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D 400 Form (2019)

Use a D 400 Form 2019 template to make your document workflow more streamlined.

What the D 400 Form (2019) does

The D 400 Form (2019) is a North Carolina individual income tax return for reporting a taxpayer’s state income, adjustments, credits, tax liability, payments, and balance due or refund. A filer or authorized preparer completes the applicable lines, reviews supporting schedules, and signs the return before submission through the required state filing process. signNow can organize the PDF, place signature fields, route it for electronic signatures, and preserve an audit trail. State acceptance, filing instructions, and signature requirements should be checked against North Carolina Department of Revenue guidance for the applicable edition.

How the D 400 Form workflow works

Complete the D 400 Form through a controlled upload, field review, signature request, and audit-trail workflow.

  • Upload form: Upload the D 400 Form PDF to signNow.
  • Check fields: Review detected fields and add missing taxpayer fields.
  • Assign signers: Assign signature and date fields to each signer.
  • Store record: Send, complete, and retain the signed tax record.

Steps to complete the D 400 Form

Use this sequence to prepare the D 400 Form in signNow while keeping taxpayer roles and completion evidence clear.

  • Upload form:

    Upload the D 400 PDF.
  • Check fields:

    Review detected and missing fields.
  • Assign roles:

    Assign taxpayer and preparer roles.
  • Send request:

    Send signature invitations.
  • Store records:

    Save the signed return and audit trail.

Features for completing the D 400 Form

signNow connects the D 400 Form PDF, assigned fields, electronic signatures, and completion records in one documented workflow.

PDF preparation

Upload the D 400 PDF and prepare it without recreating North Carolina tax-return fields manually, reducing transcription between the source document and the signing workflow.

Field detection

Auto-detected fields help identify existing blanks, while reviewers can add taxpayer, spouse, preparer, signature, and date fields before sending the return.

Role assignment

Assign fields to the taxpayer, spouse, or preparer so each person completes only the information and signatures designated for that role.

Signature routing

Send the prepared D 400 Form by email and collect signatures without passing paper copies between the taxpayer and authorized preparer.

Audit trail

The audit trail records signing activity, timestamps, and related events, creating a review record alongside the completed North Carolina return.

Record storage

Completed files can be retained with their audit trail, supporting later access to the signed D 400 Form and associated filing records.

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Security controls for D 400 records

Transport encryption:

TLS 1.2/1.3 in transit

Stored encryption:

AES-256 at rest

Security certification:

ISO 27001 certified

Control reporting:

SOC 2 Type II certified

Electronic signatures:

ESIGN and UETA compliant

Privacy controls:

GDPR and CCPA compliant

Platform requirements for D 400 signing

A browser-based D 400 workflow requires an internet connection and a supported browser such as Chrome, Firefox, Safari, or Edge. signNow protects data in transit with TLS 1.2/1.3 and provides mobile apps for iOS and Android.

  • Browsers Chrome, Firefox, Safari, Edge
  • Operating systems Windows, macOS, iOS, Android
  • Connection security TLS 1.2/1.3 encryption

Tax preparers should use managed Windows or macOS devices when handling taxpayer information and restrict access to authorized staff. Review mobile permissions before using iOS or Android devices, and preserve the completed D 400 Form and audit trail in an approved records system.

Find and fill out the correct 2012 d 400 form

airSlate SignNow helps you fill in and sign documents in minutes, error-free. Choose the correct version of the editable PDF form from the list and get started filling it out.

VersionsForm popularityFillable & printable
NC DoR D-400 20254.7 Satisfied (50 Votes)
NC DoR D-400 20234.8 Satisfied (329 Votes)
NC DoR D-400 20224.8 Satisfied (1352 Votes)
NC DoR D-400 20214.8 Satisfied (2103 Votes)
NC DoR D-400 20204.8 Satisfied (167 Votes)
NC DoR D-400 20194.6 Satisfied (1284 Votes)

What the D 400 audit trail records

The audit trail documents the signing events behind a completed D 400 Form, separate from the steps used to prepare and send the PDF.

