Secure Client Portals for Accounting Firms and Clients

Secure client portal software that helps accounting firms share files, communicate, and collaborate with clients all from one centralized place.

Secure Client Portals for Accounting Firms and Clients

A single, secure place for your clients to upload files and make payments.

Stop sending emails with massive attachments and chasing clients to get paid. With Mango’s convenient portal, you can securely exchange files, messages, requests, and documents.

Secure Client Portal Overview

Secure Client Portal Overview

Improve collaboration and streamline client communication.

checkmark-big

Professional, Custom Branded Portal

Consistent branding is critical to putting your name out there and establishing your firm in the accounting industry. The first thing your clients will see when logging into the client portal is your firm’s name and logo. Put your name on it, not ours, turning every portal interaction into a marketing moment.

checkmark-big

Ditch the Filing Cabinets and Make Projects Paperless

No need to worry about printing invoices or collecting physical signatures to receive payments. Our software can take your entire billing process paperless, saving you time and cutting down on paper use. Save thousands every year on overhead fees including paper, printer ink, and toner, while lowering your environmental footprint.

checkmark-big

Simple and Secure Transactions

With SSL encryption, all credit card transactions are securely processed in accordance with the latest standards. Allow clients to update and change credit card entries on their own when they log into the client portal. Optionally, you can allow editing of client bio information to allow users to update contact info and other relevant data as needed.

checkmark-big

Get Paid Faster for a Steady Cash Flow

Whether you’re collecting payments via credit card or ACH processing, Mango provides options and flexibility so that you can improve cash flow and reduce your accounts receivable. Standard ACH transactions take as long as three business days, but Mango funds your account the next day.

Benefits of Client Portal Software

checkmark-big

Secure & Controlled Access

Clients sign in to a protected portal, not through email threads or insecure links. Role-based permissions ensure only the right people see the right information. Bank-level security with 256-bit encryption.

checkmark-big

Organized File Exchange

Clients and staff can upload or download documents anytime, without digging through inboxes. You get unlimited storage so that you can keep as much as you need in a client portal.

checkmark-big

Clear Communication Threads

Messages related to specific documents or projects stay connected, reducing confusion and lost context.

checkmark-big

Transparency & Auditability

Every upload, view, download, and message is logged — helping you meet compliance and retention policies.

checkmark-big

Fewer Data Silos

Client work, files, tasks, and communication live in one system instead of separate tools that don’t talk to each other. Clients can check on invoices, service records, and other important details without getting you involved at all.

Secure Place for your clients
Easy-to-Use Client Portal Software

How Accounting Firms Use Client Portal Software

  • Tax Document Exchange: Securely share and collect everything needed for individual or business returns.
  • Engagement Letters & Approvals: Clients can access, sign, and upload required agreements from the portal.
  • Payroll and Benefits Docs: Employees and clients can send sensitive payroll data securely.
  • Quarterly and Monthly Deliverables: Clients can retrieve financial reports or bookkeeping summaries as soon as they’re ready. 
  • Advisory Materials: Share analysis, strategy decks, and other advisory documents through a professional interface. 

Bank-Level Security with Client Portal Software for File Sharing

The best portals will add convenience as well as security.

A client portal is convenient, but it doesn’t matter how easy it is to use if it can’t keep files safe. That’s why Mango’s client portal meets all legal requirements for secure document management – without adding an unnecessary extra hoop for your clients to jump through. 

Mango’s client portal protects all of your files with 256-bit, bank-level encryption (the same type used by US security agencies) and our advanced firewalls. 

Take the Pain Out of Getting Paid

Give your clients payment flexibility with MangoPayments processing options.

Straightforward Credit Card Processing

  • Process one-time sales, refunds, credits and voids
  • Enroll inside Mango Billing with quick approval
  • Offer Credit Card Payments in the Client Portal
  • Secure, tokenized, encrypted and full PCI compliant
  • Flat Rate of 2.99%, plus .29 per transaction

Fast ACH Processing

  • Reduce fraud and chargeback risk
  • Lower fees than Credit Card  – 75% less
  • Secure, tokenized, encrypted, and full PCI compliant
  • Convert paper checks to electronic transactions
  • Next day funding
  • 1% per transaction (up to $10 max)
Take the Pain Out of Getting Paid
Robust Cash Receipts Processing

Robust Cash Receipts Processing

  • Multiple Payment Types - Annotate what type of payment was received. Ability to handle Credit Memos and print the Credit Memo.
  • Advance Payments/Retainers - Receive advance payments and apply during Manual Invoicing or in Cash Receipts Entry.

Client Portal Software Can Add Significant Value to Your Accounting Firm

  • Quick setup without disruption: Secure client portal software should simplify work, not create new complexity. Mango is fast to deploy and easy for teams and clients to adopt, with minimal change management. 
  • Stop phone and email tag: Instead of tracking down documents or overdue payments, client portals for accountants give clients access on their schedule. 
  • Instant visibility and alerts: Real-time notifications show when clients upload files, complete actions, or submit payments. Automated reminders help firms move work forward without manual follow-ups or spreadsheets.

The Time-Saving Tools Your Clients Will Like and Use Run on Mango

Innovative file sharing and electronic signature tools built for you and your clients to collaborate with ease

Frequently Asked Questions