The mandatory waiting period and a realistic timeline for a Montana divorce. Updated for 2026.
Last reviewed July 2026 · General guidance, not legal advice
The waiting period is the legal floor. Here's how it usually plays out:
In Montana, the waiting period runs 20 days after service. Keeping things uncontested is by far the biggest lever on how long — and how expensively — your divorce goes.
States begin the waiting period at different points — some from the date of filing, some from the date the other spouse is served, and a few require a separation before filing at all. For Montana: 20 days after service.
Montana requires a minimum wait of 20 days — 20 days after service. In practice, an uncontested Montana divorce takes roughly 1–3 months; a contested one can take many months to over a year.
The waiting period in Montana is 20 days: 20 days after service. It's the minimum time that must pass before a judge can finalize the divorce.
The waiting period itself generally can't be shortened, but you can shave months off the real timeline by keeping it uncontested — agreeing on property, support, and parenting up front so there's nothing for the court to decide. Filing complete, correct paperwork the first time also avoids delays.
Disputes are the main driver — disagreements over asset division, support, or custody trigger negotiation, discovery, and hearings that run on the court's schedule. Complex finances (a business, pensions) and a crowded court docket add time too.