W-4 · I-9 · Direct Deposit · Benefits · FMLA
Fax HR & Payroll
Documents Online
Send W-4s, direct deposit authorizations, benefits enrollment, and onboarding forms from your browser — certified proof of delivery included.
From $0.60 with credits · $1.29 pay-as-you-go · No account needed
W-4 · I-9 · Direct Deposit · Benefits · FMLA
Fax HR & Payroll
Documents Online
Payroll processors, benefits carriers, and background check firms all accept fax — and many prefer it. Send onboarding forms, benefits elections, and payroll correspondence from your browser. Get a SHA-256 certified receipt proving exactly when your documents arrived.
Fax an HR document now
Certified receipt · No account required
📠 Fax HR / Payroll Form →✍️ Sign & Fax a Form✓ Certified SHA-256 receipt — tamper-evident proof of transmission
✓ Verifiable at faxseal.com/verify — permanent record
✓ No account or subscription required
✓ From $0.60/fax with credits · $1.29 pay-as-you-go
✓ Files deleted within 24 hours
✓ Stripe-secured checkout
HR and payroll documents sent by fax
Payroll processors, benefit carriers, and background check firms all maintain fax lines for these
New hire onboarding forms
Fax W-4 withholding elections, I-9 supporting documents, direct deposit authorizations, and employee agreements to payroll processors.
Background check authorizations
Send signed background check release forms and identity documentation to screening companies such as Sterling, HireRight, and Checkr.
Benefits enrollment
Fax health insurance elections, 401(k) enrollment forms, FSA designations, and dependent coverage additions to benefit carriers.
Payroll processor correspondence
Submit payroll adjustments, tax withholding changes, garnishment notices, and payroll corrections to your payroll provider.
Employment verification
Send and receive employment verification requests and responses for mortgages, background checks, and government benefits.
FMLA & leave documentation
Fax FMLA medical certifications, return-to-work clearances, and leave request documentation between employees, HR, and healthcare providers.
How it works
Upload your form
W-4, I-9, direct deposit form, or benefits enrollment PDF. Up to 20MB.
Enter the recipient fax number
Use the fax number from your payroll processor's portal, benefits carrier, or HR department letterhead.
Pay & transmit
From $0.60 with credits · $1.29 pay-as-you-go. Card only charged on confirmed delivery.
Get certified receipt
SHA-256 receipt emailed instantly. Proves the exact date your form was received — useful for benefits enrollment deadlines and payroll cutoffs.
Upload your form
W-4, I-9, direct deposit form, or benefits enrollment PDF. Up to 20MB.
Enter the recipient fax number
Use the fax number from your payroll processor's portal, benefits carrier, or HR department letterhead.
Pay & transmit
From $0.60 with credits · $1.29 pay-as-you-go. Card only charged on confirmed delivery.
Get certified receipt
SHA-256 receipt emailed instantly. Proves the exact date your form was received — useful for benefits enrollment deadlines and payroll cutoffs.
Frequently asked questions
Why do payroll processors and benefits carriers still require fax?
Fax provides a secure, auditable transmission record that many payroll and benefits systems are designed around. Large processors like ADP, Paychex, and Gusto all accept fax for certain transactions. Benefits carriers often require faxed enrollment forms to create a verifiable paper record that satisfies their internal compliance requirements.
Can I fax a W-4 to my payroll provider?
Yes. Many payroll processors accept faxed W-4s, particularly for mid-year withholding changes or corrections. Use the fax number from your payroll provider's administration portal or HR contact. The certified SHA-256 receipt proves when the form was received — useful if withholding doesn't update on schedule.
Can I sign a form and fax it in one step?
Yes. Use the Sign & Fax tool — upload the form, draw or type your signature, place it on the signature line, and fax directly. No printing, no scanning, no fax machine. Works for W-4s, direct deposit authorizations, benefits elections, and any other PDF form.
Is it secure for sensitive employee data?
FaxSeal transmits over the standard PSTN fax network — the same infrastructure used by HR departments and payroll companies. Documents are deleted from FaxSeal servers within 24 hours of transmission. We do not retain, index, or analyze document contents.
Can HR teams send the same onboarding packet to multiple new hires?
Yes. FaxSeal Broadcast Fax lets you send one PDF to up to 500 fax numbers simultaneously. For recurring onboarding workflows, FaxSeal also integrates with Zapier — connect your ATS or HRIS to trigger a fax automatically when a new hire is added.
What if a benefits enrollment deadline is missed due to a failed fax?
You are never charged for an undelivered fax. More importantly, the certified SHA-256 receipt proves you attempted to submit on time — which may be relevant if a carrier claims a form was received late. Keep the failed transmission record and retry or contact the carrier directly.
Fax HR forms — certified proof of timely submission
SHA-256 certified receipt · From $0.60 with credits · $1.29 pay-as-you-go.