How long do you need an SR-22?
The three-year figure everyone quotes is the default, not the rule. Kansas requires just 1 year; Missouri and Texas run 2; Alaska stretches to 5, 10, or even 20 years for repeat DUIs. Nine states have no SR-22 at all. And in nearly every state, a single lapse restarts the clock from zero.
"Three years" is the answer you'll see everywhere, and it's the most common single figure — but treating it as universal will leave you either over- or under-prepared depending on your state.
Duration by state
The table below reflects each state's standard SR-22 requirement. A handful of states extend the duration further for repeat offenses — Alaska in particular runs far longer than anywhere else in the country for a second or third DUI.
When the clock starts matters as much as how long it runs
This is the detail that trips up more drivers than the raw duration does. Some states count the requirement from your conviction date; others count from your reinstatement date — and if your suspension ran for months before you got your license back, that's a real difference in your actual end date. California, South Carolina, and Nevada all use the reinstatement-date rule. Nevada's DMV is explicit about the consequence: filing an SR-22 before you're actually reinstated doesn't count toward the requirement at all — the clock simply hasn't started yet, no matter how early you buy the policy.
Check which rule your state uses before you calculate your own end date from memory.
The lapse rule that overrides everything else
Whichever period applies, it only counts time you're continuously insured. If your policy lapses — even for a single day — your insurer is required to notify the state, your license can be re-suspended, and in nearly every state we've verified, the required period restarts from zero, not a partial extension. Nevada's DMV confirms this directly: a lapse "restarts the three-year period." One driver who paid a premium a single day late asked, in genuine alarm, whether that meant a full restart — in most states, the honest answer is yes.
South Carolina is the one state in our research where this is applied inconsistently enough that its own state page recommends confirming directly with the SCDMV rather than assuming either outcome. Everywhere else, treat any coverage gap as a full restart.
One thing that does not restart the clock: switching insurers mid-term. The state sets the length of your requirement, not your carrier, so moving to a new company is fine as long as there's no actual gap in coverage between the old policy ending and the new one starting.
If your state doesn't use SR-22 at all
Nine states — Delaware, Kentucky, Massachusetts, Maryland, North Carolina, New Jersey, New Mexico, New York, and Pennsylvania — have no SR-22 system whatsoever, so there's no duration to track. A tenth, Minnesota, uses its own certificate rather than an SR-22, held for a comparatively short one calendar year. If you're in one of these states but another state has ordered an SR-22 from you, that state's duration rule applies, not your home state's — see the individual state pages for specifics.
When you can remove it
Once you've completed your state's full period without a gap, confirm with the DMV directly that the requirement is satisfied before you touch anything — don't assume it clears automatically just because the calendar math works out. See how to remove an SR-22 for the full process, and what happens if your SR-22 lapses if you're worried you've already broken continuity.
Why the duration varies so much by state
It's tempting to assume every state landed on the same three-year figure for the same reason, but the underlying logic differs. Some states tie duration directly to the severity of the violation — a first minor offense gets a shorter window, a DUI or repeat offense gets a longer one. Others apply a flat duration regardless of the specific violation, and instead vary the fees or conditions attached to reinstatement. Alaska's escalating structure for repeat DUIs is the clearest example of duration itself doing the punishing, rather than cost alone — five years for a first offense stacking up to twenty for a third puts it in a different category from nearly every other state in the country.
A practical way to think about your own timeline
Rather than memorizing a national average, treat your own duration as a function of three specific facts: your state's standard requirement, whether your violation triggers an extended period, and which clock-start rule your state uses. Once you have those three answers — available from your state's DMV or your reinstatement paperwork — you can calculate your actual end date with real confidence, rather than assuming "three years" and discovering months later that you were wrong in either direction.
And build in a buffer for uncertainty. If your state's rule is genuinely ambiguous, or a DMV representative gives you an answer that doesn't match what you've read elsewhere, treat the more conservative estimate as the one to plan around until you get written confirmation. It's a far smaller inconvenience to carry the filing a few weeks longer than necessary than to drop it early and trigger a restart that adds months or years back onto a requirement you thought you'd already finished.
| Duration | States | Notes |
|---|---|---|
| 1 year | Kansas | Shortest standard requirement in the country |
| 1 year (non-SR-22 certificate) | Minnesota | Not an SR-22 — Minnesota's own insurance certificate |
| 2 years | Missouri, Texas | Texas extends to 3 years for a second DWI |
| 3 years (the default) | Most other SR-22 states | The figure most commonly cited nationally |
| 5–20 years | Alaska | Scales with DUI repeat offenses — the longest in the U.S. |
| No SR-22 system | DE, KY, MA, MD, NC, NJ, NM, NY, PA | 9 states use a different mechanism entirely |
Pick your state and violation — the calculator shows a sourced monthly estimate in about a minute. No personal info needed.