Two of the most common tax questions for Zambian business owners are "Do I pay turnover tax or VAT?" and "Can I be on both?" This post explains the relationship between the two regimes, when each applies, and what happens when your business grows past the turnover tax threshold.
Check your numbers with our turnover tax calculator and VAT calculator.
The key difference
Turnover tax and VAT are mutually exclusive. You cannot be on both at the same time:
Turnover tax is a simplified income tax replacement - 5% on gross sales, no deductions
VAT is a consumption tax - 16% charged to customers, with input tax credits on your purchases
If you voluntarily register for VAT, you are automatically excluded from turnover tax. And if your turnover exceeds K5,000,000, you must leave the turnover tax regime.
Side-by-side comparison
Feature | Turnover Tax | VAT |
|---|---|---|
Rate | 5% on gross turnover | 16% on value added |
Who pays | The business (from revenue) | The customer (collected by business) |
Threshold | K12,001 to K5,000,000 annual turnover (K12,000 or less exempt) | Mandatory above K800,000 annual turnover |
Expense deductions | None | Input VAT credits on purchases |
Filing frequency | Monthly (14th) | Monthly (18th electronic, 5th manual) |
Replaces | Income tax | Nothing - paid alongside income tax |
Voluntary registration | Automatic if eligible | Optional below K800,000 |
The threshold gap
There is an important gap in the thresholds:
Turnover tax applies from K12,001 up to K5,000,000 annual turnover (K12,000 or less is exempt)
Mandatory VAT registration kicks in at K800,000 annual turnover
This means a business with annual turnover between K800,000 and K5,000,000 could technically qualify for turnover tax and be required to register for VAT. However, voluntarily registering for VAT excludes you from turnover tax. In practice, many businesses in this range choose one path:
Stay on turnover tax and do not register for VAT (if turnover is below K800,000 or you are not required to register)
Register for VAT and switch to standard income tax (if you want to claim input credits or your customers require VAT invoices)
When turnover tax is better
Turnover tax works well for businesses that:
Have low expenses relative to revenue (high margins)
Sell directly to consumers (who do not need VAT invoices)
Want minimal accounting and compliance burden
Have annual turnover well below K5,000,000
Examples: small retail shops, market traders, freelancers with few costs, service providers with low overheads.
When VAT is better
VAT registration makes more sense when:
Your business has significant input costs (you can reclaim VAT on purchases)
Your customers are VAT-registered businesses that need VAT invoices
Your turnover is approaching or exceeding K5,000,000
You operate in a sector excluded from turnover tax
Remember that VAT is collected from your customers - it is not a cost to your business if you manage input credits properly. The real cost comparison is between turnover tax (5% of revenue, no deductions) and income tax (tax on profit, with full expense deductions).
What happens when you cross the threshold
If your annual turnover exceeds K5,000,000, you must:
Stop filing under turnover tax from the following tax year
Register for standard income tax
Register for VAT if not already registered (mandatory above K800,000)
Begin keeping full financial records (income, expenses, assets)
This transition requires more detailed bookkeeping and potentially an accountant. Plan for it as your business grows.
For a step-by-step calculation guide, see How to calculate turnover tax. To check which businesses are excluded from the regime, read Turnover tax exclusions.