About Block, Inc.

Block, Inc. is an American financial technology company that develops payment, commerce, consumer finance, music, and bitcoin-related products. Jack Dorsey and Jim McKelvey founded the company as Square, Inc. in 2009. The corporate name changed from Square, Inc. to Block, Inc. in December 2021 to reflect its expanded collection of businesses.

Block’s principal brands include Square, Cash App, Afterpay, TIDAL, Bitkey, and Proto. Square provides payment processing, point-of-sale systems, business software, hardware, banking tools, payroll, and other merchant services. Cash App provides eligible customers with payment, stored-balance, debit-card, investing, bitcoin, savings, tax, and other financial features.

Block follows a distributed-work model and has stated that it no longer maintains a conventional designated headquarters. However, the company identifies 1955 Broadway, Suite 600, Oakland, CA 94612 as its principal executive-office address in corporate filings. Block is publicly traded on the New York Stock Exchange under the ticker symbol XYZ.

Quick Information

Corporate Phone Number

415-375-3176

This number is associated with Block, Inc.’s principal executive offices.

It is not the appropriate support number for Cash App transactions, Square merchant accounts, Afterpay purchases, or TIDAL memberships.

Customer Service Number

Block uses separate customer-support services for each product.

Cash App Support: 1-800-969-1940
Square Customer Support: 1-855-700-6000

Customers should use the support channel for the Block product involved rather than contacting the corporate office.

Corporate Office Address

Block, Inc.
1955 Broadway
Suite 600
Oakland, CA 94612
United States

Headquarters Address

Block, Inc. does not maintain a traditional designated headquarters under its distributed-work model.

Its principal executive-office address is:

Block, Inc.
1955 Broadway
Suite 600
Oakland, CA 94612
United States

Email

Block does not publish one general customer-service email covering all of its brands.

Customers should use the secure support systems provided by Cash App, Square, Afterpay, TIDAL, Bitkey, or the other product involved.

Industry

Financial Technology, Payment Processing, Business Software, Consumer Finance, and Digital Commerce

Founded

2009

The company was originally incorporated as Square, Inc. and changed its corporate name to Block, Inc. in December 2021.

Number of Employees

Block reported approximately 10,205 employees at the end of 2025.

The company subsequently announced a significant workforce reduction in February 2026, so this year-end figure should not be treated as its exact current headcount.

Corporate Office Hours

Block does not publish general public visiting hours for its principal executive office.

Support hours vary by product. Customers should review the official support page for Cash App, Square, Afterpay, TIDAL, or the applicable Block service.

Website

block.xyz

Investor Relations

Block’s annual reports, quarterly results, SEC filings, stock information, governance documents, and investor resources are available through Block Investor Relations.

Careers Page

block.xyz/careers

Block publishes employment opportunities across its corporate organization and brands through its official careers website.

Block, Inc. Products & Services

Block builds financial, commerce, payment, entertainment, and bitcoin-related products through several independently branded business units.

Square Point of Sale

Square provides point-of-sale software and hardware for businesses.

Available products can include Square Register, Square Terminal, Square Stand, card readers, mobile payment tools, receipt management, sales reporting, and business-management features.

Square Payment Processing

Square allows eligible sellers to accept credit cards, debit cards, contactless payments, online payments, invoices, and other supported payment methods.

Processing rates, deposit schedules, account requirements, chargeback procedures, and product availability depend on the seller’s country and service agreement.

Square Business Software

Square offers business-management software for restaurants, retailers, beauty businesses, professional services, and other industries.

Features may include inventory, customer management, appointments, invoicing, online ordering, loyalty, marketing, payroll, staff management, and reporting.

Square Banking Services

Square provides eligible sellers with financial products such as checking, savings, debit cards, and loans through Block subsidiaries and partner financial institutions.

Block, Inc. itself is a financial-services platform and is not an FDIC-insured bank. Deposit insurance depends on the financial institution, product, and applicable pass-through insurance conditions.

Square Loans

Eligible businesses may receive loan offers through Square Financial Services, Inc.

Loan availability is not guaranteed and is subject to credit approval, account history, underwriting requirements, fees, and repayment terms.

Cash App Payments

Cash App allows eligible users to send and receive money.

Transfers, limits, identity-verification requirements, availability, and fees depend on the account and transaction type.

Cash App Card

Eligible Cash App customers can obtain a payment card linked to their Cash App balance.

