Cover Letter
A short summary describing contents, tax year, preparer contact details, and certified statements about completeness and authorization for filing to aid reviewers and auditors.
A consolidated package reduces filing errors, documents authorized signatures, and preserves evidence needed for audits or inquiries. It helps ensure deadlines are met, correct payer reporting is submitted, and legal requirements for electronic execution and record retention are satisfied under ESIGN and state law.
Corporate tax teams, external CPAs, and corporate legal departments commonly prepare and rely on a Tax Corporate Tax Package to centralize filings and proof of authority.
Centralizing documents reduces rework, clarifies responsibilities, and supports consistent retention and e-signature practices across the organization.
A short summary describing contents, tax year, preparer contact details, and certified statements about completeness and authorization for filing to aid reviewers and auditors.
Completed Form 1120 or 1120-S with required schedules and attachments prepared to IRS specifications, showing principal business activity, taxable income, and calculation of tax liability.
Included W-9s and applicable 1099 forms with reconciled amounts, validated TINs, and backup withholding status documented to reduce payer penalty exposure.
Corporate resolution or power of attorney demonstrating who is authorized to sign returns and engage tax professionals; includes meeting minutes or board approval when required.
Depreciation schedules, expense detail, payroll reconciliations, and payment receipts that substantiate figures on the return and support audit defense.
E-file acknowledgements, payment confirmations, and audit trail records that show submission timestamps, signer attribution, and any acceptance notices from tax authorities.
| Field | Configuration |
|---|---|
| Signature Type | Click-to-sign or drawn signature image |
| Authentication | Email link or SMS code; use KBA for higher risk |
| Audit Trail | Enable IP, timestamp, and action logging |
| Retention | Archive PDF/A copy for minimum retention period |
No set deadline — provide upon request by payer
Recipient and IRS due by January 31 each year
Recipient due January 31; IRS paper Feb 28, electronic Mar 31
Calendar-year C corporation return generally due April 15
Quarterly payments due Apr, Jun, Sep, and Dec (corporate schedule)
| signNow | DocuSign | Adobe Sign | PandaDoc | HelloSign | |
|---|---|---|---|---|---|
| Starting Price | $8/user/mo | $15/user/mo | $14/user/mo | $19/user/mo | $15/user/mo |
| Free Trial | 7-day free trial | Varies by vendor | Varies by vendor | Varies by vendor | Varies by vendor |
| Bulk Send | Yes | Yes | Yes | Yes | No |
| Audit Trail | Yes | Yes | Yes | Yes | Yes |
| HIPAA Compliant | Yes | Yes | Yes | No | No |