Stamp duty on a lease based on annual rent and lease term.
Lease stamp duty
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Rate applied
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Term band
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What stamp duty on a lease actually taxes
Stamp duty is the tax you pay to make a document legally effective, and a lease is one of those documents. When you sign a lease for commercial premises, an office, a shop, or a long residential let, the lease has to be stamped before it can be registered against the title. The Kenya Revenue Authority administers stamp duty, and for a lease the charge is calculated on the annual rent, not on the value of the building and not on the total rent over the whole term. That last point trips up almost everyone, so the tool is deliberately built to mirror the real rule: it asks for the annual rent and the term, but it only multiplies the rent by a single rate.
The term matters because it decides which rate applies, and only that. A shorter lease is stamped more lightly than a longer one, on the logic that a long lease is closer in substance to acquiring an interest in the land. As modelled here, a lease under three years is charged at one percent of the annual rent, and a lease of three years or more is charged at two percent. These are the rates this calculator applies; stamp duty rates sit in the Stamp Duty Act and shift with successive Finance Acts, so confirm the current figure with the KRA before you budget around it.
A five-year lease at KES 1.2 million a year
Say you are taking a five-year lease on a retail unit at KES 1.2 million annual rent, the defaults this tool loads. Five years is comfortably over the three-year line, so the two percent band applies. The duty is two percent of the annual rent, full stop. Notice what does not happen: the calculator does not multiply by five. A common and expensive misreading is to assume duty is charged on KES 6 million, the rent across the whole term. It is not. The base is the yearly rent.
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The chart contrasts the two bands on the very same KES 1.2 million rent. The left bar is what you would pay if the lease ran under three years; the right is the two percent you actually pay at five years. The gap is the whole story of how the term changes your bill.
The three-year boundary, and who pays
The sharpest edge in this calculation is the three-year line. A lease of exactly three years lands in the higher band, so a thirty-six-month lease is stamped at two percent while a thirty-five-month lease is stamped at one. If your negotiation is hovering near that mark, the duty difference is a real lever. By convention the lessee, the tenant taking the premises, bears the duty and must pay it within the statutory window after execution before the lease is registered. Stamping late can attract penalties, so it is not a step to defer until the lawyers chase you.
Who this calculator helps
It is aimed at tenants signing commercial or long residential leases, landlords drafting them, and advocates giving a client a fast number before the formal assessment. A practical judgement call: if your lease includes a rent escalation or a premium paid up front, the assessed duty can differ from this clean estimate, because the duty may be computed on the average yearly rent or include the premium. Use this figure to budget, then let the conveyancer confirm the assessed amount.
Is the duty different for residential versus commercial leases?
The lease stamp duty structure keys off the term, not whether the premises are a home or a shop. What changes in practice is that long residential or commercial leases are the ones routinely registered, so the duty actually gets paid. Short residential tenancies are often left unstamped, which is a risk if you ever need to enforce the lease in court, because an unstamped instrument can be hard to rely on as evidence.
What if the rent changes during the lease?
This tool uses a single annual rent figure. Where a lease steps the rent up over the years, the KRA may assess duty on the average annual rent across the term, which can sit above the first year's rent. If your lease has built-in increases, enter a figure closer to the average rather than the opening rent, and treat the result as indicative until the formal assessment confirms it.