Card features, transaction limits, dispute rights, ATM fees, and issuing-bank information are governed by the applicable account agreement.

Cash App Direct Deposit

Cash App may allow eligible customers to receive payroll, government benefits, tax refunds, and other qualified deposits.

Availability and deposit timing depend on the payer, financial institutions, verification status, and account eligibility.

Cash App Investing

Cash App Investing allows eligible customers to buy and sell selected stocks.

Brokerage services are provided through the appropriately registered Block subsidiary identified in the customer agreement.

Cash App Bitcoin

Eligible Cash App customers can buy, sell, send, and receive bitcoin.

Bitcoin transactions involve financial risk and may be irreversible. Customers should confirm wallet addresses and transaction details before sending funds.

Cash App Taxes

Cash App Taxes provides eligible federal and state tax-filing services.

The service may not support every tax situation. Customers should review eligibility and filing requirements before relying on the product.

Afterpay

Afterpay provides buy-now-pay-later services that allow eligible customers to divide purchases into installments.

Approval, spending limits, payment schedules, late-payment policies, and available retailers depend on the customer and market.

TIDAL

TIDAL is a music-streaming service offering songs, albums, playlists, videos, and other artist content.

Membership prices, audio features, available content, and subscription options vary by country and plan.

Bitkey

Bitkey is a self-custody bitcoin wallet product developed within Block’s ecosystem.

Customers are responsible for understanding the security, recovery, and transaction risks associated with self-custody.

Proto

Proto develops bitcoin-mining hardware, software, and related infrastructure.

Products and services are generally intended for eligible mining operators and other bitcoin-industry customers.

Block, Inc. Corporate Phone Numbers

Corporate Phone Number

415-375-3176

This number is associated with Block, Inc.’s principal executive offices.

It should not be treated as the customer-support line for an individual Block brand.

Corporate Headquarters Number

415-375-3176

Block does not maintain a traditional designated headquarters, but this number is associated with its principal executive-office address.

Product-related callers should contact Cash App, Square, Afterpay, or the appropriate service directly.

Corporate Office Number

415-375-3176

This number may be used for appropriate Block corporate inquiries.

Corporate staff may not be able to access or resolve individual customer accounts.

Cash App Customer Support Number

1-800-969-1940

This is Cash App’s official customer-support telephone number.

Cash App representatives will never ask customers to provide a password, PIN, sign-in code, or full debit-card number or to send a “test” payment.

Cash App Toll-Free Number

1-800-969-1940

Cash App voice support is generally available daily.

Customers should confirm current hours through the Cash App support website or application.

Cash App Fraud and Unauthorized Transaction Support

1-800-969-1940

Customers can use the official Cash App support number for suspected unauthorized account activity.

For the most secure assistance, customers should also open Cash App, select Support, and report the transaction through their authenticated account.

Square Customer Support Number

1-855-700-6000

Square publishes this number for merchant customer support.

There may be a wait when calling, so eligible sellers may also request a callback through their authenticated Square account.

Square Toll-Free Number

1-855-700-6000

This toll-free number is intended for eligible Square customer-support matters.

Square may require the seller to sign in and provide a customer code or complete identity verification.

Square Sales Number

1-833-959-5325

Square publishes this number for sales inquiries.

Prospective business customers can use it to discuss Square products, hardware, payment processing, and business software.

Square Banking and Loans Support

Square Banking and loan-support options depend on the specific product and account.

Customers should sign in to their Square account or call 1-855-700-6000 to obtain the appropriate support route.

Afterpay Customer Support

Afterpay support varies by country and account.

A current universal U.S. telephone number was not identified in the official materials reviewed, so customers should use the Afterpay application or official Help Center.

TIDAL Customer Support

TIDAL primarily provides customer assistance through its online support system.

A separate verified general customer-service telephone number was not identified.

Investor Relations Number

Block provides investor support through its official Investor Relations website.

A separate current Investor Relations telephone number was not identified in the public resources reviewed, so no unverified number should be included.

Media and Press Number

Block and its brands maintain separate media channels.

A single verified telephone number covering all Block media inquiries was not identified. Journalists should use the official media contact associated with Block, Square, Cash App, or the relevant brand.

Human Resources and Careers

Block directs job applicants to its careers website.

A separate public HR telephone number was not identified. Applicants should follow the contact instructions included in the relevant job listing or recruiting correspondence.

