Step-by-Step: Setting Up a Non-Custodial Multisig for Business Treasury

If your business holds USDC in a single wallet controlled by one person, you have a single point of failure. If that person's key is compromised, stolen, or if they go rogue — your treasury is gone. There's no bank to call, no fraud department to reverse the transaction.

This is why every serious business using crypto for treasury or settlement uses a multisig wallet — a wallet where 2 or more people must approve before any funds move.

What Is a Multisig Wallet?

A multisig (multi-signature) wallet is a smart contract that requires M-of-N signatures to execute a transaction. For example:

• 2-of-3: Any 2 out of 3 designated signers must approve. Best for small teams.
• 3-of-5: Any 3 out of 5 must approve. Common for companies with a board or multiple co-founders.
• 2-of-2: Both parties must approve. Used for joint ventures or escrow.

The "non-custodial" part means no third party holds your keys. The multisig is a smart contract on Solana — Squads Protocol doesn't have access to your funds.

Why Does Your Business Need a Multisig?

Four reasons:

How to Set Up a Squads Multisig on Solana

Squads Protocol (squads.so) is the leading multisig solution on Solana. It's used by major Solana protocols and enterprises. Here's the step-by-step:

Step 1: Gather Your Signers

Decide who your signers will be. For a typical business setup:

• Signer 1: CEO / Founder (primary approver)
• Signer 2: CFO / Finance lead (required for large transactions)
• Signer 3: CTO / Ops lead (backup signer)

Each signer needs a Solana wallet (Phantom, Backpack, or a Ledger hardware wallet for maximum security). Collect their wallet public keys.

Step 2: Create the Multisig on Squads

1. Go to app.squads.so and connect your wallet
2. Click "Create Multisig"
3. Add the 3 wallet addresses as members
4. Set the threshold to 2 (2-of-3 approval required)
5. Name it (e.g., "Acme Corp Treasury")
6. Confirm the creation transaction

This creates an on-chain Squads program account. The multisig address is your new treasury address.

Step 3: Fund the Multisig

Send USDC to the multisig address. You can do this from any exchange, wallet, or via Settlr. The funds are now controlled by the smart contract — no single signer can move them.

Step 4: Make Transactions

1. Any signer can propose a transaction (e.g., "Pay Vendor X 5,000 USDC")
2. The proposal appears in the Squads dashboard for all members
3. A second signer reviews and approves the transaction
4. Once the threshold is met (2 of 3), the transaction executes automatically

How Does Settlr Work with a Multisig Treasury?

Settlr supports Squads multisig natively. When you connect a Squads wallet to Settlr:

• Payouts are proposed through the Settlr dashboard
• Co-signers approve via the Squads app or Settlr directly
• Once approved, the payout settles in under 1 second
• Full audit trail on-chain: who proposed, who approved, when, and how much

This gives you the speed of stablecoin settlement with the security controls of a traditional corporate bank account.

Should You Use a Hardware Wallet for Multisig?

Yes, if your treasury holds more than $10,000. Hardware wallets (Ledger Nano X or Ledger Stax) keep your private key offline — they never touch your computer or the internet. Even if your computer is compromised, your signing key is safe.

For a 2-of-3 setup, we recommend:

• Signer 1: Ledger hardware wallet (cold storage)
• Signer 2: Ledger hardware wallet (cold storage)
• Signer 3: Phantom or Backpack (hot wallet, for convenience as the backup)

What If I Lose a Key?

This is the beauty of 2-of-3: if one signer loses their key, the other two can still approve transactions. The remaining signers can vote to replace the lost key with a new one via a Squads proposal. No funds are ever at risk from a single key loss.

However, if 2 of 3 keys are lost simultaneously, the funds are permanently inaccessible. This is why we recommend hardware wallets with proper seed phrase backups stored in separate physical locations.

Getting Started

1. Create your Squads multisig at app.squads.so
2. Connect it to Settlr at settlr.dev/onboarding
3. Fund the multisig with USDC
4. Start making multi-party-approved payouts

If you're currently holding business funds in a single wallet, switch to a multisig today. It takes 10 minutes and eliminates your single biggest security risk.

Set up Settlr with multisig →