Marriage License Requirements in Missouri
Missouri raised its minimum marriage age to 18 with no exceptions, effective August 28, 2025, closing the state’s previous parental-consent pathway for minors. Requirements below apply statewide; fees and application methods are set by each county recorder of deeds (the independent City of St. Louis has its own Recorder).
| Minimum age to marry | 18, with no exceptions — Missouri eliminated marriage under 18, including parental-consent and judicial pathways, effective August 28, 2025. |
|---|---|
| Waiting period | None — a license can be used the same day it is issued. |
| License validity | 30 days from the date of issuance. |
| Blood test required | No |
| Documents you’ll need | Valid photo ID for both applicants. |
What a Missouri marriage license typically costs
In St. Louis County, the county we’ve researched so far, the fee is $50, which includes a keepsake copy of the license.
Counties we cover in Missouri
Requirements above are set by Missouri state law and apply the same way in every county. The fee, hours, and exact application process are set locally — select your county above for those specifics.
Frequently asked questions
How much does a Missouri marriage license cost?
$50 in St. Louis County, the county we’ve verified so far, which includes a keepsake copy of the license. Check your specific county’s guide to confirm.
Is there a waiting period in Missouri?
No. A license can be used the same day it’s issued.
Is a blood test required to get married in Missouri?
No. Missouri does not require a blood test or medical exam.
See how Missouri’s fees compare to other states → Getting married in a different county than you live in →