01

Authenticate signer:

Records the signer identity and configured authentication event.
02

Capture timestamp:

Captures the time associated with each signing action.
03

Track document:

Links the completed D 400 file to its document history.
04

Seal record:

Preserves completion evidence against later unauthorized changes.
05

Log events:

Maintains an ordered activity history for review.
06

Export trail:

Allows authorized users to retrieve or export the audit trail.

Privacy checks for D 400 Form

  • Personal taxpayer data may remain visible in completed PDFs shared without recipient controls.
  • Missing consent records can weaken evidence that electronic delivery was accepted.
  • Unrestricted folder permissions can expose Social Security numbers and tax information.
  • Forwarded signing links can allow unintended access to the D 400 Form.

Risks from incomplete D 400 records

Incorrect return

Filing error

Missing information

Delayed processing

Incomplete audit trail

Weak evidence

Poor retention

Record loss

D 400 rollout and retention timeline

A D 400 workflow can move from preparation to controlled signing, then into retention periods shaped by federal tax-record rules.

Setup:

Upload the D 400 PDF and review detected fields.

First send:

Route assigned signature fields to the taxpayer or preparer.

Team onboarding:

Give authorized staff role-based access to tax-return templates.

Seven-day trial:

Test the signing workflow during signNow’s seven-day free trial.

Completion:

Save the signed return with its completion evidence.

Three years:

Federal tax assessment period under IRC §6501(a).

Six years:

Retain longer when income understatement exceeds 25 percent.

Indefinitely:

Fraud or no-return situations may require indefinite records.

Best practices for D 400 records

Retain the signed return, audit trail, and filing evidence as one controlled record, using the applicable federal and North Carolina requirements.

Apply the applicable tax period

Keep the signed D 400 Form and its audit trail together in an access-controlled repository. Federal tax records generally align with the three-year assessment period under IRC §6501(a), but retain them six years when a 25 percent income understatement applies.

Export the audit trail

Export the completed audit trail after signing and associate it with the exact D 400 PDF version. Preserve timestamps, signer activity, and completion evidence so reviewers can connect the record to the filed return.

Restrict taxpayer information

Limit access to taxpayers, authorized preparers, and designated administrators. Taxpayer identification and income information should not remain in broadly shared folders or unsecured email attachments after the D 400 workflow is complete.

Check North Carolina rules

Document any state-specific retention rule that exceeds the federal period. North Carolina requirements may vary by record type, so confirm the applicable Department of Revenue guidance before deleting the D 400 record.

D 400 Form troubleshooting questions

These answers address field preparation, signature evidence, plan selection, consent, and retention for the D 400 Form workflow.

Upload the D 400 PDF again and inspect the source file for password protection or corruption. signNow’s field detection works from the uploaded document; add missing signature and date fields manually before sending the return.

Open the document’s recipient settings and confirm that the taxpayer, spouse, or preparer has the correct assigned fields. Unassigned fields can prevent completion even when the D 400 PDF itself opens correctly.

Use signNow’s audit trail to review the signing event, timestamp, and activity history. ESIGN and UETA recognize electronic signatures when intent, consent, attribution, and record retention requirements are satisfied.

The Business plan includes legally binding eSignatures, templates, audit trails, and mobile apps at $8/user/month with annual billing. Business Premium adds bulk send at $15/user/month annually; verify plan suitability for your D 400 volume.

A consumer-facing electronic record may require an ESIGN disclosure explaining paper-record rights, electronic access, and consent withdrawal procedures under 15 U.S.C. §7001(c). Obtain the required consent before routing the D 400 electronically.

Retain the completed D 400 Form and audit trail according to the applicable North Carolina and federal recordkeeping rules. For federal tax records, IRC §6501(a) provides a three-year assessment period, with longer periods in specified situations.

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