Configuring Spend Limits on Your Slash Cards
Last updated April 9, 2026
Overview
Slash cards give you granular control over how money is spent. Whether you need to cap an employee's weekly budget, block certain merchant categories, or set transaction size limits, spend controls help you manage risk and stay on budget. This article covers how to configure spending limits at the individual card, card group, and organization level.
Types of Spend Controls
Slash offers several categories of spend controls:
Merchant limits
Merchant limits allow you to create a blacklist or whitelist of specific merchants.
- If you create a merchant "Allow"-list, only transactions at the merchants you specify will go through.
- If you create a merchant "Block"-list, only transactions OUTSIDE the merchants you specify will go through.
Merchant category limits
These work very similar to card limits. You can create allow- or block-lists of merchant categories
Transaction size limits
These let you specify transaction sizes you want to allow. If you set a range like $200 - $300, all transactions smaller or larger than that range will be declined. This is great for subscription payments where you don't want a merchant to charge you a different amount than you agreed to.
Utilization limits
These let you specify limits on how much can be spent on a card over a given period of time (day, week, month, quarter, total)
How to Set Limits on an Individual Card
Step 1: Navigate to Cards
From your Slash homepage, click Cards in the left sidebar.

Step 2: Select a Card and Open the Limits Panel
Click on the card you want to configure. In the options menu, click Limits to view current spend controls. If you don't have any controls or limits configured, you'll be prompted to add them.

Step 3: Add or Edit Card Limits
From the menu, configure the card however you’d like by adding transaction size limits, utilization limits, merchant categories, MCC codes, merchants, and countries. You can assign rules by choosing “Allowed” or “Blocked”; this determines whether the rules permit only specified items or restrict specified items.

Step 5: Save your Changes
Click 'Save Card Limits" to apply the new limits immediately. You'll now see an overview of how that card is abiding by limits in the info panel.

Additional Information
- Reset timing: Daily limits reset at midnight. Weekly limits reset Monday. Monthly limits reset on the 1st. Yearly limits reset January 1st. Total (collective) limits never reset.
- Timezone: Resets occur at midnight in your organization's configured timezone (defaults to UTC).
- MCCs: Merchant Category Codes are 4-digit industry codes. Common examples include 5812 (Restaurants), 4111 (Transportation), and 5411 (Grocery Stores).
Need More Help?
If a transaction is unexpectedly declined, first check that it doesn't exceed any of the card's limits, group limits, or organization-wide controls. You can view recent decline reasons in the card's transaction history.
For additional assistance, contact Slash Support by emailing support@slash.com, or use the in-app chat in your Slash dashboard.
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