About this calculator

What equity actually means

Your equity is the portion of your property you truly own — market value minus outstanding bond balance. It grows from two sources: principal repayments (direct debt reduction) and property appreciation (market value growth). In early bond years, appreciation often contributes more to equity growth than principal repayments, because most of the bond payment goes to interest.

Why milestones matter

The 25% equity milestone (LTV dropping below 75%) is significant for future refinancing — lenders typically offer better rates below 80% LTV. At 50% equity you have a meaningful asset base for investment decisions. Full ownership at bond payoff is one of the most powerful wealth events in most South Africans' financial lives.

Accelerating your equity

Extra bond payments go directly to principal — not interest — which both reduces your outstanding balance immediately and saves compounding interest over the remaining term. Even R500/month extra on a 20-year bond accelerates payoff by years and saves hundreds of thousands in interest.

Assumptions applied

  • Bond amortisation uses a standard fixed-payment annuity formula. SA bonds are variable-rate — your actual payment changes when the prime rate changes.
  • Property appreciation applies at a constant monthly rate. SA property values vary significantly by location, market cycle, and property type.
  • Equity at payoff is approximately 100% of the final property value, since outstanding balance is zero. The precise percentage depends on how appreciation compounds to payoff.
  • Existing bond mode uses your outstanding balance and remaining term to compute the current monthly payment. If your bond has a different payment history, your actual balance may differ.

What this calculator doesn't account for

  • Does not model rate changes. A 0.25% rate hike or cut changes your monthly payment and equity trajectory.
  • Does not account for selling costs (estate agent commission ~6.9%) which reduce realised equity on sale.
  • Does not model the impact of accessing bond equity via a revolving credit facility or refinancing.
  • Property appreciation is a single national average — Cape Town and Sandton have historically outperformed this rate significantly.