I've helped a lot of traders move from MT4 to MT5, and the biggest misconception is that it's a simple file transfer. It isn't. MT4 and MT5 are fundamentally different platforms, with incompatible file formats, different programming languages, and separate account systems. That said, the process is straightforward once you know what carries over, what doesn't, and the order to do things in. This guide walks through every step, including the decisions you'll need to make before committing to the switch.

MetaQuotes, the company behind both platforms, stopped actively developing MT4 years ago and has been steering brokers and developers toward MT5 ever since. That doesn't mean MT4 is disappearing overnight; plenty of brokers still support it fully, and a huge share of retail EAs are still written in MQL4 first. But the direction of travel is clear, and if you're evaluating a long-term automated setup, it's worth understanding the migration path even if you're not ready to move yet.

Should You Migrate to MT5?

Before you start, it's worth checking whether switching platforms actually makes sense for your setup. Here's when migration is worth it, and when it isn't:

Migrate to MT5 If

• Your broker is phasing out MT4 support
• You need better backtesting with real tick data and multi-currency testing
• You want access to more timeframes (21 vs 9 on MT4)
• Your EA provider recommends MT5 for better performance
• You trade stocks or other asset classes alongside forex (MT5 supports more)

Stay on MT4 If

• Your EA only has an MT4 version with no MT5 alternative
• Your current setup is profitable and stable
• Your broker has strong MT4 support with no plans to discontinue
• You rely on MT4-specific indicators that have no MT5 versions

What the Switch Actually Costs You in Time and Effort

There's no license fee to move from MT4 to MT5 itself, both platforms are free to download and use, but the switch isn't free in the sense that matters most: time. Budget somewhere between two and four weeks from the day you decide to migrate to the day you're comfortable running your EA live on MT5 with no MT4 backup running alongside it. Most of that time isn't spent clicking through installers; it's spent watching the demo account trade and comparing results against your live MT4 account. Traders who skip that comparison window and jump straight to live MT5 trading are the ones who end up back on this page a month later asking why their results look different from what they were used to.

If your EA provider charges separately for an MT5 license, factor that into the decision too. Some providers bundle both versions under one purchase; others treat MT5 as a second product. It's worth asking directly before you commit time to setting up a new account, only to find out the EA you rely on isn't included.

Key Platform Differences

Knowing these differences upfront helps avoid surprises during the switch:

Netting vs. Hedging: Why It Matters for EA Traders

One difference that trips people up more than any other is position accounting. MT4 only ever operates in hedging mode, meaning you can hold a buy and a sell on the same symbol at the same time, and each trade is tracked as its own separate ticket. MT5 supports both hedging and netting. In netting mode, opposing trades on the same symbol are combined into a single net position instead of being tracked individually, which is closer to how US-regulated brokers and futures accounts typically operate.

Most retail gold EAs, including ones built for grid or martingale-style recovery logic, are written with hedging accounting in mind and expect to manage each trade ticket independently. If you open your MT5 account in netting mode by mistake, an EA that expects hedging behavior can end up combining trades in ways it wasn't designed for, which throws off its own internal trade tracking. Check with your EA provider which mode it expects, and select that mode when you open your MT5 account, since switching between netting and hedging later usually means opening a new account rather than flipping a setting.

The two platforms also handle order execution differently. MT5 gives brokers three order filling policies to choose from: Fill or Kill, Immediate or Cancel, and Return, which affect how partial fills are handled when liquidity is thin. MT4 doesn't expose this distinction to the same degree. It rarely changes day-to-day trading, but it's one more reason a straight settings copy-paste between platforms doesn't always produce identical behavior, and it's worth reading through MQL5's documentation on order types if your EA does anything beyond simple market orders.

Step 1: Check EA Availability for MT5

The first step, and arguably the most important one, is confirming your EA actually has an MT5 version:

1. Contact your EA provider and ask if an MT5 version (.ex5) is available
2. If available, confirm it has the same features and strategy as the MT4 version
3. Ask about license compatibility: some providers give free MT5 versions to existing MT4 customers, others charge separately
4. Check for any known differences in performance between the MT4 and MT5 versions

If your EA doesn't have an MT5 version, your options are limited. You can stay on MT4, find a similar EA that supports MT5, or hire a developer to port it to MQL5, which tends to be expensive and slow.

