What Is a PACE Lien and How Does It Work?

A PACE lien is a special assessment recorded against your property to repay financing for energy-efficient upgrades, renewable energy systems, water conservation, or, in some programs, resilience improvements. The debt attaches to the property rather than to you personally, and you pay it off through your regular property tax bill. That structure sounds convenient, but it carries consequences that reach into your mortgage, your ability to sell or refinance, and what happens if you fall behind.

How the Lien Gets on Your Property

PACE stands for Property Assessed Clean Energy. Instead of borrowing from a bank, you receive funding through a program run by your local government or a private administrator working on its behalf.¹ After approval, the assessment is recorded in public land records as a lien against your property.²

To apply, you generally need clear title, current mortgage payments, and current property taxes. The proposed project must fall within the program’s approved categories, and you’ll submit cost estimates and contractor information.

Commercial PACE programs require written consent from your existing mortgage lender before recording the assessment. Residential programs have historically been less consistent about that step, which is one reason the mortgage industry has pushed back on residential PACE.

Once the lien is recorded, anyone who searches your title will see it: buyers, lenders, and title companies. The contractor completes the work, and funds are disbursed either directly or in stages depending on the program.

What PACE Financing Can Pay For

Eligible improvements fall into a few broad categories: energy efficiency (HVAC, insulation, windows, lighting, cool roofing), renewable energy (solar panels, solar water heating, small wind, geothermal, battery storage), and water conservation (low-flow fixtures, irrigation controls, rainwater harvesting, greywater systems).³

Some programs also cover resilience upgrades in seismic or hurricane-prone regions, such as structural retrofitting, storm shutters, or backup generators. Electric vehicle charging stations qualify in many commercial programs. The exact list depends on your local program, so verify eligibility before you commit to a project.

Repayment, Interest, and the Total Cost

Repayment is collected as an added line on your property tax bill, in annual or semi-annual installments.¹ Terms can run up to 20 years and are usually tied to the useful life of the improvement.³ A solar array might carry a longer term than a lighting retrofit.

Interest rates generally fall between 5% and 10%.³ That’s above typical mortgage rates and below many unsecured personal loans. Prepayment rules vary: some residential programs charge nothing for early payoff, and some commercial programs charge a penalty.

One thing catches people off guard. Because you put no cash down, the annual payment can look manageable while the total cost, principal plus years of interest, ends up well above what other financing would have cost. Run the full repayment math before signing, not just the annual number.

Why the Lien Sits Ahead of Your Mortgage

PACE assessments are structured like other municipal tax assessments, so past-due PACE payments take senior priority over your mortgage in a foreclosure. If the property goes to a tax sale, delinquent PACE amounts get paid before your mortgage lender sees anything.³

Only the overdue portion jumps ahead of the mortgage, not the entire remaining PACE balance. Even that limited priority makes mortgage lenders uncomfortable. Some programs offer limited subordination, where the mortgage still gets paid first in a foreclosure, but availability depends on the specific program and the state’s enabling law.⁴

Selling or Refinancing With a PACE Lien

This is where the priority issue turns from theoretical to expensive.

Freddie Mac will not purchase mortgages on properties where a PACE obligation could take priority over the mortgage lien. It will buy the loan only if the PACE lien is truly subordinate, and most residential PACE liens are not structured that way.⁵ Fannie Mae has maintained a similar restriction since 2010. Between them, the two entities back the majority of conventional home loans in the United States.

The practical result: a buyer who needs a conventional mortgage generally cannot close on your home while an active PACE lien sits on it. Sellers frequently end up paying off the remaining PACE balance at closing, which can amount to tens of thousands of dollars. The assessment can technically transfer to a new owner who agrees to assume it, but most buyers finance through conventional channels and can’t take that on.³

Refinancing runs into the same wall. A new mortgage lender facing a senior PACE lien is in the same position as Fannie Mae or Freddie Mac, and many simply won’t refinance under those conditions. If you’re weighing PACE for your home, this constraint deserves more weight in your decision than the monthly payment.

What Happens If You Fall Behind

PACE assessments carry the same enforcement tools as property taxes. Miss a payment and you’ll owe late penalties and interest at the rates your county charges for delinquent taxes. If the delinquency continues, the local tax authority can initiate the same collection process used for unpaid property taxes, which can lead to a lien sale or foreclosure.¹

Outright foreclosures over PACE delinquencies are rare. Late payments are not, and the penalties compound quickly.³ If payments are becoming a problem, contact your program administrator early. Some programs offer hardship provisions or payment modifications.

There’s a second layer of risk. Most mortgage agreements require borrowers to stay current on all property-related obligations, including tax assessments. Falling behind on PACE while staying current on the mortgage itself can still put you in violation of your mortgage terms.

New Federal Consumer Protections in 2026

Residential PACE has drawn criticism for aggressive contractor sales tactics and for assessments placed on homeowners who didn’t fully understand what they were signing. In December 2024, the Consumer Financial Protection Bureau finalized a rule bringing residential PACE transactions under the Truth in Lending Act through amendments to Regulation Z. It takes effect on March 1, 2026.⁶

PACE providers must evaluate whether you can afford the payments before approving financing, similar to mortgage underwriting standards.
You’ll receive a Loan Estimate before closing and a Closing Disclosure at closing, using the same TILA-RESPA Integrated Disclosure forms as mortgages, showing total financing cost, interest rate, and payment schedule in a uniform format.⁷
You’ll have a three-business-day right of rescission after closing to cancel without penalty. Some states already provided a similar window; the federal rule sets a nationwide baseline.
If a provider violates these requirements, you can sue for damages under TILA.⁶

Before this rule, residential PACE operated largely outside federal consumer lending regulation. If you’re exploring residential PACE financing on or after the effective date, confirm that the program is complying with these requirements before you sign anything.

1
Consumer Financial Protection Bureau. What Is a PACE Loan?
2
U.S. Department of Energy. Commercial PACE Financing and the Special Assessment Process
3
U.S. Environmental Protection Agency. Commercial Property Assessed Clean Energy
4
National Conference of State Legislatures. Financing Clean Energy Projects Through Property Assessments
5
Freddie Mac. Refinancing and Energy Retrofit Programs
6
Consumer Financial Protection Bureau. Residential Property Assessed Clean Energy Financing (Regulation Z)
7
Consumer Financial Protection Bureau. Property Assessed Clean Energy (PACE) Transactions