Here’s a clear, step‑by‑step guide on how to file your tax in Delta State (Nigeria) using the state’s new online tax platform administered by the Delta State Internal Revenue Service (DSIRS):

✅ 1. Know the Tax Portal You’ll Use

Delta State uses an online Self‑Service Tax Platform that lets individuals and businesses register, file returns, and pay taxes online via the DSIRS system.

The portal you’ll normally interact with is often called:

Self‑Service Portal (e‑Service / TaxSmart) — for registration, filing returns, payment, etc.

You can usually access this from the main revenue site or directly (for example via links like selfservice.deltairs.com or similar DSIRS URLs).

✅ 2. Register on the Delta Self‑Service Platform

Before you can file returns, you need to register and get a taxpayer account (S‑TIN / Payer ID):

🧾 Individuals

Go to the Delta State Revenue Self‑Service Portal or DSIRS official registration page.

Click Register for S‑TIN / New Taxpayer.

Enter accurate details such as:

• Your full name

• Phone number

• Email address

• Date of birth

• Occupation

• Gender, marital status and other personal info

• Home address (LGA and state)

• Taxpayer type (individual or business)

Submit the form and wait for confirmation. You’ll receive your Delta Payer ID / S‑TIN.

👉 This ID becomes your login username for the tax portal.

✅ 3. Login and Access Your Tax Dashboard

After registration:

Visit the Self‑Service login page on the DSIRS portal

Login with your S‑TIN / Payer ID and the password you created.

You’ll see your tax dashboard where you can:

File returns

View tax liabilities

Upload supporting documents

Make payments

Generate receipts

✅ 4. Filing Your Tax Returns

The exact steps will depend on the type of tax you’re filing:

📌 For Personal Income Tax (e.g., PAYE / Self‑Assessment)

From your dashboard, choose File Return or Annual Return.

Select the tax year you are reporting (e.g., previous calendar year).

Enter your income/salary figures and other required financial details.

Confirm or upload any supporting documents (e.g., payslips, income summaries).

Review the auto‑computed tax according to Delta State rules.

Submit your return.

👉 After submission, the system will generate a tax assessment form/assessment notice.

✅ 5. Pay Your Tax

Once your return is submitted and assessed:

Use the portal’s online payment section (often linked to Remita, Paystack, or direct debit).

Pay the amount stated on the assessment.

After payment, you should be able to download receipts or tax confirmation certificates.

✅ 6. Get Your Tax Certificate / Proof

After submission and payment:

You can download your payment receipt and evidence of filing from the dashboard.

For official needs (e.g., business compliance, contracts), you can request a Tax Clearance Certificate (TCC) if needed.

⭐ Tips & Reminders

📌 Keep records: Always save screenshots or PDF copies of your submitted return and payment receipts.

📌 Observe deadlines: Nigeria’s tax year and filing deadlines may be set by law (e.g., within 90 days of year end, depending on type of taxpayer and reforms).

📌 Compliance audits: Filing is required even if your income is low or if PAYE was deducted by your employer — this ensures proper reporting with the authority. �

Delta IRS

📌 Professional help: If you’re unsure about calculations or complex income sources, consider consulting a tax professional.

If you want, I can walk you through the current portal URLs and direct links for registration and filing (so you can start immediately).