Porting an EA from MQL4 to MQL5 isn't a simple recompile. MQL5 is fully object-oriented, uses a different order-handling model (positions instead of individual tickets in netting mode), and has stricter type checking than MQL4. A straightforward EA might take a competent developer a few days to port; anything with custom indicators, complex money management, or multi-symbol logic can take weeks and cost several hundred dollars or more, since the developer has to rewrite the trading logic rather than translate it line by line. If cost is a factor, browsing the MQL5 Market for an established MT5 alternative in the same category is often faster and cheaper than a custom port.

Step 2: Open an MT5 Account with Your Broker

MT4 and MT5 run on separate account systems, so you'll need a new account:

1. Log in to your broker's client portal
2. Look for "Open New Account" or "Additional Accounts"
3. Select MetaTrader 5 as the platform
4. Choose your account type (Standard, ECN, etc.)
5. Select Hedging mode if available (most EAs require this)
6. Fund the new account or transfer funds from your MT4 account

Before you fund anything, confirm the broker offering the MT5 account is actually regulated in a jurisdiction you recognize, and not just a rebranded offshore entity riding on your existing broker's name. Migration is exactly the moment scammers try to intercept traders, since "we're upgrading you to MT5, click here to verify your account" is a common phishing pretext. Legitimate brokers never ask for your password or a remote-access session to "help" you migrate. If you're ever unsure whether a broker or a migration offer is legitimate, the FTC's consumer protection resources and the CFTC both publish guidance on spotting fraudulent trading platforms and unregistered brokers.

Step 3: Install MetaTrader 5

1. Download MT5 from your broker's website, not the generic MetaQuotes download page, since your broker's version connects to their own servers
2. Install MT5 alongside MT4; the two don't conflict with each other
3. Log in with your new MT5 account credentials
4. Verify XAUUSD (or your trading symbol) is available in Market Watch

If you run your EA on a VPS rather than a home computer, most providers let you install MT5 on the same virtual machine as your existing MT4 instance, as long as it has enough spare RAM and CPU headroom to run both terminals without slowing either one down. Running two live terminals at once is heavier than running one, so check your VPS specs before adding a second install rather than after your MT4 EA starts lagging.

Step 4: Install Your MT5 EA

Follow the standard MT5 EA installation process:

1. In MT5, go to File → Open Data Folder
2. Navigate to MQL5 → Experts
3. Copy the .ex5 EA file into this folder
4. Return to MT5 and right-click Navigator → Refresh
5. The EA should appear under Expert Advisors

Two settings catch out first-time MT5 users specifically. First, the global Algo Trading button in the MT5 toolbar has to be enabled, separately from the per-chart AutoTrading toggle carried over from MT4 habits; if it's off, no EA on any chart will trade regardless of its own settings. Second, if your EA needs to fetch external data or call a DLL, you'll need to allow that explicitly under Tools → Options → Expert Advisors, since MT5's default permissions are stricter than MT4's. For detailed MT5 installation instructions, see our complete MT5 EA installation guide.

Step 5: Transfer Your Settings

EA settings don't carry over automatically between platforms, so you'll need to configure them by hand:

1. Open your MT4 EA properties and note down all settings in the Inputs tab
2. If you saved a .set preset file on MT4, you cannot load it directly into MT5, since the format may differ
3. Attach the MT5 EA to a chart and manually enter each setting
4. Pay special attention to these settings that often differ between versions:
   • Symbol name: May have different suffix on MT5 (e.g., XAUUSD vs XAUUSD.mt5)
   • Spread units: Verify whether spread is in points or pips
   • Lot increments: MT5 may support smaller lot steps
5. Save a new .set preset file on MT5 once settings are confirmed

The symbol suffix issue deserves extra attention because it's the single most common cause of "my EA won't trade" reports right after a migration. Brokers frequently append a different suffix on MT5 than they use on MT4 for the same instrument, so a strategy hardcoded to look for "XAUUSD" on MT4 can fail silently on an MT5 account where the symbol is listed as "XAUUSD.m" or "XAUUSD+". Check your Market Watch symbol list on MT5 before attaching the EA, and update the symbol field in the EA's inputs if it doesn't auto-detect the correct name. It's worth also double-checking point value and digit settings, since some brokers quote gold with a different number of decimal places on MT5 than on MT4, which changes how stop-loss and take-profit distances in points translate into actual price.

