KAS CPA Portal Login & Secure File Upload
Access the secure KAS client portal to upload tax documents, exchange files, sign engagement letters, view invoices, retrieve completed returns, and manage advisory records nationwide where permitted.
Access Your Account
Log in to the secure KAS CPA portal to view documents, upload files, sign forms, and communicate with your CPA.
ENTER PORTAL →First time accessing the portal? Contact us to set up your account.
Everything You Need, Securely
Document Exchange
Upload source documents and download completed returns, financial statements, and advisory deliverables.
E-Signatures
Review and electronically sign engagement letters, tax authorizations, and other documents from anywhere.
Secure Messaging
Communicate directly with your CPA through secure portal messaging instead of email.
Engagement Tracking
See status updates on your engagement as work moves forward.
Documents & Billing
Access engagement documents and billing records we share with you through the portal.
Document Archive
Access your complete history of tax returns, financial statements, and engagement files — organized by year and type.