Topstep Maximum Contracts 2026: Per-Account Limits Explained

Topstep maximum contracts caps how much position size you can hold open at once on a Combine or Express Funded Account. The cap is a hard ceiling enforced at order entry, expressed both in mini contracts and micro contracts, and varies by account size: 5 minis on $50K, 10 on $100K, 15 on $150K. One mini equals ten micros, so combinations within a single micro-equivalent total are permitted. The Live Funded Account uses a different mechanic — scaling buying power tied to balance — that does not map to a flat mini count.

For the wider rules picture see the Topstep rules overview; for the drawdown math that pairs with these caps see the drawdown explainer.

The verified contract-cap matrix

Topstep publishes the per-size limits in Help Center article 8284197 and on the topstep.com/topstep-prop product page. As of April 2026, the matrix is:

Trading Combine + Express Funded Account

The same caps carry from the Combine to the matching XFA size after passing. There is no relaxation when you advance, and no tightening either; the contract ceiling stays where it was. For the full Combine spec see the trading combine deep-dive; for XFA mechanics see the express funded account guide.

Live Funded Account (real money tier)

The Live tier does not use a flat mini count. Instead, position sizing scales with tradable buying power:

• Up to $150K starting balance allocated.
• 20% tradable / 80% reserve at start.
• Reserve releases $15K per $6,000 of profit milestone.
• 30 winning Live days of $150+ unlock 100% balance access.

In practice this means a fresh Live Funded $150K trader has ~$30K of active buying power and corresponding margin headroom, not a hard 15-mini ceiling. As the reserve unlocks, sizing room grows. For the full Live tier mechanics see the live funded account guide.

Mini vs micro: the conversion that drives the cap

Most active futures contracts come in two sizes: a mini (the standard retail-tradable size) and a micro (one-tenth the dollar exposure). Topstep enforces caps in micro-equivalents, so understanding the conversion matters before sizing anything.

Common Topstep instruments and their conversions:

The pattern is consistent across CME products: 1 mini = 10 micros in dollar exposure. A trader holding 1 ES has the same per-point P&L as a trader holding 10 MES.

This is the standard CME conversion that Topstep, YRM, Apex, and most futures props all use. If a contract isn't on this list but appears in TopstepX's 60+ futures, the same 10:1 mini:micro ratio applies. For platform mechanics see the TopstepX platform guide.

Practical sizing on a $50K Combine: what 5 minis means

The $50K is the most-purchased Combine size and the size I trade. Cap: 5 minis or 50 micros. Trailing intraday Max Loss Limit: $2,000.

Worked example using ES at $50 per index point:

• 5 ES minis = $250 of P&L per ES point of movement.
• The $2,000 trailing MLL therefore equals 8 ES points of buffer at full size before a hard breach.
• A typical cash-session ES range is 15-30 points; 8 points is one badly timed entry on a high-volatility day.

Working sizing math at smaller positions:

• 1 mini at $50/point: 40 points of buffer against the $2,000 trailing MLL. Generous.
• 2 minis at $100/point: 20 points of buffer. Workable for most setups.
• 3 minis at $150/point: 13 points of buffer. Tighter, requires good entry timing.
• 5 minis at $250/point: 8 points of buffer. Margin for error very thin.

Trading at the 5-mini cap is a deliberate choice for high-conviction entries with hard stops, not a default position size. On the consistency rule (50% best-day ceiling), maxing out the cap on a green session also risks producing an outsized winner that breaks the consistency math even if the trailing MLL holds. See the consistency rule article.

My experience: $50K Combine, 1-2 minis as default

I've traded Topstep for 3+ years on the $50K Combine and pulled around $17,000 in payouts across multiple Combine and XFA cycles. My typical position size: 1-2 ES minis. I rarely max out the 5-mini cap, and when I do it's a single high-conviction setup with a stop already pre-defined.

The math behind that choice mirrors the buffer table above:

• 1 ES mini at $50/point gives 40 points of intraday MLL buffer.
• A standard losing day for me runs 5-10 ES points against position before I cut, leaving 30+ points remaining.
• 2 minis halves the buffer to 20 points. Still livable on most setups.
• 5 minis drops it to 8 points, too tight for the way I size stops.

Most setups I trade need 1-2 minis to express the idea. Sizing up to 5 doesn't make a marginal entry better; it just compresses the room to be wrong. Across three years of $50K Combine trading the discipline of staying at 30-50% of the cap kept the account out of trouble through a lot of noisy sessions. For sizing strategy across instruments see the first-payout strategy and the best strategies guide.

