How Much Does an Ankle Monitor Cost?

Updated on August 18, 2026 | Written by Alec Pow
This article was researched using 14 sources. See our methodology and corrections policy.

Court-ordered ankle monitoring can cost the monitoring system about $2.66 to $8.95 per day in current federal examples, or roughly $80 to $269 for 30 days. The person wearing the device may pay $0, a co-payment, a fixed local fee, or the full program charge depending on the court, state, county, supervision phase, and ability-to-pay rules. U.S. Courts puts the federal system’s broader location-monitoring cost at about $4 per day in its federal location-monitoring data.

There is no national consumer price for an ankle bracelet. Current public programs range from free pretrial monitoring in some counties to daily participant charges of $10 or more, sometimes with intake, setup, administrative, or device fees. A private GPS tracker sold online is not a valid substitute price because court monitoring includes supervision, tamper reporting, schedules, alert handling, and court-ordered restrictions.

Ankle monitor cost is best separated into two numbers: what the government or monitoring program pays for the service and what the participant is legally required to reimburse. Those amounts can be very different.

Article Highlights

• Current federal RF examples run from $2.66 to $3.62 per day, while federal GPS examples run from $4.07 to $8.95 per day.
• A $4.69 daily GPS rate becomes $140.70 (at $30 per hour, earning that amount would take about 4.7 hours of work, before taxes) over 30 days and $1,711.85 over 365 days.
• Some pretrial programs charge the participant $0, while county home-detention programs can charge $10 per day plus intake or setup fees.
• North Carolina law can add a $90 electronic-monitoring device fee plus a daily charge reflecting the actual monitoring cost for qualifying house-arrest cases.
• Federal post-conviction participants pay a co-payment only when ordered by the court, and federal prerelease participants are not required to pay location-monitoring service costs.
• Retail GPS subscriptions should not be compared with court-ordered electronic monitoring because the service scope is different.

How Much Does an Ankle Monitor Cost?

Program or technology	Published cost	Who the number applies to
Eastern District of Michigan RF	$2.66/day landline or $3.62/day cellular	Federal program cost published by Eastern Michigan Pretrial Services.
Western District of Michigan GPS	$4.69 to $8.95/day	Federal monitoring cost that varies by GPS level in the Western Michigan program.
Delaware County, Pennsylvania pretrial GPS	$0 to the participant	The county states that pretrial GPS supervision has no participant charge.
Scott County, Iowa electronic monitoring	$10 (about 20 minutes at $30 per hour)/day	Participant charge under the county’s electronic-monitoring program.
Douglas County, Colorado in-home detention	$10/day + $50 intake	Participant charge on the county’s in-home detention fee page.
North Carolina house arrest with electronic monitoring	$90 device fee + actual daily cost	State-law charge under North Carolina probation law, subject to a good-cause exemption process.
Boone County, Indiana GPS with SleepTime	$13/day plus listed program fees	County community-corrections pricing published on its GPS monitoring fee schedule.

The table mixes program cost and participant charges on purpose because those are the two prices readers most often confuse. A federal district may publish the cost of the monitoring technology while a county page publishes the amount billed to the person. Neither number should be described as a national ankle-monitor rate.

What This Is in Plain Terms

Electronic monitoring is a court or supervision tool, not a consumer tracking subscription. An ankle-worn GPS unit can record a participant’s location around the clock and report events to supervising officers. Radio-frequency monitoring is commonly tied to whether the participant is inside or outside an approved residence.

Federal guidance describes GPS ankle units as non-removable, waterproof, shock-resistant devices that must be charged as directed and can use GPS, cellular towers, and Wi-Fi to determine location. The supervising authority sets the restriction level, which can range from a curfew to home detention or home incarceration.

The participant usually does not choose the device simply because one model is cheaper. The technology and restrictions are tied to the court order, supervision needs, local program, and officer procedures. Federal monitoring guidance explains those technology differences.

Program Cost

The federal payment rules show why a single “ankle monitor costs $X per day” answer can mislead. At the pretrial stage, U.S. Courts says location-monitoring expenses can be paid through a combination of Judiciary funding and participant co-payments.

On probation or supervised release, a participant pays a co-payment only if the court orders one. Federal prerelease participants are not required to pay for location-monitoring services. Those rules appear in the Judiciary’s location-monitoring payment guide.

State systems can use a different model. Florida’s 2025 probation and community-control statutes allow the Department of Corrections to charge a person on electronic monitoring up to the full cost of the service, while also allowing exemptions based on specified financial and personal circumstances. The relevant payment and monitoring provisions sit within Florida Chapter 948.

This is why two people wearing similar GPS ankle units can receive completely different bills. One may be in a publicly funded pretrial program and owe $0. Another may be on county home detention at $10 (about 20 minutes at $30 per hour) per day. A third may face a state device fee plus the program’s daily cost.

Daily Rates Over Time

Daily pricing looks small until monitoring lasts for months. Using the Western District of Michigan federal GPS rates, $4.69 per day becomes $140.70 for 30 days, $844.20 for 180 days, and $1,711.85 for 365 days.

At the high end of the same published GPS range, $8.95 per day becomes $268.50 for 30 days, $1,611 for 180 days, and $3,266.75 for one year.

