WHT Credit Notes: Using Them Against Company Income Tax (CIT)
Learn how to use WHT credit certificates to reduce your Company Income Tax in Nigeria. Understand eligibility, claiming process, and reconciliation requirements.
Last updated: 24 January 2025
When Withholding Tax is deducted from your income, you receive a credit certificate that represents prepaid tax. This certificate isn't just paperwork—it's a valuable asset that reduces your Company Income Tax liability. This guide explains how to maximize the value of your WHT credits.
Understanding WHT as Prepaid Tax
The WHT Credit Concept
When a customer or client deducts WHT from your payment:
- You receive less cash (net of WHT deduction)
- You receive a credit certificate (proof of WHT paid)
- At year-end, you offset the WHT against your CIT liability
- You only pay the difference (CIT minus WHT credits)
WHT is not an additional tax—it's advance payment of your income tax.
How It Works in Practice
Example: Consulting Income
| Step | Description | Amount |
|---|---|---|
| 1 | Invoice to client | ₦10,000,000 |
| 2 | WHT deducted by client (10%) | ₦1,000,000 |
| 3 | Cash received | ₦9,000,000 |
| 4 | WHT certificate received | ₦1,000,000 credit |
At year-end:
| Step | Description | Amount |
|---|---|---|
| 5 | Your CIT liability (calculated) | ₦3,000,000 |
| 6 | Less: WHT credits | (₦1,000,000) |
| 7 | Net CIT payable | ₦2,000,000 |
Types of Income with WHT Deduction
Common Sources of WHT Credits
| Income Type | WHT Rate | Credit Available |
|---|---|---|
| Professional/consulting fees | 10%/5% | Yes |
| Contract income | 5% | Yes |
| Construction payments | 5% | Yes |
| Rent received | 10% | Yes |
| Dividends received | 10% | Yes (conditions apply) |
| Interest received | 10% | Yes |
| Royalty income | 10% | Yes |
| Commission income | 10%/5% | Yes |
Government Contracts
Government agencies may deduct full taxes at source:
- WHT at applicable rate
- May deduct additional amounts
- All become credits against CIT
Collecting and Managing WHT Certificates
Obtaining Certificates
For every WHT deduction, you should receive:
- Original certificate from the payer
- Details matching the transaction
- Payer's TIN and information
What to Do If Certificate Not Received
If your client deducts WHT but doesn't provide certificate:
- Request formally - Written request to client
- Set deadline - Give reasonable timeframe
- Follow up - Persistent but professional
- Document efforts - Keep records of requests
- Escalate if needed - May need management intervention
Certificate Requirements
Valid certificates must include:
- Payer's name, address, and TIN
- Your name, address, and TIN
- Certificate number
- Payment description
- Gross amount
- WHT rate and amount
- Date of issue
- Authorized signature
Record Keeping
Maintain organized records:
- Store certificates securely
- Create certificate register
- Track by date, payer, amount
- Reconcile to income records
- Keep for at least 6 years
Claiming WHT Credits Against CIT
The Annual Process
At year-end when calculating CIT:
Step 1: Calculate taxable profit
- Revenue minus allowable expenses
- Apply tax rules and adjustments
Step 2: Calculate CIT liability
- Apply CIT rate to taxable profit
- Standard rate: 30%
- Small company rate: 0% (if qualifying)
Step 3: Summarize WHT credits
- Total all valid certificates
- Ensure all relate to current year income
Step 4: Offset credits
- Deduct WHT credits from CIT liability
- Balance is net CIT payable
Step 5: File return
- Attach schedule of WHT credits
- Support with copies of certificates
Example: Full Calculation
| Item | Amount |
|---|---|
| Taxable profit | ₦50,000,000 |
| CIT @ 30% | ₦15,000,000 |
| Less: WHT credits | |
| - Consulting fees (various clients) | (₦3,000,000) |
| - Rental income | (₦500,000) |
| - Contract payments | (₦1,500,000) |
| Total WHT credits | (₦5,000,000) |
| Net CIT payable | ₦10,000,000 |
Special Situations
Excess WHT Credits
What if WHT exceeds your CIT liability?
Example:
| Item | Amount |
|---|---|
| CIT liability | ₦2,000,000 |
| WHT credits | ₦3,000,000 |
| Excess credits | ₦1,000,000 |
Options for excess credits:
- Carry forward - Apply to next year's CIT
- Request refund - Apply to NRS (process can be lengthy)
Most businesses carry forward due to refund processing times.
