Withholding Tax (WHT) is one of the most misunderstood elements of Zambia's tax system. Many people treat it as a separate tax, but it is not - it is a collection mechanism. The person making a payment deducts a percentage of tax at source and remits it to the Zambia Revenue Authority (ZRA) on behalf of the recipient.
This guide covers every WHT category, the applicable rates, who is responsible for deducting, and when the tax is final versus credited. You can check any payment using our Withholding Tax Calculator.
What is Withholding Tax?
Under the Income Tax Act (Cap 323), Sections 80-82A, certain payments attract WHT. The payer (not the payee) is legally responsible for deducting the correct percentage from the gross payment and remitting it to ZRA. The payee receives the net amount after deduction.
WHT applies to payments such as dividends, interest, royalties, management and consultancy fees, commissions, construction and haulage services, public entertainment fees, and reinsurance premiums.
Who must deduct WHT?
Any person or entity making a payment that falls under WHT categories must deduct the tax. This includes:
Companies paying dividends to shareholders
Banks and financial institutions paying interest
Businesses paying consultancy or management fees to third parties
Entities paying royalties for intellectual property or commodity extraction
Organisations engaging non-resident contractors for construction or haulage
The payer files a WHT return and remits the deducted tax to ZRA. Failure to deduct or remit makes the payer personally liable for the tax amount.
The tax point
WHT becomes due at the earliest of three events:
The date the income is actually paid
The date the income accrues
The date the income becomes due or is disposed of in the payee's favour
This means WHT can be triggered even before money physically changes hands, if the income has accrued or become due.
WHT rates by category
The following table shows all WHT categories with their rates for residents and non-residents:
Category | Section | Resident | Non-Resident | Final Tax |
|---|---|---|---|---|
Dividends | Section 81 | 15% | 20% | Yes (both) |
Interest | Section 82A | 15% | 20% | Yes (both) |
Royalties | Section 80 | 15% | 20% | Yes (both) |
Management/Consultancy Fees | Section 82A | 15% | 20% | No (resident) / Yes (non-resident) |
Commissions | Section 82A | 15% | 20% | Yes (both) |
Construction and Haulage | Section 81A | N/A | 20% | Yes (non-resident only) |
Public Entertainment | Section 82A | N/A | 20% | Yes (non-resident only) |
Reinsurance Premiums | Section 82A | 0% | 20% | Yes |
Commodity Royalty | Section 82A | 15% | 15% | Yes |
Govt Bond Coupons (Exempt Orgs) | Section 82A | 15% | 15% | Yes |
Key exceptions: Mining company dividends are exempt (0%). Individual savings account interest at banks is exempt. LuSE-listed company dividends paid to individuals are also exempt.
Resident vs non-resident differences
The distinction between resident and non-resident payees is critical:
Residents generally face a 15% rate. For most categories (dividends, interest, royalties, commissions), this is a final tax. The important exception is management/consultancy fees - the 15% is credited against the annual income tax liability.
Non-residents face a 20% rate across nearly all categories, and it is almost always a final tax. No Zambian tax return is required for the non-resident payee.
Some categories (construction/haulage, public entertainment) apply only to non-residents.
When WHT is final tax vs credited
Understanding whether WHT is a final tax matters for tax planning:
Final tax means the WHT fully settles the tax obligation. No further return is needed for that income.
Credited means the WHT is an advance payment. The payee includes the gross income on their annual return, calculates total tax, and offsets the WHT already paid.
The most notable non-final category is management and consultancy fees paid to residents at 15%. A resident consultant receiving these payments must file an annual income tax return and may owe additional tax (or receive a credit) depending on their total taxable income.
For a detailed breakdown of which categories are final and which are credited, see our article on WHT final tax vs credited.
Remittance deadline
WHT returns and payments must be submitted to ZRA by the 14th day of the month following the month in which the payment was made or income accrued. For example, WHT deducted from a payment made on 10 March must be remitted by 14 April.
Late filing attracts penalties of 250 penalty units per month (or part thereof), and interest accrues on any unpaid tax.
Worked example
A Lusaka-based company pays a resident consultant K100,000 for management advisory services.
Step 1: Identify the category
Management/consultancy fees to a resident - Section 82A. Rate: 15%. Not a final tax.
Step 2: Calculate WHT
WHT = K100,000 x 15% = K15,000
Step 3: Determine net payment
Net payment to consultant = K100,000 - K15,000 = K85,000
Step 4: Remittance
The company must remit K15,000 to ZRA by the 14th of the following month and issue a WHT certificate to the consultant.
Important: Because this is not a final tax for a resident, the consultant must include the full K100,000 as income on their annual return. The K15,000 WHT is credited against their total income tax liability for the year.
Double Tax Treaties
Zambia has Double Taxation Agreements with 23 countries that may reduce WHT rates on dividends, interest, and royalties. The UAE treaty offers the most favourable rates at 5% across all three categories. Treaty rates require advance clearance from ZRA.
For a full table of treaty rates by country, see our article on Zambia Double Tax Treaties and WHT.
Frequently asked questions
Who is responsible for deducting WHT?
The payer (the person or entity making the payment) is legally responsible for deducting WHT at the correct rate and remitting it to ZRA. If the payer fails to deduct, they become personally liable for the tax amount. The payee receives the net amount and a WHT certificate as proof of deduction.
What is the tax point for WHT?
The tax point is the earliest of three events: (a) when income is actually paid, (b) when income accrues, or (c) when income becomes due or is disposed of in the payee's favour. This means WHT can be triggered before physical payment if the income has accrued or become contractually due.
Can WHT be recovered if overpaid?
Yes. If WHT is deducted at a higher rate than applicable (for example, the domestic rate was used when a treaty rate should have applied), the payee can apply to ZRA for a refund. The application should include the WHT certificate, proof of residency in the treaty country, and evidence that treaty conditions are met. Processing times vary.
What records should a payer keep?
Payers must retain copies of all WHT certificates issued, the underlying contracts or invoices, proof of remittance to ZRA, and the WHT returns filed. These records should be kept for at least six years (the statutory limitation period). ZRA may request these during audits or assessments.
See also: Zambia Double Tax Treaties and WHT for treaty rate tables, and WHT final tax vs credited for a detailed breakdown of which categories settle the tax obligation and which require annual filing.