How to Reach a Real Person at Block, Inc.

First identify which Block product is connected with the issue. Cash App customers can open the application, select their profile, choose Support, and begin a support conversation, or call 1-800-969-1940. Square sellers can sign in to their Square account, use the Support Center, request a callback, or call 1-855-700-6000. Afterpay and TIDAL customers should use their respective authenticated support systems.

Before contacting support, gather the account email, telephone number, transaction date, amount, payment method, merchant information, order or transaction identifier, screenshots, and previous case number. Never share passwords, PINs, sign-in codes, complete card numbers, or bitcoin wallet recovery information with an unsolicited caller. Block corporate personnel generally cannot resolve individual Cash App, Square, Afterpay, or TIDAL accounts.

Block, Inc. Headquarters & Corporate Office Address

Block Principal Executive Office

Block, Inc.
1955 Broadway
Suite 600
Oakland, CA 94612
United States

Corporate Phone: 415-375-3176

Block identifies this as its principal executive-office address in corporate filings.

Block Headquarters Status

Block follows a distributed-work model and does not maintain a conventional designated headquarters.

The Oakland address should therefore be described as the principal executive office rather than implying that every Block employee or business unit operates from that location.

Square Corporate Correspondence

Square is a Block brand.

Customers should use Square’s authenticated support system before mailing correspondence. Payments, hardware returns, chargeback documents, and financial records should be sent only to the verified address supplied by Square Support.

Cash App Corporate Correspondence

Cash App is a Block brand.

Cash App customers should begin through authenticated in-app support or call 1-800-969-1940. Customers should not mail cash, payment cards, identity documents, or account credentials to Block’s principal executive office without verified instructions.

Other Block Business Addresses

Afterpay, TIDAL, Bitkey, Proto, and Block’s regulated financial subsidiaries may maintain separate legal and operational addresses.

Customers should use the address contained in the agreement or support instructions for the specific product involved.

How to File a Complaint Against Block, Inc.

Step 1: Identify the Block Product

Determine whether the complaint concerns Cash App, Square, Afterpay, TIDAL, Bitkey, Proto, or another Block service.

Each brand maintains a separate customer-support and complaint process.

Step 2: Use Authenticated Support

Sign in through the official application or website and open the product’s support section.

Authenticated support helps the company locate the correct account and reduces the risk of communicating with an impersonator.

Step 3: Contact the Correct Support Number

For Cash App, call:

1-800-969-1940

For Square, call:

1-855-700-6000

Do not call a number obtained from an advertisement, unsolicited message, social-media reply, or unverified directory.

Step 4: Provide Transaction Information

Include relevant details such as:

• Account email or telephone number
• Transaction identifier
• Transaction date
• Amount
• Merchant or recipient
• Payment method
• Order information
• Screenshots
• Previous case number
• Description of the problem

Do not provide a password, PIN, sign-in code, or complete card number.

Step 5: Report Unauthorized Activity Immediately

If the complaint involves an unauthorized transaction, compromised account, stolen payment card, or suspected fraud, contact the relevant Block product immediately.

Secure the associated email, telephone account, and linked financial accounts. Contact the bank or card issuer when appropriate.

Step 6: Request a Case Number

Ask the representative to create a formal support case and provide the reference number.

Record the date, time, representative’s name when available, contact method, and resolution offered.

Step 7: Request Further Review

If the initial representative cannot resolve the complaint, request review by a supervisor, account specialist, payments team, disputes department, or other appropriate unit.

Financial disputes and error notices may be subject to deadlines, so review the applicable account agreement promptly.

Step 8: Submit a Written Complaint

Use the complaint address or secure submission method identified in the applicable Cash App, Square, Afterpay, or other product agreement.

Do not assume that Block’s Oakland office is the correct legal-notice or dispute address for every subsidiary.

Step 9: Contact Block’s Corporate Office

For appropriate unresolved corporate correspondence:

Block, Inc.
1955 Broadway
Suite 600
Oakland, CA 94612
United States

Include copies of supporting records and the product-specific case number. Do not include passwords, PINs, sign-in codes, or complete financial-account details.

Step 10: Contact an Appropriate External Organization

Depending on the product and complaint, external options may include the customer’s bank, card issuer, state financial regulator, securities regulator, consumer-protection agency, Federal Trade Commission, or Consumer Financial Protection Bureau.