Stamp Duty Calculator

Use this calculator to estimate simplified stamp duty from property value and property type. It helps buyers and investors include transaction tax in early purchase-cost planning.

What this calculator does

The stamp duty calculator estimates a simplified duty amount based on property value and selected property type.

It uses:

• property value
• property type
• illustrative duty rate
• estimated duty amount

This gives a quick planning estimate before checking the exact rules in your jurisdiction.

How to use the stamp duty calculator

Enter the property value and choose the property type. The simplified model uses 5% for first-home purchases and 8% for investment or additional properties.

Stamp duty varies by country, state, province, buyer status, property value bands, and exemptions. Always verify rates with an official source or qualified adviser.

Stamp Duty Formula

Stamp duty = property value x applicable rate

Where the applicable rate is selected from the simplified property type assumptions.

Example calculation

If:

• Property value = 500,000
• Property type = investment
• Applicable rate = 8%
• Stamp duty = 40,000

An investment property worth 500,000 at an illustrative 8% rate has estimated stamp duty of 40,000.

What is stamp duty?

Stamp duty is a transaction tax that may apply when property changes ownership. It is often one of the largest upfront purchase costs after the deposit.

The exact calculation can be tiered and location-specific. This calculator uses simplified rates for planning only.

Interpreting your result

The result should be treated as an estimate, not a final legal or tax figure. A small rate difference can materially change the upfront cash required.

Add stamp duty to transfer costs, legal fees, and other buying costs when reviewing total acquisition cost.

When to use this calculator

Use this calculator when you want to:

• estimate purchase taxes
• compare buyer scenarios
• plan upfront cash needs
• screen acquisition affordability

Common mistakes

Common mistakes include:

• assuming rates are universal
• forgetting buyer-status rules
• excluding duty from cash planning
• using estimates as tax advice

FAQs

Are these stamp duty rates official?

No. The rates are illustrative and vary by jurisdiction.

Should stamp duty be included in investment cost?

Yes. It is normally part of acquisition cost when assessing total cash required.