-year term is available for a single under AOPA's guidelines. For a twin, expect 10 to 15 years. If your existing loan carries a rate well below today's, compare this with leaving it alone and funding the project with a separate personal loan. Run both in the refinance calculator.
Want numbers for your specific aircraft?
Share the aircraft and timeline — a financing specialist will come back with rate, term and down-payment options.
When do you pay the shop, and when does the loan fund?
Timing is where panel projects most often run short of cash. Shop practices vary, but the sequence usually looks like this:
| Stage | What the shop may ask for | What the lender may do |
|---|---|---|
| Quote accepted, slot booked | A deposit to hold the slot | Pre-qualification (typically 1–3 business days) |
| Equipment ordered | Some shops want equipment paid, or a larger deposit, before ordering | Underwriting and appraisal |
| Installation (weeks) | Sometimes progress payments on long projects | Usually nothing yet |
| Completion and paperwork | Balance due before the aircraft is released | Funding at closing, sometimes paid directly to the shop |
There are two ways to line these up:
- Close first, then install. Refinance before the project using the current appraisal, and use the proceeds for the deposit and final bill. It's simple, but the appraisal doesn't reflect the new panel, so you may get less.
- Install first, then close. Cover the deposit from cash or a short-term loan, and close when the as-completed appraisal is available. You may get a larger loan, but you need to bridge the gap. Ask whether the lender will appraise "subject to completion" from the signed quote. Some will, and that can remove the bridge.
Either way, get the shop's payment terms and the lender's funding conditions in writing before you book the slot. Also tell your insurer about the upgrade: hull value should reflect the new equipment, and lenders typically require hull coverage with the lender as loss payee. See insurance requirements.
What do lenders need for an avionics loan?
- Credit: most aviation lenders look for 680+, with the best pricing typically from around 720 to 730. See credit score requirements.
- A signed, itemized quote separating equipment, labor and miscellaneous parts, with model numbers.
- An appraisal, as-is or as-completed, and the aircraft's logbooks.
- Proof of insurance meeting the lender's hull and loss-payee requirements.
- After completion: logbook entries, the Form 337 or STC paperwork, and the updated weight and balance, which lenders and later buyers will ask to see.
How to keep a panel project affordable
- Phase it only along a planned path. Choose equipment that works together so a GPS navigator now can drive an autopilot later. Buying twice is the most expensive way to finance anything.
- Pair the downtime. Schedule the installation around the annual inspection when you can, to share access labor and downtime.
- Don't finance past your ownership horizon. Keep the term within the years you expect to own the airplane.
- Keep a cash cushion. Installs uncover surprises, such as old wiring or corroded antenna mounts.
- Business use: depreciation or expensing can change the after-tax cost. Confirm with a CPA before you sign. See the aircraft depreciation guide.
How this guide differs from related guides
This page covers paying for a panel project. For which upgrades tend to raise appraised value and marketability, and which rarely pay back, see avionics upgrade resale value. For refinancing mechanics, see refinancing your aircraft loan. For a whole-ownership budget, see the operating cost breakdown.
Frequently asked questions
Can you finance an avionics upgrade?
Yes. The usual routes are an aircraft-secured loan or refinance sized to the post-upgrade appraisal, an unsecured personal loan, home-equity borrowing, or a shop or manufacturer program. AOPA notes that aircraft lenders can finance up to 80% to 85% of post-upgrade value. If your aircraft is already financed, adding the upgrade typically means refinancing the existing loan.
Can avionics installation labor be financed?
Often not with an aircraft-secured loan. AOPA Aviation Finance says that in most cases labor and installation cannot be financed, so expect some out-of-pocket cost. Unsecured personal loans and home-equity borrowing can cover labor because the money isn't tied to the equipment. Ask your shop to split the quote into equipment and labor so you know the cash you'll need.
How much does a typical avionics upgrade cost?
It depends on scope and on the airframe. As rough 2026 planning bands, installed: ADS-B Out only, about $2,500 to $7,000; a WAAS GPS navigator, about $12,000 to $30,000; a digital autopilot, about $20,000 to $45,000; an integrated glass PFD/MFD, about $30,000 to $70,000; a full panel, $80,000 and up. Get written installed quotes.
What is the monthly payment on a $50,000 avionics loan?
At 8.5% APR, $50,000 costs about $792 a month over 7 years or $620 over 10 years, principal and interest only. At 7% over 10 years it is about $581. Piston aircraft loan rates quoted by major aviation lenders ran roughly 7% to 10% as of September 2026. Unsecured loans may cost more.
Do I have to refinance my aircraft loan to finance avionics?
Usually, if you want the lowest-rate option. Aircraft lenders use the aircraft as collateral, so AOPA notes a refinance may be needed to add upgrade costs to an existing balance. The alternatives leave your current loan alone: a personal loan, home-equity borrowing, or cash. Compare the rate on your existing loan with today's rates before refinancing it away.
When do avionics shops require a deposit?
Practices vary by shop. Many ask for a deposit to hold an installation slot or to order equipment, with the balance due at completion before the aircraft is released. Lenders often fund at closing or completion, not at booking. Get the shop's payment schedule in writing and decide in advance how you'll cover the deposit.