How combinations work within the cap

The micro-equivalent counting opens combo flexibility many traders don't initially exploit. On a $50K Combine with 50 micro-equivalents available, valid combinations include:

• 5 minis + 0 micros
• 4 minis + 10 micros
• 3 minis + 20 micros
• 2 minis + 30 micros
• 1 mini + 40 micros
• 0 minis + 50 micros

Anything that sums to 50 micro-equivalents or fewer is permitted. Across multiple instruments the same logic applies.

On a $100K Combine (100 micro-equivalents):

• 4 ES minis (40 micros) + 60 MNQ (60 micros) = 100
• 5 ES + 5 NQ = 50 + 50 = 100
• 2 GC + 4 CL + 40 MES = 20 + 40 + 40 = 100

The flexibility supports multi-instrument trading without artificial per-symbol caps. The most common miscount: forgetting that two opposite-direction positions in different products both consume cap. Long 4 ES and short 4 NQ counts as 80 micro-equivalents on a $100K account, not zero, even though the dollar deltas partially offset.

What happens when you hit the limit

The platform enforces the cap at order entry. If your current open positions plus the new order would exceed the ceiling, the order is rejected. It does not partial-fill, does not silently pass through, and does not register as a rule breach.

What this looks like in practice:

• No fee for trying.
• No account closure or warning ticket.
• No silent overage that gets reconciled later.
• The order does not transmit to the exchange.

The cap functions as a pre-trade risk check. This is structurally different from drawdown rules, where you can in principle exceed the line intraday and breach. The contract cap cannot be exceeded, only attempted. The implication: if the position exists in your account, it's within the cap by definition. For the trading platforms guide and platform-specific behavior see the Tradovate setup and NinjaTrader setup articles.

Topstep vs YRM vs Apex: contract caps compared

A direct comparison on the $50K and $150K sizes across major futures props:

Topstep sits in the middle of the futures-prop market on contract sizing. The 5-mini cap on $50K is not aggressive (Apex offers double) and not punitive (YRM Instant Prime offers less than half). It's the standard the older futures props converged on. For the full firm comparisons see the Apex vs Topstep article, the Topstep vs YRM article, and the Tradeify vs Topstep comparison.

How the cap interacts with other rules

The contract cap is one of three structural risk controls Topstep stacks on top of each other:

1. Contract cap (this article): hard ceiling on open exposure.
2. Daily Loss Limit: $1K / $2K / $3K, resets 5 PM CT, auto-liquidates at the line. Not a rule violation, but locks the account for the rest of the session.
3. Trailing Max Loss Limit: $2K / $3K / $4.5K, tracks intraday equity high-water mark on the Combine. Breach closes the account.

The three rules interact at the position level. A trader at 5 minis on the $50K hits the trailing MLL faster than a trader at 1 mini, because the per-point exposure is 5x. A trader at the cap also moves through the daily DLL faster on a losing day. Sizing inside the cap is the lever that lets you stretch the drawdown rules across more trading days. For the full drawdown explainer and payout rules see those articles.

When choosing your size matters more than choosing your cap

The contract cap on a Topstep account is a function of size, not a knob you adjust separately. Pick a $50K Combine and you get 5 minis; pick $150K and you get 15. The size you buy is the only lever for changing the cap.

For most traders new to Topstep, the $50K is the right starting Combine even if you can afford the $150K. The cap is plenty for typical retail strategies, the activation fee and monthly are lower, and the smaller balance enforces tighter sizing discipline that translates to the larger account later. For the full size comparison see the account sizes article and the pricing breakdown.

The traders who benefit from the $150K cap are those running multi-instrument portfolios where 5 minis isn't enough headroom for two or three concurrent setups. If you're trading one instrument at a time on a single thesis, the $50K cap is rarely the binding constraint. The trailing MLL is.

The bottom line

Topstep maximum contracts caps position size at 5/10/15 minis on $50K/$100K/$150K Combine and Express Funded Accounts. One mini equals ten micros (standard CME conversion), so combinations within a single micro-equivalent total are allowed. Orders that exceed the cap are rejected at the platform with no breach and no fee. Live Funded accounts use scaling buying power instead of a flat cap, with reserve unlocking per $6,000 profit milestone. For most traders the cap is the ceiling, not the target; sizing 30-50% of the cap leaves enough trailing-MLL buffer to survive normal losing days. Pick your Combine size partly on whether you actually need the extra mini room; the $50K is a sane starting point for nearly all single-instrument strategies. For the broader cluster see the Topstep main review and the Topstep FAQ.

Frequently Asked Questions

What is the maximum number of contracts on a Topstep $50K Combine?

