Questions about Prosper

No. Prosper is a forward-looking financial simulator. It helps you model how retirement, housing, income, spending, debt, and investing decisions could affect your future rather than categorizing yesterday's purchases.

No. You enter the assumptions you want to model, so you can start without sharing bank credentials or importing transaction history.

Prosper is local-first, so your planning data stays on your device by default. Signing in does not upload it. If you explicitly enable Cloud sync in Preferences, Prosper syncs your planning data through your account. To recover it on another device, sign in there and enable Cloud sync.

What-If mode creates a temporary copy of your current plan. Change retirement age, income, costs, or other assumptions and compare the result with your base plan. Apply the change only if you want to keep it.

Monte Carlo analysis runs many randomized market paths and reports success probability plus pessimistic, median, and optimistic net worth outcomes. It helps you judge a range of futures instead of relying on one fixed growth rate.

Yes. You can build a profile, simulate future net worth, and use the mortgage and compound growth tools with the free plan. Pro unlocks Monte Carlo and advanced planning controls.

Each year, Prosper updates income, spending, debt payments, and asset growth. If spending is higher than income, it covers the gap using your Spending Order.

When yearly spending is higher than yearly income, Prosper uses your Spending Order to cover the gap. This tells the app what to use first, such as cash, savings, investments, or sellable assets. If one source is not enough, it automatically moves to the next.

Taxes are applied only when assets are sold, such as for spending or required liquidation. Unrealized gains are not taxed. Taxes are off by default until you configure and enable them.

Standard taxes gains using your global tax rate. Tax-Free applies no tax on sale. Custom taxes gains using a custom rate for that asset. Tax-Deferred taxes the full withdrawn amount instead of only the gain.

Cost basis is what you originally paid for an asset. Prosper uses it to estimate how much of a sale is profit, so taxes can be calculated more realistically. If you leave it blank, the app uses the asset value at the time you created it.

Usually no. In many countries, savings interest is taxed when the bank credits it, not when you withdraw it. The savings growth rate you enter should already reflect that.

Use Partial sale allowed for assets you can sell in pieces, such as stocks, ETFs, or crypto. Use Full sale only for assets you would normally sell all at once, such as a house or car.

Financed assets are always sold in full. The sale proceeds first pay off the remaining linked liability. Only the amount left after that can be used for spending.

When creating an asset, use Pay with and choose Asset if you want the purchase funded by selling another asset. In the purchase year, Prosper sells that selected asset first. If that is not enough, the remaining amount follows your Spending Order.

Max Cash Reserve sets the cash buffer you want to keep. Once cash reaches that level, extra surplus is redirected to Savings and Investments based on your allocation settings. It affects new surplus money only.

If all configured sources are exhausted and there is still spending left uncovered, Prosper shows the remaining gap as negative cash. This is a warning that the plan is not sustainable under the current assumptions.

Before Retirement Age, Prosper uses Salary as income. Starting in the retirement year, it stops using Salary and uses Pension instead.

Go to Pro > Assets / Liabilities / Cashflows and create a Cashflow in Outflow mode. Mark it as recurrent, choose monthly or annual frequency, and set the start age and term if needed. You can create separate entries for property tax, insurance, utilities, HOA, and maintenance, or group them if you prefer.

Go to Pro > Assets / Liabilities / Cashflows and create a Cashflow in Outflow mode with monthly frequency. You can create one entry per subscription or group them into one line item. Set the start age and term if the subscription should end later.

Go to Pro > Assets / Liabilities / Cashflows, create an Asset, and set Payment Method to Financed. Add the down payment, financing rate, term, and payment frequency, then set the value change type to Depreciate.

Create one sellable asset for each retirement account, then choose the tax treatment that best matches when that account is usually taxed. As a rough guide, tax-free withdrawal accounts can use Tax-Free, accounts taxed mainly at withdrawal can use Tax-Deferred, and regular taxable accounts can use Standard or Custom. This is a planning approximation, not tax advice.

Use realistic assumptions and compare multiple scenarios, such as best case, base case, and stress case. Small changes in growth, taxes, and spending can lead to very different long-term outcomes.