Stamp Duty On Lease Calculator

Work out stamp duty on lease instantly with clear inputs, formula shown and shareable results.

About Stamp Duty On Lease Calculator

Lease stamp duty is charged on the aggregate rent over the term, with a notional addition for any interest-free security deposit because it confers a benefit on the landlord. Ten percent of the deposit is a common convention. Longer terms therefore attract proportionally more duty, which is why some tenants prefer shorter terms with renewal options.

Formulas

Duty base

Base = average annual rent x term + 10 percent of the security deposit

Duty

Duty = base x applicable stamp duty rate

Worked example

With the default values below, Stamp Duty On Lease Calculator returns Stamp duty payable of $27,900.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Average annual rentminimum 0: 1,200,000
Lease termminimum 0.5 years: 9 years
Stamp duty rateaccepts 0.01–10 %: 0.25 %
Security depositminimum 0: 3,600,000

Results

Stamp duty payable: $27,900.00
Value on which duty is charged: $11,160,000.00
Total rent over the term: $10,800,000.00
Deposit added to the base: $360,000.00

Step by step

1Values used
2Duty base
3Duty
4Stamp duty payable= 27,900.00
5Value on which duty is charged= 11,160,000.00
6Total rent over the term= 10,800,000.00
7Deposit added to the base= 360,000.00

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax or fees or charges into account.
Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
Preliminary estimate only. Stamp duty rates and the treatment of deposits and options vary by jurisdiction and must be confirmed with a local adviser.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Preliminary estimate only. Stamp duty rates and the treatment of deposits and options vary by jurisdiction and must be confirmed with a local adviser.

Frequently Asked Questions

How is the Stamp Duty On Lease figure worked out?

Base = average annual rent x term + 10 percent of the security deposit. Lease stamp duty is charged on the aggregate rent over the term, with a notional addition for any interest-free security deposit because it confers a benefit on the landlord.

Does a renewal option extend the duty base?

Frequently yes. Many jurisdictions treat an option period as part of the term for duty purposes, so the base includes it whether or not the option is exercised.

What values do I need to enter?

This calculator takes 4 inputs: Average annual rent, Lease term, Stamp duty rate, Security deposit. The pre-filled defaults are a realistic worked example — replace them with your own site or project figures.