Your Broker Is Killing MT4

Over 60% of retail traders still run strategies on MT4. Their brokers just told them to migrate to MT5. No choice. No timeline extension. By 2025, MT4 accounts will be closed.

Brokers didn't make this call out of kindness. MT4 is 19 years old. It was built for a different internet, different hardware, different market structure. MT5 is newer—but it's not backward compatible. Your EAs don't just "work" on MT5. They break.

If you have custom Expert Advisors, legacy indicators, or automated strategies running on MT4, this matters today, not next year.

What Actually Breaks When You Migrate

MT5 changed the fundamental architecture. It's not a patch. It's a rewrite.

Here's the thing: this isn't fixable with a quick Google. Every EA and indicator needs to be either rewritten or converted by someone who understands both platforms.

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The Cost of Waiting (In Missed Trades)

Most traders think migration is just "uploading to the new platform." They're wrong.

Let's say your EA has been running for 2 years on MT4. It's profitable. You're comfortable with it. Your broker sends the migration notice, and you think "I'll get to it eventually."

Here's what actually happens:

  1. You miss the 90-day warning period and scramble at the deadline.
  2. You manually recreate your EA on MT5 (if you know how to code) or hire a cheap developer who doesn't understand the differences.
  3. The EA doesn't perform the same. Parameters are different. Behavior is different. You spend weeks troubleshooting.
  4. You finally get it working—two weeks after your original broker closes the account. You had to switch brokers and restart your track record.
  5. Your account is now on a new broker with a migrated EA that never lived through a full market cycle on that new platform.

The traders who actually profit through migrations are the ones who start conversion 6 months early, test on live data for 90 days, and only then switch brokers.

The Migration Framework That Works

Successful migration follows this exact sequence:

  1. Convert the EA or indicator (rewrite or port the code from MT4 to MT5 syntax)
  2. Backtest on the new platform (retune parameters for MT5's different engine)
  3. Paper trade on the new broker (run it on a demo account for at least 30 days)
  4. Live test on micro lots (run the first 2 weeks at 25% position size to catch unexpected behavior)
  5. Switch brokers only after you have 90+ days of live data (prove the strategy actually works on MT5, not just in backtests)

This takes 4-6 months. Not weeks.

Custom MT4 → MT5 Conversion (It's Faster Than You Think)

Here's what Alorny does for traders in forced-migration situations:

Most developers take weeks. We deliver a working, tested conversion in 5-7 days. Full backtest report included.

What Happens If You Do Nothing

Your broker closes your MT4 account. Your EA stops running. Your positions either get closed by the broker (market loss) or forcibly migrated to MT5 (where your unmigrated EA can't manage them).

If your EA was generating even $50/week in profit, waiting costs you $2,600/year in lost compounding—and that's assuming zero account blowups during the chaos.

The traders who migrate early don't just avoid the panic. They also know their strategy works on MT5 before everyone else is forced to discover theirs doesn't.

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Your Next Move

If you have EAs or indicators running on MT4 right now:

This week: Check your broker's migration timeline. Most have given 6-12 month notices. Write down exactly what you're running (EA name, indicators, account type, profit target).

Next week: Get a conversion quote. Alorny can give you a fixed price and timeline based on code complexity—usually within 24 hours. The EA that takes 3 weeks somewhere else takes 3-5 days here.

Month 1: Get converted. Test on a demo account.

Month 2-4: Paper trade the converted version on your target broker. Collect 90 days of data.

Month 5: Go live on the new broker with a strategy you already know works on MT5.

The traders who get to month 5 on schedule are the ones who start in month 1. Everyone else is firefighting in month 6 when their broker pulls the plug.

Key Takeaways: