Squad Rules Companion
A fast, mobile-friendly way to check league rules in FM — foreign player limits, home-grown quotas, U21/U23 eligibility, substitutes, trialists and transfer windows — all in one tidy view.
How it works
- Select a country and league (or search).
- Skim the panels for quotas, exemptions and caps.
- Check the in-game Rules screen before registration day.
What it covers
Foreign player limits
Clear labels for non-EU quotas, treated-as-EU nations and on-pitch vs registration caps.
Home-grown rules
Nation-trained and club-trained definitions, plus minimums for squads and matchdays.
U21s & substitutes
Know where U21s are exempt, and how many subs you can name and use.
Registration caps
Squad size limits and special allowances — no more deadline-day surprises.
Transfer windows
Summer, winter and restricted windows so you can time signings perfectly.
Compliance at a glance
Build squads that actually qualify to play — before you confirm the deal.
Coverage
UK & Ireland
Premier League, EFL, Scottish Premiership, Cymru Premier, NIFL Premiership.
Europe
LaLiga, Serie A, Bundesliga, Ligue 1, Eredivisie, Süper Lig, Greece, Scandinavia and more.
Worldwide
MLS, Brasileiro, Argentina, Mexico, plus key leagues across Asia and Africa.
We expand coverage and refresh data periodically based on community feedback.
FAQ
Is this the same as FM’s in-game rules?
It mirrors the concepts in a faster, searchable format. Use it to plan; confirm in-game before registration day.
Foreign vs non-EU vs home-grown — what’s the difference?
They’re separate ideas: “foreign” is a league definition, “non-EU” relates to EU/EEA status (incl. treated-as-EU nations), and “home-grown” is about training periods.
Why mention registered and on the pitch?
Some leagues cap registered squads, others cap the matchday squad or the starting XI. We show which applies so you can plan transfers and selection.
Are U21s exempt?
Often yes (auto-eligible or outside the main list), but not everywhere. Check the U21 & substitutes panel for the league you’re playing.
Do trialists count?
Many competitions forbid trialists in competitive matches; some allow them only in friendlies. If allowed or banned, it’s shown on each league card.
How current is the data?
We update periodically. If something’s changed, tell us and we’ll amend it promptly.
Ready to plan your next save?
Open the widget above and start building a compliant, title-winning squad.
Launch the Companion
