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Free Kenya Property & Tax Tool

Stamp Duty Calculator Kenya 2026

Estimate stamp duty for common Kenyan instruments, check a late-payment penalty, or work out the wider cash cost of buying property. Where the law depends on the exact instrument or official assessment, the tool says so instead of inventing a rate.

Private by design. Your figures stay in your browser. Nothing you enter is sent to Njau & Associates merely by using this calculator.

Work out the likely stamp-duty position

Choose the tool you need. Rates and fixed fees are centralised in one configuration file and date-stamped for maintenance.

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What document are you stamping?

Start with the legal instrument. The calculator only produces a numeric result where the current public rule has been verified strongly enough to publish.

For planning the calculator uses the higher value entered. The final official assessment/valuation prevails.
Municipal/town status may not be obvious in rapidly urbanising areas. Confirm the applicable classification rather than relying on an estate or marketing name.
No exemption selected.
Verified published land-service rates: new charge 0.1% of secured amount; discharge 0.05% of discharged amount. A further charge is not assumed to use the discharge rate.
Why no guessed percentage? Lease duty can depend on the term, rent, premium and exact instrument. This branch captures the facts and routes the user to official assessment rather than publishing an unverified flat rate.
Current approach: this live tool does not auto-apply a commonly quoted share-transfer rate until the current official rate and precise instrument are fully verified. It will give an assessment pathway instead of a false number.
Classification matters. KRA currently lists affidavits, court orders, cautions, caveats and wills among instruments not assessed for stamp duty. Other documents may require assessment.

Late-payment penalty estimator

Estimate the KRA-published 5% penalty for every quarter (or part) from the instrument date. This is a planning calculation; the official penalty assessment prevails.

KRA guidance states documents executed abroad should be stamped within 30 days of receipt in Kenya.

Total cost of buying property in Kenya

Separate the buyer's actual cash requirement from seller-side Capital Gains Tax. Statutory items are calculated; variable charges remain editable estimates.

Estimate — editable. Blank uses the same graduated conveyancing scale as the Njau Legal Fees / Property Cost tools.
Seller-side CGT illustration: enter seller acquisition and allowable cost information below. It is shown separately and is not added to the buyer's cash requirement.
Understand your result

Practical guidance for your next decision.

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