This prompt guide is locked.
Access to Day 16 requires starting the series. One new prompt unlocks every 24 hours.
Rentvesting Analysis.
Renting where you live and investing elsewhere is a genuine strategy for buyers priced out of their preferred suburb. The maths only works under specific conditions — this prompt models the comparison honestly, including the lifestyle cost most rentvesting calculators ignore.
Why this matters
Rentvesting became a popular strategy in Australian capital cities when the gap between where young professionals wanted to live and where they could afford to buy became too large to bridge in a single purchase. The logic is straightforward: rent in the suburb where you want to live, buy an investment property where you can afford the entry price, use rental income and tax benefits to fund the carry, and build equity in the investment property that eventually funds the purchase of the owner-occupied home.
The strategy works. Under the right conditions. With the right investment property in the right location. And for buyers who can genuinely maintain the discipline of staying in the rental market for 5 to 10 years without upgrading their lifestyle as their equity grows.
Most rentvesting analyses present a favourable comparison because they use optimistic capital growth assumptions for the investment property, full negative gearing benefits at the buyer’s current marginal tax rate, and do not include the stamp duty cost that will apply when the buyer eventually purchases their PPOR — at a price point that may be significantly higher than the investment property entry price.
**Real case study summary:** A couple in Sydney used the rentvesting analysis prompt to compare buying a $600,000 apartment in Parramatta as an investment while renting in Mosman versus buying a $1.3 million apartment in Mosman directly. The honest rentvesting analysis surfaced: the CGT liability on the investment property at exit, the stamp duty they would pay on the eventual Mosman purchase, the rent increases they would face in Mosman over 10 years, and the lifestyle cost of being tenants while their friends became homeowners. The rentvesting strategy was financially defensible — but the lifestyle assumptions made it less attractive than the initial comparison suggested. They bought the Mosman apartment.
“Rentvesting works as a strategy. It doesn’t always work as a plan.
What you're building
A comprehensive rentvesting comparison model calculating: long-term net wealth outcomes, capital gains tax at exit, stamp duty concession thresholds, ongoing rental holding costs, and lifestyle/tenancy impacts over a 5 to 10 year horizon.
Claude (free tier works), your current rent, target investment purchase price, expected yield, marginal tax rate, and target owner-occupier purchase price.
Copy the prompt.Paste your details.Analyze the output.
Paste the prompt below into Claude or ChatGPT. Replace the bracketed fields with your specific property or portfolio details.
Always verify the AI's assumptions with qualified professionals. This output is a first-pass educational tool, not advice.
Rentvesting comparison
Rentvesting vs home owner-occupier comparison · capital gains tax model
You are an Australian property finance educator helping a buyer objectively analyse the rentvesting strategy — renting where you want to live while buying an investment property in a more affordable location. Run the comparison honestly, including the costs most rentvesting calculators ignore. MY DETAILS: - Current situation: [currently renting / living with family / I own my home] - Where I want to live: [suburb, state — the location I prefer but may not be able to afford to buy in] - Rent I currently pay or would pay in my preferred location: $[amount per week] - My available deposit: $[amount] - My estimated borrowing capacity: $[amount or 'I don't know yet'] - Target investment property: [suburb, state, price, type — the property I am considering buying as the investment] - Expected rental income from investment property: $[amount per week] - My gross annual income: $[amount] - My tax situation: [I am in the [X%] marginal tax bracket / I don't know] - My primary financial goal: [build equity as quickly as possible / maintain maximum cash flow / combination] - How long I plan to rentvest before buying my PPOR: [X years / I don't know] Return a rentvesting analysis with these 6 sections: ## 1. THE RENTVESTING PROPOSITION — WHAT IT ASSUMES Explain what rentvesting is actually betting on: - It assumes the investment property location will produce stronger capital growth or better cash flow than my preferred location - It assumes I am disciplined enough to stay in the rental market and not upgrade my lifestyle as my equity grows - It assumes I am comfortable not owning the home I live in — with the lifestyle constraints that creates - It assumes the tax benefits of negative gearing are worth the cash flow cost - Flag: rentvesting works well as a wealth-building strategy under specific conditions. It does not work for everyone, and the lifestyle cost is real and often underestimated. ## 2. THE COMPARISON — RENTVESTING VERSUS BUYING WHERE I WANT TO LIVE Run both scenarios side by side: Scenario A — Buy in my preferred location: - Purchase price: $[estimated for a suitable property in my preferred location] - Required deposit at 80% LVR: $[calculate] - Stamp duty: $[estimate for state] - Total funds to purchase: $[calculate] - Monthly mortgage repayment (P&I): $[estimate] - Monthly outgoings total (mortgage + rates + insurance): $[estimate] - Monthly net housing cost: $[calculate — noting no rent received] Scenario B — Rentvest: - Rent I pay in preferred location: $[per month] - Investment property purchase price: $[amount I described] - Required deposit at 80% LVR: $[calculate] - Stamp duty on investment property: $[estimate] - Total funds to purchase investment: $[calculate] - Investment property monthly mortgage repayment: $[estimate] - Investment property rental income received: $[per month] - Net monthly cash flow on investment property before tax: $[calculate] - Monthly rent I pay: $[per month] - Total net monthly housing cost (rent paid minus net investment cash flow): $[calculate] ## 3. THE EQUITY BUILDING COMPARISON Over 5 years and 10 years, compare the equity position under both scenarios. Use assumed capital growth rates and flag that these are assumptions only. Note clearly: capital growth assumptions are the most uncertain variable in this comparison. A small difference in growth rate between the two properties fundamentally changes which strategy wins. Do not rely on any capital growth assumption as a given. ## 4. THE COSTS MOST RENTVESTING CALCULATORS MISS - The lifestyle cost: you do not own the home you live in. No modifications without permission, possible forced moves at lease end, and the psychological cost of renting in your 30s and 40s while peers own their homes. - Stamp duty asymmetry: when you eventually buy your PPOR, you pay full stamp duty (no first home buyer concession if you have already purchased). Quantify this cost at the price point you expect to buy at. - CGT on exit: the investment property does not have the main residence CGT exemption. When you sell, you pay CGT on the gain (with the 50% discount if held more than 12 months). Estimate the CGT exposure. - Landlord dependency: you can be asked to vacate at the end of a lease. This is not a theoretical risk — it disrupts your life, particularly if you have children. - Rent increases: your rent is not fixed. Your mortgage would be. Over 10 years, rent in your preferred location may increase substantially. ## 5. THE RENTVESTING VIABILITY TEST For my specific situation, answer these four questions: 1. Is my available deposit genuinely sufficient for the investment property I described at 80% LVR, including all costs? 2. Is the investment property cash flow positive, neutral, or negatively geared — and can I sustain the negative gearing cost? 3. What is my path to buying my PPOR eventually — how many years and at what equity position does it become feasible? 4. Does my income level actually benefit from negative gearing — am I in a tax bracket where the deduction is meaningful? ## 6. WHAT I SHOULD DISCUSS WITH A BROKER AND ACCOUNTANT Generate 5 questions for a mortgage broker and 4 questions for an accountant that are specific to my rentvesting situation. --- Educational analysis only. Not financial, tax, or investment advice. Rentvesting involves complex tax, financial, and lifestyle considerations. Engage a qualified accountant for tax advice on negative gearing and CGT implications, and a mortgage broker for finance structure advice, before making any rentvesting decision.
A couple in Sydney used the rentvesting analysis prompt to compare buying a $600,000 apartment in Parramatta as an investment while renting in Mosman versus buying a $1.3 million apartment in Mosman directly. The honest rentvesting analysis surfaced: the CGT liability on the investment property at exit, the stamp duty they would pay on the eventual Mosman purchase, the rent increases they would face in Mosman over 10 years, and the lifestyle cost of being tenants while their friends became homeowners. The rentvesting strategy was financially defensible — but the lifestyle assumptions made it less attractive than the initial comparison suggested. They bought the Mosman apartment.
Your first run is fine. Your fifth is sharp.
Update marginal tax rate inputs
Adjust your income brackets to see how negative gearing and depreciation tax offsets scale with your personal tax rate.
Stress-test rent increases on your home
Model a 5% and 10% rent hike in the suburb you live in to see how it affects your ability to carry the investment property.
Factor in future stamp duty at exit
Ensure the model accounts for the stamp duty you will eventually pay when purchasing your permanent home later.
Save this rentvesting analysis in your Claude Project. Use it to compare different investment locations while renting.
What it still gets wrong.
Capital gains tax at exit
Unlike your home, investment property sales trigger CGT, which can reduce your net wealth returns by 15-25% at sale.
Double stamp duty costs
Rentvesting means paying stamp duty on the investment property now, and paying it again later when buying your permanent residence.
Lifestyle costs are ignored
Being a tenant means facing rental increases, inspections, and moving costs, which standard rentvesting calculators rarely model.
Negative gearing is not a profit
Negative gearing tax offsets only recover a portion of your losses. A negatively geared property still requires ongoing cash outlays.
How this stacks.
Day 16 compares rentvesting options. Day 02 defines property strategy. Day 04 stress-tests investor cash flow. Run them to choose your entry path.
Before you choose to rentvest.
You'll have compared the long-term cash and lifestyle outcomes.
You'll have an indicative picture of how renting where you live and buying elsewhere compares once CGT at exit, stamp duty on your future home, and rent increases are factored in — general information to weigh with your accountant, not advice on what's right for you.
Downsizer checklist
Downsizing net equity and super contribution check · partial CGT scanner
Read Day 17 ↗