Fishing Regulations in Montana
Season dates, bag limits, license fees, and tips — updated 2026-03-05
Always verify current regulations before fishing. Regulations change frequently. Visit the official Montana Fish, Wildlife & Parks website for the most up-to-date rules, emergency closures, and special regulations.
🎫 Fishing License Fees
2025–2026Resident License
Non-Resident License
Senior Discount
Under 17
2025-2026 guides indicate separate Conservation License and AIS fees.
🐟 Season Dates & Bag Limits
| Species | Season | Bag Limit | Size Limit | Notes |
|---|---|---|---|---|
| Trout (Western district streams) | Third Saturday in May – November 30 | 5/day | Size varies by district/water | District and water-specific rules control. See FWP. Plan by waterbody in Montana, since local chapters and seasonal access details can differ significantly. |
| Trout (lakes/reservoirs) | Year-round (many waters) – Varies | 5/day | Varies | Check by waterbody with FWP. Plan by waterbody in Montana, since local chapters and seasonal access details can differ significantly. |
| Walleye | Year-round on many eastern waters – Varies | 5/day | 15 inches on some waters | See FWP regulations. Plan by waterbody in Montana, since local chapters and seasonal access details can differ significantly. |
| Northern Pike | Year-round on many waters – Varies | 10/day | Varies | See FWP. Plan by waterbody in Montana, since local chapters and seasonal access details can differ significantly. |
| Paddlefish | Tag season only – Varies | 1/day | Tag-only fishery | Special tag and draw rules apply. Plan by waterbody in Montana, since local chapters and seasonal access details can differ significantly. |
Source: Montana Fish, Wildlife & Parks (fwp.mt.gov). Last updated: 2026-03-05. Regulations may have changed — always verify with the official agency.
About Fishing in Montana
Montana offers varied freshwater fishing across rivers, reservoirs, and local waters, with consistent opportunity for Rainbow Trout, Brown Trout, Cutthroat Trout, Walleye, Pike. Success usually comes from matching your plan to each waterbody instead of relying on one statewide pattern. Use Montana Fish, Wildlife & Parks (fwp.mt.gov) materials alongside current conditions to choose access points, launch timing, and presentations that fit the day. Pre-spawn and spawn periods often provide the most consistent action for major game species. Fish deeper structure, current breaks, and dawn/dusk windows as water temperatures rise. Cooling water triggers feeding and can produce excellent mixed-species days. Where legal and safe, slower presentations and precise location are key. License costs listed here include $21 season fishing + conservation/AIS fees and $100 season fishing + conservation/AIS fees, so confirm eligibility and carry proof while on the water. Build a simple pre-trip checklist covering regulations, weather shifts, and backup spots so you can adjust quickly and keep more time with lines in the water.
Best Times to Fish in Montana
🌱 Spring
Pre-spawn and spawn periods often provide the most consistent action for major game species.
☀️ Summer
Fish deeper structure, current breaks, and dawn/dusk windows as water temperatures rise.
🍂 Fall
Cooling water triggers feeding and can produce excellent mixed-species days.
❄️ Winter
Where legal and safe, slower presentations and precise location are key.
🎣 Expert Fishing Tips for Montana
- Check the official Montana regulations for your exact waterbody before fishing; special exceptions are common.
- Focus on low-light windows (first and last 2 hours of daylight) for better catch rates.
- Use agency stocking reports, flow data, and local ramp intel to choose locations each trip.
- Keep a digital copy of your license and regulations on your phone for field checks.
🏛️ Official Wildlife Agency
🗺️ Nearby States (West)
Also available: Hunting Regulations in Montana — deer, turkey, waterfowl season dates, bag limits, and license info.