Use Case
E-Signatures for Accounting & Tax
Handle seasonal volume spikes with bulk send, secure client authorizations with access code gates, and maintain IRS-compliant records with immutable WORM storage.
Challenges accounting firms face
⚠ Seasonal volume spikes
Tax season means hundreds of engagement letters and authorizations in weeks. Manual sending, tracking, and follow-up creates bottlenecks that delay filings and frustrate clients.
⚠ Client authorization requirements
IRS Form 8879 and other tax authorizations require provable client consent. Basic e-signatures without timestamps or audit trails create risk during IRS audits and client disputes.
⚠ Record retention compliance
IRS requires 3-7 year retention for tax records, and professional liability extends further. Scattered files across email, cloud storage, and filing cabinets make compliance difficult to prove.
How Abundera Sign supports accounting workflows
✓ Bulk send for tax season
Send up to 100 engagement letters or authorizations in a single batch via CSV upload or API. Individual tracking, automated reminders, and completion notifications for every recipient.
✓ PAdES-LTA digital signatures
Every signed PDF includes a PAdES-LTA digital signature with long-term validation. Green checkmark verification in Adobe Acrobat — the standard auditors and the IRS recognize.
✓ Dual RFC 3161 timestamps
Two independent trusted timestamps from separate certificate authorities on every document. Proves exactly when a client signed — critical for IRS authorization deadlines.
✓ Immutable WORM storage
Signed documents sealed in write-once immutable storage with configurable retention from 3 to 99 years. Documents cannot be altered or deleted — meeting IRS and professional liability requirements.
✓ Access code gates
Protect sensitive tax documents with access codes shared via a separate channel. Ensures only the intended client can view and sign — adding a layer of identity verification without extra cost.
✓ API automation
Integrate directly with practice management and tax software via REST API. Automate engagement letter generation, send for signature, and receive webhook callbacks on completion — no manual steps.
Ready-to-use accounting templates
Secure your client records with stronger evidence
Try the full signing experience — no account needed. See PAdES-LTA digital signatures, dual timestamps, and immutable WORM storage in action.