Dividends Received
WHT on dividends received has special treatment:
- WHT is deducted at 10%
- Dividend income may be partially exempt from CIT
- WHT credit may still be available for non-exempt portion
- Consult tax advisor for specific treatment
Non-Resident WHT (Received from Abroad)
If foreign clients deduct tax from your payments:
- Foreign tax may be creditable against Nigerian CIT
- Subject to tax treaty provisions
- Maximum credit usually limited to Nigerian tax on that income
Timing Issues
WHT relates to the year the income was earned:
- January 2025 certificate → 2025 CIT return
- Even if received in February 2025
- Match certificates to income periods
Reconciliation Requirements
Matching Credits to Income
NRS expects reconciliation:
- WHT credits should relate to reported income
- Large credits without corresponding income raise questions
- Be prepared to demonstrate the connection
Reconciliation Schedule
Prepare a schedule showing:
| Payer | Certificate No | Date | Income Reported | WHT Credit |
|---|---|---|---|---|
| ABC Ltd | WHT/2025/001 | Jan-25 | ₦500,000 | ₦50,000 |
| XYZ Corp | WHT/2025/015 | Mar-25 | ₦1,000,000 | ₦100,000 |
| Gov't Agency | WHT/2025/022 | Jun-25 | ₦2,000,000 | ₦100,000 |
| Total | ₦3,500,000 | ₦250,000 |
Common Reconciliation Issues
Issue 1: Certificate amount doesn't match income
- WHT should be calculable from income
- ₦100,000 WHT at 10% means ₦1,000,000 income
Issue 2: Certificate date vs income date
- Certificate date may differ from invoice date
- Income timing based on accrual rules
- Document and explain differences
Issue 3: Missing certificates
- Income reported but no certificate
- Estimate credit if income is certain
- Document efforts to obtain certificate
Audit Considerations
What NRS Looks For
During audits, NRS (Formerly FIRS) verifies:
- Certificates are authentic
- Amounts match reported credits
- Income corresponding to WHT is reported
- Certificates are from the correct period
- Duplicate claims haven't been made
Audit-Ready Documentation
Maintain files containing:
- Original certificates
- Supporting invoices
- Payment receipts (showing net amount)
- Reconciliation schedules
- Any correspondence about certificates
Common Audit Adjustments
| Issue | NRS Action |
|---|---|
| Invalid certificate | Disallow credit |
| Certificate for different entity | Disallow credit |
| Duplicate claim | Disallow, potential penalty |
| No supporting income | Query and investigate |
Industry Considerations
Professional Services Firms
High WHT credit exposure:
- Most income subject to WHT
- Significant credits accumulated
- May have excess credits regularly
Best Practice: Active certificate collection from all clients.
Construction Companies
Construction contracts attract 5% WHT:
- Lower rate, but high contract values
- Substantial credits
- Often from government contracts
Best Practice: Track per project and reconcile to revenue.
Real Estate (Rental Income)
Rental income subject to 10% WHT:
- Tenants (especially companies) deduct WHT
- Monthly deductions accumulate
Best Practice: Monthly collection and tracking.
How Finora Manages WHT Credits
Credit Certificate Tracking
Finora makes WHT credit management automatic:
Recording Certificates:
- Enter certificate details
- Link to income transactions
- Attach scanned copies
Certificate Register:
- Complete listing of all certificates
- Searchable by payer, date, amount
- Status tracking (received, pending, matched)
Reconciliation Support
Automatic Matching:
- Link certificates to invoices
- Flag unmatched income (missing certificates)
- Flag unmatched certificates (income not recorded)
Reconciliation Report:
- Compare WHT credits to income
- Identify discrepancies
- Ready for audit
CIT Planning
Real-Time Tracking:
- Running total of WHT credits
- Projected CIT liability
- Net CIT estimate
Year-End Preparation:
- Summary of all credits for CIT return
- Supporting schedules
- Certificate inventory
Practical Tips
1. Collect Certificates Promptly
Don't wait until year-end:
- Request certificates with each payment
- Follow up on missing certificates
- Easier when transaction is fresh
2. Create a Certificate Log
Track all certificates:
- Date received
- Payer
- Amount
- Certificate number
- Status (filed, matched, etc.)
3. Reconcile Quarterly
Don't leave reconciliation to year-end:
- Quarterly review of credits vs income
- Identify issues early
- Follow up on gaps
4. Maintain Relationships
Good relationships help:
- Finance contacts at key clients
- Professional follow-up on certificates
- Mutual understanding of requirements
5. Use Technology
Manual tracking is error-prone:
- Use accounting software
- Automate where possible
- Reduce administrative burden
Frequently Asked Questions
What if my client won't provide a certificate?
Persist professionally. The certificate is your right—WHT was deducted from your income. Escalate if necessary. As a last resort, estimate the credit and document your efforts.
Can I claim credits without the physical certificate?
Technically, NRS requires certificates. However, if you have other evidence (invoices showing deduction, bank statements showing net payment), document thoroughly and be prepared to explain.
What if the certificate has errors?
Request a corrected certificate from the payer. If unable to obtain, document the error and the correct figures with supporting evidence.
How long are WHT credits valid?
Credits should be used in the year they relate to. Excess credits can typically be carried forward. Check current rules for time limits on carryforwards.
Can I sell or transfer WHT credits?
No. WHT credits are specific to the taxpayer who earned the income. They cannot be transferred to another entity.
Conclusion
WHT credit certificates are valuable assets—they directly reduce your CIT liability. Managing them well requires:
- Active collection from all clients who deduct WHT
- Careful record keeping of all certificates
- Regular reconciliation to income records
- Proper claiming in CIT returns
- Audit-ready documentation
Finora automates WHT credit tracking, reconciliation, and reporting—ensuring you capture every credit you're entitled to and can demonstrate them to NRS.
Maximize your WHT credits
Get started for free and let Finora track your WHT certificates, reconcile to income, and prepare credits for your CIT return.
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