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Where to mail your Delaware state tax return

Mailing your Delaware Form 200-01 depends on your situation: Balance due goes to Delaware Division of Revenue, PO Box 508, Wilmington, DE 19899-0508, while Zero balance (no tax due) goes to Delaware Division of Revenue, PO Box 8711, Wilmington, DE 19899-8711, while Refund goes to Delaware Division of Revenue, PO Box 8710, Wilmington, DE 19899-8710. Pick the address that matches your return below, sign and date the form, and mail it before the deadline.

Balance due

Delaware Division of Revenue
PO Box 508
Wilmington, DE  19899-0508

Use this address for a paper Form 200-01 where balance due.

Verified September 2026revenue.delaware.gov

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Other mailing addresses

Zero balance (no tax due)

Delaware Division of Revenue
PO Box 8711
Wilmington, DE  19899-8711

Use this address for a paper Form 200-01 where zero balance (no tax due).

Refund

Delaware Division of Revenue
PO Box 8710
Wilmington, DE  19899-8710

Use this address for a paper Form 200-01 where refund.

Your name
Your return address

Delaware Division of RevenuePO Box 508Wilmington, DE 19899-0508

Your letter, printed and mailed for you.

Key facts

  • Delaware splits paper Form 200-01 returns by address: balance due vs. zero balance (no tax due) vs. refund — mailing to the wrong one can delay processing.
  • Make checks or money orders payable to the "Delaware Division of Revenue".
  • A mailed return is generally considered filed on time if it is postmarked by the state filing deadline — sign and date it, since an unsigned return isn't considered filed.
  • PostPal prints your return and hands it to USPS the next business day for $5 — no printer, envelope, or trip to the post office.

How to send your letter

  1. 1

    Pick the address that matches your situation

    Delaware uses a different address depending on whether you're enclosing a payment: Balance due; Zero balance (no tax due); Refund. Choose the one below that matches your return.

  2. 2

    Assemble and sign your return

    Attach any required schedules and withholding statements to your Form 200-01. Sign and date it — an unsigned paper return isn't considered filed.

  3. 3

    Address the envelope exactly

    Use Delaware Division of Revenue at the address for your situation, shown above.

  4. 4

    Mail it before the deadline

    A USPS postmark by the filing deadline counts as on time. Upload your return to PostPal and we print, envelope, and mail it within one business day for $5, with a dated confirmation emailed to you.

Common questions

Where do I mail my Delaware state tax return?

It depends on whether you're enclosing a payment. For "balance due," mail it to Delaware Division of Revenue, PO Box 508, Wilmington, DE 19899-0508. For "zero balance (no tax due)," mail it to Delaware Division of Revenue, PO Box 8711, Wilmington, DE 19899-8711. For "refund," mail it to Delaware Division of Revenue, PO Box 8710, Wilmington, DE 19899-8710.

Does it matter which Delaware address I use?

Yes. Delaware Division of Revenue routes paper returns by mail code, so sending a payment return to the no-payment address (or vice versa) can delay processing, even though the state and ZIP still get it to the right building.

What do I make my check payable to?

The "Delaware Division of Revenue". Write your Social Security number and the tax year on the check or money order.

Is a mailed Delaware return considered on time if it's postmarked by the deadline?

Generally yes — most states, including Delaware, treat a return as timely filed if it carries a USPS postmark on or before the filing deadline. Keep proof of mailing for your records; PostPal emails you a dated confirmation.

Can PostPal mail my Delaware tax return for me?

Yes. Upload your completed, signed Form 200-01 and PostPal prints it and mails it to Delaware Division of Revenue, PO Box 508, Wilmington, DE 19899-0508 (or your correct address, based on your situation) the next business day for $5, with a dated Confirmation of Mailing.

Sources

Addresses verified September 2026 against official sources. Always confirm on the official site before time-sensitive filings.

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