Financial Planner FAQ

This page explains how Prosper handles yearly projections, withdrawals, tax treatment, and common setup questions in plain language.

Educational use only. This is planning support, not tax or financial advice.

What does the simulation do each year?

It computes yearly inflows, outflows, and asset growth. If outflows are higher than inflows, the app performs drawdown based on your configured order.

How does Drawdown Order work?

Drawdown order defines which source is used first when money is needed (for example: cash, savings, investments, tradeable assets). If one source is not enough, the next source is used automatically.

When are taxes applied?

Taxes are applied only on sell events (drawdown or forced liquidation), not on unrealized gains. Taxes are off by default until you configure and enable them.

What is the difference between tax treatments?

Standard uses a global tax rate on gains only. Tax-Free has no tax on sale. Custom uses a custom rate on gains only. Tax-Deferred taxes the full withdrawn amount, not just gains.

What is Cost Basis (optional)?

Cost basis is the amount originally paid for an asset. It helps estimate the gains portion on sale. Tradeable assets let you set a custom cost basis; if not provided, the app defaults to the asset value at creation time.

Are savings withdrawals taxed?

In most countries, interest on savings is taxed when your bank credits interest, not when you withdraw. The savings growth rate you enter should already be net of any interest tax.

What is Tradeable Sale Mode?

Partial sale allowed means you sell only what is needed, common for stocks, ETFs, and crypto. Full sale only means the asset is treated as indivisible, common for house or car.

How do financed assets behave when sold?

Financed assets are sold in full. Sale proceeds first settle the remaining linked liability. Only the remaining net amount can cover drawdown.

What does Source of Funds = Asset mean?

On acquisition year, the selected source asset is sold first to fund the purchase. If that is not enough, the remaining amount follows your drawdown order.

What does Max Cash Reserve do?

It caps how much new positive allocation goes to cash. Surplus allocation is redirected to savings and investments according to configured ratios.

Why can cash become negative?

If all configured sources are exhausted and there is still uncovered outflow, the remaining amount is represented as negative cash. This warns that the plan is not sustainable under current assumptions.

How does retirement income switch work?

Before retirement age, salary is used as inflow. From retirement start year onward, pension inflow is used instead.

How can I set up house expenses?

Use Custom Entries and create recurrent outflows with monthly or annual frequency. You can split property tax, insurance, utilities, HOA, and maintenance for clearer tracking.

How can I set up subscription outflows?

Create recurrent monthly outflows in Custom Entries, either one line per subscription or grouped into one line item.

How can I set up a financed car?

Create an Asset and set payment method to Financed. Add down payment, financing rate, term, and frequency, then set value change type to Depreciate.

How can I model retirement accounts?

Create one tradeable asset per account and assign the tax treatment that best matches when taxes are usually due. This is a planning approximation, not tax advice.

How should I use this tool safely?

Use realistic assumptions and compare multiple scenarios (best case, base case, stress case). Small changes in growth, taxes, and outflows can create large long-term differences.

Ready to test your own scenario?

Install Prosper and simulate your profile, household, mortgage, and long-term investment plan with your own assumptions.