By MyAutoResource Editorial Team · Reviewed by Steven Sun · 7 min read · Updated August 13, 2026
- Auto insurance rates change through a state-approved filing process tied to your policy’s renewal date, not a seasonal calendar tied to weather or holiday traffic.
- The national combined average premium per insured vehicle reached $1,438 in 2023, a real 14.42% increase from 2022, according to the NAIC.
- On an average $27,070 used-car loan at 11.43% APR, the combined monthly cost of loan payment plus average insurance premium runs about $662.49, not just the $542.66 loan payment alone.
- The Federal Reserve’s G.19 report put the average bank rate on a 60-month new-car loan at 7.14% in its Q2 2026 reading, a useful benchmark for whether your financing quote is competitive.
Marcus is six weeks from his auto loan being paid off and his insurance renewal lands the same month. He has heard that insurance rates swing with the seasons, cheaper in spring, pricier around the holidays, and he is trying to time his shopping around that pattern. The pattern he is chasing is not really how rates move. What actually moved is the national average premium itself, up 14.42% in a single year, and that number matters far more to his budget than any month he happens to renew in.
The “Seasonal” Insurance Myth, and What Actually Changes Rates
Auto insurance premiums are not adjusted month to month based on weather or holiday traffic the way a lot of drivers assume. Rate changes go through a formal, state-regulated filing process. An insurer proposes a new rate table, a state insurance department reviews it, and the new rates apply to policies as they renew or get written, not on a seasonal calendar. That process can take weeks or months to clear. Two people renewing in the same calendar month can be looking at completely different rate environments depending on when their state last approved a filing. The real driver of what you pay is not the season, it is whether your insurer has an approved rate change pending in your state. Your own driving record, a change of address, or adding or removing a vehicle from your policy will move your personal rate far more reliably than the month on the calendar.
The Number That Actually Moved: A 14.42% Jump
While the seasonal story is mostly a myth, a real and significant shift did happen in national auto insurance costs. The National Association of Insurance Commissioners, the group representing state insurance regulators, reported that the national combined average premium per issued vehicle reached $1,438, a 14.42% increase from 2022 to 2023. Zoom out further and the trend is even sharper. Average expense per insured vehicle rose 19.24% from 2019 to 2023. That kind of multi-year increase does far more to your total cost of owning a car than any month-to-month seasonal swing ever could. If you are timing a renewal or a new policy around your car loan, this is the number that should get your attention, not a calendar month. A driver who last shopped their policy in 2021 and simply auto-renewed since then has likely absorbed most of that increase without ever comparing it to a current quote.
Why This Matters More While You Are Financing
Insurance and your loan payment come out of the same monthly budget, so a 14% jump in premiums lands on top of whatever you are already paying to your lender. Experian’s Q1 2026 data puts the average used-car loan at $542.66 a month on a $27,070 balance at the overall average rate of 11.43%. Add a national average premium of $1,438 a year, or about $119.83 a month, and the combined real monthly cost of that car is closer to $662.49, not just the loan payment on its own. That combined figure is what actually determines whether you can afford the car, and it is the number worth tracking over time, not a seasonal pattern that mostly does not exist. For a new-car buyer, the math shifts again. Experian’s average new-car loan runs $43,925 over roughly 69 months, which means the insurance side of the budget carries even more weight relative to a smaller used-car loan payment.
| Metric | Value | Source |
|---|---|---|
| National average premium per insured vehicle (2023) | $1,438 | NAIC Auto Insurance Database Report |
| Increase, 2022 to 2023 | 14.42% | NAIC |
| Increase in average expense per insured vehicle, 2019 to 2023 | 19.24% | NAIC |
| New-car finance rate, 60-month term (Q2 2026, Fed reading) | 7.14% | Federal Reserve G.19 |
Common Seasonal Claims, Checked Against Real Data
You may have read that rates rise in winter from holiday-travel claims, stabilize in spring, climb again in summer from more miles driven, then get discounted at year-end to win new customers. That narrative sounds plausible, and pieces of it may hold true for an individual insurer’s internal claims data in a given year. But it is not something a driver can verify or rely on. None of the primary regulatory sources this article draws from, the NAIC, the Federal Reserve, or state insurance departments, publish a standardized month-by-month seasonal rate calendar you can plan around. What they do publish is the annual trend that actually matters: a national average premium that rose 14.42% in one year. Plan around documented numbers, not a seasonal story that cannot be checked against a real source.
What Actually Should Drive Your Timing
Instead of chasing a season, time your insurance shopping around events that produce real rate changes. Those events include your policy’s renewal date, a move to a new state or zip code, a change in the vehicle you are financing, or a documented rate filing your insurer has announced. Most policies renew every six months, and that renewal is the point where a new approved rate actually applies to you, not a seasonal shift in weather or traffic. It is also worth checking the bank-rate floor on the financing side. The Federal Reserve’s G.19 report put the average bank rate on a 60-month new-car loan at 7.14% in its Q2 2026 reading. If your dealer or lender quote sits well above that floor and your credit is strong, that gap is the real signal to shop your financing before you sign, not the calendar.
Building a Real Budget Around Both Numbers
Pull your current premium and your loan statement side by side before your next renewal. Compare your premium against the NAIC’s national average to see whether you are paying above or below the typical rate for your coverage level. If you are financing, add your monthly loan payment to your monthly insurance cost and treat that combined number as your real car payment, not the loan figure alone. Shop your insurance at renewal, not by season, and shop your loan rate against the Fed’s published bank-rate benchmark rather than assuming the rate you were first quoted is the best one available to you. Set a recurring reminder tied to your actual renewal date, not a season, so the comparison happens automatically instead of depending on you remembering to do it.
Frequently asked questions
Do auto insurance rates really change with the seasons?
Not in the way most people assume. Rate changes come from a formal, state-approved filing process, not a seasonal calendar, so two drivers renewing in the same month can see very different rates depending on their insurer’s filing status in their state.
How much have average auto insurance premiums actually increased?
The national combined average premium per insured vehicle reached $1,438 in 2023, a 14.42% increase from 2022, according to the NAIC’s Auto Insurance Database Report.
When is the best time to shop for a new insurance rate?
Shop around your policy’s renewal date, a move, or a change in vehicle, since those are the events that actually trigger a new rate. Most policies renew every six months, and that renewal point is when a newly approved rate applies to you.
How does my insurance cost affect what I can afford to finance?
Add your monthly premium to your monthly loan payment to get your real total car cost. On an average used-car loan of $542.66 a month plus a national average premium of about $119.83 a month, the combined cost runs closer to $662.49.
Should I compare my loan rate to a published benchmark?
Yes. The Federal Reserve’s G.19 report tracks the average bank rate on new-car loans, which stood at 7.14% for a 60-month term in its Q2 2026 reading. If your quote sits well above that and your credit is strong, it is worth shopping further.
