Tiers

Synthetix uses a volume-based tier system. A subaccount's tier determines its trading fee rates, open order caps, and the number of subaccounts the wallet can create.

Tier table

Tier	Min 14-day Volume	Maker fee	Taker fee	Max orders per market	Max total open orders	Max subaccounts
Regular User	$0	0.020%	0.050%	10	50	1
Tier 1	$100,000	0.020%	0.050%	15	75	5
Tier 2	$5,000,000	0.016%	0.040%	25	150	10
Tier 3	$25,000,000	0.014%	0.035%	50	300	10
Tier 4	$100,000,000	0.012%	0.032%	100	500	10
Tier 5	$500,000,000	0.008%	0.025%	150	700	10
Tier 6	$2,000,000,000	0.003%	0.020%	200	1,000	10
Tier 7	$5,000,000,000	0.000%	0.017%	200	1,000	10

Volume is measured in notional USDT traded across all markets in a rolling 14-day window. Tier assignments update automatically when the volume threshold is crossed — no API action is required.

Open order limits

Two separate caps apply to each subaccount simultaneously:

max_orders_per_market — maximum open orders on a single market symbol
max_total_orders — maximum open orders across all markets combined

What counts toward the limit:

All resting limit orders
Conditional orders (take-profit, stop-loss) — each counts as one slot

What does not count:

Reduce-only orders
Liquidation orders placed by the engine

Exceeding either cap causes placeOrders to return an error for the affected order:

Error code	Meaning
`MAX_TOTAL_ORDERS`	Global cap across all markets reached
`MAX_ORDERS_PER_MARKET`	Per-market cap reached

Both codes are non-retryable. Resolution: cancel open orders to free slots, or wait for the account's tier to increase. See Error Handling.

Limits update live

When a subaccount's tier changes (due to volume crossing a threshold or a manual tier assignment), the new limits take effect immediately for subsequent orders. Existing open orders are not cancelled.

Checking current tier

The Get Subaccount endpoint returns the subaccount's current feeRates object, which includes the tier name and current maker/taker rates.