Guides
Prior approval vs file-and-use rate laws
Prior-approval states make insurers wait for sign-off before changing homeowners rates; file-and-use states do not. How each works and the trade-offs.
In a prior-approval state, an insurer cannot charge a new homeowners rate until the regulator approves it, or a statutory waiting period runs out and the filing is "deemed" approved. In a file-and-use state, the insurer files the rate and may begin using it, often after a short waiting period, and the regulator can object afterward. In a use-and-file state, the insurer can start charging the rate and file it within a set period afterward. Which system your state uses shapes how fast premiums can move and what a regulator can do about a rate it dislikes.
Neither system guarantees lower prices. Rates follow losses, reinsurance costs and rebuilding costs in both, and this guide does not claim that either regime reliably produces cheaper homeowners insurance.
The definitions
The NAIC's chart of rate filing methods, in its Fall 2022 edition, gives the standard definitions:
| System | What it means |
|---|---|
| Prior approval | Rates must be filed with and approved by the state insurance department before use. A deemer provision treats the rate as approved if it is not denied within a set number of days. |
| File and use | Rates must be filed before use. Specific approval is not required, but the department can disapprove later. |
| Use and file | Rates must be filed within a specified period after they go into use. |
| Flex rating | Prior approval is needed only if the change exceeds a set percentage above (sometimes below) the previously filed rate. |
| Modified prior approval | Changes to expense ratio or rate relativities need prior approval; experience-only changes are file and use. |
| No file | Rates need not be filed, but the insurer must keep records and produce them on request. |
Many states combine these. A state may use prior approval for some lines, file-and-use for others, a flex band for small changes, or switch based on whether it finds the market competitive. The label on a state's homeowners line is the one that matters.
How states differ in practice
The examples below come from the NAIC's Fall 2022 chart, which records each state's review date, and from our state guides. Laws change, so treat the list as illustrative and confirm in your state's current insurance code.
| State | Homeowners rate regime (as the NAIC chart described it in 2022) |
|---|---|
| California | Prior approval; deemed approved 60 days after public notice absent a hearing, or 180 days from receipt in any case |
| North Carolina | Prior approval; filings come from a rate bureau; up to 210 days (see North Carolina's rate bureau and homeowners rates) |
| Louisiana | Prior approval with a 45-day deemer |
| New York | Prior approval for personal lines (30 days, extendable to 75) |
| New Jersey | Prior approval for personal lines other than auto; filings up to 5 percent get a decision in 30 days |
| Texas | File and use |
| Florida | File and use (90 days) or use and file (30 days), at the insurer's option, per the 2022 chart |
| Colorado | File and use (30 days) for most property and casualty filings |
| Illinois | Use and file (10 days) for homeowners |
| Arizona | Use and file (30 days) |
Recent changes show the lines are not fixed. Nevada's AB 376 added a flex-rating program from January 1, 2026: a real property insurer can file an increase of up to 3 percent overall and per policyholder, which is deemed approved if the commissioner does not object within 15 days. Oklahoma's HB 3781, signed May 12, 2026, creates a file-and-use process effective July 1, 2027, after the commissioner said for a year that the law gave his department no authority to intervene in filed homeowners rates. These details come from our state guides; check each for the latest.
The case for prior approval
- A check before the money leaves your account. A regulator's actuary reviews the data before the rate hits policyholders, so an unsupported increase can be reduced.
- Public process. In California the commissioner must give notice of each application, and consumers can request hearings and intervene. See how insurers file rate increases with regulators.
- Predictability for consumers. The delay itself slows increases, which some homeowners value after a bad year.
The case against: delay can leave rates inadequate when costs rise fast. Insurers may respond by restricting new business, adding nonrenewals or leaving the state rather than selling at approved prices, which can mean fewer choices and more business in residual markets such as FAIR plans. This is a central argument in California, where the state's strategy for attracting insurers back is covered in California's Sustainable Insurance Strategy and california's home insurance crisis.
The case for file-and-use and use-and-file
- Speed. Rates can follow costs quickly, and insurers that price accurately are more willing to write in risky areas.
- Competition does the work. The theory is that a competitive market will discipline prices, so regulators should step in only when rates are excessive, inadequate or unfairly discriminatory.
- Lower administrative friction. Fewer filings sit in a queue for months.
The case against: consumers can see a large increase before anyone with authority has reviewed it. A regulator that disapproves after the fact has to claw back or order revisions, and homeowners may already have paid. A 2026 Oklahoma controversy over whether the department could even review filed rates is an example of how this tension plays out.
Texas shows a different angle. Under file-and-use, it has seen both steep increases after its hail and storm losses and, more recently, filings proposing decreases; our Texas guide describes the Texas Department of Insurance data. A looser filing system lets rates move quickly in both directions.
A hypothetical comparison
Say two neighboring states each see a 12 percent jump in reinsurance and claims costs, and an insurer wants a 10 percent increase.
- In a prior-approval state, the filing is submitted in January. The department asks questions, the insurer revises it, and approval of 7 percent arrives in May. The insurer's costs were higher for four months, and the new rate applies only to renewals after approval.
- In a file-and-use state, the insurer files the 10 percent rate in January and applies it to renewals starting after the waiting period. The regulator may question it later. If the department finds the rate excessive, it can order a change.
The homeowner pays more sooner in the second state, and the insurer may be more willing to keep writing. Real outcomes depend on the actuarial evidence, the department's staffing and the market, not on the label alone.
What this means for you
- Look up your state's rating law in the department's rate regulation page or the NAIC chart, and check the date.
- Use public access to filings. In most states, the insurer's filing is searchable through SERFF Filing Access on the department site.
- Know your lever. In prior-approval states with hearings, you can comment or request one. In file-and-use states, a complaint after the fact is the usual route (how to file a complaint with your state insurance department).
- Shop at renewal. No rating law stops you from comparing. See shopping your policy at renewal: how often and how.
- Watch legislation. Several states are revising their rate laws because of affordability pressure; the home insurance rules by state tool points to each state guide.
Key takeaways
- Prior approval means approval first; file-and-use and use-and-file mean the insurer can charge first and be reviewed afterward.
- Many states mix the systems or add flex bands, and recent legislation in Nevada and Oklahoma shows the rules are moving.
- Each approach has a real trade-off: faster, more accurate rates versus a check before increases take effect.
- The regulatory label alone does not predict your premium; losses, reinsurance and rebuilding costs matter more.
- Verify your state's current system, because the NAIC chart used here is dated 2022.