Estimate annual county land rates on the unimproved site value.
Annual land rates
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Monthly equivalent
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Rate applied
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A county charge, not a KRA tax
Land rates trip people up because they are not collected by the Kenya Revenue Authority at all. They are a local levy charged by the county government where your plot sits, and the money funds county services like roads, lighting, and waste collection rather than the national budget. That distinction matters in practice: there is no single nationwide rate the way there is for VAT or PAYE. Nairobi sets its own figure, Mombasa another, Kiambu another, each through its own county finance act. This tool gives you a quick annual estimate, but it leans on an indicative rate that you are meant to edit to match your own county.
The calculation itself is refreshingly simple. You take the value of your land and multiply it by the county rate. The default rate the calculator applies is roughly 0.115 percent a year, an indicative Nairobi figure rather than a fixed national number, and you can type in whatever rate your county actually uses. Because counties revise these rates and revaluation exercises change the base, confirm the live figure with your county before treating the estimate as a bill.
Site value, not market value
Here is the detail most owners miss. Land rates are charged on the unimproved site value, the worth of the bare land as if nothing were built on it, not the market price of the property with its house, fence, and borehole. So a modest plot with an expensive house pays rates on the land alone, and the building is ignored for this purpose. Each county keeps a valuation roll that records the site value of every parcel, and that roll, not your sense of what the property would fetch today, is the official starting point. If your valuation looks stale or wrong, counties have an objection process, and getting the site value corrected can be worth more over time than haggling over the rate.
Estimating the bill on a KES 6 million plot
Take the default figures: a plot with an unimproved site value of KES 6 million and the indicative 0.115 percent rate the calculator applies. Multiply the two and the annual land rates come to KES 6,900. Spread across the year that is KES 575 a month, a modest recurring cost, though it climbs in step with both the site value and whatever rate your county sets.
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The chart shows how the same KES 6 million plot would be charged under three different county rates. The bill scales straight up with the rate, so a county at twice the rate charges twice as much on the identical site value.
Why your neighbour's rate may differ
Two plots of equal value in different counties can carry quite different bills, and even within one county the basis can shift after a revaluation. The practical tip is to treat the default 0.115 percent as a placeholder only and look up your county's current rate before budgeting. A common and expensive mistake is letting land rates fall into arrears. Unlike a one-off purchase cost, rates accrue every year whether or not you build, and counties charge penalties and interest on unpaid balances. Worse, you usually cannot get a land rates clearance certificate, which a buyer needs before a transfer can complete, until the arrears are cleared. So an owner who ignored rates for years can find a sale stalling at the last step. Paying the modest annual figure on time, and keeping the clearance certificate current, saves a far larger headache later. Confirm the exact rate, payment channel, and any rebates for early payment with your county government.
What happens if I do not pay my land rates?
The balance does not disappear, it grows. Counties levy penalties and interest on outstanding rates, so a small annual charge left unpaid can compound into a meaningful debt. The sharper consequence comes when you try to sell or transfer the land: most counties withhold the land rates clearance certificate until arrears are settled, and without that certificate the transfer cannot be registered. Clearing rates promptly each year avoids both the penalties and the transaction delay.
How are land rates different from land rent?
They are two separate charges and people often confuse them. Land rates are levied by the county on the site value of your parcel and fund local services. Land rent is a charge on leasehold land where the government is the ultimate landlord, paid for the right to hold the lease. You can owe both on the same property, a county rate and a ground rent, so when budgeting for a leasehold plot, account for each separately and confirm the figures with the relevant authority.