Those figures describe the monitoring service cost signal, not an automatic participant invoice. The court or local program still decides whether the person pays none, part, or all of that amount.

The Eastern Michigan page also lists voice verification at $1.52 per day and the SmartLINK mobile application at $0.60 per day. Those technologies can be cheaper than ankle-worn GPS, but they are different supervision tools and are not substitutes a participant can simply select at checkout.

Taxpayer Cost vs Participant Cost

Electronic monitoring can also be evaluated as a government spending question. U.S. Courts estimates federal location monitoring at approximately $4 per day, compared with $106 per day for pretrial detention and $136 per day for post-conviction imprisonment.

Over 365 days, those published figures equal about $1,460 for location monitoring, $38,690 for pretrial detention, and $49,640 for post-conviction imprisonment. The difference between the monitoring figure and the pretrial-detention figure is about $37,230 per person per year.

That comparison is a taxpayer-cost calculation. It does not show whether electronic monitoring is appropriate in an individual case, and it does not mean the monitored person is billed $4 per day.

Hidden Fees

Daily monitoring is only one possible charge. North Carolina’s current house-arrest rule adds the cited $90 device fee before the daily actual-cost charge. Douglas County adds a $50 intake fee to its $10 daily monitoring rate.

Boone County publishes a longer list. Its current GPS page states a minimum daily charge of $10, a $13 daily GPS-with-SleepTime rate, a $25 pre-screen fee, a $140 hookup fee, and a $50 administrative fee. It also lists a $20 charge for some non-court-ordered location changes or bracelet removals, a $50 drug-screen fee, and a possible $50 transfer fee.

Do not assume every program charges those items. They are Boone County-specific examples showing why a daily rate alone can understate the first month’s bill.

There can also be indirect household costs that do not appear on the monitoring invoice, such as travel to installation or check-ins, time away from work, charging access, or costs tied to another supervision condition. Those should be kept separate from the device fee so the reader can see which amounts are imposed by the monitoring program and which arise from complying with the broader court order.

Three Real Ankle-Monitor Cost Scenarios

Free pretrial GPS scenario

Delaware County, Pennsylvania states that people on pretrial GPS supervision are assessed $0 for the monitoring service. The device still has a real program cost, but the participant does not receive that charge.

Thirty days of county in-home detention

Douglas County charges $10 per day plus a $50 intake fee. For 30 days, the math is $300 in daily monitoring plus $50 intake, producing a $350 total.

Worked example: Boone County GPS with SleepTime

Using the currently listed Boone County charges for a participant subject to the cited upfront fees:

• Pre-screen fee: $25
• Hookup fee: $140
• Administrative fee: $50
• 30 days at $13 per day: $390
• 30-day total: $605

That worked total does not include a drug screen, transfer, special bracelet removal, or any other charge that may not apply to the case. The same 30-day period would cost $300 under Scott County’s simple $10 daily rate and $0 for the participant in Delaware County’s cited pretrial program.

Who This Cost Estimate Applies To

Makes sense if:

• You are trying to budget a court-ordered or supervision-program monitoring fee.
• You know the jurisdiction, supervision stage, and technology involved.
• You separate the program’s daily cost from the participant’s required payment.
• You check for setup, intake, device, administrative, transfer, or testing charges in the actual fee schedule.

Does not make sense if:

• You are using a consumer GPS tracker price as a substitute for a court-monitoring quote.
• You assume a federal technology rate is what every participant must personally pay.
• You apply one county’s fee schedule to a different state or court.
• You treat an ankle monitor as an optional retail purchase when the court or supervising authority controls the condition.

What We Verified

• Checked a March 2026 Alameda County warning stating that its pretrial services are free and that families should not pay callers claiming money is required for ankle monitoring or release.
• Confirmed in federal pretrial supervision instructions that GPS participants may have daily charging requirements and that tampering or failure to follow equipment rules can trigger supervision consequences.
• Cross-referenced an ACLU electronic-monitoring report that documented historical wearer fees from $3 to $35 per day plus setup charges in some jurisdictions. That range is context for fee variation, not a 2026 national price.

Related Supervision and Court Costs

Electronic monitoring may sit beside other court-ordered expenses rather than replacing them. Drug and alcohol testing costs can become a separate recurring expense when testing is part of supervision. Someone seeking to shorten a supervision period may also need to distinguish monitoring charges from the costs tied to early probation termination, court filings, legal representation, fines, and unpaid obligations.

Answers to Common Questions

How much does an ankle monitor cost per day?
Current federal technology examples run from $2.66 to $8.95 per day. Local participant fees can be $0, $10 per day, or another amount set by the program.

How much does an ankle monitor cost for one month?
At $4.69 per day, 30 days cost $140.70. At $8.95 per day, 30 days cost $268.50. Setup or local program fees can raise the participant’s bill.

Do you have to pay for your own ankle monitor?
Not in every program. Some participants owe $0, some make court-ordered co-payments, and some state or county programs charge daily fees or the full monitoring cost.

Can someone buy a cheaper GPS tracker instead?
No retail tracker price should be treated as a substitute for court-ordered monitoring. The supervising authority determines the approved technology and compliance rules.

Can ankle-monitor fees be waived?
Some jurisdictions provide exemptions or ability-to-pay provisions. The exact rule depends on the court, statute, and program, so the current order and local fee policy control.