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Setting up approval rules for ACH debits

Learn how to set up ACH debit approval rules in Slash to control who can pull funds from your account and under what conditions.

Aryan Pour avatar
Written by Aryan Pour
Updated over 2 months ago

Incoming ACH debit pulls can create risk if not properly controlled. Slash now allows you to define approval rules for incoming ACH authorizations — so your team can review, approve, or auto-authorize transactions based on the sender or the amount.


You can set blanket rules for non-authorized vendors and add vendor-specific exceptions with defined limits.
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Adding approval rules for non-authorized vendors

  1. From your homepage, navigate to Payments using the left-hand sidebar.
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  2. Click Payment Policies to access approval settings.
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  3. Locate the ACH Authorization Approval Rule section and click the dropdown arrow to expand it.

    1. By default, this policy requires one review from either an Admin or Owner, and auto-approves the request if no action is taken before the manual review window expires.
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  4. Click the pencil icon to edit the rule. You’ll have the option to:

    1. Auto-approve all ACH debit transactions.
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    2. Assign reviewers by role (Admin, Owner) or individual users.
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    3. Decide what happens if no action is taken:

      1. Auto-approve after expiration

      2. Auto-reject after expiration
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Adding approval rules for authorized vendors

If you frequently receive ACH debits from specific vendors, you can whitelist them with a transaction limit.

  1. From your homepage, navigate to Payments using the left-hand sidebar.
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  2. Click Payment Policies to access approval settings.
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  3. Under the ACH Authorization Approval Rule section, click + Authorize New Vendor.
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  4. Enter the vendor’s name.
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  5. Add the vendor’s ACH ID (you can find the ACH ID of popular vendors below)
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  6. Set the maximum transaction limit you want to authorize for this vendor.

ACH debit pulls up to this amount will be auto-approved. Anything above the limit will follow your manual review policy.

How to find ACH ID for popular vendors

If you’d like to add commonly used vendors as authorized vendors, Slash makes it easy to locate their ACH ID if they’ve previously pulled funds from your account.

  1. From your homepage, navigate to Payments using the left-hand sidebar.
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  2. Locate the vendor under your recent Inbound ACH Debit transactions.
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  3. Click on the relevant transaction and expand the Advanced Transaction Details tab.
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  4. Under the expanded section, you’ll see a field labeled Company ID — this is the vendor’s ACH ID.
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  5. Copy the Company ID and use it to authorize the vendor by following the steps outlined above.

If you are authorizing a vendor for the first time and haven’t received an ACH debit from them yet, we recommend doing a quick search for “<Company Name> ACH Company ID” online or contacting the vendor directly to obtain their ACH ID.


By defining clear ACH debit approval rules, you maintain control over incoming funds while reducing operational friction. Whether you want to prevent unauthorized debits or streamline pulls from trusted vendors, Slash gives you the flexibility to manage both with confidence.

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