Step 6: Test on Demo Before Going Live

This step is non-negotiable. Always validate on a demo account first:

1. Open an MT5 demo account with your broker
2. Install and configure the EA with your planned live settings
3. Run both MT4 (live) and MT5 (demo) simultaneously for 1-2 weeks
4. Compare trade entries, exits, and overall performance
5. Verify magic numbers, trade comments, and order management work correctly
6. Only switch your live trading to MT5 once demo results are satisfactory

When you compare the two accounts, look past just "did it trade." Check that entry and exit prices land within a normal spread of each other given the two accounts aren't on identical feeds, that trade frequency is roughly in line between platforms, and that stop-loss and take-profit levels are actually being respected rather than silently ignored due to a settings mismatch. Two weeks is a reasonable minimum window, but if gold has been unusually quiet or unusually volatile during that stretch, it's worth extending the comparison a bit longer before drawing conclusions, since a short sample during an atypical market period can be misleading either way.

What Transfers and What Does Not

Notice how little in that table transfers automatically. That's by design, not an oversight: MT4 and MT5 are separate products with separate databases, and MetaQuotes never built a one-click migration path between them because the underlying data structures aren't compatible. Budget the manual re-entry time into your migration plan rather than assuming a setting will "just be there" when you open MT5.

Common Migration Mistakes to Avoid

Most migration problems come down to a handful of repeatable mistakes. Watching for these ahead of time saves a lot of troubleshooting later:

• Closing the MT4 account too early. Traders sometimes close out their MT4 setup the moment MT5 is installed, before confirming it actually works the same way. Keep MT4 running until MT5 has proven itself on demo.
• Assuming the .set file loads directly. MT4 and MT5 preset files aren't guaranteed to be interchangeable even though they share the .set extension. Always verify each input value manually after loading one across platforms.
• Not checking the symbol suffix. As covered above, this is the number one reason an EA looks installed correctly but never places a trade.
• Choosing the wrong account mode. Opening a netting account when your EA expects hedging (or vice versa) causes trade management behavior that doesn't match what you're used to.
• Skipping the demo comparison window. Going live on MT5 immediately, without a side-by-side comparison against MT4, means you have no baseline to catch a misconfiguration before it costs you.
• Forgetting to re-enable Algo Trading. A fresh MT5 install defaults to Algo Trading being off; an EA that's attached but not trading is often just waiting on this toggle.

Troubleshooting Common MT5 Migration Issues

If something isn't behaving as expected after the switch, these are the first places to look:

Most of these fixes take a couple of minutes once you know where to look, but they're easy to miss the first time through since MT5 fails silently in several of these scenarios rather than throwing an obvious error.

Migration Timeline

Here's the timeline we recommend for a smooth, risk-free migration:

• Week 1: Install MT5, set up demo account, configure EA
• Week 2-3: Run MT5 demo alongside MT4 live, compare performance
• Week 4: If results match, fund MT5 account and start live trading with reduced risk
• Week 5+: Gradually increase MT5 risk while reducing MT4 activity

For proper risk configuration during transition, see our lot size guide for $1,000 accounts.

Is Migrating Worth It? Weighing the Trade-offs

For most traders running a single EA on a single broker, MT5's advantages, faster backtesting, more timeframes, netting-account support, are real but not urgent. If your broker still supports MT4 fully and your EA has no MT5 version, there's no rush. Where migration earns its keep is when your broker starts winding down MT4 support, when you want to diversify into instruments MT5 handles better (stocks, futures, and broader multi-asset access alongside forex and metals), or when your EA provider has already moved development attention to the MT5 build and MT4 updates start lagging behind.

The reverse is also worth saying plainly: switching platforms doesn't change what an EA can or can't do for you. A strategy that loses money on MT4 will lose money on MT5 too, since the platform is just the execution environment, not the strategy itself. Treat migration as a technical upgrade, not a performance fix.