Do prop firm and personal accounts need different position sizing?

Usually, because they are rarely the same size and got their sizes for unrelated reasons. Equity-ratio sizing scales each follower by its own equity from a single rule, which suits mismatched accounts; a fixed multiplier applies the same proportion everywhere. Watch the smaller account — once scaled down, a lot can land below the broker's minimum step, leaving no valid order to place.

Why won't my trade copy between a prop firm account and my broker account?

Most often the symbol name. A prop firm's broker is a different broker, so the same pair can be EURUSD on one account and EURUSD.r or EURUSDm on the other, and an order referencing a symbol the follower's broker doesn't list can't be placed. A per-repeater remap translates the name; an allowlist handles instruments one side doesn't offer at all.

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Copying Between Prop Firm and Personal Accounts

Q: Can I copy trades between a prop firm account and my own account?

Mechanically yes — a copier repeats the same order onto whatever account you connect, and the copy logic doesn't know who issued the account. The practical constraint is the server type: Trepeat connects MetaTrader demo-server accounts (evaluations, funded accounts, and your own practice accounts) and refuses live ones at connect time. Whether your programme permits it is set by that programme's rulebook, not by the tool.

The copy mechanics are identical; the context is not — demo servers, rulebooks, account sizes and symbol names all differ between an evaluation and your own account.

7 Aug 2026 · 5 min read

Mechanically there is no difference. A copier repeats the same order onto whatever account you connect, and it has no idea whether that account came from a prop firm or from your own broker. What differs is everything around the order — which kind of server the account lives on, whose rulebook governs it, how large it is, and what its broker calls each instrument. One of those is a hard limit worth stating before you plan anything: Trepeat connects MetaTrader demo-server accounts and refuses live ones at connect time, so a personal live account holding your own capital is not a case it serves.

What stays exactly the same

The copy path doesn't change with the account type. A position opens on the source and opens on each follower; a close or partial close mirrors the same way; the sizing rule applies per follower; the symbol allowlist and any remapping run identically. None of that knows who issued the account. So if you already run several evaluations together — covered in running multiple evaluations at once — adding a personal demo account as one more follower is the same configuration step, not a different tool.

Demo servers are the real dividing line

Prop firm evaluations, and most funded accounts, are issued on MetaTrader demo servers. The balance behaves as a scorecard with real consequences attached, but the server underneath is a demo server. Personal accounts come in both forms: a practice account at your broker, or a live account holding your own money.

That maps directly onto what will connect. An evaluation, a funded account, or your own practice account are all demo-server accounts and connect normally. A live account is refused at connect time rather than half-working. So the useful comparison is rarely "prop firm versus personal" — it is demo server versus demo server, with the personal live account ruled out first.

Only one side comes with a rulebook

An evaluation or funded account arrives with a programme rulebook: loss limits, expectations about how consistent your trading is, and often explicit rules about which tools may place orders on it. Your own broker account is governed by a completely different document — that broker's terms of service. Two documents, written by two parties, that don't say the same things.

The programme rulebook — governs the evaluation or funded account only. It is usually the stricter of the two, and it is the document that decides whether an external tool may place orders on that account at all.
Your broker's terms — govern your own account. Some brokers restrict specific automated behaviour or ask you to disclose that an external tool places orders.

Read both before you connect either. Trepeat neither reads nor enforces them — it places the orders you configured, so staying inside those terms is on you. How to think about it is covered in is copying your own trades allowed. If a clause is ambiguous, ask the provider in writing and keep the reply. This page is not legal advice.

Different balances mean sizing needs deciding first

An evaluation account and a personal account are rarely the same size, and they got their sizes for unrelated reasons. Copying the source lot across unchanged is almost never what you want. There are two sane approaches:

Fixed multiplier — each follower takes a set proportion of the source's size. Predictable, but you re-check it whenever an account's balance moves materially.
Equity ratio — each follower is sized against its own equity relative to the source, so accounts of different sizes take proportionate positions from one rule without you doing the sums.

The place this bites is the smaller account: once scaled down, a lot can land below the broker's minimum step, leaving no valid order to place. Position sizing when copying trades covers both methods and that minimum-lot floor in detail.

Symbol names and contract specs won't line up

A prop firm's broker is simply a different broker, and different brokers describe instruments differently. This is the most common reason a copy between the two sides fails to place at all.

Naming and suffixes — the same pair can be EURUSD on one account and EURUSD.r or EURUSDm on the other. An order referencing a symbol the follower's broker doesn't list can't be placed.
Instrument coverage — indices, metals and crypto vary most. One side may not offer the instrument at all, which a symbol allowlist handles cleanly.
Contract specs — contract size and tick value can differ for what looks like the same instrument, so an identical lot is not always identical exposure.

A per-repeater remap translates the source's symbol into the follower's equivalent; symbol mapping across brokers covers how to work out the mapping.

Choosing which account is the source

The source is the account you actually trade — the one whose orders you want repeated. The link runs one way: followers mirror the source, never the reverse. Two things follow. One action should close the source position and every copy of it, because a tool that only handles entries leaves you the harder half of the problem. And pausing should be per-follower, so you can take one account out of copying — for maintenance, or because its rulebook says so — while the others keep running.

Before you connect either account

Confirm the account is on a demo server; a live account is refused at connect time.
Read the programme rulebook and your broker's terms — they are separate documents.
Decide the sizing rule deliberately, and check what the smallest account rounds to.
Compare symbol names on both sides and set up any remapping before the first trade.
Know how you'll be told when a copy doesn't land, and what the broker reported.

None of this is legal advice, and none of it replaces the paperwork attached to your own accounts. The tool repeats the orders you place; the decisions, and the responsibility for staying inside each account's terms, remain yours.