5 minis or 50 micros, or any combination that sums to 50 micro-equivalents or fewer. The Help Center (article 8284197) lists the cap explicitly. One mini equals ten micros in dollar exposure, so 3 minis plus 20 micros is also valid (30 + 20 = 50). The same 5-mini ceiling applies if you advance from this Combine to a $50K Express Funded Account.

Do the contract caps apply to the Express Funded Account too?

Yes. The Express Funded Account inherits the same per-size cap as the Combine that produced it. Pass the $100K Combine, get a $100K XFA, trade up to 10 minis or 100 micros. The Combine and the XFA are functionally the same simulated environment from a contract-cap perspective. Drawdown rules differ between them, but position sizing does not.

How does the Live Funded Account contract limit work?

Live Funded does not use a flat per-size cap. The account is allocated up to $150K starting balance with 20% tradable and 80% reserve. Buying power scales with the tradable portion. Reserve unlocks per $6,000 profit milestone, releasing additional $15K. Position sizing on the live tier flexes with the active balance rather than locking to a fixed mini count.

What's the difference between a mini and a micro futures contract?

A mini is the standard retail-tradable futures contract. A micro is one-tenth the dollar exposure. ES (E-mini S&P 500) is $50 per index point; MES (Micro E-mini S&P 500) is $5 per point. Trading 10 MES gives the same per-point P&L as trading 1 ES. Topstep counts contracts in micro-equivalents internally and enforces the ceiling against the total.

How does Topstep count contracts when I trade multiple instruments simultaneously?

Every open contract converts to its micro-equivalent and adds to a single running total. On a $100K Combine with a 100-micro cap, 4 ES minis (40 micros) plus 6 NQ minis (60 micros) lands at exactly 100. Adding any further contract gets rejected at order entry. The cap covers total open exposure across all symbols at any moment, not one position per instrument.

What happens if I try to place an order that exceeds the cap?

The order is rejected at the platform before it transmits. No silent breach, no fee, no rule violation logged. The trade simply does not fill. Topstep's contract cap behaves as a pre-trade risk check rather than a post-trade audit, so you cannot accidentally cross it. If a position is open in your account, by definition it sits within the cap.

Can I trade full-size (non-mini) contracts at Topstep?

If the instrument is offered on a supported platform (TopstepX, NinjaTrader, Tradovate) and within Topstep's 60+ futures list, yes, but full-size contracts consume cap fast. By standard CME conversion, one full-size equals roughly 50 micro-equivalents. On a $50K Combine that uses the entire 50-micro allowance in a single position. Most Topstep traders stick to minis and micros for finer sizing control.

Which instruments can I trade within the Topstep contract cap?

TopstepX lists 60+ futures across indices (ES, NQ, RTY, YM), energy (CL, NG), metals (GC, SI), currencies (6E, 6B, 6J), agriculture, and fixed income. The contract cap applies regardless of instrument; what varies is each contract's micro-equivalent weight. ES, NQ, RTY all count as 10 micro-equivalents per mini. Sizing within the cap is your choice; the cap itself is product-agnostic.

Does the contract cap interact with the consistency rule?

Indirectly. The 50% consistency rule says your best winning day must stay below 50% of cycle profit. Maxing out the contract cap on one good day produces an outsized winner that risks tripping consistency, even though the contract cap itself was respected. Most Topstep traders deliberately size below the cap to keep daily P&L distribution flatter. See the consistency rule article for the math.

Can I scale into a position past the cap if I close part of it later?

No. The cap is enforced on total open exposure at any moment. If you hold 5 ES minis on a $50K Combine, you've used the full 50-micro ceiling; you'd need to flatten some before adding more. Once you reduce, the platform allows fresh exposure up to the same 50-micro line again. The cap recalculates continuously based on current open contracts.

Are Topstep's contract limits stricter than Apex or YRM?

Topstep matches YRM Starter on the $50K size (5 minis each). Apex is looser at the $50K size (10 minis at the 4.0 program), positioning Apex as the higher-volume option. YRM's Instant Prime $150K is meaningfully tighter than Topstep $150K (7 minis vs 15). Topstep sits in the middle of the market: not the loosest cap, not the tightest. See the Apex vs Topstep comparison for fuller context.

Does the contract cap change as the Combine balance grows?

No. The cap is set by account size at purchase and stays fixed for the life of the account. Growing a $50K Combine to $54,000 doesn't unlock more minis. To trade larger size you'd take a bigger Combine ($100K or $150K) at the matching cap. Each account size has one cap that applies whether you're at starting balance or up several thousand dollars in profit.